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.
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Router R1 learns two routes with BGP for prefix 200.1.0.0/16. Comparing the two routes, route 1 has a shorter AS_Path Length, smaller MED, the same Weight, and smaller Local PreferencE.
Which of the following is true about Router R1's choice of best path for this prefix?（）
A. Route 1 is the best route.
B. Route 2 is the best route.
C. The routes tie as best, but one will be picked to be placed in the routing table based on tiebreakers .
D. Neither route is considered best.
Router R1 learns two routes with BGP for prefix 200.1.0.0/16. Comparing the two routes, route 1 has a longer AS_Path Length, bigger MED, bigger Weight, and smaller Loca l PreferencE.
Which of the following is true about Router R1's choice of best path for this prefix?（）
A. Route 1 is the best route.
B. Route 2 is the best route.
C. The routes tie as best, but one will be picked to be placed in the routing table based on tiebreakers.
D. Neither route is considered best.
An engineer is preparing an implementation plan in which the configuration needs to influence BGP's choice of best path.
Which of the following is least likely to be used by the configuration in this imple mentation plan?（）
A. Weight
B. Origin code
C. AS_Path
D. Local_Pref
A. clear ip bgp *
B. clear ip bgp 1.1.1.1
C. clear ip bgp * soft
D. clear ip bgp 1.1.1.1 out
A. A neighbor distribute - list out command, referencing a standard ACL
B. A neighbor prefix - list out command
C. A neighbor filter - list out command
D. A neighbor distribute - list out command, referencing an extended ACL
E. A neighbor route - map out command
R1 is currently advertising prefixes 1.0.0.0/8, 2.0.0.0/8, and 3.0.0.0/8 over its eBGP connection to neighbor 2.2.2.2 (R2). An engineer configures a prefix list (fred) on R1 that permits only 2.0.0.0/8 and then enables the filter with the neighbor R2 prefix- list fred out command. Upon exiting configuration mode, the engineer uses some show commands on R1, but no other commands.
Which of the following is true in this case?（）
A. The show ip bgp neighbor 2 .2.2.2 received -routes command lists the three original prefixes.
B. The show ip bgp neighbor 2.2.2.2 advertised - routes command lists the three original prefixes.
C. The show ip bgp neighbor 2.2.2.2 routes command lists the three original prefixes.
D. T he show ip bgp neighbor 2.2.2.2 routes command lists only 2.0.0.0/8.
E. The show ip bgp neighbor 2.2.2.2 advertised - routes command lists only 2.0.0.0/8.
A company uses Routers R1 and R2 to connect to ISP1 and ISP2, respectively, with Routers I1 and I2 used at th e ISPs. R1 peers with I1 and R2; R2 peers with I2 and R1. R1 and R2 do not share a common subnet, relying on other routers internal to the Enterprise for IP connectivity between the two routers.
Which of the following could be used to prevent potential routing loops in this design?（）
A. Using an iBGP mesh inside the Enterprise core
B. Configuring default routes in the Enterprise pointing to both R1 and R2
C. Redistributing BGP routes into the Enterprise IGP
D. Tunneling the packets for the i BGP connection between R1 and R2
A company uses Routers R1 and R2 to connect to ISP1 and ISP2, respectively, with Routers I1 and I2 used at the ISPs. R1 peers with I1 and R2; R2 peers with I2 and R1.
Assuming as many default s ettings as possible are used on all four routers, which of the following is true about the next - hop IP address for routes R1 learns over its iBGP connection to R2?（）
A. The next hop is I2's BGP RID
B. The next hop is I2's IP address used on the R2 - I2 neigh bor relationship
C. The next hop is R2's BGP RID
D. The next hop is R2's IP address used on the R1 - R2 neighbor relationship
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 190.1.0.0/16
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 a n > and an i on the left.
D. R1 is in ASN 1.
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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
Router R1 currently has no configuration related to IPv6 or IPv4. The following configuration exists in a planning document, intended to be used to copy/paste into Router R1 to enable RIPng and IPv6 on interfaces F0/0 and S0/0/0. No other related configuration exists. Which of the following is true about RIPng on R1 after this configuration has been pasted into R1?（）ipv6 unicast- routinginterface f0/0ipv6 rip one enableipv6 address 2000::1/64interface s0/0/0ipv6 address 2001::/64 eui - 64ipv6 rip one enable
Router R1 currently has no configuration related to IPv6 or IPv4. The following configuration exists in a planning document, intended to be used to copy/paste into Router R1 to enable OSPFv3 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 OSPFv3 on R1 after this configuration has been pasted into R1?（）ipv6 router ospf 1ipv6 unicast- routinginterface f0/0ipv6 address 2000 ::1/64ipv6 ospf 1 area 1interface s0/0/0ipv6 address 2001::/64 eui - 64ipv6 ospf 1 area 0
Which of the following are true of both OSPFv2 and OSPFv3?（）
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?（）
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 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
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?（）
Which of the following is the shortest valid abbreviation for FE80:0000:0000:0000:0010:0000:0000:0123?（）
Router R1 connects to Router R2 over an Ethernet LAN with both routers using their F0/0 interfaces. R1 learns a route from R2 using EIGRP f or IPv6. That route lists F0/0 as the outgoing interface with R2 as the next hop. The configuration excerpt shows all relevant configuration on R2's F0/0 interface. Which of the following is true about R1's route?（）interface f0/0mac - address 1111.1111.1 111ipv6 address 2000::/64 eui - 64ipv6 address 2001::1/64