Transcript 20088-2 CCNA3 3.1-03 Questions EIGRP

Cisco 3 - Switch
Chapter 3
Which of the following are found in the EIGRP neighbor table?
(Choose two.)
Perrine. J
1.
routes installed by DUAL
2.
lowest calculated metric to each destination
3.
network layer address of the neighbor routers
4.
number of EIGRP packets waiting to be sent
5.
feasible distance to each neighbor
3/28/2016
Page 1
Cisco 3 - Switch
Chapter 3
Which of the following are found in the EIGRP neighbor table?
(Choose two.)
Perrine. J
1.
routes installed by DUAL
2.
lowest calculated metric to each destination
3.
network layer address of the neighbor routers
4.
number of EIGRP packets waiting to be sent
5.
feasible distance to each neighbor
3/28/2016
Page 2
Cisco 3 - Switch
Chapter 3
Which statement best describes IGRP and EIGRP characteristics?
Perrine. J
1.
IGRP imposes a maximum hop count of 224, slightly less than
EIGRP’s 255.
2.
IGRP reduces EIGRP’s metric by a factor 256.
3.
IGRP tags routes learned from EIGRP as external because they
did not originate from IGRP routers.
4.
IGRP and EIGRP are incompatible with each other because of
different metric components.
3/28/2016
Page 3
Cisco 3 - Switch
Chapter 3
Which statement best describes IGRP and EIGRP characteristics?
Perrine. J
1.
IGRP imposes a maximum hop count of 224, slightly less than
EIGRP’s 255.
2.
IGRP reduces EIGRP’s metric by a factor 256.
3.
IGRP tags routes learned from EIGRP as external because they
did not originate from IGRP routers.
4.
IGRP and EIGRP are incompatible with each other because of
different metric components.
3/28/2016
Page 4
Cisco 3 - Switch
Chapter 3
Why would it be necessary to configure the bandwidth setting on an EIGRP
interface rather than leaving it at the default setting? (Choose two.)
Perrine. J
1.
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.
2.
The network may be unable to converge if the bandwidth setting does
not match the actual bandwidth of the link.
3.
Routing updates might arrive too fast for the interface to handle and be
discarded because of buffer overflow.
4.
The configured bandwidth must match the actual speed of the link so
the link will operate properly.
5.
Setting the bandwidth to a higher rate will optimize the effective
throughput of the link.
3/28/2016
Page 5
Cisco 3 - Switch
Chapter 3
Why would it be necessary to configure the bandwidth setting on an EIGRP
interface rather than leaving it at the default setting? (Choose two.)
Perrine. J
1.
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.
2.
The network may be unable to converge if the bandwidth setting
does not match the actual bandwidth of the link.
3.
Routing updates might arrive too fast for the interface to handle and be
discarded because of buffer overflow.
4.
The configured bandwidth must match the actual speed of the link so
the link will operate properly.
5.
Setting the bandwidth to a higher rate will optimize the effective
throughput of the link.
3/28/2016
Page 6
Cisco 3 - Switch
Chapter 3
What information is maintained in the EIGRP topology database for a destination
route? (Choose three.)
Perrine. J
1.
the routing protocol
2.
the feasible distance of the route
3.
the highest cost of the route
4.
the SRTT value for the route
5.
the route cost as advertised by the neighboring router
6.
the physical address of the gateway interface
3/28/2016
Page 7
Cisco 3 - Switch
Chapter 3
What information is maintained in the EIGRP topology database for a destination
route? (Choose three.)
Perrine. J
1.
the routing protocol
2.
the feasible distance of the route
3.
the highest cost of the route
4.
the SRTT value for the route
5.
the route cost as advertised by the neighboring router
6.
the physical address of the gateway interface
3/28/2016
Page 8
Cisco 3 - Switch
Chapter 3
Which of the following router commands is recommended only for
troubleshooting specific types of network problems, not for monitoring normal
network operation?
Perrine. J
1.
show
2.
list
3.
debug
4.
terminal monitor
3/28/2016
Page 9
Cisco 3 - Switch
Chapter 3
Which of the following router commands is recommended only for
troubleshooting specific types of network problems, not for monitoring normal
network operation?
Perrine. J
1.
show
2.
list
3.
debug
4.
terminal monitor
3/28/2016
Page 10
Cisco 3 - Switch
Chapter 3
Two routers are directly connected by a serial link and configured as follows:
RTB(config)#router igrp 2446
RTB(config-router)#network 192.168.1.0
RTA(config)#router eigrp 2446
RTA(config-router)#network 10.0.0.0
RTA(config-router)#network 172.16.0.0
Which route would exist in RTA’s main routing table?
1.
2.
3.
4.
Perrine. J
I 172.16.1.0 [170/2681856] via 10.1.1.1, 00:00:04, Serial0
D EX 192.168.10.0 [170/2681856] via 10.1.1.1, 00:00:04, Serial0
E 10.1.1.0 is directly connected, Serial0
D 192.168.10.0 [170/2681856] via 10.1.1.1, 00:00:04, Serial0
3/28/2016
Page 11
Cisco 3 - Switch
Chapter 3
Two routers are directly connected by a serial link and configured as follows:
RTB(config)#router igrp 2446
RTB(config-router)#network 192.168.1.0
RTA(config)#router eigrp 2446
RTA(config-router)#network 10.0.0.0
RTA(config-router)#network 172.16.0.0
Which route would exist in RTA’s main routing table?
