English FormB CCNA3 Version3.1 Module3 – 2006 fall
1. What is the default administrative distance of EIGRP internal routes?
70
***90
100
110
120
255
2. Which of the following are found in the EIGRP neighbor table? (Choose two.)
routes installed by DUAL
lowest calculated metric to each destination
***network layer address of the neighbor routers
***number of EIGRP packets waiting to be sent
feasible distance to each neighbor
3. In which of the following tables does the EIGRP DUAL algorithm store the primary route to a destination? (Choose two.)
***routing
***topology
neighbor
path
shortest path
4. Why would it be necessary to configure the bandwidth setting on an EIGRP interface rather than leaving it at the default setting? (Choose two.)
***A suboptimal route may be chosen as the best path to a destination if the bandwidth setting is higher than the actual bandwidth of the link.
***The network may be unable to converge if the bandwidth setting does not match the actual bandwidth of the link.
Routing updates might arrive too fast for the interface to handle and be discarded because of buffer overflow.
The configured bandwidth must match the actual speed of the link so the link will operate properly.
Setting the bandwidth to a higher rate will optimize the effective throughput of the link.
5. What information is maintained in the EIGRP topology database for a destination route? (Choose three.)
***the routing protocol
***the feasible distance of the route
the highest cost of the route
the SRTT value for the route
***the route cost as advertised by the neighboring router
the physical address of the gateway interface
6. Which command will display only the current EIGRP routing table entries?
Router# show ip route
***Router# show ip route eigrp
Router# show eigrp route
Router# show eigrp protocol
7. Which of the following router commands is recommended only for troubleshooting specific types of network problems, not for monitoring normal network operation?
show
list
***debug
terminal monitor
8. What tables does EIGRP maintain for each routed protocol it supports? (Choose three.)
adjacency table
***topology table
***neighbor table
***routing table
link state table
ARP table
9. Which of the following statements describes the bounded updates used by EIGRP?
Bounded updates are sent to all routers within an autonomous system.
***Partial updates are sent only to routers that need the information.
The updates are sent to all routers in the routing table.
Updates are bounded by the routers in the topology table.
10. What is the EIGRP term for a backup route?
backup route
default route
***feasible successor route
gateway
secondary route
successor route
11. Which Layer 4 protocol does EIGRP use to provide reliability for the transmission of routing information?
DUAL
IP
PDM
***RTP
TCP
UDP
12. What is the advantage of routers forming adjacencies when using EIGRP? (Choose three.)
Neighbor routers can quickly take over for a router that is in passive mode.
***New routers and their routes can quickly be discovered by neighbor routers.
A router can share routing loads with neighbor routers.
***A router can quickly discover when a neighbor router is no longer available.
***Changes in network topology can quickly be shared with neighbor routers.
Neighbor routers can save overhead by sharing their DUAL databases.
13. Which command will help identify established OSPF neighbor adjacencies?
router# show ospf neighbor
router# debug neighbor events
router# debug ip ospf neighbor
***router# show ip ospf neighbor
14. Which of the following types of routes will be denoted by EX in EIGRP routing table entries? (Choose two.)
***routes learned from other routing protocols
routes learned from any non-adjacent EIGRP routers
any route with a hop count metric higher than 224
***EIGRP routes that originate in different autonomous systems
all passive routes in the routing table
15. Host 192.168.1.66 in the network illustrated is unable to ping host 192.168.1.130. How must EIGRP be configured to enable connectivity between the two hosts? (Choose two.)
R1(config-router)# network 192.168.1.128
R1(config-router)# auto-summary
***R1(config-router)# no auto-summary
***R2(config-router)# no auto-summary
R2(config-router)# auto-summary
R2(config-router)# network 192.168.1.64
16. If an EIGRP route goes down and a feasible successor is not found in the topology table, how does DUAL flag the route that has failed?
recomputed
passive
***active
down
unreachable
successor
17. Which EIGRP command is used to view all routes that are known by the router?
show ip eigrp interfaces detail
show ip eigrp traffic
show ip eigrp neighbors
***show ip eigrp topology all-links
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