Data Communication and Networking Questions

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471.

Which of the following TCP/IP protocol is used for remote terminal connection service?

A

TELNET

B

FTP

C

RARP

D

UDP

E

None of the above

Correct Answer: A

None.

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472.

Networks where end user workstations are tied to LAN servers to share resources and application processing.

A

Internetworked enterprise

B

Information super highway

C

Business applications of telecommunications

D

Client/Server networks

Correct Answer: D

None.

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473.

The frequency range : 300 kHz to 3 MHz is used for

A

AM radio transmission

B

FM radio transmission

C

TV transmission

D

microwave communications, satellite and radar

E

None of the above

Correct Answer: A

None.

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474.

With an IP address of 201.142.23.12, what is your default subnet mask?

A

0.0.0.0

B

255.0.0.0

C

255.255.0.0

D

255.255.255.0

E

None of the above

Correct Answer: D

None.

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475.

A smart modem can dial, hang up and answer incoming calls automatically. Can you tell who provides the appropriate instruction to the modem for this purpose?

A

Communications software

B

Error detecting protocols

C

Link access procedure (LAP)

D

Telecommunications

E

None of the above

Correct Answer: A

None.

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476.

IEEE project 802 divides the data link layer into an upper _____ sublayer and a lower _____ sublayer.

A

HDLC, PDU

B

PDU, HDLC

C

MAC, LLC

D

LLC, MAC

E

None of the above

Correct Answer: D

None.

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477.

Two computers that communicate with each other use a simple parity check to detect errors for ASCII transmissions. Which of the following events will always lead to an undeleted error?

A

one bit or any odd number of bits inverted in a block of data during transmission

B

two bits or any even number of bits inverted in a block during transmission

C

one bit or any odd number of bits inverted in a byte during transmission

D

two bits or any even number of bits inverted in a byte during transmission

E

None of the above

Correct Answer: D

None.

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478.

Which utility is an all-purpose tool for troubleshooting TCP/IP problems?

A

NBTSTAT

B

Netstat

C

PING

D

Hostname

E

None of the above

Correct Answer: C

None.

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479.

In communication satellite, multiple repeaters are known as

A

detector

B

modulator

C

stations

D

transponders

E

None of the above

Correct Answer: D

None.

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480.

Which protocol provides e-mail facility among different hosts?

A

FTP

B

SMTP

C

TELNET

D

SNMP

E

None of these

Correct Answer: B

SMTP (Simple Mail Transfer Protocol) is a TCP/IP protocol used in sending and receiving e-mail. However, since it is limited in its ability to queue messages at the receiving end, it is usually used with one of two other protocols, POP3 or IMAP that let the user save messages in a server mailbox and download them periodically from the server. SMTP usually is implemented to operate over Internet port 25. Many mail servers now support Extended Simple Mail Transfer Protocol (ESMTP), which allows multimedia files to be delivered as e-mail.

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