Matematicas

Final Exam
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.
* Use the ping 127.0.0.1 command at the command prompt.
Use the traceroute command atthe 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
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Refer to the exhibit. Which set ofdevices contains only intermediary devices?
* 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?
* only computer D
only computer A and computer D
only computer B, computer C, and computer D
all computers
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4 Which password is automatically encrypted when it is created?
vty
aux
console
* enable secret
enable password
5 Which three statements characterize the transport layer protocols? (Choose three.)
* TCP and UDP port numbers are used by application layer protocols.
TCP uses port numbers to provide reliabletransportation of IP packets.
UDP uses windowing and acknowledgments for reliable transfer of data.
* TCP uses windowing and sequencing to provide reliable transfer of data.
* TCP is a connection-oriented protocol. UDP is a connectionless protocol.
6 Which type of media is immune to EMI and RFI? (Choose two.)
10 Base-T
10 Base-2
10 Base-5
* 100 Base-FX
100 Base TX
* 1000 Base LX
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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?
127.0.0.1192.168.64.196
* 192.168.254.1
192.168.254.9
192.168.254.254
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.MUAhttp://elmaestrodelared.blogspot.com
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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
* 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 inthis network?
* address translation
DHCP services
ftpd
web server
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
* issue the no shutdown command on interfaceFastEthernet 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.)
* 172.16.4.63 /26
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