單項(xiàng)選擇題

Refer to the exhibit diagram and configuration. RTB is summarizing its networks from AS 64100with the aggregate-address command. However, the show ip route command on RTA reveals theRTB individual networks as well as its summary route. Which option would ensure that only thesummary route would appear in the routing table of RTA?()

A.Add a static route with a prefix of 192.168.24.0 255.255.252.0 pointing to the null0 interface
B.Create a route map permitting only the summary address
C.Delete the four network statements and leave only the aggregate-address statement in theBGP configuration
D.Add the keyword summary-only to the aggregate-address command


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1.多項(xiàng)選擇題What are the two reasons for the appearance of 0.0.0.0 as the next hop for a network when usingthe "show ip bgp" command?()

A.The network was originated via redistribution of an interior gateway protocol into BGP
B.The network was defined by a static route
C.The network was learned via IBGP
D.The network was learned via EBGP
E.The network was originated via a network or aggregate command

3.單項(xiàng)選擇題You are the administrator of a company with BGP connections to multiple ISP’s. How could youconfigure BGP to make it favor one particular ISP for outbound traffic?()

A.Configure weight
B.Enable route reflector
C.Create a distribute list
D.Enable the Longer Autonomous System path option
E.All of the above

4.單項(xiàng)選擇題Router R1 needs to be configured to advertise a specific network. Which of the followingcommands would you use if you wanted to advertise the subnet 154.2.1.0 255.255.255.0 to the EBGP neighbors on your subnet?()

A.Router (config-router)#network 154.2.1.0
B.outer (config-router)#network 164.2.1.0
C.Router (config-router)#network-advertise 154.2.1.0
D.Router (config-router)#network 154.2.1.0 mask 255.255.255.0
E.None of the other alternatives apply

5.單項(xiàng)選擇題

The BGP routing table consists of the following network routes:

What is the correct command to summarize these prefixes into a single summary prefix of192.168.12.0/22 while also allowing for the advertisement of the more specific prefixes?()

A.network 192.168.12.0 mask 255.255.252.0
B.network 192.168.12.0 mask 0.0.3.255
C.network 192.168.12.0
D.aggregate-address 192.168.12.0 255.255.252.0
E.aggregate-address 192.168.12.0 255.255.252.0 summary-only
F.aggregate-address 192.168.12.0 255.255.252.0 as-set

6.單項(xiàng)選擇題Router R-1 is configured for BGP routing as shown below: router bgp 65300network 27.0.0.0neighbor 192.23.1.1 remote-as 65300 From the perspective of router R-1, what kind of router is the router with IP address 192.23.1.1?()

A.A peer router running IBGP
B.A peer router running EBGP
C.A community member running IBGP
D.A peer group member running IBGP
E.A peer group member running EBGP

8.單項(xiàng)選擇題The network consists of a series of routers that are all configured for IBGP. Which one of thefollowing IBGP characteristics is true?()

A.The IBGP routers must always be fully meshed
B.The IBGP routers can be in a different AS
C.The IBGP routers must be directly connected
D.The IBGP routers do not need to be directly connected
E.None of the other alternatives apply are true

10.多項(xiàng)選擇題

Refer to the exhibit. All routers are configured for BGP. EBGP routes received on router R2 showup in the BGP table on routers R1 and R3 but not in their IP routing tables. What would causethis?()

A.EBGP multihop is not configured on routers R1 and R3
B.Routers R1 and R3 do not receive the same routes via an IGP
C.Synchronization in autonomous system 100 is turned is on
D.The BGP routers in autonomous system 100 are not logically fully-meshed
E.Synchronization in autonomous system 100 is turned is off

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