1 Cent Questions
1. What is the term that is used for the area of a network that is affected when a device or network service experiences problems?
failure domain
collision domain
broadcast domain
user domain
failure domain
A network designer is considering whether to implement a switch block on the company network. What is the primary advantage of deploying a switch block?
A single core router provides all the routing between VLANs.
The failure of a switch block will not impact all end users.
This is a security feature that is available on all new Catalyst switches.
This is network application software that prevents the failure of a single network device.
The failure of a switch block will not impact all end users.
What is the function of STP in a scalable network?
It decreases the size of the failure domain to contain the impact of failures.
It protects the edge of the enterprise network from malicious activity.
It disables redundant paths to eliminate Layer 2 loops.
It combines multiple switch trunk links to act as one logical link for increased bandwidth.
It disables redundant paths to eliminate Layer 2 loops.
What term is used to express the thickness or height of a switch?
rack unit
port density
domain size
module size
rack unit
What are two requirements when using out-of-band configuration of a Cisco IOS network device? (Choose two.)
HTTP access to the device
a terminal emulation client
Telnet or SSH access to the device
a direct connection to the console or AUX port
a connection to an operational network interface on the device
a terminal emulation client
a direct connection to the console or AUX port
Which port role is assigned to the switch port that has the lowest cost to reach the root bridge?
root port
non-designated port
designated port
disabled port
root port
What best describes the operation of distance vector routing protocols?
They use hop count as their only metric.
They only send out updates when a new network is added.
They send their routing tables to directly connected neighbors.
They flood the entire network with routing updates.
They send their routing tables to directly connected neighbors.
What are two reasons to install a single 48-port fixed configuration switch, rather than two 24-port fixed configuration switches, in a wiring closet that supports two classrooms? (Choose two.)
more power provided to each port
more ports available for end devices
higher uplink speeds
reduced power and space requirements
reduced number of VLANs/broadcast domains
more ports available for end devices
reduced power and space requirements
What are two load-balancing methods in the EtherChannel technology? (Choose two.)
combination of source port and IP to destination port and IP
source IP to destination IP
source port to destination port
combination of source MAC and IP to destination MAC and IP
source MAC to destination MAC
source IP to destination IP
source MAC to destination MAC
An EIGRP router loses the route to a network. Its topology table contains two feasible successors to the same network. What action will the router take?
The DUAL algorithm is recomputed to find an alternate route.
The router uses the default route.
The best alternative backup route is immediately inserted into the routing table.
The router will query neighbors for an alternate route.
The best alternative backup route is immediately inserted into the routing table.
Which configuration changes will increment the configuration revision number on the VTP server?
configuring trunk links on the VTP server
configuring or changing the VTP password
configuring or changing the VTP domain name
configuring or changing the VTP version number
configuring or deleting a VLAN or creating a VLAN name
configuring or deleting a VLAN or creating a VLAN name
What are three characteristics of VTP? (Choose three.)
In the default VTP mode, VLANs can be created and modified on a switch.*
Switches in VTP server mode store VLANs in the vlan.dat database.*
VTP-enabled switches exchange three types of advertisements: summary routes, subnet advertisements, and advertisement requests from transparent bridges.
The switch configuration must be saved and the switch reloaded to reset a configuration revision number.
VTP updates are exchanged across trunk links only.
In the default VTP mode, VLANs can be created and modified on a switch.
Switches in VTP server mode store VLANs in the vlan.dat database.
VTP updates are exchanged across trunk links only.
A network administrator is planning to add a new switch to the network. What should the network administrator do to ensure the new switch exchanges VTP information with the other switches in the VTP domain?
Configure the correct VTP domain name and password on the new switch.
Associate all ports of the new switch to a VLAN that is not VLAN 1.
Configure the VLANs on the new switch.
Configure all ports on the new switch to access mode.
Configure the correct VTP domain name and password on the new switch.
What is the purpose of the vlan.dat file on a switch?
It holds the running configuration.
It holds the saved configuration.
It holds the VLAN database.
It holds the operating system.
It holds the VLAN database.
What eliminates switching loops?
hold-down timers
poison reverse
Spanning Tree Protocol
Time to Live
VTP
Spanning Tree Protocol
Which spanning tree standard was developed by Cisco to provide separate instances of 802.1w per VLAN?
RSTP
802.1D
MSTP
Rapid PVST+
Rapid PVST+
Which statement defines the speed of convergence of routing protocols?
The time it takes a router to form a neighbor adjacency.
The time it takes a router to learn about directly connected links..
