多选题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?()AConfiguring the neighbor weight command on Ent1.BHaving the ISPs configure the neighbor route - map out command on ISP1 and ISP2, with the route map setting weight.CConfiguring the set weight command inside a route map on Router Ent1.DConfiguring a prefix list to match all class C networks.

多选题
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.


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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, 00:02:18A. 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.

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 iA. 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).

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.

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.

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. WeightB. Origin codeC. AS_PathD. Local_Pref

Enterprise Router R1, in ASN 1, connects to ISP Router I1, ASN 2, using eBGP. There are two parallel serial links between the two rou ters. The implementation plan calls for each router to base their BGP TCP connection on their respective loopback1 interfaces, with IP addresses 1.1.1.1 and 2.2.2.2, respectively.Which of the following commands would not be part of a working eBGP confi guration on Router R1?()A. router bgp 1B. neighbor 2.2.2.2 remote- as 2C. neighbor 2.2.2.2 update - source loopback1D. neighbor 2.2.2.2 multihop 2

Enterprise Router R1, in ASN 1, connects to ISP Router I1, ASN 2, using eBGP. The single serial link b etween the two routers uses IP addresses 10.1.1.1 and 10.1.1.2, respectively. Both routers use their S0/0 interfaces for this link.Which of the following commands would be needed on R1 to configure eBGP?()A. router bgp 2B. router bgp 1C. neighbor 10.1 .1.2 remote - as 2D. neighbor 10.1.1.2 Update - source 10.1.1.1E. neighbor 10.1.1.2 Update- source S0/0

Which of the following is the primary motivation for using BGP between an Enterprise and its ISPs?() A. To influence the choice of best path (best route) for at least some routesB. To avoid having to configure static routesC. To allow redistribution of BGP routes into the IGP routing protocolD. To monitor the size of the Internet BGP table

Enterprise Router R1 connects an Enterprise to the Internet. R1 needs to create and advertise a default route into the Enterprise using EIGRP. The engineer creating the implementation plan has chosen to base this default route on the ip route command, rather than using i p default - network.Which of the following is not a useful step with this style of default route configuration?()A. Create the default route on R1 using the ip route 0.0.0.0 0.0.0.0 outgoinginterface command.B. Redistribute the statically configured defa ult route.C. Disable auto - summary.D. Configure the network 0.0.0.0 command.E. Ensure R1 has no manually configured summary routes using the ip summary- address eigrp command.

Router R1 exists in an Enterprise that uses EIGRP as its routing protocol. The show ip route command output on router R1 lists the following phrase: Gateway of last resort is 1.1.1.1 to network 2.0.0.0.Whic h of the following is most likely to have caused this output to occur on R1?()A. R1 has been configured with an ip default- network 2.0.0.0 command.B. R1 has been configured with an ip route 0.0.0.0 0.0.0.0 1.1.1.1 command.C. R1 has been configured with an ip route 2.0.0.0 255.0.0.0 1.1.1.1 command.D. Another router has been configured with an ip default - network 2.0.0.0 command.E. Another router has been configured with an ip route 2.0.0.0 255.0.0.0 1.1.1.1 command.

Refer to the exhibit. Two routers are connected by Frame Relay and are running OSPF bet ween them. Each router has been configured with the appropriate network statements under router ospf 1, but the routers are not forming an adjacency. Which of the following three commands could be configured on each router to correct this problem?()A. RouterC(config - if)#ip ospf network broadcast RouterD(config - if)#ip ospf network broadcastB. RouterC(config - if)#ip ospf network point - to - point RouterD(config - if)#ip ospf network point - to - pointC. RouterC(config - router)#neighbor 10.100. 100.4 RouterD(config - router)#neighbor 10.100.100.3D. RouterC(config - router)#neighbor 10.255.255.254 RouterD(config - router)#neighbor 10.255.255.253

Refer to the exhibit The neighbor 10.1.1.1 weight 200 BGP configuration command has been configured on router A. What will be the result of this configuration? () A. Router A will prefer the path through router B for network 172.20.0.0B. Router A will prefer the path through router C for network 172.20.0.0C. Packets from router D will prefer the path through router B for networks advertised by router AD. Packets from r outer D will prefer the path through router C for networks advertised by router A

A router has two paths to reach another network in a different autonomous system. Neither route was generated by the local router and both routes have the same default weight an d local preference values.Which statement is true about how BGP would select the best path?()A. To influence one route to be preferred, its default local preference value will be changed via the use of the command bgp default local - preference 50B. Th e router will prefer the shortest autonomous system pathC. If the command bgp always - compare - med has been given, then the router will prefer the route with the highest MEDD. The router will prefer the route with the lower MED

