module 5

Subject: module 5 Thu Nov 29, 2007 6:09 pm

CCNP1
Chapter 5

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Which two statements describe the purpose of the EIGRP network command? (Choose two.)

Determines which networks are advertised within an EIGRP update across the network. *
Determines the type of network connection utilized across an interface.
Determines which networks belong to the EIGRP AS on the local router. *
Determines which EIGRP AS the local router is a member of.
Determines which metrics will be utilized to determine the best path.
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When would a router have a feasible successor identified in the topology table?

when a neighboring router that is currently being used for packet forwarding fails
when the feasible distance for the next hop router is less than the advertised distance to a router
when the advertised distance for the next hop router is less than the feasible distance to a router *
when there is no successor listed or identified in the topology table
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Observe the configuration. RTA has two serial links and an Ethernet stub network of 3.1.0.0/16. Which command must the network administrator use to have EIGRP summarize the stub network at the classful boundary?

RTA(config-router)# auto-summary 3.1.0.0 255.255.0.0
RTA(config-router)# IP auto-summary
RTA(config-router)# no auto-summary
The network administrator does not have to issue a command. *
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A network administrator wants to summarize the 192.168.64.0/19 network. Which of the following commands can be used to accomplish this?

Router(config)#router eigrp 101
Router(config-router)#ip summary-address 192.168.64.0 255.255.224.0
Router(config)#interface s0/0
Router(config-if)# ip summary-address 192.168.64.0 255.255.224.0
Router(config)# router eigrp 101
Router(config-router)# ip summary-address eigrp 101 192.168.64.0 255.255.224.0
Router(config)# interface s0/0 *
Router(config-if)#ip summary-address eigrp 101 192.168.64.0 255.255.224.0 *
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What command will display successor routes, feasible successors, and possible routing loops?

show eigrp topology
show ip eigrp successors
show ip eigrp database
show ip eigrp topology *
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Of the five EIGRP parameters, bandwidth, delay, reliability, load, and MTU, which are used by default in determining the best path?

bandwidth, delay, reliability
bandwidth, load, reliability
bandwidth, reliability, delay
bandwidth, delay *
bandwidth, load
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Assuming that EIGRP is enabled on both routers, what must be configured to ensure that Router A will be able to reach the 2.2.2.0/24 network?

Use the command no auto-summary to disable automatic summarization. *
Use the command ip address-summary to ensure that Router A recognizes the 2.2.2.0 network.
EIGRP supports VLSM and will automatically recognize the 2.2.2.0 network.
EIGRP does not support VLSM, therefore cannot be used with discontiguous networks.
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What action does an EIGRP router take to find a feasible successor for a network?

It examines the routing and topology tables for a feasible successor.
It transitions from passive to active state for that network and queries its neighbors. *
It examines the routing and neighbor tables for a feasible successor.
It transitions from active to passive state for that network and queries its neighbors.
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What is the purpose of the eigrp log-neighbor-changes command?

Enables the logging of all EIGRP neighbor changes.
Enables the logging of EIGRP neighbor warning messages.
Enables the logging of EIGPR neighbor adjacency changes. *
Enables the logging of all EIGRP messages to the console.
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Hello packets are used by EIGRP routers to perform which two tasks? (Choose two.)

rediscover routers that were previously unreachable *
maintain a topology table for each configured network protocol
choose the best route to a destination and place the route in the routing table
identify routers that have become either unreachable or inoperable *
send EIGRP packets that contain route tables
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You have configured EIGRP route summarization on a serial interface to summarize routes learned from an ethernet interface. What route will show in the routing table?

A summary route pointing to a Serial0 interface.
A summary route pointing to the Loopback0 interface.
A summary route pointing to an Ethernet interface.
A summary route pointing to the Null0 interface. *
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Which two statements are true about EIGRP successor routes? (Choose two.)

It can be used if the existing route fails.
It is part of a routing loop.
It is a route to a neighboring router that is currently being used for packet forwarding. *
It must have an advertised distance greater than the feasible distance.
It provides the least-cost route to a destination. *
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Which devices will receive EIGRP routing updates?

all routers in an area
only affected routers *
only feasible successors
all adjacent routers
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Given the above output, which statement is true about network 204.100.50.0?

It originated from within the EIGRP AS.
It was redistributed from another routing protocol. *
It is a summary address being propagated out the interface of router RTX.
It is a static route configured on router RTX.
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Given the above topology, which configuration statement for the serial interface on Router C is true?

The bandwidth is configured with the default value.
The bandwidth is configured to 56 on each subinterface.
The bandwidth is configured to 244 on each subinterface.
The bandwidth is configured to 56 on the physical interface. *
The bandwidth is configured to 224 on the physical interface.
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What is the EIGRP default hello interval on low bandwidth links (Less than T1)?

60 seconds *
40 seconds
20 seconds
5 seconds
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Which statement best describes routing of packets to the 10.1.4.0 network as displayed in the graphic of the EIGRP topology table entry?

equal-cost load balancing using interface Serial0 and Ethernet1
unequal-cost load balancing using interface Serial0 and Ethernet1
equal-cost load balancing using interface Serial0 and Ethernet0 *
no load balancing on interface Serial0 and Ethernet1
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Which command displays all entries in the EIGRP topology table?

show ip eigrp topology route
show ip eigrp topology details
show ip eigrp topology all-links *
show ip eigrp topology active
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What is the default administrative distance of EIGRP summary routes?

5 *
90
100
110
120
170
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Which two statements are true based on the information in the diagram? (Choose two.)

The default hold-down timer has been changed on Ethernet 1. *
There are four EIGRP packets waiting to be sent on Ethernet 0.
It takes 12 milliseconds to receive a reply from an EIGRP packet sent to 160.89.80.28. *
No packets have been received on the Ethernet interfaces.
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What is a feasible successor in EIGRP?

a backup route that is kept in the routing table
a backup route that is kept in the topology table *
a backup route that is kept in the neighbor table
a protocol specific route that is kept in the routing table
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Observe the above diagram. How will routes appear in the routing table on RTB for the 12.3.3.0/24 network?

D 12.0.0.0/8
EX 12.0.0.0/8
D 12.3.3.0/24
EX 12.3.3.0/24 *
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By default, how much bandwidth is used by EIGRP to exchange routing information?

10%
25%
50% *
75%
100%
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Refer to the graphic. Router C is the hub router in an EIGRP multipoint WAN. Given the Frame Relay CIR values shown in the graphic, what is the proper interface configuration for Router C's Serial0.1?

bandwidth 56
bandwidth 256
bandwidth 768 *
bandwidth 824
bandwidth cir
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Which method does EIGRP use to easily adapt to new or revised routed protocols?

feature-required modules
network-loadable modules
protocol-dependent modules *
finite-state modules
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Which table does EIGRP use to store all the information it needs to calculate a set of distances and vectors to all reachable destinations?

routing table
neighbor table
topology table
adjacencies table
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When must auto-summarization be disabled?

when utilizing VLSM
when implementing discontinuous networks *
when reaching classful network boundaries
when implementing an NBMA network
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A network administrator notices the above line within the show ip route output of RTA. Given this information, which statement is true?

RTA is configured to manually summarize the 2.1.0.0 network. *
RTA automatically inserted this summary when the command network 2.1.0.0 was entered in router mode.
RTA learned network 2.1.0.0 from another redistributed protocol.
RTA learned this summary route from an EIGRP neighbor.
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