Prelims (2024)

Question 1

Physical or logical arrangement of network is _______.

Answer 1

Topology

Question 2

Network topology requires a central controller or hub is _______.

Answer 2

Star

Question 3

Topology that requires a multipoint connection is _______.

Answer 3

Bus

Question 4

Data communication system spanning states, countries, or the whole world is _______.

Answer 4

WAN

Question 5

Data communication system within a building or campus is _______.

Answer 5

LAN

Question 6

WAN stands for _______.

Answer 6

Wide Area Network

Question 7

In TDM, slots are further divided into _______.

Answer 7

Frames

Question 8

_______ is the multiplexing technique that shifts each signal into a different carrier frequency.

Answer 8

FDM

Question 9

_______ topology that is responsible for describing the geometric arrangement of components that make up the LAN.

Answer 9

Physical

Question 10

_______ topology describes the possible connections between pairs of networked end-points that can communicate.

Answer 10

Logical

Question 11

A network comprising of multiple topologies is _______.

Answer 11

Hybrid

Question 12

The participating computers in a network are referred to as _______.

Answer 12

Nodes

Question 13

A topology that involves Tokens is _______.

Answer 13

Ring

Question 14

A _______ WAN can be developed using leased private lines or any other transmission facility.

Answer 14

Peer-to-Peer

Question 15

A serially connected system of all the hubs of networks is _______.

Answer 15

Daisy Chain

Question 16

A piece of information which is sent along with the data to the source computer is _______.

Answer 16

Token

Question 17

The configuration, in which all the processing elements are connected to a central switching element, that may be independent processor via dedicated paths is _______.

Answer 17

Star

Question 18

In a _______ relationship, one device controls traffic and the others must transmit through it.

Answer 18

Primary-Secondary

Question 19

Devices in a ring or mesh topology are usually configured in a _______ relationship.

Answer 19

Peer-to-Peer

Question 20

The line configuration between devices in a mesh topology is _______.

Answer 20

Point-to-Point

Question 21

Seven devices are arranged in a mesh topology. _______ physical channels link these devices.

Answer 21

n(n-1)/2 = 21

Question 22

Forty-five physical channels link _______ devices arranged in a mesh topology.

Answer 22

10

Question 23

When nine devices are arranged in a mesh topology, each device needs _______ input/output ports.

Answer 23

8

Question 24

When _______ devices are arranged in a mesh topology, each device needs six input/output ports.

Answer 24

7

Question 25

In a mesh topology with n devices, if a new device is added, _______ new links are needed.

Answer 25

n-1

Question 26

In a _______ topology, a device connects to a device (non-central controller) needs only one input/output port.

Answer 26

Star

Question 27

A _______ topology is a variation of a star topology.

Answer 27

Tree

Question 28

In a _______ topology, a secondary hub can connect to a central hub.

Answer 28

Tree

Question 29

The central hub in a tree topology contains a _______ to regenerate the received data.

Answer 29

Repeater

Question 30

A bus topology has a _______ configuration.

Answer 30

Multipoint

Question 31

In a _______ topology, drop lines and taps are used to connect devices to a backbone.

Answer 31

Bus

Question 32

In a bus topology, a _______ is a link between a device and the backbone.

Answer 32

Drop-line

Question 33

Signal reflection at the taps can cause signal degradation in a _______ topology.

Answer 33

Bus

Question 34

Topology is a combination of several different topologies is called _______.

Answer 34

Hybrid

Question 35

Invented the first successful and practical data communications system which he called the Telegraph.

Answer 35

Samuel Morse

Question 36

_______ refers to the structure or format of the data, the order in which they are presented.

Answer 36

Syntax

Question 37

_______ refers to the meaning of each section of bits.

Answer 37

Semantics

Question 38

_______ refers to when data should be sent and how fast the data can be sent.

Answer 38

Timing

Question 39

A protocol that specifies that the receiver address occupy the first byte of the data packet differs in _______ from a protocol that specifies that the receiver address occupy the third byte of the data packet.

Answer 39

Syntax

Question 40

Proprietary and non-proprietary standards are both classified as _______ standards.

Answer 40

De Facto

Question 41

A _______ standard has been legislated by an officially recognized body.

Answer 41

De Facto

Question 42

A _______ standard is one originally developed by a group or committee that has passed it into the public domain.

Answer 42

De Jure

Question 43

A _______ standard is often referred to as a closed standard because it closes off communication between systems produced by different vendors.

Answer 43

Non Proprietary

Question 44

The ITU-T was formerly known as the _______.

Answer 44

CCITT

Question 45

The V series and X series are standards developed by _______.

Answer 45

ITU-T

Question 46

Standards for ISDN are developed by _______.

Answer 46

ITU-T

Question 47

_______ a large international community of network designers, operators, vendors and researchers concerned with the evolution of the Internet architecture and smooth operation of the Internet.

Answer 47

IETF

Question 48

_______ a non-profit U.S. trade association that establishes and recommends industrial standards.

Answer 48

EIA

Question 49

_______ a completely private, non-profit organization comprised of equipment manufacturers and users of data processing equipment and services.

Answer 49

ANSI

Question 50

_______ is comprised mainly of members from the standards committee of various governments throughout the world. It is even responsible for developing models which provides high level of system compatibility, quality enhancement, improved productivity and reduced costs.

Answer 50

ISO