The time it takes a router to calculate the cost of a link.
The time it takes a router within a network to forward routing information.
The time it takes a router within a network to forward routing information.
hat are two requirements when using out-of-band configuration of a Cisco IOS network device? (Choose two.)
HTTP access to the device
a terminal emulation client
Telnet or SSH access to the device
a direct connection to the console or AUX port
a connection to an operational network interface on the device
a terminal emulation client
a direct connection to the console or AUX port
Which mode configuration setting would allow formation of an EtherChannel link between switches SW1 and SW2 without sending negotiation traffic?
SW1: on
SW2: on
SW1: desirable
SW2: desirable
SW1: auto
SW2: auto
trunking enabled on both switches
SW1: auto
SW2: auto
PortFast enabled on both switches
SW1: passive
SW2: active
SW1: on
SW2: on
A network engineer examining the operation of EIGRP on a router notices that one particular route is in an active state. What can the engineer determine about this route?
Data packets to be sent to the specified network will be forwarded on this route.
EIGRP query messages are being sent to other routers requesting paths to this network.
The Diffusing Update Algorithm has determined a successor and a feasible successor for this route.
The EIGRP processes are still calculating the administrative distance for this route.
EIGRP query messages are being sent to other routers requesting paths to this network.
A small company network has six interconnected Layer 2 switches. Currently all switches are using the default bridge priority value. Which value can be used to configure the bridge priority of one of the switches to ensure that it becomes the root bridge in this design?
28672
32768
34816
61440
28672
What is the value used to determine which port on a non-root bridge will become a root port in a STP network?
the highest MAC address of all the ports in the switch
the lowest MAC address of all the ports in the switch
the VTP revision number
the path cost
the path cost
Which three STP states were replaced with the RSTP discarding state? (Choose three.)
listening
learning
blocking
disabled
forwarding
listening
blocking
disabled
A network administrator enters the spanning-tree portfast bpduguard default command. What is the result of this command being issued on a Cisco switch?
Any switch port will be error-disabled if it receives a BPDU.
Any trunk ports will be allowed to connect to the network immediately, rather than waiting to converge.
Any switch port that has been configured with PortFast will be error-disabled if it receives a BPDU.
Any switch port that receives a BPDU will ignore the BPDU message.
Any switch port that has been configured with PortFast will be error-disabled if it receives a BPDU.
As the network administrator you have been asked to implement EtherChannel on the corporate network. What does this configuration consist of?
providing redundant links that dynamically block or forward traffic
grouping multiple physical ports to increase bandwidth between two switches
grouping two devices to share a virtual IP address
providing redundant devices to allow traffic to flow in the event of device failure
grouping multiple physical ports to increase bandwidth between two switches
Which industry-wide specification was developed to decrease the time that is needed to move to the forwarding state by switch ports that are operating in a redundantly switched topology?
VLSM
PVST
802.1Q
RSTP
VTP
RSTP
What is associated with link-state routing protocols?
low processor overhead
poison reverse
routing loops
split horizon
Shortest Path First calculations
Shortest Path First calculations
Which step can be taken to ensure that a switch added to the network does not overwrite the VLAN databases on existing switches in the same VTP domain?
Change the VTP mode to client.
Reset the switch VTP revision number to 0.
Delete any configured VLANs and reboot the switch.
Erase the startup configuration and reboot the switch.
Reset the switch VTP revision number to 0.
Which two parameters must match on the ports of two switches to create a PAgP EtherChannel between the switches? (Choose two.)
MAC address
speed
VLAN information
PAgP mode
port ID
speed
VLAN information
How are externally learned EIGRP routes identified in the routing table?
EX
O1 E
D
*
EX
Which command will start the process to bundle two physical interfaces to create an EtherChannel group via LACP?
channel-group 2 mode auto
interface port-channel 2
channel-group 1 mode desirable
interface range GigabitEthernet 0/4 – 5
interface range GigabitEthernet 0/4 – 5
A network administrator configured an EtherChannel link with three interfaces between two switches. What is the result if one of the three interfaces is down?
The EtherChannel fails.
The remaining two interfaces continue to load balance traffic.
The remaining two interfaces become separate links between the two switches.
One interface becomes an active link for data traffic and the other becomes a backup link.
The remaining two interfaces continue to load balance traffic
hen EtherChannel is configured, which mode will force an interface into a port channel without exchanging aggregation protocol packets?
active
auto
on
desirable
on
A network administrator is analyzing the features that are supported by different first-hop router redundancy protocols. Which statement describes a feature that is associated with HSRP?
