1. What actions will occur after RouterA loses connectivity
to network 114.125.16.0? (Choose two.)
RouterB will include network 123.92.76.0 and 136.125.85.0 in
its update to RouterA.
Router C will learn of the loss of connectivity to network
114.125.16.0 from RouterB.
2. What does a router running RIP do first with a new route
that is received from an advertisement?
adjusts the metric for the new route to show the added
distance for the route
3. Refer to the exhibit. If all routers are using RIP, how
many rounds of updates will occur before all routers know all networks?
3
4. Which of the following methods does split horizon use to
reduce incorrect routing information?
Information learned from one source is not distributed back
to that source.
5. Refer to the exhibit. The routers in this network are
running RIP. Router A has not received an update from Router B in over three
minutes. How will Router A respond?
The Invalid timer will mark the route as unusable if an
update has not been received in 180 seconds.
6. The graphic shows a network that is configured to use RIP
routing protocol. Router2 detects that the link to Router1 has gone down. It
then advertises the network for this link with a hop count metric of 16. Which
routing loop prevention mechanism is in effect?
route poisoning
7. Which two statements describe EIGRP? (Choose two.)
EIGRP sends triggered updates whenever there is a change in
topology that influences the routing information.
EIGRP sends a partial routing table update, which includes
just routes that have been changed.
8. Which event will cause a triggered update?
a route is installed in the routing table
9. Which of the following statements are correct about RIP?
will send out an update if there is a failure of a link
10. Which two statements are true regarding the function of
the RIPv1 routing updates? (Choose two).
updates are broadcast at regular intervals
broadcasts are sent to 255.255.255.255
11. A network administrator is evaluating RIP versus EIGRP
for a new network. The network will be sensitive to congestion and must respond
quickly to topology changes. What are two good reasons to choose EIGRP instead
of RIP in this case? (Choose two.)
EIGRP only updates affected neighbors.
EIGRP updates are partial.
12. Which two conditions are most likely to cause a routing
loop? (Choose two.)
inconsistent routing tables
incorrectly configured static routes
13. What metric does the RIP routing protocol consider to be
infinity?
16
14. What does the RIP holddown timer do?
instructs routers to ignore updates, for a specified time or
event, about possible inaccessible routes
15.
Refer to the exhibit. What path will packets from the
192.168.1.0/24 network travel to reach the 10.0.0.0/8 network if RIP is the
active routing protocol?
The path will be router A -> router D -> router E
16. Three routers running a distance-vector routing protocol
lost all power, including the battery backups. When the routers reload, what
will happen?
They will send updates that include only directly connected
routes to their directly connected neighbor
17. What is a routing loop?
a condition where a packet is constantly transmitted within
a series of routers without ever reaching its intended destination
18. Which statement is true regarding cisco’s RIP_JITTER
variable?
It prevents the synchronization of routing updates by
subtracting a random length of time ranging from 0% to 15% of the specified
interval time from the next routing update
19. Which three routing protocols are distance vector
routing protocols? (Choose three).
RIPv1
EIGRP
RIPv2
20. Which of the following can exist in a distance vector
network that has not converged? (Choose three).
routing loops
inconsistent traffic forwarding
inconsistent routing table entries
21. What is the purpose of the TTL field in the IP header?
limits the time or hops that a packet can traverse through
the network before it should be discarded
CCNA 2 Chapter 4 Answers |
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