Networking Fundamentals
What requires network devices to be managed using a differnet set of IP addresses?
Out of band
What most likely requires the use of subnet interfaces?
A router with only one available LAN port
A Network admin for a small office is adding a passive IDS to its network swith for the purpose of inspecting network traffic. What shold the admin use?
Port mirroring
What technology is X.509 certificates most commonly associated with?
PKI
Which step of the troubleshooting methodology should the technician take to confirm a theory?
Duplicate the problem
What can support a jumbo frame?
Switch
A network admin is deploying a new switch and wants to make sure that the default priority value was set for a spanning tree. What values would the network admin expect to see?
32768
A network admin wants to configure a backup route in case the primary route fails. A dynamic routing protocol is not installed on the router. What routing feature should the admin choose to accomplish this task?
Administrative distance
A company recieves a cease-and-desist order from its ISP regarding prohibited torrent activity. What should be implemented to comply wiht he cease-and-desist order?
Content filtering
A research facility is expecting to see an exponential increase in global network traffic in the near future. The officesare equipped with 2.5Gbps fiber connections from the ISP, but the facility is currently only utilizing 1Gbpsconnections. What would need to be configurd in order to use the ISP's connection speed?
Link aggregation
What protocol has a default administrative distance value of 90?
EIGRP
A network admin is configuring a wireless network with an ESSID. What is a user benefit of ESSID compared to SSID?
Roaming between access points
A network admin needs to connect to routers in a point-to-point and configuration and conserve IP space. What subnet should the admin use?
/30
A user is unable to navigate to a website because the provided URL is not resolving to the correct IP address. Otherusers are able to navigate to the intended website without issue. What is most likely causing the issue?
Hosts file
A VoIP phone is plugged in to a port but cannot receive calls. What needs to be done on the port to address the issue?
Tat the traffice to voice VLAN
What fiber connector type is most likely to be ued on a network interface card?
LC
A network architect needs to create a wireless field network to provide reliable service to public safety vehicles. What type of network is the best solution?
Mesh
A network admin wants to implement an authentication process for temporay access to an organization's network. What technology would faciliate this process?
Captive portal
Which of the following internal routing protocols is best characterized as having fast convergeance and being loopfree?
OSPF
A network engineer is designing a secure connection link between two sites. The entire datam stream needs to remain confidential. What will achieve this goal?
ESP
What type of network topologies contains a direct connection between every node in the network?
Mesh
A manager is evaluating the environmental design of a data center. What setups should the manager implement if the maximum thermal dissiption is the highest concern?
A hot-cold
A network manage wants to implement a SIEM systems to correlate system events. What protocol should the network manager verify?
NTP
A network administrator wants to implement security zones in the corporate network to control access to onlyindividuals inside of the corporation.
Trusted
An office is experiencing intermittent connection issues. A network engineer identifies that the issue occurswhenever someone uses the fax machine that is connected to a switch. What should the engineer do first to resolve the issue?
Configure a VLAN
An administrator is setting up an SNMP server for use in the enterprise network and needs to create device IDs within a MIB. What describes the function of a MIB?
Definition file for event translation.
Which of the following network devices converts wireless signals to electronic signals?
Access Point
A network administrator notices interference with industrial equipment in the 2.4GHz range. Which of the followingtechnologies would most likely mitigate this issue? (Hint: There's two likely answers)
5GHZ frequency
Non-overlapping channel
What activiity would have groups from differnet departments evaluate the disaster recovery process?
Tabletop exercises
A network administrator configured a router interface as 10.0.0.95 255.255.255.240. The administrator discoversthat the router is not routing packets to a web server with IP 10.0.0.81/28. What could be the best explanation?
The router interface is a broadcast address.
A network administrator is planning to host a company application in the cloud, making the application available for all internal and third party users. What concept describes this arrangement?
Multitenancy
A network administrator deployed wireless networking in the office area. When users visit the outdoor patio and try to download emails with large attachments or stream training videos, they notice buffering issues. What was the most likely cause?
Signal degradation
An administrator is setting up an SNMP server for use in the enterprise network and needs to create device IDs within a MIB. What describes the function of a MIB?
Definition file for event translation
What routing protocol uses an autonomous system number?
BGP
What should be configured so users can authenticate to a wireless network using company credentials?
Radius
What should a network administrator configure when adding OT devices to an organizations architecture?
Network segmentation
What is a characteristic of the application layer?
It relies upon other layers for packet delivery.
What should be used to obtain remote access to a network appliance that has failed to start upproperly?
Out-of-band management
What IP transmission type encrypts all of the transmitted data?
ESP
A network engineer performed a migration to a new mail server. The engineer changed the MX record, verified thechange was accurate, and confirmed the new mail server was reachable via the IP address in the A record.However, users are not receiving email.
Reduce the TTL record prior to the MX record change
A network rack has four servers and four switches with dual power supplies. Only one intelligent PDU is installed inthe rack. What is the reason to add a second PDU?
Power redundancy
A network engineer is setting up a new VoIP network for a customer. The current network is segmented only forcomputers and servers. No additional switch ports can be used in the new network.
Enable 802.1Q
Set up voice VLANs
To reduce costs and increase mobility, a Chief Technology Officer (CTO) wants to adopt cloud services for theorganization and its affiliates. To reduce the impact for users, the CTO wants key services to run from the on-sitedata center and enterprise services to run in the cloud. What deployment model is the best choice for the organization?
Hybrid
What is used to describe the average duration of an outage for a specific service?
MTTR
(Mean Time to Repair all the way)
Early in the morning, an administrator installs a new DHCP server. In the afternoon, some users report they areexperiencing network outages. What is the most likely issue.
The administrator did not provision enough IP addresses
What allows a user to connect to an isolated device on a stand-alone network?
Jump box
What disaster recovery metrics is used to describe the amount of data that is lost since the lastbackup?
RPO
A company is implementing a policy that will not allow employees to bring personal devices to the office andconnect to the wireless network. What is the best way to enforce this policy?
802.1x
A network administrator needs to improve network monitoring. What should the administrator do first?
Establish baseline metrics
A network engineer is troubleshooting an issue with a VoIP network. After performing analysis, the engineer foundthat when users upload large files, voice quality is severely degraded. When no other traffic is on the network, voicequality is fine. What should the engineer do to most likely resolve the issue?
Configure Qos on the router