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Helping Hand Questions for 312-50v11

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Question 88

What is a NULL scan?

Options:

A.

A scan in which all flags are turned off

B.

A scan in which certain flags are off

C.

A scan in which all flags are on

D.

A scan in which the packet size is set to zero

E.

A scan with an illegal packet size

Question 89

Which of the following provides a security professional with most information about the system’s security posture?

Options:

A.

Phishing, spamming, sending trojans

B.

Social engineering, company site browsing tailgating

C.

Wardriving, warchalking, social engineering

D.

Port scanning, banner grabbing service identification

Question 90

An incident investigator asks to receive a copy of the event logs from all firewalls, proxy servers, and Intrusion Detection Systems (IDS) on the network of an organization that has experienced a possible breach of security. When the investigator attempts to correlate the information in all of the logs, the sequence of many of the logged events do not match up.

What is the most likely cause?

Options:

A.

The network devices are not all synchronized.

B.

Proper chain of custody was not observed while collecting the logs.

C.

The attacker altered or erased events from the logs.

D.

The security breach was a false positive.

Question 91

Mike, a security engineer, was recently hired by BigFox Ltd. The company recently experienced disastrous DoS attacks. The management had instructed Mike to build defensive strategies for the company's IT infrastructure to thwart DoS/DDoS attacks. Mike deployed some countermeasures to handle jamming and scrambling attacks. What is the countermeasure Mike applied to defend against jamming and scrambling attacks?

Options:

A.

Allow the usage of functions such as gets and strcpy

B.

Allow the transmission of all types of addressed packets at the ISP level

C.

Implement cognitive radios in the physical layer

D.

A Disable TCP SYN cookie protection

Page: 22 / 39
Exam Code: 312-50v11
Exam Name: Certified Ethical Hacker Exam (CEH v11)
Last Update: Nov 23, 2024
Questions: 528
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