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CEH v11 Changed 312-50v11 Questions

Page: 16 / 20
Total 528 questions

Certified Ethical Hacker Exam (CEH v11) Questions and Answers

Question 61

When discussing passwords, what is considered a brute force attack?

Options:

A.

You attempt every single possibility until you exhaust all possible combinations or discover the password

B.

You threaten to use the rubber hose on someone unless they reveal their password

C.

You load a dictionary of words into your cracking program

D.

You create hashes of a large number of words and compare it with the encrypted passwords

E.

You wait until the password expires

Question 62

Abel, a security professional, conducts penetration testing in his client organization to check for any security loopholes. He launched an attack on the DHCP servers by broadcasting forged DHCP requests and leased all the DHCP addresses available in the DHCP scope until the server could not issue any more IP addresses. This led to a Dos attack, and as a result, legitimate employees were unable to access the clients network. Which of the following attacks did Abel perform in the above scenario?

Options:

A.

VLAN hopping

B.

DHCP starvation

C.

Rogue DHCP server attack

D.

STP attack

Question 63

What kind of detection techniques is being used in antivirus software that identifies malware by collecting data from multiple protected systems and instead of analyzing files locally it’s made on the provider’s environment?

Options:

A.

Behavioral based

B.

Heuristics based

C.

Honeypot based

D.

Cloud based

Question 64

Kevin, an encryption specialist, implemented a technique that enhances the security of keys used for encryption and authentication. Using this technique, Kevin input an initial key to an algorithm that generated an enhanced key that is resistant to brute-force attacks. What is the technique employed by Kevin to improve the security of encryption keys?

Options:

A.

Key derivation function

B.

Key reinstallation

C.

A Public key infrastructure

D.

Key stretching

Page: 16 / 20
Total 528 questions