Question 1

Vulnerabilities are occasionally found in even the best security products.Consequently,companies must ________.

Accepted Answer

A)  have comprehensive security
B)  have defense in depth
C)  do risk analysis
D)  only give minimum permissions

Question 2

A password that can be defeated by a hybrid dictionary attack can be adequately long if it ________.

Accepted Answer

A)  can only be broken by a brute force-attack
B)  is sufficiently long
C)  begins with a capital letter and ends with a digit (number) 
D)  none of the above

Question 3

In symmetric key encryption,a key must be ________ bits long or longer to be considered strong.(Choose the choice closest to the correct answer.)

Accepted Answer

A)  40
B)  56
C)  128
D)  1,024

Question 4

Malware programs that masquerade as system files are called ________.

Accepted Answer

A)  viruses
B)  scripts
C)  payloads
D)  Trojan horses

Question 5

Hackers identify possible victim computers by sending ________.

Accepted Answer

A)  scouts
B)  probe packets
C)  exploits
D)  Mocking Jays

Question 6

When a packet that is part of an ongoing connection arrives at a stateful inspection firewall,the firewall usually ________.

Accepted Answer

A)  drops the packet
B)  drops the packet and notifies an administrator
C)  passes the packet
D)  passes the packet, but notifies an administrator

Question 7

Which of the following is a criterion by which biometrics can be judged?

Accepted Answer

A)  cost
B)  susceptibility to deception
C)  both A and B
D)  neither A nor B

Question 8

Stateful firewalls are attractive because of their ________.

Accepted Answer

A)  high filtering sophistication
B)  ability to filter complex application content
C)  QoS guarantees
D)  low cost

Question 9

Electronic signatures provide message-by-message ________.

Accepted Answer

A)  authentication
B)  confidentiality
C)  both A and B
D)  neither A nor B

Question 10

The password Velociraptor can be defeated most quickly by a ________.

Accepted Answer

A)  dictionary attack
B)  hybrid mode dictionary attack
C)  brute force attack
D)  All of the above could defeat the password equally quickly.

Question 11

The password Velociraptor is adequately strong.

Accepted Answer

A) True 
 B)False

Question 12

Cyberwar attacks are made by national governments or organized terrorists.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following can spread more rapidly?

Accepted Answer

A)  directly-propagating viruses
B)  directly-propagating worms
C)  Both of the above can spread with approximately equal speed.

Question 14

Mobile code is another name for ________.

Accepted Answer

A)  virus
B)  worm
C)  both A and B
D)  neither A nor B

Question 15

How will an SPI firewall handle a packet containing a TCP FIN segment?

Accepted Answer

A)  process it through the ACL
B)  pass it if it is part of an approved connection
C)  both A and B
D)  neither A nor B

Question 16

Identity theft is stealing credit card numbers,in order to make unauthorized purchases.

Accepted Answer

A) True 
 B)False

Question 17

After a break-in,the first step usually is to ________.

Accepted Answer

A)  do damage manually
B)  delete log files
C)  create a backdoor
D)  download a hacker toolkit

Question 18

Trojan horses can get onto computers by ________.

Accepted Answer

A)  viruses
B)  hackers
C)  both A and B
D)  neither A nor B

Question 19

Which of the following is a propagation vector for some worms?

Accepted Answer

A)  e-mail
B)  direct propagation
C)  both A and B
D)  neither A nor B

Question 20

Using encryption,you make it impossible for attackers to read your messages even if they intercept them.This is ________.

Accepted Answer

A)  authentication
B)  confidentiality
C)  both A and B
D)  neither A nor B

Exam 3: Network Security

Hackers identify possible victim computers by sending ________.

Correct AnswerverifiedShow Answer

Using encryption,you make it impossible for attackers to read your messages even if they intercept them.This is ________.

Correct AnswerverifiedShow Answer

The password Velociraptor can be defeated most quickly by a ________.

Correct AnswerverifiedShow Answer

Trojan horses can get onto computers by ________.

Correct AnswerverifiedShow Answer

Malware programs that masquerade as system files are called ________.

Correct AnswerverifiedShow Answer

After a break-in,the first step usually is to ________.

Correct AnswerverifiedShow Answer

In symmetric key encryption,a key must be ________ bits long or longer to be considered strong.(Choose the choice closest to the correct answer.)

Correct AnswerverifiedShow Answer

Which of the following is a propagation vector for some worms?

Correct AnswerverifiedShow Answer

Which of the following is a criterion by which biometrics can be judged?

Correct AnswerverifiedShow Answer

How will an SPI firewall handle a packet containing a TCP FIN segment?

Correct AnswerverifiedShow Answer

Which of the following can spread more rapidly?

Correct AnswerverifiedShow Answer

Stateful firewalls are attractive because of their ________.

Correct AnswerverifiedShow Answer

Cyberwar attacks are made by national governments or organized terrorists.

Correct AnswerverifiedShow Answer

When a packet that is part of an ongoing connection arrives at a stateful inspection firewall,the firewall usually ________.

Correct AnswerverifiedShow Answer

Vulnerabilities are occasionally found in even the best security products.Consequently,companies must ________.

Correct AnswerverifiedShow Answer

Identity theft is stealing credit card numbers,in order to make unauthorized purchases.

Correct AnswerverifiedShow Answer

The password Velociraptor is adequately strong.

Correct AnswerverifiedShow Answer

Mobile code is another name for ________.

Correct AnswerverifiedShow Answer

A password that can be defeated by a hybrid dictionary attack can be adequately long if it ________.

Correct AnswerverifiedShow Answer

Electronic signatures provide message-by-message ________.

Correct AnswerverifiedShow Answer

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