HSRP uses active and standby routers.
It uses ICMP messages in order to assign the default gateway to hosts.
It allows load balancing between a group of redundant routers.
HSRP is nonproprietary.
HSRP uses active and standby routers.
What is the term used to describe a network topology where the subnets from a major classful network address space are separated from each other by addresses from a different major classful network address?
multihomed network
converged network
discontiguous network
data network
discontiguous network
An STP instance has failed and frames are flooding the network. What action should be taken by the network administrator?
A response from the network administrator is not required because the TTL field will eventually stop the frames from flooding the network.
Spanning tree should be disabled for that STP instance until the problem is located.
Broadcast traffic should be investigated and eliminated from the network.
Redundant links should be physically removed until the STP instance is repaired.
Redundant links should be physically removed until the STP instance is repaired.
What does the SPF algorithm consider to be the best path to a network?
The path with the least number of hops.
The path with the smallest delays.
The path that includes the fastest cumulative bandwidth links.
The path that includes the fastest single bandwidth link.
The path that includes the fastest cumulative bandwidth links.
A network administrator is planning to add a new switch to the network. What should the network administrator do to ensure the new switch exchanges VTP information with the other switches in the VTP domain?
Configure the correct VTP domain name and password on the new switch.
Associate all ports of the new switch to a VLAN that is not VLAN 1.
Configure the VLANs on the new switch.
Configure all ports on the new switch to access mode.
Configure the correct VTP domain name and password on the new switch.
A network administrator is analyzing first-hop router redundancy protocols. What is a characteristic of VRRPv3?
VRRPv3 is Cisco proprietary.
It supports IPv6 and IPv4 addressing.
It works together with HSRP.
It allows load balancing between routers.
It supports IPv6 and IPv4 addressing.
A network administrator is configuring EIGRP load balancing with the commands:
Router(config)# router eigrp 1
Router(config-router)# variance 3
Router(config-router)# end
What is a direct result of entering these commands?
Up to three equal cost routes to the same destination can be installed in the routing table.
Up to three unequal cost routes to the same destination can be installed in the routing table.
No matter whether the metric is equal or unequal, up to three routes to the same destination can be installed in the routing table.
Any feasible successor routes to the same destination network with a metric, equal to or less than 3 times that of the successor, will be installed in the routing table.
Any feasible successor routes to the same destination network with a metric, equal to or less than 3 times that of the successor, will be installed in the routing table.
What type of packets are sent when there is a change in the EIGRP topology?
hello
triggered bounded update
acknowledge
reply
triggered bounded update
What does the SPF algorithm consider to be the best path to a network?
The path with the least number of hops.
The path with the smallest delays.
The path that includes the fastest cumulative bandwidth links.
The path that includes the fastest single bandwidth link.
The path that includes the fastest cumulative bandwidth links.
hich three pieces of information does a link-state routing protocol use initially as link-state information for locally connected links? (Choose three.)
the link router interface IP address and subnet mask
the type of network link
the link next-hop IP address
the link bandwidth
the cost of that link
the link router interface IP address and subnet mask
the type of network link
the cost of that link
What indicates to a link-state router that a neighbor is unreachable?
if the router no longer receives routing updates
if the router no longer receives hello packets
if the router receives an update with a hop count of 16
if the router receives an LSP with previously learned information
if the router no longer receives hello packets
What are three features of EIGRP? (Choose three.)
uses the Shortest Path First algorithm
establishes neighbor adjacencies
uses the Reliable Transport Protocol
sends full routing table updates periodically
broadcasts updates to all EIGRP routers
supports equal and unequal cost load balancing
establishes neighbor adjacencies
uses the Reliable Transport Protocol
supports equal and unequal cost load balancing
What are two advantages of EtherChannel? (Choose two.)
Configuring the EtherChannel interface provides consistency in the configuration of the physical links.
Load balancing occurs between links configured as different EtherChannels.
EtherChannel uses upgraded physical links to provide increased bandwidth.
Spanning Tree Protocol views the physical links in an EtherChannel as one logical connection.
Spanning Tree Protocol ensures redundancy by transitioning failed interfaces in an EtherChannel to a forwarding state.
Configuring the EtherChannel interface provides consistency in the configuration of the physical links.
Spanning Tree Protocol views the physical links in an EtherChannel as one logical connection.
