思科认证考试
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. Whi
题目
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
相似问题和答案
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
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
第3题：
A multicast router may receive thousands of multicast(71)every day for different groups. If a router has no knowledge about the membership status of the(72), it must broadcast all of these packets. This creates a lot of traffic and consumes(73). A better solution is to keep a list of groups in the network for which there is at least one loyal member.(74)helps the multicast router create and update this list. For each group, there is one router that has the duty of distributing the(75)packets destined for that group. This means that if there are three multicast routers connected to a network, their lists of groupids are mutually exclusive. A host or multicast router can have membership in a group.
A．packets
B．errors
C．reports
D．alarms
第4题：
A router has been configured with an EIGRP variance of 3. Which of the following statements istrue？（）
- A、An error will result because a router cannot be configured with an EIGRP variance of 3 becausethe maximum variance number is 2
- B、The successor route will end up in the routing table， and so will any route with a metric at mostthree times greater than the value of the successor’s metric
- C、EIGRP will only advertise routes that are within three hops of the current router
- D、The successor route will end up in the routing table， and so will any route with a metric at leastone third the value of the successor’s metric
- E、The best three routes with equal cost paths will end up in the routing table
- F、The successor route will be any route with three times the value of the advertised distance
正确答案:B
第5题：
On router R1， which three of the following protocols will be forwarded to a host specified by the "iphelper-address" interface configuration command if the configuration has not been modified by the"ip forward-protocol udp" global configuration command？（）
- A、BOOTP
- B、TFTP
- C、ARP
- D、DNS
- E、proxy-ARP
- F、FTP
- G、CDP
正确答案:A,B,D
第6题：
A.The router is in area 49.0001.0002
B.The router acts as a Level 1 - 2 router
C.CLNS routing is enable d for the router
D.The router has a system ID of 0003.0004
E.The interfaces have a functional IS - IS configuration
F.The network service access point selector (NSEL) byte has a value of 0
第7题：
In BGP routing，what does the rule of synchronization mean？（）
- A、A BGP router can only advertise an EBGP learned route，provided that the route is an IGP route in the routing table.
- B、A BGP router can only advertise an IBGP learned route，provided that the route is an IGP route in the routing table.
- C、A BGP router can only advertise an IBGP learned route，provided that the route is an IGP route that is not in the routing table.
- D、A BGP router can only advertise an EBGP learned route，provided that the route is a metric of 0 in the BGP table.
正确答案:B
第8题：
There are three routers on a Gigabit Ethernet LAN: Router A, Router B, and Router C. Router A is the Designated Intermediate System (DIS) at Level 1 for that LAN. Router A‘s DIS priority is 64. The LAN is a Level 1-only link. Router D has just been powered up on that same LAN and its DIS priority is 80.Which statement is true?（）
A. Router A remains the DIS and generates a new pseudonode LSP for that LAN
B. Router A remains the DIS and NO new pseudonode LSP is generated for that LAN
C. Router D becomes the new DIS, generates a new pseudonode LSP for that LAN, and purges the old pseudonode LSP generated by Router A
D. Router D becomes the new DIS, does NOT generate a new pseudonode LSP for that LAN, and does NOT purge the old pseudonode LSP generated by Router A
第9题：
Which three statements about the secure domain router are true？（）
- A、The logical router can span across chassis.
- B、The fabric and system controller module are shared by all logical routers.
- C、Each logical router has a distinct fabric and system controller module
- D、The logical router can share a route processor
- E、The logical router cannot share a route processor
正确答案:A,B,E
第10题：
Which three statements about the route target （RT） are true？ （）
- A、The RT is a BGP extended community.
- B、The RT is an 8-byte field that is prefixed to an IPv4 address to make it a unique VPNv4 address.
- C、When a VPN route that is learned from a CE router is injected into BGP， one or more RTs are associated with it
- D、The distribution of VPN routing information is controlled through the use of VPN RTs
- E、When a VPN route that is learned from a CE router is injected into BGP， there is always one RT that is associated with it.
正确答案:A,C,D