Protection and Security Questions

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21.

Which mechanism is used by worm process?

A

Trap door

B

Fake process

C

Spawn Process

D

VAX process

Correct Answer: C

None.

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22.

Which of the following is not a characteristic of a virus?

A

Virus destroy and modify user data

B

Virus is a standalone program

C

Virus is a code embedded in a legitimate program

D

Virus cannot be detected

Correct Answer: D

Virus can be detected by having an antivirus program.

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23.

What is known as masquerading?

A

When one participant in communication pretends to be someone else

B

When attacker modifies data in communication

C

When attack is of fraudulent repeat of a valid data

D

When attack gains access to remote systems

Correct Answer: A

None.

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24.

Who unleashed famous worm attack in 1988 which effected UNIX systems and caused losses in millions?

A

Robert Morris

B

Bob Milano

C

Mark zuckerberg

D

Bill Gates

Correct Answer: A

None.

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25.

What is port scanning?

A

It is a software used to scan system for attack

B

It is a software application designed to probe a server or host for open ports

C

It is software used to scan system for introducing attacks by brute force

D

None of the mentioned

Correct Answer: B

None.

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26.

Which is not a port scan type?

A

TCP scanning

B

SYN scanning

C

UDP scanning

D

SYSTEM Scanning

Correct Answer: D

None.

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27.

Which is not a valid port scan type?

A

ACK scanning

B

Window scanning

C

IGMP scan

D

FIN scanning

Correct Answer: C

None.

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28.

What are zombie systems?

A

Are specific system which are designed to attack by manufacturer

B

They are network of known hacking group

C

These systems are previously compromised independent systems

D

None of the mentioned

Correct Answer: C

None.

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29.

What is known as a DOS attack?

A

It is attacked to block traffic of network

B

It is attacked to harm contents stored in HDD by worm spawn processes

C

It is an attempt to make a machine or network resource unavailable

D

None of the mentioned

Correct Answer: C

None.

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30.

With regard to DOS attack what is not true from below options?

A

We can stop DOS attack completely

B

By upgrading OS vulnerability we can stop DOS attack to some extent

C

DOS attack has to be stopped at network level

D

Such attack can last for hours

Correct Answer: A

None.

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