Which two pieces of information are contained within a link-state packet (LSP)? (Choose two.)
hop count
bandwidth
link type
delay
load
bandwidth
link type
An administrator was troubleshooting a router-on-a-stick topology and concluded that the problem was related to the configuration of VLANs on the router subinterfaces. Which two commands can the administrator use in the router to identify the problem? (Choose two.)
show controllers
show ip interface
show ip protocols
show running-config
show vlan
show ip interface
show running-config
What is a key distinction between classful and classless routing protocols?
Classful routing protocols are better suited for implementation in discontiguous networks.
Classful routing protocols do not send subnet mask information in their routing updates.
Classless routing protocols are not scalable.
Classless routing protocols do not allow for route summarization.
Classful routing protocols do not send subnet mask information in their routing updates.
By default, how many equal cost routes to the same destination can be installed in the routing table of a Cisco router?
2
4
16
32
4
What capability do protocol-dependent modules provide to the EIGRP routing protocol?
route different Layer 3 protocols
exchange summary routes between areas
combine routes learned from different protocols into a single routing table
load balance between routing protocols
route different Layer 3 protocols
When are EIGRP update packets sent?
only when necessary
when learned routes age out
every 5 seconds via multicast
every 30 seconds via broadcast
only when necessary
Which statement describes the autonomous system number used in EIGRP configuration on a Cisco router?
It carries the geographical information of the organization.
It functions as a process ID in the operation of the router.
It is a globally unique autonomous system number that is assigned by IANA.
It identifies the ISP that provides the connection to network of the organization.
It functions as a process ID in the operation of the router.
Which two parameters does EIGRP use by default to calculate the best path? (Choose two.)
delay
MTU
reliability
transmit and receive load
bandwidth
delay
bandwidth
An EIGRP router loses the route to a network. Its topology table contains two feasible successors to the same network. What action will the router take?
The DUAL algorithm is recomputed to find an alternate route.
The router uses the default route.
The best alternative backup route is immediately inserted into the routing table.
The router will query neighbors for an alternate route.
The best alternative backup route is immediately inserted into the routing table.
When EtherChannel is implemented, multiple physical interfaces are bundled into which type of logical connection?
interface range
loopback
VLAN interface
port channel
port channel
What is a difference between the routing protocols EIGRP and OSPF?
EIGRP uses hop count as the metric and OSPF uses cost as the metric.
EIGRP is an implementation of EGP whereas OSPF is an implementation of IGP.
EIGRP supports routing different network layer protocols whereas OSPF supports routing only IP-based protocols.
EIGRP only supports equal-cost load balancing whereas OSPF supports both equal-cost and unequal-cost load balancing.
EIGRP supports routing different network layer protocols whereas OSPF supports routing only IP-based protocols.
Refer to the exhibit. Switch SW-A is to be used as a temporary replacement for another switch in the VTP Student domain. What two pieces of information are indicated from the exhibited output? (Choose two.)
The other switches in the domain can be running either VTP version 1 or 2.
There is a risk that the switch may cause incorrect VLAN information to be sent through the domain.
VTP will block frame forwarding on at least one redundant trunk port that is configured on this switch.
VLAN configuration changes made on this switch will be sent to other devices in the VTP domain.
This switch will update its VLAN configuration when VLAN changes are made on a VTP server in the same domain.
There is a risk that the switch may cause incorrect VLAN information to be sent through the domain.
This switch will update its VLAN configuration when VLAN changes are made on a VTP server in the same domain.
What does the SPF algorithm consider to be the best path to a network?
The path with the least number of hops.
The path with the smallest delays.
The path that includes the fastest cumulative bandwidth links.
The path that includes the fastest single bandwidth link.
The path that includes the fastest cumulative bandwidth links.
When should EIGRP automatic summarization be turned off?
when a router has not discovered a neighbor within three minutes
when a router has more than three active interfaces
when a network contains discontiguous network addresses
when a router has less than five active interfaces
when a network addressing scheme uses VLSM
when a network contains discontiguous network addresses
When will a router that is running EIGRP put a destination network in the active state?
when the EIGRP domain is converged
when there is outgoing traffic toward the destination network
when there is an EIGRP message from the successor of the destination network
when the connection to the successor of the destination network fails and there is no feasible successor available
when the connection to the successor of the destination network fails and there is no feasible successor available
Which address is used by an IPv6 EIGRP router as the source for hello messages?
the 32-bit router ID
the IPv6 global unicast address that is configured on the interface
the all-EIGRP-routers multicast address
the interface IPv6 link-local address
the interface IPv6 link-local address
Which route or routes will be advertised to the router ISP if autosummarization is enabled?
