Router R1 has eBGP connections to I1 and I 2, routers at the same ISP. The company that owns R1 can use public address range 130.1.16.0/20. The following output lists all the IP routes in R1‘s routing table within this rangE. Which of the following answer

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第2题：

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 2
• B、router bgp 1
• C、neighbor 10.1 .1.2 remote - as 2
• D、neighbor 10.1.1.2 Update - source 10.1.1.1
• E、neighbor 10.1.1.2 Update- source S0/0

第3题：

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 1
• B、neighbor 2.2.2.2 remote- as 2
• C、neighbor 2.2.2.2 update - source loopback1
• D、neighbor 2.2.2.2 multihop 2

第4题：

Routers R1 and R2 use HSRP so that one router will back up the other should there be a failure.   Which two statements are true about the Hot Standby Router Protocol （HSRP）？ （）

• A、 Load sharing with HSRP is achieved by creating multiple subinterfaces on the HSRP routers.  
• B、 Routers configured for HSRP can belong to multiple groups and multiple VLANs.
• C、 Load sharing with HSRP is achieved by creating HSRP groups on the HSRP routers.
• D、 All routers configured for HSRP load balancing must be configured with the same priority.  
• E、 Routers configured for HSRP must belong to only one group per HSRP interface.

第5题：

Router R1 and R2 are both configured for HSRP.  Which two statements about the HSRP priorities  of these two routers are true？（）

• A、 To assign the HSRP router priority in a standby group， the standby group-number priority  priority-value global configuration command must be used.
• B、 The default priority of a router is zero （0）.
• C、 The no standby priority command assigns a priority of 100 to the router.
• D、 Assuming that preempting has also been configured， the router with the lowest priority in an  HSRP group would become the active router.
• E、 When two routers in an HSRP standby group are configured with identical priorities， the router  with the highest configured IP address will become the active router.

第6题：

An employee of ABC company has move to an office on a different floor. Although the administrator is able to telnet to all of the routers,the address of Switch F is needed in order to verify that the employee remains in the same VLAN.Which action could be used by the administrator to find the IP address of Switch F?（）

• A、Issue the show ip route command on Router A
• B、Issue the show ip route command on Router B
• C、Issue the show cdp neighbors command on Router B
• D、Issue the show cdp neighbors detail command on Router C
• E、Issue the show arp command on Router A
• F、Issue the show arp command on Router B

第7题：

Which of the following statements is true about a router's eBGP peers that is not  also true about that same router's iBGP peers?（）

• A、The eBGP peer neighborship uses TCP
• B、The eBGP peer uses port 180 (default)
• C、The eBGP peer uses the same ASN as the local router
• D、The eBGP peer updates its AS_Path PA before sending updates to  this router

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第14题：

You administer a network that uses two routers， R1 and R2， configured as an HSRP group to  provide redundancy for the gateway. Router R1 is the active router and has been configured as  follows：   R1#configure terminal   R1（config）#interface fa0/0   R1（config-if）#ip address 10.10.0.5 255.255.255.0   R1（config-if）#standby 1 priority 150   R1（config-if）#standby preempt delay minimum 50   R1（config-if）#standby 1 track interface fa0/2 15   R1（config-if）#standby 1 ip 10.10.0.20   Which of the following describes the effect the standby preempt delay minimum 50 command will  have on router R1？（）

• A、 The HSRP priority for router R1 will increase to 200.
• B、 Router R1 will become the standby router if the priority drops below 50.
• C、 The HSRP priority for router R1 will decrease to 50 points when Fa0/2 goes down.  
• D、 Router R1 will wait 50 seconds before attempting to preempt the active router.

第15题：

A company has a Frame Relay WAN with one central - site router and 100 branch office routers. A partial mesh of PVCs exists: one PVC between the central site and each of t he 100 branch routers. All routers use point - to - point subinterfaces and one subnet per PVC. Which of the following is true about OSPF in this design?（）

• A、The central site router has 100 fully adjacent neighborships with the 100 branches
• B、The central  site router has neighborships with all branch routers, but fully adjacent neighbors with only two branches
• C、The central site router has a neighborship with the Frame Relay switcH
• D、None of the other answers is correct

第16题：

When BGP is used as the PE-CE routing protocol, which of these statements is correct?（）

• A、On the CE router, PE neighbors must be configured in the VRF context on the CE router
• B、On PE routers, the CE IBGP neighbors are configured in the global BGP configuration
• C、On PE routers, the CE EBGP neighbors are configured in the VRF context
• D、A separate BGP process must be used on the PE routers for CE routers so that they do not use the same BGP routing process as that used for the PE router's other provider neighbors

第17题：

两个电阻R1、R2串联在电路中，则有（）。

• A、I1＞I2
• B、I1＜I2
• C、I1＝I2
• D、I1≠I2

第18题：

Which one of the statements below correctly describes the Virtual Router Redundancy Protocol  （VRRP），  which is being used in the Company network to provide redundancy？（）

• A、 A VRRP group has one active and one or more standby virtual routers.
• B、 A VRRP group has one master and one or more backup virtual routers.
• C、 A VRRP group has one master and one redundant virtual router.
• D、 None of the other alternatives apply

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