A. Subnet prefixB. ISP prefixC. Global routing prefixD.……

单项选择题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

单项选择题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

A. This router has set the Weight of this route to 10.
B. This router's BGP table lists this route as an iBGP route.
C. This router's MED has been set to 10.
D. This router's BGP table lists an AS_Path length of 10 for this route.

单项选择题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 2 18 i

A. The Enterprise likely uses ASN 1.
B. The neighboring ISP likely uses ASN 1.
C. The route has been advertised through ASN 1 multiple times.
D. Router Ent1 will add another ASN to the  AS_Path before advertising this route to its iBGP peer (4.4.4.4).

多项选择题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 16 BGP routing table entry for 190.1.0.0 16, version 121 Paths: (1 available, best #1, table Default - IP - Routing - Table) Advertised to update - groups: 1 1 2 3 4 1.1.1.1 from 2.2.2.2 (3.3.3.3) Origin IGP, metric 0, localpref 100, valid, internal, best

A. R1 has a neighbor 1.1.1.1 command configured.
B. R1 has a neighbor 2.2.2.2 command configured.
C. The show ip bgp command lists a line for 190.1.0.0/16 with both an ">" and an "i" on the left.
D. R1 is in ASN 1.

多项选择题An engineer has been told to create an implementation plan to influence the choice of best BGP route on a single router using the Weight featurE. The sole Enterprise Internet - connected router, Ent 1, has neighbor relationships with Routers ISP1 and ISP2, which reside inside two different ISPs. The goal is to prefer all routes learned from ISP1 over ISP2 using Weight. Which of the following answers lists a configuration step that would not be usefu l for achieving these goals?（）

A. Configuring the neighbor weight command on Ent1.
B. Having the ISPs configure the neighbor route - map out command on ISP1 and ISP2, with the route map setting weight.
C. Configuring the set weight command inside a route map on Router Ent1.
D. Configuring a prefix list to match all class C networks.