10.0.0.0/8
10.1.0.0/16
10.1.0.0/28
10.1.1.0/24
10.1.2.0/24
10.1.3.0/24
10.1.4.0/28
10.0.0.0/8
Which command will configure an IPv6 default static route?
router(config)# ipv6 ::/64 s0/0/0
router(config-rtr)# redistribute static
router(config)# ipv6 route ::/0 s0/0/0
router(config)# ipv6 unicast-routing
router(config)# ipv6 route ::/0 s0/0/0
Which statement describes the load balancing behavior of EIGRP?
EIGRP for IPv4 supports unequal cost load balancing, but EIGRP for IPv6 does not.
EIGRP for IPv6 supports unequal cost load balancing, but EIGRP for IPv4 does not.
Neither EIGRP for IPv4 nor EIGRP for IPv6 support unequal cost load balancing.
Both EIGRP for IPv4 and EIGRP for IPv6 support unequal cost load balancing.
Both EIGRP for IPv4 and EIGRP for IPv6 support unequal cost load balancing.
When a range of ports is being configured for EtherChannel, which mode will configure LACP on a port only if the port receives LACP packets from another device?
active
auto
desirable
passive
passive
What protocol is used by EIGRP for the delivery and receipt of EIGRP packets?
RTP
TCP
UDP
ICMP
RTP
What is a characteristic of spanning tree?
It is enabled by default on Cisco switches.
It has a TTL mechanism that works at Layer 2.
It prevents propagation of Layer 2 broadcast frames.
It is used to discover information about an adjacent Cisco device.
It is enabled by default on Cisco switches.
Which protocol does EIGRP use for the transportation of EIGRP packets?
User Datagram Protocol
Reliable Transport Protocol
Real-Time Transport Protocol
Transmission Control Protocol
Reliable Transport Protocol
What is a function of OSPF hello packets?
to send specifically requested link-state records
to discover neighbors and build adjacencies between them
to ensure database synchronization between routers
to request specific link-state records from neighbor routers
to discover neighbors and build adjacencies between them
What routing protocol can be configured to load balance across paths with unequal metrics through the use of the variance command?
EIGRP
OSPF
OSPFv3
RIPng
EIGRP
What are two features of a link-state routing protocol? (Choose two.)
Routers send periodic updates only to neighboring routers.
Routers send triggered updates in response to a change.
Routers create a topology of the network by using information from other routers.
The database information for each router is obtained from the same source.
Paths are chosen based on the lowest number of hops to the designated router.
Routers send triggered updates in response to a change.
Routers create a topology of the network by using information from other routers.
A router is participating in an OSPFv2 domain. What will always happen if the dead interval expires before the router receives a hello packet from an adjacent DROTHER OSPF router?
OSPF will run a new DR/BDR election.
SPF will run and determine which neighbor router is “down”.
A new dead interval timer of 4 times the hello interval will start.
OSPF will remove that neighbor from the router link-state database.
OSPF will remove that neighbor from the router link-state database.
In an OSPFv2 configuration, what is the effect of entering the command network 192.168.1.1 0.0.0.0 area 0?
It changes the router ID of the router to 192.168.1.1.
It enables OSPF on all interfaces on the router.
It tells the router which interface to turn on for the OSPF routing process.
It allows all 192.168.1.0 networks to be advertised.
It tells the router which interface to turn on for the OSPF routing process.
What does the cost of an OSPF link indicate?
A higher cost for an OSPF link indicates a faster path to the destination.
Link cost indicates a proportion of the accumulated value of the route to the destination.
Cost equals bandwidth.
A lower cost indicates a better path to the destination than a higher cost does.
A lower cost indicates a better path to the destination than a higher cost does.
hich two channel group modes would place an interface in a negotiating state using PAgP? (Choose two.)
on
desirable
active
auto
passive
desirable
auto
Which statement describes the autonomous system number used in EIGRP configuration on a Cisco router?
It carries the geographical information of the organization.
It functions as a process ID in the operation of the router.
It is a globally unique autonomous system number that is assigned by IANA.
It identifies the ISP that provides the connection to network of the organization.
It functions as a process ID in the operation of the router.
A set of switches is being connected in a LAN topology. Which STP bridge priority value will make it least likely for the switch to be selected as the root?
4096
32768
61440
65535
61440
Which two statements are correct about EIGRP acknowledgment packets? (Choose two.)
The packets are sent in response to hello packets.
The packets are used to discover neighbors that are connected on an interface.
The packets are sent as unicast.
The packets require confirmation.
The packets are unreliable.
The packets are sent as unicast.
The packets are unreliable.
