True/False Questions

Question 1

Attenuation is the weakening of a signal over a distance

Answer 1

T

Question 2

In Connection-oriented service, it required to set up a connection (path) first and then transfer data.

Answer 2

T

Question 3

ADSL technology provides lower data rates than VDSL technology.

Answer 3

T

Question 4

ATM is a connection-less protocol.

Answer 4

F

Question 5

Partial-Mesh is the usually the best option to connect cities in a country.

Answer 5

T

Question 6

LEO satellites have more propagation delays than MEO satellites.

Answer 6

F

Question 7

Stop-and-Wait ARQ is a half-duplex technique.

Answer 7

T

Question 8

In Circuit switching, each packet is treated independently of all others.

Answer 8

F

Question 9

Wireless uses a contention-based media access control technique called Carrier Sense Multiple Access with Collision Detection (CSMA/CD).

Answer 9

F

Question 10

Parity checking can detect single bit errors but cannot correct any errors.

Answer 10

T

Question 11

Geo satellites require less power than LEO and MEO satellites.

Answer 11

F

Question 12

Wireless Local Area Networks require an Access Point.

Answer 12

T

Question 13

ADSL provides different data rate to and from the service provider.

Answer 13

T

Question 14

CRC16 is a better error detecting method than CRC32.

Answer 14

F

Question 15

Hubs operate in the Data link layer in the OSI reference model.

Answer 15

F

Hubs operate on Layer 1 the Physical Layer.

Question 16

Broadband (ADSL) is an example of Packet switching.

Answer 16

T

Question 17

IEEE802.3 is also known as Token Ring Protocol.

Answer 17

F
IEEE802.5 is the Token Ring Protocol.
IEEE802.3 is for Ethernet.

Question 18

Frequency Division Multiplexing is better than Time Division Multiplexing.

Answer 18

F

Question 19

Wireless networks use CSMA/CD as the media access method.

Answer 19

F

Question 20

LRC is a better error detecting method than CRC.

Answer 20

F

Question 21

Signal to noise ratio is a measure of the quality of communication link.

Answer 21

T

Question 22

Routers operate in the transport layer in the OSI reference model.

Answer 22

F

Routers operate on Level 3 - Network Layer of the OSI model.

Question 23

ATM is a connection-oriented protocol.

Answer 23

T

Question 24

IEEE802.11x defines wireless network standards.

Answer 24

T

Question 25

In wireless networks, RTS and CTS signals are used for direction finding.

Answer 25

F

Question 26

Leo satellites have less propagation delays than MEO satellites.

Answer 26

T