wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Introduction to Data Communications

Total questions: 30

Worksheet time: 15mins

Name
Class
Date
1.

_____ are rules that govern a communication exchange

a)

media

b)

criteria

c)

protocols

d)

OSI

2.

The ______ is the physical path over which a message travels

a)

protocol

b)

medium

c)

signal

d)

wire

3.

Frequency of failure and network recovery time after a failure are measures of the ____of a network

a)

performance

b)

reliability

c)

security

d)

feasibility

4.

The performance of a data communications network depends on ____

a)

the number of users

b)

the transmission media

c)

the hardware and software

d)

all of the above

5.

Viruses are a network ____ issue

a)

performance

b)

reliability

c)

security

d)

economic viability

6.

Which agency created standards for telephone communications and for network interfaces and public networks?

a)

AT&T

b)

ITU-T

c)

ANSI

d)

ISO

7.

The information to be communicated in a data communication system is the ____

a)

medium

b)

protocol

c)

message

d)

transmission

8.

_____ is the division of one task among multiple computers

a)

distributed processing

b)

distributed messaging

c)

distributed telephony

d)

Electronic messaging

9.

If a protocol specifies that data should be sent at 100 Mbps, this is a ___ issue.

a)

syntax

b)

semantics

c)

timing

d)

none of the above

10.

When a protocol specifies that the address of the sender must occupy the first four bytes of a message, this is a ___ issue.

a)

syntax

b)

semantics

c)

timing

d)

none of the answers

11.

Which topology requires a central controller or hub?

a)

mesh

b)

star

c)

bus

d)

ring

12.

Which topology requires a multipoint connection?

a)

mesh

b)

star

c)

bus

d)

ring

13.

Communication between a computer and a keyboard involves ____

a)

simplex

b)

half-duplex

c)

full-duplex

d)

automatic

14.

In a network with 25 computers, which topology would require the most extensive cabling?

a)

mesh

b)

star

c)

bus

d)

ring

15.

A tree topology is a variation of a ___ topology.

a)

mesh

b)

star

c)

bus

d)

ring

16.

A television broadcast is an example of ____transmission

a)

simplex

b)

half-duplex

c)

full-duplex

d)

automatic

17.

In a ____ topology, if there are n devices in a network, each device has a n - 1 ports for cables

a)

mesh

b)

star

c)

bus

d)

ring

18.

A ___ connection provides a dedicated link between two devices

a)

point-to-point

b)

multipoint

c)

primary

d)

secondary

19.

In a _____ connection, more than two devices can share a single link

a)

point-to-point

b)

multipoint

c)

primary

d)

secondary

20.

In _____ transmission, the channel capacity is shared by both communicating devices at all times

a)

simplex

b)

half-duplex

c)

full-duplex

d)

half-simplex

21.

Duwi Publishing, with headquarters in Manila and branch offices in Lipa City and throughout South-East Asia, China and the USA, is probably connected by a _______.

a)

LAN

b)

MAN

c)

PAN

d)

WAN

22.

Keeler Plumbing has a network consisting of two workstations and one printer. This is most probably a ______

a)

PAN

b)

WAN

c)

LAN

d)

MAN

23.

Which topology features a point-to-point configuration?

a)

mesh

b)

ring

c)

star

d)

all of the choices

24.

In a ___ the link, the only traffic is between the two connected devices.

a)

secondary

b)

primary

c)

dedicated

d)

public

25.

In a mesh topology, the relationship between the device and another is _____

a)

primary-to-peer

b)

peer-to-primary

c)

primary-to-secondary

d)

peer-to-peer

26.

A cable break in a _______ topology stops all transmission

a)

mesh

b)

star

c)

bus

d)

primary

27.

A network that contains multiple hubs is most likely configured in a ________ topology

a)

mesh

b)

tree

c)

bus

d)

star

28.

Security and privacy are less of an issue for devices in a _______ topology.

a)

mesh

b)

tree

c)

bus

d)

star

29.

The _____ model shows how the network functions of a computer ought to be organized

a)

ITU-T

b)

OSI

c)

ISO

d)

ANSI

30.

The OSI model consists of ______ layers

a)

three

b)

five

c)

seven

d)

eight