The increase in signal from 94.6 to 94.75, represents which concept in radio signalingComputer Network

multiple-choice questions

The increase in signal from 94.6 to 94.75, represents which concept in radio signaling:

 

A.

Bandwidth

 

B.

Gain

 

C.

Bit rate

 

D.

802.11

 

E.

802.3

 

Which of the following is true about the antenna above?

 

A.

It focuses its signal in a narrow range

 

B.

It has rapid signal attenuation

 

C.

It does not need to be pointed at a reciever

 

D.

Signal spreads in all directions (omnidirectional)

 

E.

It is not used for radio communication

802.11’s 2.4GHz and 5GHz frequency bands are considered:

 

A.

Unlicensed radio bands

 

B.

Licensed radio bands

 

C.

FM

 

D.

AM

 

E.

UHF

Which network management command is the most dangerous in security terms?

 

A.

SET

 

B.

GET

 

C.

PUT

 

D.

PUSH

 

E.

PULL

An IPv4 mask is a 32-bit string of 1s and 0s. A /8 mask means:

 

A.

The last 32 bits of the IPv4 address are 0's

 

B.

The first 8 bits of the IPv4 address are 1's

 

C.

The first 8 bits of the IPv4 address are 0's

 

D.

The first 32 bits of the IPv4 address are 1's

 

E.

The last 8 bits of the IPv4 address are 1's

A passphrase is considered one of the most secure passwords.

 True  False

As frequencies get higher (e.g., 2.4GHz to 5GHz), signal attenuation over distance:

 

A.

Increases faster

 

B.

Decreases faster

 

C.

Remains neutral

 

D.

Propagates Faster

 

E.

Does nothing

Why do most switches run Spanning Tree Protocol by default?

 

A.

It monitors how the network is functioning

 

B.

It manages the VLAN database

 

C.

It prevents switching loops

 

D.

It provides connections between border gateways

 

E.

It stops data from forwarding until all devices are updated

 

How many non-overlapping frequency bands does 2.4 GHz service band in 802.11 have?

 

A.

3

 

B.

5

 

C.

7

 

D.

32

 

E.

68

 

 

How many slave devices can a master have in Bluetooth?

 

A.

1

 

B.

2

 

C.

5

 

D.

6

 

E.

7

 

 

If a network mask of 255.128.0.0 is applied to 128.171.0.0 what are the number of bits in the network part (Excel might come in handy)?

 

A.

9

 

B.

12

 

C.

16

 

D.

37

 

E.

42

If Access Point A is on Channel 1, Access Point B on Channel 6, Access Point C on Channel 11, and Access Point D on Channel 4 and all are in proximity with each other. Which will cause interference?

 

A.

Access Points B and D

 

B.

Access Points A and B

 

C.

Access Points A and C

 

D.

Access Pooints B and C

 

E.

No access points will cause interference because they are all on different channels.

In IPv4 the version number is represented by what bits at the beginning of the IP header?

 

A.

0100

 

B.

1000

 

C.

1110

 

D.

0110

 

E.

0011

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Gabriel
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