1.
2.
3.
4.
Perrine. J
I 172.16.1.0 [170/2681856] via 10.1.1.1, 00:00:04, Serial0
D EX 192.168.10.0 [170/2681856] via 10.1.1.1, 00:00:04, Serial0
E 10.1.1.0 is directly connected, Serial0
D 192.168.10.0 [170/2681856] via 10.1.1.1, 00:00:04, Serial0
3/28/2016
Page 12
Cisco 3 - Switch
Chapter 3
A LAN has been found to be unreachable in an enterprise network that is routing
IGRP. Which commands can be used to check the IGRP configuration of the
router attached to the unreachable network? (Choose three.)
Perrine. J
1.
router# debug igrp
2.
router# show ip route
3.
router# show protocols
4.
router# show ip protocols
5.
router# show interfaces serial
6.
router# show running-configuration
3/28/2016
Page 13
Cisco 3 - Switch
Chapter 3
A LAN has been found to be unreachable in an enterprise network that is routing
IGRP. Which commands can be used to check the IGRP configuration of the
router attached to the unreachable network? (Choose three.)
Perrine. J
1.
router# debug igrp
2.
router# show ip route
3.
router# show protocols
4.
router# show ip protocols
5.
router# show interfaces serial
6.
router# show running-configuration
3/28/2016
Page 14
Cisco 3 - Switch
Chapter 3
A technician has accidentally disconnected an Ethernet cable from a router to a
network that is advertised by IGRP. IGRP has issued a triggered update
alerting other routers in the enterprise that the network is unreachable. What is
the minimum amount of time that will elapse before the other routers will be
able to use this network after it is reconnected, assuming default timer
settings?
Perrine. J
1.
200 seconds
2.
240 seconds
3.
280 seconds
4.
320 seconds
3/28/2016
Page 15
Cisco 3 - Switch
Chapter 3
A technician has accidentally disconnected an Ethernet cable from a router to a
network that is advertised by IGRP. IGRP has issued a triggered update
alerting other routers in the enterprise that the network is unreachable. What is
the minimum amount of time that will elapse before the other routers will be
able to use this network after it is reconnected, assuming default timer
settings?
Perrine. J
1.
200 seconds
2.
240 seconds
3.
280 seconds
4.
320 seconds
3/28/2016
Page 16
Cisco 3 - Switch
Chapter 3
Which of the following statements are true of routers that are running EIGRP?
(Choose three.)
Perrine. J
1.
They can support multiple routed protocols.
2.
They maintain a complex topology database that describes the entire
network.
3.
They send their entire routing table to neighboring routers.
4.
They send partial routing updates in response to topology changes.
5.
They send routing updates to all other routers in the network.
6.
They use hello packets to inform neighboring routers of their status.
3/28/2016
Page 17
Cisco 3 - Switch
Chapter 3
Which of the following statements are true of routers that are running EIGRP?
(Choose three.)
Perrine. J
1.
They can support multiple routed protocols.
2.
They maintain a complex topology database that describes the entire
network.
3.
They send their entire routing table to neighboring routers.
4.
They send partial routing updates in response to topology
changes.
5.
They send routing updates to all other routers in the network.
6.
They use hello packets to inform neighboring routers of their
status.
3/28/2016
Page 18
Cisco 3 - Switch
Chapter 3
What is the advantage of routers forming adjacencies when using EIGRP?
(Choose three.)
1.
Neighbor routers can quickly take over for a router that is in passive
mode.
2.
New routers and their routes can quickly be discovered by neighbor
routers.
3.
A router can share routing loads with neighbor routers.
4.
A router can quickly discover when a neighbor router is no longer
available.
5.
Changes in network topology can quickly be shared with neighbor
routers.
6.
Neighbor routers can save overhead by sharing their DUAL
databases
Perrine. J
3/28/2016
Page 19
Cisco 3 - Switch
Chapter 3
What is the advantage of routers forming adjacencies when using EIGRP?
(Choose three.)
1.
Neighbor routers can quickly take over for a router that is in passive
mode.
2.
New routers and their routes can quickly be discovered by
neighbor routers.
3.
A router can share routing loads with neighbor routers.
4.
A router can quickly discover when a neighbor router is no
longer available.
5.
Changes in network topology can quickly be shared with
neighbor routers.
6.
Neighbor routers can save overhead by sharing their DUAL
databases
Perrine. J
3/28/2016
Page 20
Cisco 3 - Switch
Chapter 3
On higher-bandwidth connections, such as point-to-point serial links and
multipoint circuits, how long is the hello interval that EIGRP uses?
Perrine. J
1.
5 seconds
2.
10 seconds
3.
60 seconds
4.
120 seconds
3/28/2016
Page 21
Cisco 3 - Switch
Chapter 3
On higher-bandwidth connections, such as point-to-point serial links and
multipoint circuits, how long is the hello interval that EIGRP uses?
Perrine. J
1.
5 seconds
2.
10 seconds
3.
60 seconds
4.
120 seconds
3/28/2016
Page 22