A router has two paths to reach another network in a differe

题目
单选题
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 50

B

Th e router will prefer the shortest autonomous system path

C

If the command bgp always - compare - med has been given, then the router will prefer the route with the highest MED

D

The router will prefer the route with the lower MED

参考答案和解析
正确答案: A
解析: 暂无解析
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第1题:

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 broadcast

B. RouterC(config - if)#ip ospf network point - to - point RouterD(config - if)#ip ospf network point - to - point

C. RouterC(config - router)#neighbor 10.100. 100.4 RouterD(config - router)#neighbor 10.100.100.3

D. RouterC(config - router)#neighbor 10.255.255.254 RouterD(config - router)#neighbor 10.255.255.253


参考答案:A, B, D

第2题:

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. the OSPF route

B. the EIGRP route

C. the RIPv2 route

D. all three routes

E. the OSPF and RIPv2 routes


参考答案:B

第3题:

Which two conditions, when met, allow an IS-IS Level 2 router to be considered attached?()

A. You can reach other Level 2 routers.

B. It can reach at least one other defined area.

C. The router is reachable by at least two ES-IS nodes.

D. It has at least one enabled reachable prefix with a valid metric defined.


参考答案:B, D

第4题:

The Testking network is utilizing RIP as the IP routing protocol. Router TK1 learns how to reach the same destination via 6 different paths. All paths have the same metric and administrative distance. With all routers using the default operation,which of the paths will be chosen to reach the destination?()

  • A、Only the first two paths that are learned.
  • B、Four of the paths.
  • C、All six routes in a routed robin fashion.
  • D、The oldest two paths in the routing table.
  • E、The first path learned to the destination network.

正确答案:B

第5题:

Which two of these are characteristics of an IPS device?()

  • A、 passively listens to network traffic
  • B、 is an active device in the traffic path
  • C、 has a permissive interface that is used to monitor networks
  • D、 traffic arrives on one IPS interface and exits on another

正确答案:B,D

第6题:

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. one

B. three

C. two

D. zero


参考答案:C

第7题:

Traditional network layer packet forwarding relies on the information provided by network layer () protocols, or static routing, to make an independent (本题)decision at each hop within the network. The forwarding ()is based solely on the destination ()IP address. All packets for the same destination follow the same path across the network if no other equal-cost paths exist. Whenever a router has two equal-cost ()toward a destination, the packets toward the destination might take one or both of them, resulting in some degree of load sharing.

A.switch
B.hop
C.host
D.cunstomer

答案:B
解析:

第8题:

Refer to the exhibit. Router B and router C are performing mutual redistribution between OSPF and EIGRP, and their default metrics are configured the same. Router D has equal cost paths to networks where both paths are not r eally equal cost. For example, network 172.16.54.0 shows equal cost through both router B and router C, though in reality the cost is greater using router C. Other routers, though not shown, are connected to the 172.16.54.0 and 172.16.55.0 networks, and the same issues exist to those routers and the networks connected to them. What can be done so that data will be routed along the most optimal path in the network? ()

A. Redistribute connected interfaces on router B and router C

B. Set the maximum nu mber of equal cost paths to1 in all routers

C. When redistributing EIGRP into OSPF, set the external metric type to type E1

D. Adjust the default metrics in router B and router C so that the values are different in each router

E. None of these solut ions will fix the problem. Migrate to a single dynamic routing protocol


参考答案:E

第9题:

A switch has been configured with two vlans and is connected to a router with a trunk for inter-vlan routing.OSPF has been configured on the router,as the routing protocol for the network.Which statement about thisnetwork is true?()

  • A、For the two vlans to communicate,a network statement for the trunk interface needs to be added to the  OSPF configuration.
  • B、For the two vlans to communicate, a network statement for each subinterface needs to be  added  to the OSPF configuration.
  • C、Direct inter-vlan communication does not require OSPF
  • D、OSPF cannot be used if router-on-a-stick is configured on the router

正确答案:C

第10题:

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 50
  • B、Th e router will prefer the shortest autonomous system path
  • C、If the command bgp always - compare - med has been given, then the router will prefer the route with the highest MED
  • D、The router will prefer the route with the lower MED

正确答案:B

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