Router Basics
Link-State (OSPF)
IGRP & EIGRP
Design
Switch Basics
100
Devices that forward packets based on Layer 3 data.
What is the best description of a router?
100
Lots of details versus no details.
What is the difference between the way link-state routing protocols view the network and the way distance vector routing protocols view the network?
100
The same autonomous system number.
Redistribution, the sharing of routes, is automatic between IGRP and EIGRP as long as both processes use what?
100
Layer 3 uses IP addresses and Layer 2 uses MAC addresses.
What is the difference between Layer 2 and Layer 3 switching?
100
Port is sending/receiving traffic.
What does a flashing green port LED indicate?
200
Default Routes, Static and Dynamic routing.
What are the 3 ways routers can learn paths to destination networks?
200
100000000/bandwidth=COST
What is the formula Cisco IOS uses to calculate the cost metric for OSPF?
200
Bandwidth and Delay
What is the metric used, by default, for both IGRP and EIGRP?
200
More efficient use of IP addresses.
What is one reason you should use VLSM when designing your addressging scheme?
200
Autonegotiate duplex mode
What is the default 100Base-T port setting on a Catalyst 2950?
300
Routers open the packet header to examine the destination IP address.
Why do routers cause more latency than switches?
300
Databases have the same routing information.
What can you safely assume about routers within an OSPF area that have converged?
300
HELLO packets
When the network topology is fully converged what type of packets are sent to neighbors?
300
Network Segmentation
What is 1 LAN design issue you should consider when trying to maximize bandwidth and performance.
300
8 bit field called Time To Live (TTL)
What mechanism does IP have to stop packets from endlessly looping throughout an internetwork?
400
RIPv1 and IGRP
What are 2 classful routing protocols?
400
Runs more efficiently with smaller routing tables.
What is one advantage of OSPF?
400
Manually
How can EIGRP be configured to advertise on arbitrary network boundaries?
400
Whether you need support for Layer 2 or Layer 3 switching.
What factor needs to be considered when choosing whether to use a router or a switch in a particular location in your network?
400
Switch(config)#
What does the prompt change to when you type "configure terminal" on a switch?
500
Router chooses the subnet mask based upon the default mask for the IP address of the network number.
How does a router running a classful routing protocol calculate the network portion of routes received in updates?
500
SPF and Dijkstra Algorithm
What are the 2 names that refer to the same algorithm used by link-state routing protocols?
500
Reliable Transport Protocol
What is EIGRP's own Layer 4 protocol called?
500
Vertical cabling combines data access from multiple segments so you need more bandwidth.
Why does vertical cabling require greater data capacity than horizontal cabling?
500
16, numbered 0 throuth 15
How many telnet lines does a switch have and what are they numbered?
M
e
n
u