CCNA题库6_ccna中文题库
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CCNA题库6（没有写answer的题目，淡蓝色的选项为答案）
76.Which command would correctly configure a serial port on a router with the last usable host addre in the 192.216.32.32/29 subnet?
A.router(config-if)# ip addre 192.216.32.38 255.255.255.240 B.router(config-if)# ip addre 192.216.32.39 255.255.255.224 C.router(config-if)# ip addre 192.216.32.63 255.255.255.248 D.router(config-if)# ip addre 192.216.32.39 255.255.255.248 E.router(config-if)# ip addre 192.216.32.63 255.255.255.248 F.router(config-if)# ip addre 192.216.32.38 255.255.255.248
77.The network default gateway applying to a host by DHCP is 192.168.5.33/28.Which option is the valid IP addre of this host? A.192.168.5.55 B.192.168.5.47 C.192.168.5.40 D.192.168.5.32 E.192.168.5.14
78.Which two addrees can be aigned to a host with a subnet mask of 255.255.254.0?(Choose two.)A.113.10.4.0 B.186.54.3.0 C.175.33.3.255 D.26.35.2.255 E.17.35.36.0
79.The network administrator has asked you to check the status of the workstation's IP stack by pinging the loopback addre.Which addre would you ping to perform this task?
A.10.1.1.1 B.127.0.0.1 C.192.168.0.1 D.239.1.1.1
80.Workstation A has been aigned an IP addre of 192.0.2.24/28.Workstation B has been aigned an IP addre of 192.0.2.100/28.The two workstations are connected with a straight-through cable.Attempts to ping between the hosts are unsucceful.What two things can be done to allow communications between the hosts?(Choose two.)A.Replace the straight-through cable with a croover cable.B.Change the subnetmask of the hosts to /25.C.Change the subnet mask of the hosts to /26.D.Change the addre of WorkstationA to 192.0.2.15.E.Change the addre of Workstation B to 192.0.2.111.81.Your ISP has given you the addre 223.5.14.6/29 to aign to your router's interface.They have also given you the default gateway addre of 223.5.14.7.After you have configured the addre, the router is unable to ping any remote devices.What is preventing the router from pinging remote devices? A.The default gateway is not an addre on this subnet.B.The default gateway is the broadcast addre for this subnet.C.The IP addre is the broadcast addre for this subnet.D.The IP addre is an invalid cla D multicast addre.82.Which command is used to copy the configuration from RAM into NVRAM? A.copy running-config startup-config B.copy startup-config: running-config C.copy running config startup config D.copy startup config running config E.write terminal
83.Which command is used to load a configuration from a TFTP server and merge the configuration into RAM?
A.copy running-config: TFTP: B.copy TFTP: running-config C.copy TFTP: startup-config D.copy startup-config: TFTP:
84.A system administrator types the command to change the hostname of a router.Where on the Cisco
IFS is that change stored? A.NVRAM B.RAM
C.FLASH D.ROM E.PCMCIA
85.Which command is used to configure a default route? A.ip route 172.16.1.0 255.255.255.0 0.0.0.0 B.ip route 172.16.1.0 255.255.255.0 172.16.2.1 C.ip route 0.0.0.0 255.255.255.0 172.16.2.1 D.ip route 0.0.0.0 0.0.0.0 172.16.2.1
86.If IP routing is enabled, which two commands set the gateway of last resort to the default gateway?(Choose two.)A.ip default-gateway 0.0.0.0
B.ip route 172.16.2.1 0.0.0.0 0.0.0.0 C.ip default-network 0.0.0.0
D.ip default-route 0.0.0.0 0.0.0.0 172.16.2.1 E.ip route 0.0.0.0 0.0.0.0 172.16.2.1 87.Which command is used to see the path taken by packets acro an IP network? A.show ip route B.show route C.traceroute D.trace ip route
88.Which command is used to debug a ping command? A.debug icmp B.debug ip icmp C.debug tcp D.debug packet
89.Which command displaysCPU utilization? A.show protocols B.show proce C.show system D.show version
90.What must be set correctly when configuring a serial interface so that higher-level protocols calculate the best route? A.bandwidth B.delay C.load D.reliability
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