What is the final operational state that will form between an OSPF DR and a DROTHER once the routers reach convergence?
full
two-way
loading
established
full
Which two addresses represent valid destination addresses for an OSPFv3 message? (Choose two.)
FF02::5
224.0.0.5
FF02::A
FE80::42
2001:db8:acad:1::1
FF02::5
FE80::42
What information is contained in OSPF type 3 LSAs?
networks reachable in other areas
networks learned from other routing protocols
the router ID of the DR to all routers in the area
the router ID of an ASBR and the route to reach it
networks reachable in other areas
What is the function of STP in a scalable network?
It decreases the size of the failure domain to contain the impact of failures.
It protects the edge of the enterprise network from malicious activity.
It disables redundant paths to eliminate Layer 2 loops.
It combines multiple switch trunk links to act as one logical link for increased bandwidth.
It disables redundant paths to eliminate Layer 2 loops.
In the Cisco hierarchical design model, which layer is more likely to have a fixed configuration switch than the other layers?
distribution
transport
internet
access
core
access
A network engineer is interested in obtaining specific information relevant to the operation of both distribution and access layer Cisco devices. Which command provides common information relevant to both types of devices?
show ip protocols
show ip interface
show cdp neighbors
show port-security
show mac-address-table
show cdp neighbors
A network administrator is analyzing the features that are supported by different first-hop router redundancy protocols. Which statement is a feature that is associated with GLBP?
GLBP allows load balancing between routers.
It is nonproprietary.
It uses a virtual router master.
It works together with VRRP.
GLBP allows load balancing between routers.
How is bandwidth to a destination network calculated by EIGRP?
the lowest configured bandwidth of any interface along the route
the sum of the configured bandwidths of all interfaces along the path
the highest configured bandwidth of any interface along the path
the bandwidth of the ingress interface of the last hop router
the lowest configured bandwidth of any interface along the route
Which statement is true about the states of the IEEE 802.1D Spanning Tree Protocol?
Ports are manually configured to be in the forwarding state.
Ports listen and learn before going into the forwarding state.
Ports must be blocked before they can be placed in the disabled state.
It takes 15 seconds for a port to go from blocking to forwarding.
Ports listen and learn before going into the forwarding state.
What EIGRP packet type is used by EIGRP routers to discover neighbors on directly connected links?
hello
query
update
acknowledgment
hello
A router needs to be configured to route within OSPF Area 0. Which two commands are required to accomplish this? (Choose two.)
RouterA(config)# router ospf 0
RouterA(config)# router ospf 1
RouterA(config-router)# network 192.168.2.0 0.0.0.255 0
RouterA(config-router)# network 192.168.2.0 0.0.0.255 area 0
RouterA(config-router)# network 192.168.2.0 255.255.255.0 0
RouterA(config)# router ospf 1
RouterA(config-router)# network 192.168.2.0 0.0.0.255 area 0
A switched network has converged completely. All switches currently have a VTP revision number of 5. A new switch that has been configured as a VTP server is added to the network. The new switch has a VTP revision number of 4. What will occur within the network?
The network will no longer share VLAN database updates.
The newly added switch will automatically switch to VTP client mode.
The VTP databases will remain unchanged in all switches with the exception of the newly added switch.
All switches in the network will update their VTP database to reflect the VTP database of the new switch.
The VTP databases will remain unchanged in all switches with the exception of the newly added switch.
What are three characteristics of VTP? (Choose three.)
In the default VTP mode, VLANs can be created, modified, and deleted on the switch.
Switches in VTP server mode store VLANs in the vlan.dat database.
A switch in transparent mode with a higher configuration revision number than the existing VTP server updates all VLAN information throughout the VTP domain.
To reset a configuration revision number, the switch configuration must be saved and the switch reloaded.
VTP updates are exchanged across trunk links only.
In the default VTP mode, VLANs can be created, modified, and deleted on the switch.
VTP updates are exchanged across trunk links only.
Switches in VTP server mode store VLANs in the vlan.dat database.
A network administrator is planning to add a new switch to the network. What should the network administrator do to ensure the new switch exchanges VTP information with the other switches in the VTP domain?
Configure the correct VTP domain name and password on the new switch.
Associate all ports of the new switch to a VLAN that is not VLAN 1.
Configure the VLANs on the new switch.
Configure all ports on the new switch to access mode.
Configure the correct VTP domain name and password on the new switch.
A network administrator is adding a new VLAN for testing. The company uses VTP and the VLAN is not directly attached to either of the switches configured as VTP servers. What is the best method to add this VLAN to the network?