The Dev - 1 and Dev -3 routers are OSPF neighbors over the Ethernet 0/0 connection. Based on the show ip ospf neighbor output from the Dev - 1 and Dev - 3 routers, which statement is true?() A. Dev - 1 is the DR because it has a lower OSPF router IDB. Dev - 3 is the DR because it has a higher OSPF router priorityC. Both Dev - 1 and Dev - 3 are using the def ault OSPF router priorityD. Dev - 3 is the DR because it has a lower OSPF router IDE. Dev - 1 is the DR because it has a higher OSPF router priority

Refer to the exhibit. EIGRP has been configured on routers R1 and R2. However, R1 does not show R2 as a neighbor and does not accept routing updates from R2.What could be the cause of the problem?() A. The no auto - summary command has not been issued under the EIGRP process on both routers.B. Interface E0 on router R1 has not been configured with a secondary IP address of 10.1.2.1/24.C. EIGRP cannot exchange routing updates with a neighbor‘s router interface that is configured with tw o IP addresses.D. EIGRP cannot form neighbor relationship and exchange routing updates with a secondary address.

A company has a small network,consisting of a single switch and a single router. The switch has been configured with two vlans,and route-on-a-stick is being configured on the router for inter-vlan routing. A trunk is configured to connect the switch to the router.What is the minimum number of router subinterfaces that are required for all the vlans to communicate?()A.oneB.threeC.twoD.zero

Which of the following is the primary motivation for using BGP between an Enterprise and its ISPs?()A、To influence the choice of best path (best route) for at least some routesB、To avoid having to configure static routesC、To allow redistribution of BGP routes into the IGP routing protocolD、To monitor the size of the Internet BGP table

What is the most likely reason that an IBGP route that has been selected as a best route is not entered into the IP routing table?()A、Route reflectors are not passing updates properly.B、BGP synchronization has been enabled.C、The next-hop address is unreachable.D、No loopback interface has been configured on a router.

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.

A router has two paths to reach another network in a different autonomous system. Neither route was generated by the local router and both routes have the same default weight an d local preference values. Which statement is true about how BGP would select the best path?()A、To influence one route to be preferred, its default local preference value will be changed via the use of the command bgp default local - preference 50B、Th e router will prefer the shortest autonomous system pathC、If the command bgp always - compare - med has been given, then the router will prefer the route with the highest MEDD、The router will prefer the route with the lower MED

A router has learned three possible routes that could be used to reach a destination network. One route is from EIGRP and has a composite metric of 20514560. Another route is from OSPF with a metric of 782.The last is from RIPv2 and has a metric of 4. Which route or routes will the router install in the routing table?()A、Router R2 will not form a neighbor relationship with R1.B、Router R2 will obtain a full routing table, including a default route, from R1.C、R2 will obtain OSPF updates from R1, but will not obtain a default route from R1.D、R2 will not have a route for the directly connected serial network, but all other directly connected

Two routers configured to run BGP have been connected to a firewall, one on the inside interface and one on the outside interface. BGP has been configured so the two routers should peer, including the correct BGP session endpoint addresses and the correct BGP session hop-count limit (EBGP multihop). What is a good first test to see if BGP will work across the firewall?()A、Attempt to TELNET from the router connected to the inside of the firewall to the router connected to the outside of the firewall. If telnet works, BGP will work, since telnet and BGP both use TCP to transport data.B、Ping from the router connected to the inside interface of the firewall to the router connected to the outside interface of the firewall. If you can ping between them, BGP should work, since BGP uses IP to transport packets.C、There is no way to make BGP work across a firewall without special configuration, so there is no simple test that will show you if BGP will work or not, other than trying to start the peering session.D、There is no way to make BGP work across a firewall.

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、WeightB、Origin codeC、AS_PathD、Local_Pref

多选题Enterprise Router R1 connects an Enterprise to the Internet. R1 needs to create and advertise a default route into the Enterprise using EIGRP. The engineer creating the implementation plan has chosen to base this default route on the ip route command, rather than using i p default - network. Which of the following is not a useful step with this style of default route configuration?()ACreate the default route on R1 using the ip route 0.0.0.0 0.0.0.0 outgoinginterface command.BRedistribute the statically configured defa ult route.CDisable auto - summary.DConfigure the network 0.0.0.0 command.EEnsure R1 has no manually configured summary routes using the ip summary- address eigrp command.

单选题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 iAThe Enterprise likely uses ASN 1.BThe neighboring ISP likely uses ASN 1.CThe route has been advertised through ASN 1 multiple times.DRouter Ent1 will add another ASN to the AS_Path before advertising this route to its iBGP peer (4.4.4.4).

单选题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?()ARoute 1 is the best route.BRoute 2 is the best route.CThe routes tie as best, but one will be picked to be placed in the routing table based on tiebreakers.DNeither route is considered best.

单选题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, 00:02:18AThis router has set the Weight of this route to 10.BThis router's BGP table lists this route as an iBGP route.CThis router's MED has been set to 10.DThis router's BGP table lists an AS_Path length of 10 for this route.