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4

--------------- is/are used for error detection.

A. Parity bit

B. checksum

C. both A) and B)

D. neither A) nor B).

Correct Answer :

C. both A) and B)


Related Questions

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4

Select the standard for token ring using token-passing media access.

A. 802.2

B. 802.3

C. 802.5

D. 802.11(b)

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4

Class C network address class supports 65,534 hosts.

A. True.

B. False.

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4

Which of the following is a media type that is most susceptible to interference?

A. Shielded twisted pair (STP)

B. Fiber optics

C. Unshielded twisted pair (UTP)

D. Coaxial

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4

Which of the following algorithms are easy to implement and debug?

A. Hybrid algorithm

B. Path vector algorithm

C. Link state algorithm

D. Distance vector algorithms

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4

Which of these cable is/are used to connect devices to hubs and switches.

A. crossover

B. straight-through

C. co-axial

D. both A) and B)

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4

ADSL uses high-speed Internet service phone lines

A. True.

B. False.

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4

Thinnet coaxial cable uses what type of connector?

A. RJ-45

B. AUI

C. MSAU

D. BNC

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4

What is the pattern of a preamble?

A. 11110000

B. 11111111

C. 00000000

D. none of these

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4

What is 10baseT?

A. specification for twisted-pair cable

B. specification for cable terminators

C. 10 megawatt transceiver

D. 10 Mhz analog transfers

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4

What is attenuation?

A. cable noise

B. cable shortage

C. loss of signal strength

D. unwanted signals on the network

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4

Which of the following connectors is used by UTP on a Fast Ethernet network?

A. ST

B. BNC

C. RJ-45

D. RJ-11

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4

In TCP segment format _______indicates start of data.

A. RST

B. ACK

C. URG

D. Data Offset

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4

Which layer use User Datagram Protocol (UDP) and Transmission Control Protocol (TCP)?

A. Network layer

B. Physical layer

C. TCP/IP transport layer

D. Data link layer

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4

Which of the following is required to communicate between two computers?

A. Communications software

B. Protocol

C. Communication hardware

D. All of the above including access to transmission medium

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4

The network interface layer specifies how to organize data into………………………..and Internet layer specifies the format of …………………….. Sent across an Internet.

A. Bits, message.

B. frame,packet.

C. packet, messge.

D. datagram, packet.

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4

Which of the following is the IEEE specification for wireless networks?

A. 802.3

B. 802.5

C. 802.2

D. 802.11b

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4

At which layer of the OSI model do FTP, SMTP, POP3, and HTTP function?

A. Physical

B. Network

C. Transport

D. Application

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4

In which of the following states after selecting a mailbox, actions can be taken against the
mail within the mailbox?

A. Non-authenticated state

B. Authenticated state

C. Selected state

D. Logout state

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4

You have a network card with the connector in question 43, and it also has a 15 pin female connector, the pins being in two rows. What type of card is it?

A. ethernet

B. token ring

C. arcnet

D. dlc

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4

In FTP, to execute a file transfer, the user begins by _________.

A. Navigating the directory structure

B. Connecting to a remote host

C. Listing files available for transfer.

D. Defining the transfer mode

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4

In Secure Electronic Transaction, the description of the purchase and cost is contained in
________ message.

A. Authorization

B. Purchase order

C. Inquiry

D. Capture

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4

What is the default subnet mask for a class B network?

A. 255.0.0.0

B. 255.255.0.0

C. 255.255.255.0

D. 255.255.192.0

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4

Which of the following are not the standard representations defined by Telnet protocol?

A. IP and AO

B. YTA and WAY

C. EC and EL

D. SYNCH

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4

What is used to boost a digital signal?

A. amplifier

B. digi-booster

C. multiplexer

D. booster

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4

………………….is a technique of conversion between the representation of digital data in user equipment and the corresponding signals transmitted over a communications channel.

A. Line coding

B. Demodulation

C. Modulation

D. Segmentation

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4

At which layer of the OSI model do FTP, SMTP, POP3, and HTTP function?

A. Physical

B. Network

C. Transport

D. Application

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4

The idea of sharing one network address among the multiple physical networks can be done using the following technique:

A. Supernetting

B. Subnetting

C. Transparent router

D. Both b & c

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4

How many layers are there in the OSI model?

A. 4

B. 5

C. 6

D. 7

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4

ARP is defined in RFC _____ and it is a current internet standard, ________

A. RFC-37, STD 903

B. RFC-903, STD 37

C. RFC 826; STD 37

D. RFC 37; STD 826

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4

In 1996, 36.44% of _________ addresses were brought in use.

A. Class A

B. Class D

C. Class B

D. Class C