Change the switch that has connected hosts in the new VLAN to be in VTP server mode.
Configure a port on the VTP servers for the same VLAN as the new VLAN.
Manually add the VLAN to the VLAN database of the VTP servers.
Configure interfaces on the switch that has connected hosts in the new VLAN and reboot the switch.
Manually add the VLAN to the VLAN database of the VTP servers.
What are two drawbacks to turning spanning tree off and having multiple paths through the Layer 2 switch network? (Choose two.)
The switch acts like a hub.
Port security becomes unstable.
The MAC address table becomes unstable.
Broadcast frames are transmitted indefinitely.
Port security shuts down all of the ports that have attached devices.
Broadcast frames are transmitted indefinitely
The MAC address table becomes unstable.
A new chief information officer (CIO) has requested implementation of a link-state dynamic routing protocol. Which two routing protocols fulfill this requirement? (Choose two.)
RIPv2
BGP
OSPF
IS-IS
EIGRP
OSPF
IS-IS
An EIGRP router loses the route to a network. Its topology table contains two feasible successors to the same network. What action will the router take?
The DUAL algorithm is recomputed to find an alternate route.
The router uses the default route.
The best alternative backup route is immediately inserted into the routing table.
The router will query neighbors for an alternate route.
The best alternative backup route is immediately inserted into the routing table.
When the show spanning-tree vlan 33 command is issued on a switch, three ports are shown in the forwarding state. In which two port roles could these interfaces function while in the forwarding state? (Choose two.)
disabled
designated
root
alternate
blocked
designated
root
Which statement describes the autonomous system number used in EIGRP configuration on a Cisco router?
It carries the geographical information of the organization.
It functions as a process ID in the operation of the router.
It is a globally unique autonomous system number that is assigned by IANA.
It identifies the ISP that provides the connection to network of the organization.
It functions as a process ID in the operation of the router.
How is the router ID for an OSPFv3 router determined?
the highest IPv6 address on an active interface
the lowest MAC address on an active interface
the highest IPv4 address on an active interface
the highest EUI-64 ID on an active interface
the highest IPv4 address on an active interface
Which command would limit the amount of bandwidth that is used by EIGRP for protocol control traffic to approximately 128 Kb/s on a 1.544 Mb/s link?
ip bandwidth-percent eigrp 100 8
maximum-paths 8
variance 8
traffic-share balanced
ip bandwidth-percent eigrp 100 8
Which criterion is preferred by the router to choose a router ID?
the IP address of the highest configured loopback interface on the router
the IP address of the highest active interface on the router
the router-id rid command
the IP address of the highest active OSPF-enabled interface
the router-id rid command
What is the effect of entering the network 192.168.10.1 0.0.0.0 area 0 command in router configuration mode?
The interface with the IPv4 address 192.168.10.1 will be a passive interface.
OSPF advertisements will include the network on the interface with the IPv4 address 192.168.10.1.
This command will have no effect because it uses a quad zero wildcard mask.
OSPF advertisements will include the specific IPv4 address 192.168.10.1.
OSPF advertisements will include the network on the interface with the IPv4 address 192.168.10.1.
Which three requirements are necessary for two OSPFv2 routers to form an adjacency? (Choose three.)
The two routers must include the inter-router link network in an OSPFv2 network command.
The OSPFv2 process is enabled on the interface by entering the ospf process area-id command.
The OSPF hello or dead timers on each router must match.
The OSPFv2 process ID must be the same on each router.
The link interface subnet masks must match.
The link interface on each router must be configured with a link-local address.
The two routers must include the inter-router link network in an OSPFv2 network command.
The OSPF hello or dead timers on each router must match.
The link interface subnet masks must match.
When does an OSPF router become an ABR?
when the router has interfaces in different areas
when the router is configured as an ABR by the network administrator
when the router has the highest router ID
when the router has an OSPF priority of 0
when the router has interfaces in different areas
Which type of OSPF router connects an OSPF area to non-OSPF routing domains?
ABR
ASBR
DR
backbone router
ASBR
Which function is performed by an OSPF ABR?
flooding type 2 LSAs within an area
originating type 5 LSAs into an area
injecting type 3 LSAs into an area
advertising the router ID of any designated routers within an area
injecting type 3 LSAs into an area
Which is a characteristic of EtherChannel?
EtherChannel uses physical ports that have been upgraded to provide a faster connection.
STP will not block redundant EtherChannel bundles between two switches.
STP treats all interfaces in a bundle as a single logical link.
EtherChannel configuration is applied to each physical port.
STP treats all interfaces in a bundle as a single logical link.
