Computer Network Mcqs

Page No. 14

The DoS attack, in which the attacker sends deluge of packets to the targeted host is ________


aVulnerability attack

✖


bBandwidth flooding

✓


cConnection flooding

✖


dUDP flooding

✖


View Answer Bandwidth flooding

The DoS attack, in which the attacker establishes a large number of half-open or fully open TCP connections at the target host is ________


aVulnerability attack

✖


bBandwidth flooding

✖


cConnection flooding

✓


dUDP flooding

✖


View Answer Connection flooding

Which of the following is a form of DoS attack?


aVulnerability attack

✖


bBandwidth flooding

✖


cConnection flooding

✖


dAll of the mentioned

✓


View Answer All of the mentioned

The attacker using a network of compromised devices is known as _____________


a Internet

✖


bBotnet

✓


cTelnet

✖


dD-net

✖


View Answer Botnet

Geostationary satellites ___________


aAre placed at a fixed point above the earth

✓


bRotate the earth about a fixed axis

✖


cRotate the earth about a varying axis

✖


dAll of the mentioned

✖



Radio channels are attractive medium because __________


aCan penetrate walls

✖


bConnectivity can be given to mobile user

✖


cCan carry signals for long distance

✖


dAll of the mentioned

✓


View Answer All of the mentioned

Terrestrial radio channels are broadly classifed into _____ groups.


a2

✖


b3

✓


c4

✖


d1

✖


View Answer 3

If an Optical Carrier is represented as OC-n, generally the link speed equals(in Mbps) __________


an*39.8

✖


bn*51.8

✓


c2n*51.8

✖


dNone of the mentioned

✖


View Answer n*51.8

Fiber optics posses following properties __________


aImmune electromagnetic interference

✖


bVery less signal attenuation

✖


cVery hard to tap

✖


dAll of the mentioned

✓


View Answer All of the mentioned

Coaxial cable consists of _______ concentric copper conductors.


a1

✖


b2

✓


c3

✖


d4

✖


View Answer 2

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