A. The interface used to connect to that neighbor being passive in the OSPF process
B. Duplicate OSPF router IDs
C. Mismatched dead timers
D. IP addr esses of 10.1.1.1/24 and 10.2.2.2/24
E. Mismatched OSPF process IDs
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Routers R1 and R2, OSPF neighbors in area 0 over their Fa0/0 interfaces (respectively), currently both successfully use OSPF MD5 authentication. The OSPF configuration includes the area 0 authentication command under the router ospf 1 command.
Which of the following commands must have been configur ed on R1's Fa0/0 interface?（）
A. ip ospf authentication null
B. ip ospf authentication message - digest
C. ip ospf authentication -key whatever- it - is
D. ip ospf message - digest - key 1 md5 whatever - it - is
E. ip ospf md5 1 key whatever - it - is
Routers R1 and R2 are OSPF neighbors using their Fa0/0 interfaces, respectively, using default settings for all timers. An engineer ad ds the ip ospf hello - interval 6 command to R1's Fa0/0 configuration.
Which of the following is true regarding the results from this change?（）
A. The show ip ospf neighbor command on R1 lists the revised Hello timer
B. The show ip ospf interfac e brief command on R1 lists the revised Hello timer
C. The R1 - R2 neighborship fails due to Hello timer mismatcH
D. The show ip ospf interface command on R1 lists the revised Hello timer
Rout er R1 directly connects to subnet 10.1.1.0/24 with its Fa0/0 interface. R1 can ping four other working OSPF routers in that subnet. R1 is neither the designated router (DR) nor backup DR (BDR). OSPF is working correctly on all five routers.
Which of the following is true on R1?（）
A. The show ip ospf neighbors command lists two neighbors off Fa0/0.
B. The show ip ospf neighbors command lists four neighbors off Fa0/0.
C. The show ip ospf neighbors command lists two neighbors off Fa0/0 in the FULL state.
D. The show ip ospf neighbors command lists two neighbors off Fa0/0 in the DISCO state.
A. show ip ospf database
B. show ip ospf interface brief
C. show ip protocols
D. show ip route ospf
E. show ip ospf neighbors
A. The ABR must have multiple interfaces connected to the backbone areA
B. An ABR is a router with two interfaces, each connected to a different nonbackbone areA
C. The only requirement to be considered an ABR is at least one interface connected to the backbone areA
D. An ABR must have at least one interface in the backbone area plus at least one other interface in a nonbackbone areA
最新試題
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?（）
Router R1 has the following configuration. Assuming R1's F0/0 interface has a MAC address of 0200.0011.1111, what IPv6 addresses will R1 list for interface F0/0 in the output of the show ipv6 interface brief command?（）interface f0/0ipv6 address 2345:0:0:8::1/64
Which of the following is helpful to allow an IPv6 host to learn the IP address of a default gateway on its subnet?（）
Router R1 currently has no configuration related to IPv6 or IPv4. The following configuration exis ts in a planning document intended to be used to copy/paste into Router R1 to enable EIGRP for IPv6 on interfaces F0/0 and S0/0/0. No other related configuration exists. Assuming F0/0 and S0/0/0 reach an up/up state, which of the following is true about EIGRP for IPv6 on R1 after this configuration has been pasted into R1?（）ipv6 router eigrp 1ipv6 unicast- routinginterface f0/0ipv6 address 2000::1/64ipv6 eigrp 1interface s0/0/0ipv6 address 2001::/64 eui - 64ipv6 eigrp 1
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?（）
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?（）
The following configuration exists on a router on one end of an IPv6 tunnel. Although the configuration added so far is correct, the configuration is incomplete. Which type of tunnel is most likely to be intended by the network engineer？（）interface loopback 1ip address 192.168.1.1 255.255.255.255interface tunnel 2ipv6 address 2002:C0A8:10 1::1/64tunnel source loopback 1
An engineer is reviewing another engineer's sample configuration for a GRE tunnel used to pass IPv6 traffiC. The tunnel ha s not yet been configured on the router.Which of the following commands is not required for the configuration to pass IPv6 traffic?（）
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
Router R1 sits at an Enterprise branch office, using the Internet for its only connectivity back to the rest of the EnterprisE.Which of the following is not a ben efit of using an IPsec tunnel for packets sent through the Internet, between R1 and the rest of the Enterprise?（）