Chabot College
• Chapter 5 – Routing Protocols: IGRP
Review Questions
Semester III
ELEC 99.09
6. After a router determines which path to
use for a packet, it can then proceed with
which of the following?
• A. A broadcast
• B. Storing the packet in a routing table
• C. Choosing a routing protocol
• D. Switching the packet
7. The success of dynamic routing
depends on which of the following?
• A. Manually entering routes
• B. Maintaining a routing table
• C. Periodic routing updates
• D. B and C
8. ________ routing protocols determine
the direction and distance to any link in
the internetwork; ________ routing
protocols are also called the shortest path
first
• A. Distance-vector; link-status
• B. Distance-vector; hybrid
• C. Link-state; distance-vector
• D. Dynamic; static
9. Which of the following is not a variable
IGRP uses to determine a composite
metric?
• A. Bandwidth
• B. Delay
• C. Load
• D. IGRP uses all of these
10. To select IGRP as a routing protocol,
which command do you use?
• A. show igrp
• B. router network igrp
• C. enable igrp
• D. router igrp
11. IGRP is a _________ based protocol
• A. Time
• B. Cost
• C. Distance-vector
• D. Link-state
12. What is one advantage of dynamic
routing?
• A. Takes little network overhead and
reduces network traffic
• B. Reduces unauthorized break-ins because
security is tight
• C. Adjusts automatically to topology or traffic
changes
• D. Requires little bandwidth to operate
efficiently
13. IGRP does not use which of the
following as part of the metric?
• A. Bandwidth
• B. Delay
• C. Load
• D. Hop count
14. Which one of the following
configuration commands should be
configured to broadcast the network
10.1.1.0/24 using IGRP?
• A. RouterA# network 10.1.1.0
• B. RouterA(config-router)# network 10.1.1.0
• C. RouterA(config)# network 10.0.0.0
• D. RouterA(config-router)# network 10.0.0.0
15. To enable IGRP routing protocol, you
must type “router igrp”
• A. True
• B. False
16. What is a valid metric for IGRP?
• A. Reliability
• B. Hop count
• C. MTU
• D. Both A and C
17. For routers to communicate IGRP
without redistribution, they must be in the
same ____________
• A. Autonomous system
• B. Interior gateway
• C. Exterior gateway
• D. Domain
18. Which of the following are true of
administrative distance?
• A. Measures the distance to a destination
network
• B. Only applies to IGRP and EIGRP
• C. Measures the “reliability” of an IP routing
protocol
• D. The higher the value, the more important
the routing information
19. What is the default route on an IP
network?
• A. This is the route that will be chosen first
by IP for delivery of a datagram
• B. The address of the nearest downstream
neighbor in a Token Ring network
• C. At the router, it is a route manually
defined as the path to take when no route to
the destination is known
• D. Any dynamic route listing in a routing
table
20. Which of the following sends a routing
update with a metric of infinity?
• A. Split horizon rule
• B. Poison reverse
• C. Holddown
21. Which of the following prevents
advertising a route back to the direction it
came?
• A. Split horizon rule
• B. Poison reverse
• C. Holddown