多項(xiàng)選擇題Which two are characteristics of the IS -IS protocol but not OSPF?()

A. forms adjacencies with all neighbors
B. supports demand circuit routing
C. provides routing support for multiple network layer protocols
D. utilizes SPF algorithm
E. provides for network scalability by allowing the network to be separated into areas
F. three layers of hierarchical routing


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1.單項(xiàng)選擇題How is network layer addressing accomplished in the OSI protocol suite?()

A. Internet Protocol address
B. Media Access Control address
C. Packet Layer Proto col address
D. Network Service Access Point address
E. Authority and Format Identifier address

2.單項(xiàng)選擇題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.

3.單項(xiàng)選擇題Which packet type is used to ackno wledge LSPs on point - to - point links and to request missing pieces of information in the IS - IS link -state database?()

A. complete SNP (CSNP)
B. partial SNP (PSNP)
C. hello
D. database query
E. database description packet (DDP)

4.單項(xiàng)選擇題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

5.單項(xiàng)選擇題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.
C. 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.

6.單項(xiàng)選擇題In reference to the P1R3 show isis route output, which statement is true? ()

A. P1R1 is the exi t point out of the area for P1R3.
B. P1R1 is a level - 1 only IS - IS router.
C. P1R1 has been configured with a nondefault IS - IS metric.
D. P1R3 is a level - 2 only IS - IS router.
E. P1R3has been configured with a nondefault IS - IS metric.
F. P1R3 routing ta ble should contain i L2 entries.

7.單項(xiàng)選擇題

What will happen after redistributing other routing protocol routes into OSPF? ()

A. miss the metric option in the redistribute command.
B. misconfigure the metric- type option in t he redistribute command to type - 1.
C. miss the subnet option in the redistribute command.
D. miss the tag option in the redistribute command.

8.單項(xiàng)選擇題

Based on the show ip route isis output on R1, which statement is true? ()

A. The i su 10.1.0.0/23 route is a suppressed route.
B. The i su 10.1. 0.0/23 route is a summary route.
C. The i su 10.1.0.0/23 route is an IS - IS external route.
D. The R1 IS - IS router is an ASBR.
E. The R1 IS - IS router is an ABR that belongs to multiple IS - IS areas.
F. The R1 IS - IS router is performing route aggregation  and is suppressing the more specific 10.1.0.0/23 prefix.

9.單項(xiàng)選擇題

Given the network diagram, which routers currently make up the IS - IS  backbone?()

A. R3,R4,R6
B. R2,R3,R6,R7
C. R1 through R8
D. R3,R4,R5,R6
E. R2,R3,R4,R6,R7

10.多項(xiàng)選擇題IS - IS is often considered an alternative to OSPF in the IP world. Which two statements identify similarities between IS -IS and OSPF?()

A. support for designated intermediate systems and backup designated intermediate systems
B. support for multip le areas per router
C. support for classless routing
D. support for address summarization between areas
E. support for both DIS adjacencies and neighbor adjacencies

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The answers each list a tunnel method and two consecutive IPv6 address quartets.Which answers identify a tunneling method that relies on an IPv4 address to be embedded into an IPv6 address, within the correct quartets listed?()

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Which of the following is helpful to allow an IPv6 host to learn the IP address of a default gateway on its subnet?()

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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 1ip address 192.168.1.1 255.255.255.255interface tunnel 1tunnel source loopback 1tunnel destination 192.168.1.2tunnel mode ipv6ip isatapipv6 address 2000::/64 eui - 64

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A client host uses IPv4 to communicate with one ser ver and IPv6 to communicate with another.Which of the following IPv6 coexistence features is likely at work on the host?()

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The following output occurs on Router R1 , which runs both EIGRP for IPv6 and OSPFv3, with redistribution from EIGRP into OSPF configured with the redistribute eigrp 1 metric 25 command. Interface S0/0/1 has been enabled for EIGRP ASN 1. Which of the following should be true of redistribution in  this case?()D 2000::/64 [90/1422516]via FE80::213:19FF:FE7B:5026, Serial0/0/1C 2000:0:0:1::/64 [0/0]via Serial0/0/1, directly connectedL 2000::1:213:19FF:FE7B:5004/128 [0/0]via Serial0/0/1, receive

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

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Router R1 has been conf igured with an ipv6 route 2000::/64 S0/0/0 64 command.Which of the following does the 64 at the end of the command represent?()

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