Question 1

What is the reason to use a stream cipher?

Accepted Answer

A stream cipher is designed to encrypt a...

Question 2

What does a security policy include?

Accepted Answer

Policies vary widely...

Question 3

Describe the problem of a buffer overflow.

Accepted Answer

The function strcpy() copies with no reg...

Question 4

Port scanning allows a hacker to__________________

Accepted Answer

A)   known users' passwords
B)   disrupt legitimate use of a system
C)   detect a system's vulnerabilities
D)   modify a transmission between a remote user and a systemE) A) and B)
F) All of the above

Question 5

To protect the systems we have to ensure security on the following level:

Accepted Answer

A)   physical
B)   network
C)   operating system
D)   all of the aboveE) All of the above
F) C) and D)

Question 6

It is much faster for a computer to encode and decode ciphertext by using the usual symmetric algorithms than by using asymmetric algorithms.

Accepted Answer

A) True 
 B)False  True

Question 7

A firewall is installed between the trusted and the untrusted.

Accepted Answer

A) True 
 B)False

Question 8

How are one-time password systems implemented?

Accepted Answer

One-time password systems are implemente...

Question 9

In a symmetric encryption algorithm, one key is used to encrypt and a different one is used to decrypt.

Accepted Answer

A) True 
 B)False

Question 10

Transport Layer Security (TLS) employs server's certificate from certification authority (CA).

Accepted Answer

A) True 
 B)False

Question 11

User authentication can be based on_______________

Accepted Answer

A)   the user's possession of something
B)   the user's knowledge of something
C)   an attribute of the user
D)   all of the aboveE) A) and C)
F) A) and D) B

Question 12

Why an asymmetric encryption algorithm uses two keys?

Accepted Answer

In an asymmetric encryption algorithm, t...

Question 13

MS Word documents in RTF format are resistant to macro viruses.

Accepted Answer

A) True 
 B)False  True

Question 14

The attack surface is the set of points at which an attacker can try to break into the system.

Accepted Answer

A) True 
 B)False

Question 15

When a user logs on, MW Windows 10 creates a list of files which can be used by the user.

Accepted Answer

A) True 
 B)False

Question 16

TLS provides security at the _______ layer.

Accepted Answer

A)   network
B)   transport
C)   application
D)   none of the aboveE) None of the above
F) A) and D)

Question 17

______________ virus changes each time it is installed to avoid detection by antivirus software.

Accepted Answer

A)   A polymorphic
B)   A source code
C)   An encrypted
D)   A macroE) None of the above
F) C) and D)

Question 18

Vulnerability scans can check:

Accepted Answer

A)   unexpected long-running processes
B)   hidden network daemons
C)   unauthorized programs in system directories
D)   all of the aboveE) B) and C)
F) C) and D)

Question 19

________________ encrypts the information on the target computer and renders it inaccessible to the owner

Accepted Answer

A)   Spyware
B)   Ransomware
C)   Logic bomb
D)   all of the aboveE) A) and D)
F) All of the above

Question 20

Describe the idea of masquerading attack.

Accepted Answer

During a masquerading, an atta...

Exam 16: Security

What is the reason to use a stream cipher?

Correct AnswerverifiedA stream cipher is designed to encrypt a...View AnswerShow Answer

What does a security policy include?

Correct AnswerverifiedPolicies vary widely...View AnswerShow Answer

Describe the problem of a buffer overflow.

Correct AnswerverifiedThe function strcpy() copies with no reg...View AnswerShow Answer

Port scanning allows a hacker to__________________

Correct AnswerverifiedShow Answer

To protect the systems we have to ensure security on the following level:

Correct AnswerverifiedShow Answer

It is much faster for a computer to encode and decode ciphertext by using the usual symmetric algorithms than by using asymmetric algorithms.

Correct AnswerverifiedTrue

A firewall is installed between the trusted and the untrusted.

Correct AnswerverifiedShow Answer

How are one-time password systems implemented?

Correct AnswerverifiedOne-time password systems are implemente...View AnswerShow Answer

In a symmetric encryption algorithm, one key is used to encrypt and a different one is used to decrypt.

Correct AnswerverifiedShow Answer

Transport Layer Security (TLS) employs server's certificate from certification authority (CA).

Correct AnswerverifiedShow Answer

User authentication can be based on_______________

Correct AnswerverifiedB

Why an asymmetric encryption algorithm uses two keys?

Correct AnswerverifiedIn an asymmetric encryption algorithm, t...View AnswerShow Answer

MS Word documents in RTF format are resistant to macro viruses.

Correct AnswerverifiedTrue

The attack surface is the set of points at which an attacker can try to break into the system.

Correct AnswerverifiedShow Answer

When a user logs on, MW Windows 10 creates a list of files which can be used by the user.

Correct AnswerverifiedShow Answer

TLS provides security at the _______ layer.

Correct AnswerverifiedShow Answer

______________ virus changes each time it is installed to avoid detection by antivirus software.

Correct AnswerverifiedShow Answer

Vulnerability scans can check:

Correct AnswerverifiedShow Answer

________________ encrypts the information on the target computer and renders it inaccessible to the owner

Correct AnswerverifiedShow Answer

Describe the idea of masquerading attack.

Correct AnswerverifiedDuring a masquerading, an atta...View AnswerShow Answer

Correct Answer
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A stream cipher is designed to encrypt a...
View Answer

Correct Answer
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Policies vary widely...
View Answer

Correct Answer
verified
The function strcpy() copies with no reg...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
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True

Correct Answer
verified

Correct Answer
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One-time password systems are implemente...
View Answer

Correct Answer
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Correct Answer
verified

Correct Answer
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B

Correct Answer
verified
In an asymmetric encryption algorithm, t...
View Answer

Correct Answer
verified
True

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
During a masquerading, an atta...
View Answer