Router R1 has the following configuration. Assuming R1‘s F0／0 interface has a MAC address

第1题：

第2题：

Host 1 sends a request for a file to remote sever1. Which destination address does Host 1 place f the packet containing the request（）。

• A、The Mac address of the NIC in Sever1
• B、The IP address of Server 1.
• C、The MAC address of the s0/0/0 interface of router R2
• D、The IP address of the s0/0/0 interface of router R1
• E、The IP address of the Fa0/0 interface of router R1

第3题：

第4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

第5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6题：

第7题：

Router R1 has a connected route for 10.1.1.0/24 off interface Fa0/0. Interface Fa0/0 has been enabled for OSPF due to a router ospf 1 and network 10.0.0.0 0.0.0.255 area 0 command. R1 also has EIGRP configured, with the redistribute ospf 1 metric 1000 100 10 1 1500 command configured under EIGRP. Which one of the following is true?（）

• A、R1 will not redistribute 10.1.1.0/24 into EIGRP, because R1 knows it as a connected route and not as an OSPF route.
• B、For any OS PF routes redistributed into EIGRP, the metric components includea value equivalent to 1 Mbps of bandwidth.
• C、For any OSPF routes redistributed into EIGRP, the metric components include a value equivalent to 100 microseconds of delay.
• D、No subnets of network 10.0.0.0 will be redistributed due to the omission of the subnets parameter.

第8题：

第9题：

Host 1 sends an ICMP echo request to remote sever1. Layer2 header of the frame containing the ping packet（）。

• A、The IP address of sever 1.
• B、The MAC address of NIC in sever 1.
• C、The IP address of F0/0 interface of router R1.
• D、The MAC address of the Fa0/0 interface of router R1.
• E、The IP address of the s0/0/0 interface of router R2
• F、The MAC address of the s0/0/0 interface of router R2

第10题：

Router R1, an ASBR connected to the Internet and to backbone area 0, has been configured with a default - information originate command. Which of the following is true about the effects of this configuration command?（）

• A、R1 will always create and flood a default route into the OSPF domain.
• B、R1 will create and flood an LSA for prefix/length 0.0. 0.0/0 into the OSPF domain if R1's IP routing table has a route to 0.0.0.0/0.
• C、R1 will set a flag on the LSA for the subnet between itself and one of the ISPs, noting this subnet as a default network, regardless of whether R1 has a default route.
• D、R1 w ill set a flag on the LSA for the subnet between itself and one of the ISPs, noting this subnet as a default network, but only if R1 has a route to 0.0.0.0/0.