vào lúc 7:55 PM ·
Take Assessment - ENetwork Final Exam - Network Fundamentals (Version 4.0)
Updated March 11th 2009
1 A PC can not connect to any remote websites, ping its default gateway, or ping a printer that is functioning properly on the local network segment. Which action will verify that the TCP/IP stack is functioning correctly on this PC?
Use the ipconfig /all command at the host�s command prompt. X Use the ping 127.0.0.1 command at the command prompt.
Use the traceroute command at the command prompt to identify any failures on the path to the gateway. Use FTP to check for connectivity to remote sites.
Download a troubleshooting tool from the PC manufacturer's website.
2 Refer to the exhibit. Which set of devices contains only intermediary devices?
X A, B, D, G
A, B, E, F
C, D, G, I
G, H, I, J
3 Refer to the exhibit. When computer A sends a frame to computer D, what computers receive the frame?
X only computer D
only computer A and computer D
only computer B, computer C, and computer D
4 Which password is automatically encrypted when it is created?
X enable secret
5 Which three statements characterize the transport layer protocols? (Choose three.)
X TCP and UDP port numbers are used by application layer protocols. TCP uses port numbers to provide reliable transportation of IP packets. UDP uses windowing and acknowledgments for reliable transfer of data. X TCP uses windowing and sequencing to provide reliable transfer of data. X TCP is a connection-oriented protocol. UDP is a connectionless protocol.
6 Which type of media is immune to EMI and RFI? (Choose two.)
X 100 Base-FX
100 Base TX
X 1000 Base LX
7 Refer to the exhibit. A technician is working on a network problem that requires verification of the router LAN interface. What address should be pinged from this host to confirm that the router interface is operational?
8 Refer to the exhibit. The diagram represents the process of sending email between clients. Select the list below that correctly identifies the component or protocol used at each numbered stage of the diagram.
1.MUA 2.MDA 3.MTA 4.SMTP 5.MTA 6.POP 7.MDA 8.MUA
1.MUA 2.POP 3.MDA 4.SMTP 5.MTA 6.MDA 7.SMTP 8.MUA
1.MUA 2.POP 3.SMTP 4.MDA 5.MTA 6.SMTP 7.POP 8.MUA
1.MDA 2.SMTP 3.MTA 4.SMTP 5.MTA 6.MUA 7.POP 8.MDA
X 1.MUA 2.SMTP 3.MTA 4.SMTP 5.MTA 6.MDA 7.POP 8.MUA
9 Refer to the exhibit. What function does router RT_A need to provide to allow Internet access for hosts in this network?
X address translation
10 Refer to the exhibit. The network containing router B is experiencing problems. A network associate has isolated the issue in this network to router B? What action can be preformed to correct the network issue?
issue the ip address command on interface FastEthernet 0/0
X issue the no shutdown command on interface FastEthernet 0/1 issue the clock rate command on interface Serial 0/0/0
issue the description command on interface Serial 0/0/1
11 Which three IPv4 addresses represent a broadcast for a subnet? (Choose three.)
X 172.16.4.63 /26
X 172.16.4.191 /26
X 172.16.4.95 /27
12 What are three characteristics of CSMA/CD? (Choose three.)
Devices can be configured with a higher transmission priority. A jam signal indicates that the collision has cleared and the media is not busy. X A device listens and waits until the media is not busy before transmitting. The device with the electronic token is the only one that can transmit after a collision. X All of the devices on a segment see data that passes on the network medium. X After detecting a collision, hosts can attempt to resume transmission after a random...