多項選擇題An etwork administrator has enabled OSPF across an NBMA network and has issued the command ip ospf network nonbroadcast. Given those facts, which two statements are true?()

A. Interfaces will automatically detect and build adjacencies with neighbor routers
B. DR and BDR elections will not occur
C. DR and BDR elections will occur
D. The neighbor command is required to build adjacencies
E. All routers must be configured in a fully meshed topology with all other routers


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1.單項選擇題According to RFC 2328, what is the stateful order in which an OSPF router transitions to a full adjacency with a neighbor router?()

A. Down, Init, 2 - Way, Exstart, Exchange, Loading, and Full
B. Down, Init, 2 - Wa y, Exchange, Exstart, Loading, and Full
C. Down, 2 - Way, Init, Loading, Exstart, Exchange, and Full
D. Down, 2 - Way, Init, Exchange, Exstart, Loading, and Full
E. Down, Init, 2 - Way, Loading, Exstart, Exchange, and Full
F. Down, 2 - Way, Init, Exstart, Exch ange, Loading, and Full

2.單項選擇題

Refer to the exhibit. OSPF has been configured on all routers in the network and Area 1 has been configured as a NSSA. Which statement is true about the NSSA Area 1?()

A. Only redistributed RIP routes will appear in Area 1. They will be advertised via t ype 7 LSAs
B. No redistributed routes can appear in Area 1, only summary routes
C. Redistributed RIP and IGRP routes will appear in Area 1. They will be advertised via type 5 LSAs
D. Only redistributed IGRP routes will appear in Area 1. They will be advertised via type 7 LSAs

3.單項選擇題

Refer to the exhibit. Which st atement is true?()

A. Router RTA is the BDR
B. Router RTA is directly connected to interface 192.168.45.1
C. Neighbor 192.168.45.1 has changed its OSPF priority number
D. Router RTA and neighbor 192.168.45.2 are exchanging OSPF LSAs

4.單項選擇題

Refer to the exhibit. Which statement is true about the configuration? ()

A. RTA will not establish an OSPF adjacency w ith RTB
B. RTA will send OSPF hello packets, but will not send OSPF updates
C. RTA will not accept OSPF hello packets from RTB
D. RTA will send OSPF updates, but will not establish an adjacency with RTB

5.單項選擇題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 up

最新試題

Look at the following configuration below and select the statements that are true.()RD2(config)#router ospf 100RD2(config - router)# distance 180 10.1.10.1 0.0.0.0 match - meRD2(config -router)#!RD2(config - router) #ip access - list standard match - meRD2(config - std - nacl)# permit host 172.16.0.0

題型:多項選擇題

Router R1 sits  at an Enterprise branch office, using both the Internet and a leased line to another Enterprise router for its two connectivity options back into the rest of the Enterprise network. The engineer planning for this branch decided to use the leased line for all Enterprise traffic, unless it fails, in which case the Internet connection should be used to pass traffic to the Enterprise.Which of the following is most likely to be useful on the branch router?()

題型:多項選擇題

Router R1, a branch router, connects to the Internet using DSL. The engineer plans to use a configuration with a dialer interface. The answers list a feature and interface on which the feature could be configured.Which combinations accurately describe the interface under which a feature will be configured?()

題型:單項選擇題

Router R1 has two LAN interfaces and three serial interfaces enabled for IPv6. All the inte rfaces use link local addresses automatically generated by the router.Which of the following could be the link local address of R1's interface S0/0?()

題型:單項選擇題

The following line of output was gathered on Enterprise Router Ent1 using the command show ip route. Which of the following answers is most likely to be true, based on thi s output?()B 128.107.0.0 [20/10] via 11.11.11.11, 00:02:18

題型:單項選擇題

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

題型:單項選擇題

Router R1 lists the following output from a show command. Which of the following is true about R1?()R1# show ip v6 interface f0/0FastEthernet0/0 is up, line protocol is upIPv6 is enabled, link - local address is FE80::213:19FF:FE12:3456No Virtual link - local address(es):Global unicast address(es):2000::4:213:19FF:FE12:3456, subnet is 2000:0:0:4::/64 [EUI]Jo ined group address(es):FF02::1FF02::2FF02::1:FF:12:3456

題型:單項選擇題

Which of the following must match for  two directly connected routers running OSPF to establish a neighbor adjacency?()

題型:多項選擇題

Router R1, a branch router, connects to the Internet using DSL. Some traffic flows through a GRE and IPsec tunnel, over the DSL connection, destined for an Enterprise network.Which of the following answers best describes the router's logic that tells the router, for a given packet, to apply GRE encapsulation to the packet?()

題型:單項選擇題

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

題型:單項選擇題