What two values must match between two EIGRP directly connected neighbors to establish and maintain an adjacency? (Choose two.)
metric parameters
autonomous system number
router ID
Area ID
hello timers
metric parameters
autonomous system number
What does an OSPF area contain?
routers that share the same router ID
routers whose SPF trees are identical
routers that have the same link-state information in their LSDBs
routers that share the same process ID
routers that have the same link-state information in their LSDBs
What type of OSPF IPv4 route is indicated by a route table entry descriptor of O E1?
a summary route that is advertised by an ABR
an intra-area route that is advertised by the DR
an external route that is advertised by an ASBR
a directly connected route that is associated with an Ethernet interface
an external route that is advertised by an ASBR
In which mode is the area area-id range address mask command issued when multiarea OSPF summarization is being configured?
global configuration mode
router configuration mode
interface configuration mode of area 0 interfaces
interface configuration mode of all participating interfaces
router configuration mode
After implementing an IPv6 network, the administrator notices that the OSPFv3 process is not starting on the routers. What could be the problem?
The routers are configured with the default priority.
Authentication was not implemented between the routers.
No router IDs are configured on the routers.
The routers were not configured with the network command.
No router IDs are configured on the routers.
Which command can be used to view OSPF adjacencies with neighboring routers along with the transition state?
show ip protocols
show ip ospf neighbor
show ip ospf interface
show running-config
show ip ospf neighbor
Which technological factor determines the impact of a failure domain?
the number of layers of the hierarchical network
the number of users on the access layer
the role of the malfunctioning device
the forwarding rate of the switches used on the access layer
the role of the malfunctioning device.
What is the function of STP in a scalable network?
It decreases the size of the failure domain to contain the impact of failures.
It protects the edge of the enterprise network from malicious activity.
It disables redundant paths to eliminate Layer 2 loops.
It combines multiple switch trunk links to act as one logical link for increased bandwidth.
It disables redundant paths to eliminate Layer 2 loops.
Which characteristic would most influence a network design engineer to select a multilayer switch over a Layer 2 switch?
ability to build a routing table
ability to aggregate multiple ports for maximum data throughput
ability to provide power to directly-attached devices and the switch itself
ability to have multiple forwarding paths through the switched network based on VLAN number(s)
ability to build a routing table
A network administrator has configured an EtherChannel between two switches that are connected via four trunk links. If the physical interface for one of the trunk links changes to a down state, what happens to the EtherChannel?
The EtherChannel will transition to a down state.
Spanning Tree Protocol will recalculate the remaining trunk links.
The EtherChannel will remain functional.
Spanning Tree Protocol will transition the failed physical interface into forwarding mode.
The EtherChannel will remain functional.
Which command is used to display the bandwidth of an interface on an EIGRP-enabled router?
show ip route
show interfaces
show ip protocols
show ip interface brief
show interfaces
What are the only two roles that permit an OSPF router to be configured for summarization? (Choose two.)
backbone router
internal router
designated router
area border router
autonomous system boundary router
area border router
autonomous system boundary router
Which routing table descriptor is used to identify the OSPF networks advertised by type 1 LSAs?
O E2
O E1
O IA
O
O
What are two features of OSPF interarea route summarization? (Choose two.)
ASBRs perform all OSPF summarization.
Routes within an area are summarized by the ABR.
ABRs advertise the summarized routes into the backbone.
Type 3 and type 5 LSAs are used to propagate summarized routes by default.
Route summarization results in high network traffic and router overhead.
Routes within an area are summarized by the ABR.
ABRs advertise the summarized routes into the backbone.
What is one reason to use the ip ospf priority command when the OSPF routing protocol is in use?
to activate the OSPF neighboring process
to influence the DR/BDR election process
to provide a backdoor for connectivity during the convergence process
to streamline and speed up the convergence process
to influence the DR/BDR election process
Which statement describes a characteristic of OSPF external routes?
The difference between type 1 and type 2 is in the way the cost of the route is being calculated.
Type 1 and type 2 external routes in IPv4 networks are represented in the routing table by EX1 and EX2, respectively.
A type 2 route is always preferred over a type 1 route for the same destination.
The cost of a type 1 route is always the external cost, regardless of the interior cost to reach that route.
The difference between type 1 and type 2 is in the way the cost of the route is being calculated.
Which command can be used by an administrator to display a list of interfaces that are enabled for OSPFv3?
show ipv6 ospf
show ipv6 neighbor
show ipv6 route ospf
show ipv6 protocols
show ipv6 protocols