A. BGP uses TCP port 179.
B. BGP ensures reliability of updates by using the reliable transport services of TCP.
C. The network command with the mask option never insta lls a prefix into the BGP table unless there is a matching prefix exists in the IP route table.
D. A TCP connection is required before exchanging updates.
E. BGPuses notification and the update messages to establish and maintain the BGP neighbor relati onship.
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Refer to the exhibit. Which statement is true about the 6.6.6.0/24 prefix?（）
A. The command neighbor send -community is configured on BGP neighbor 10.10.23.3.
B. If another path advertises the 6.6.6.0/24 path and has the default local preference, that path is more preferred.
C. Route 6.6.6.0/24 is learned by an IBGP peer.
D. The route 10.10.23.3 is not being advertised to other BGP neighbors.
A. Only one IPv6 address can be assigned to each interface.
B. IPv6 hosts use anycast addresses to assign IP addresses to interfaces.
C. Each host can a utoconfigure its address without the aid of a DHCP server.
D. Only one IPv6 address is assigned per node.
Refer to the exhibit. Autonomous systems 200 and 300 have EBGP sessions established with their directly connected routers in au tonomous system 100. IGP has been configured on all routers in autonomous system 100 and they successfully exchange routing updates. Traffic originated in autonomous system 200 cannot reach the destination autonomous system 300. What configuration shoul d be done on the routers in autonomous system 100 in order for the traffic coming from autonomous system 200 to be forwarded to autonomous system 300?（）
A. IBGP session must be established between routers R1 R2 and R2 R3, and the synchronization must be turned off.
B. IBGP speakers within autonomous 100 must be fully meshed, and the synchronization must be turned on.
C. IBGP session must be established between routers R1 R2 and R2 R3, and the synchronization must be turned on.
D. IBGP session mu st be established between routers R1 and R3, and the synchronization must be turned off.
E. IBGP speakers within autonomous 100 must be fully meshed, and the synchronization must be turned off.
F. IBGP session must be established between routers R1 and R3, and the synchronization must be turned on.
Refer to the exhibit. By default, when RTB passes BGP advertisements from RTA about network 192.168.2.0 to RTC, what address will be listed as the next - hop address? （）
A. 10.1.1.2
B. 192.168.1.49
C. 10.1.1.1
D. 192.168.1.50
Based on the show ip bgp summary output, which two statements are true?（）
A. The BGP session to the 10.3.3.3 neighbor is established, but the router has not received any BGP routing updates from the 10.3.3.3 neighbor.
B. The router is attempting to establish a BGP peering session with the 10.2.2.2 neighbor.
C. The router is attempting to establish a BGP peering session with the 10.1.1.1 neighbor.
D. The BGP session to the 10.3.3.3 neighbor is established.
E. The BGP session to the 10.2.2.2 neighbor is established.
F. The BGP session to the 10.1.1.1 neighbor is established.
A. An internal routing protocol can be used to reach an EBGP neighbor.
B. The next hop does not change when BGP updates are exchanged between EBGP neighbors.
C. EBGP requires a full mesh.
D. A static route can be used to form an adjacency between neighbors.
When an IPv6 enabled host boots, it sends a router solicitation (RS) message. An IPv6 router responds with a router advertisement (RA).
Which two items are c ontained in the RA?（）
A. any route advertisements it has received
B. prefixes for the link
C. keepalive timers
D. IPv6 address for the host
E. request for the local host IP address
F. lifetime of the prefix
A. They must be fully meshed
B. They can be in a different AS
C . They do not need to be directly connected
D. They must be directly connected
Refer to the exhibit diagram and config uration. RTB is summarizing its networks from AS 64100 with the aggregate - address command. However, the show ip route command on RTA reveals the RTB individual networks as well as its summary route.
Which option would ensure that only the summary 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 onl y the aggregate - address statement in the BGP configuration.
D. Add the keyword summary - only to the aggregate - address command.
Observe the diagram. RTC is the hub router and RTA and RTB are the spokes. There are no virtual circuits between the spoke locations. What is needed to successfully route traffic to the 11.11.11.0/24 network from RTA? （）
A. The neighbor 10.10.10.1 next - hop - self com mand on RTA
B. Nothing is required. This is the default behavior on this topology
C. The neighbor 10.10.10.1 next - hop - self command on RTB
D. The neighbor 10.10.10.1 next - hop - self command on RTC
最新試題
Which of the following must match for two directly connected routers running OSPF to establish a neighbor adjacency?（）
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
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
The following output on Router R1 lists details of a BGP route for 190.1.0.0/16. Which of the following is true based on this output?（）R1# show ip bgp 19 0.1.0.0/16BGP routing table entry for 190.1.0.0/16, version 121Paths: (1 available, best #1, table Default - IP - Routing - Table)Advertised to update - groups:11 2 3 41.1.1.1 from 2.2.2.2 (3.3.3.3)Origin IGP, metric 0, localpref 100, valid, internal, best
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
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?（）
Which of the following is helpful to allow an IPv6 host to learn the IP address of a default gateway on its subnet?（）
An Enterprise rou ter, Ent1, displays the following excerpt from the show ip bgp command. ENT1 has an eBGP connection to an ISP router with address 3.3.3.3 and an iBGP connection to a router with address 4.4.4.4. Which of the following is most likely to be true?（）Network Next Hop Metric LocPrf Weight Path*> 3.3.3.3 0 0 1 1 1 1 218 i
Which of the following IPv6 tunneling mechanisms support IPv6 IGP routing protocols?（）
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