默认题库 - CCNP(642-902)

单选题

Router R1 use s MAC address 1111.1111.1111 for its Fa0/0 interface. An engineer sees the following configuration in the output of a show running - config command. Then, the engineer issues a show ipv6 interface brief command. What global unicast IPv6 address does this c ommand display for interface tunnel 1?（） interface loopback 1 ip address 192.168.1.1 255.255.255.255 interface tunnel 1 tunnel source loopback 1 tunnel destination 192.168.1.2 tunnel mode ipv6ip isatap ipv6 address 2000::/64 eui - 64

A. 2000::1311:11F F:FE11:1111
B. 2000::C0A5:101
C. 2000:C0A5:101::
D. 2000::5EFE:C0A5:101

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单选题

Which of the following is the shortest valid abbreviation for FE80:0000:0000:0000:0010:0000:0000:0123?（）

A. FE80::10::123
B. FE8::1::123
C. FE80:0:0:0:10::123
D. FE80::10:0:0:123

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单选题

A router has two paths to reach another network in a different autonomous system. Neither route was generated by the local router and both routes have the same default weight an d local preference values. Which statement is true about how BGP would select the best path?（）

A. To influence one route to be preferred, its default local preference value will be changed via the use of the command bgp default local - preference 50
B. Th e router will prefer the shortest autonomous system path
C. If the command bgp always - compare - med has been given, then the router will prefer the route with the highest MED
D. The router will prefer the route with the lower MED

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单选题

An administrator types in the command router ospf 1 and receives the er ror message: "OSPF process 1 cannot start." (Output is omitted.) What should be done to correctly set up OSPF？（）

A. Ensure that an interface has been configured with an IP address
B. Ensure that IP classless is enabled
C. Ensure that the interfaces can ping their directly connected neighbors
D. Ensure that an interface has been configured with an IP address and is u

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多选题

A router is running BGP and receives more than one route for a particular prefix. Assume all the routes for this prefix have the same attributes. Which three path features would be reasons be for the rou ter to ignore some of the routes and not consider them as candidates for the best path?（）

A. paths from an internal BGP (iBGP) neighbor if the local autonomous system (AS) appears in the AS_PATH
B. paths for which the NEXT_HOP is inaccess ible
C. paths from an external BGP (eBGP) neighbor if the local autonomous system (AS) appears in the AS_PATH
D. paths for which the NEXT_HOP is accessible
E. paths that are marked as synchronized in the show ip bgp output
F. paths that are marked as not synchronized in the show ip bgp output

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多选题

Which three are advantages to creating multiple areas in OSPF? (Choose three.) Select 3 response(s)？（）

A. less frequent SPF calculations
B. fewer hello packets
C. smaller routing tables
D. reduced LSU overhe ad
E. fewer adjacencies needed

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单选题

ABR R1 has been configured with an area 1 stub no - summary command. Which stubby area type is area 1?（）

A. Stub
B. Totally stubby
C. NSSA
D. Totally NSSA

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单选题

What is the default metric used on IS -IS routers for each interface?（）

A. The cost is set to 10 for all interfaces.
B. The cost is set to 10 for LAN interfaces and 20 for WAN interfaces.
C. The cost is based on the speed of the interface.
D. The cost is based o n a composite of bandwidth and delay of the interface.

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单选题

What is periodically sent by a DIS on a LAN to ensure that all adjacent neighbors' IS - IS link - state databases are synchronized?（）

A. complete SNP (CSNP)
B. partial SNP (PSNP)
C. database query
D. database description packet (DDP)
E. link - state summary
F. hello

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单选题

What are the basic configuration steps to enable IS - IS?（）

A. Configure the net system - id command under routerisis and enable IS - IS on each interface with the ip router isis command.
B. Configure the net sy stem - id and the network net - id commands under routerisis.
Configure the network net - id command(s) under routerisis and enable IS - IS on each interface with the ip router isis command.
D. Configure the network net - id command(s) and the is - type level -1- 2 command under routerisis.
E. Configure the net system - id and the network net - id commands under routerisis and enable ISIS on each interface with the ip router isis command.

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