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Three logical address ranges are required.
1What are three characteristics of CSMA/CD? (Choose three.)
9
It monitors the media for presence of a data signal.
After detecting a collision, hosts can resume transmission after a random timer has expired.
A jam signal is used to ensure that all hosts are aware that a collision has occurred.
Devices can be configured with a higher transmission priority.
Data is transmitted only when the data signal is present.
It uses a token system to avoid collisions.
20
Refer to the exhibit. The serial interface of the router was configured with the use of the commands that are showproblem?
Configure the description at interface serial 0/0/0.
Configure an IP address on interface serial 0/0/0.
Remove the no shutdown command at interface serial 0/0/0
Reboot the router.
cannot ping the router that is directly connected to interface serial 0/0/0. What should the network technician do
2Which OSI layer uses the header information to reassemble the data segments into streams?
1
application layer
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network layer
presentation layer
session layer
transport layer
22
Refer to the exhibit. The NAT functionality of the router is enabled to provide Internet access to the PC. However,
unable to access the Internet. Which IP address should be changed to 209.165.201.1 to enable the PC to access
192.168.1.191
192.168.1.101
192.168.1.1
192.168.1.254
2
3
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Refer to the exhibit. A technician uses the nslookup command on the PC and views the output that is displayed iWhat is the IP address of the primary domain name server used by the host?
10.10.10.32
192.168.1.5
192.168.1.99
192.168.2.100
24 Which memory contents will change as a result of using the Router# erase startup-config command on a route
RAM ROM flash NVRAM
2While configuring a router, a network technician wants to name the router. Which prompt should the technician
_
5
entering the hostname command?
Router> Router#
Router(config)#
Router(config-line)#
26
interface does the IP address 192.168.1.254 belong?
PC switch
router interface fa0/0
router interface fa0/1
Refer to the exhibit. The PC, the routing table of which is displayed, is configured correctly. To which network de
2
7
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the problem, which wire pairs need to be switched on one of the Ethernet cable ends?
pair 1 and pair 2
pair 1 and pair 3
pair 2 and pair 3
pair 2 and pair 4
Refer to the exhibit. A network administrator is troubleshooting a link that is down between Router1 and Router
28
Refer to the exhibit. A PC is connected to a network. Which action will verify that the PC can communicate with igateway?
思科第一学期期末考试全部整合考题CCNA1
