Question 1

How does a packet level firewall work ?Describe the proxy server function,the packet layer firewall function,the DMZ and the architecture of this design.What is a packet level firewall as compared to a NAT proxy server and as compared to an applications layer firewall?

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Question 2

Describe five biometric technologies.How can a biometric enhance security in a network?What are some of the plusses and minuses of biometrics?

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Question 3

Describe how symmetric encryption works,draw a chart of this approach.How does DES differ from 3DES?From RC4?From AES?

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Question 4

What is PKI and why is it important?

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Question 5

How do you secure dial-in access?

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Question 6

To snare intruders,many organizations now use _________ techniques.
A) entrapment
B) hacker
C) Trojan horse
D) cracker
E) DES

Accepted Answer

Entrapment techniques involve setting traps to catch intruders, which is a common practice in many organizations to detect and prevent unauthorized access. The other choices such as hacker, Trojan horse, cracker, and DES are not related to snaring intruders.

Question 7

Describe how asymmetric encryption works,using a chart to help to explain this approach.

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Question 8

Using a chart format,describe 8 possible threats to a data network (such as hardware,software,files,circuits,internal personnel,physical security,external people,and users).Describe 8 possible solutions to these conceivable threats.

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Question 9

What is a honey pot?

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Question 10

A fundamental technique to determine if an intrusion is in progress in a stable network is:
A) anomaly detection
B) armoring cable
C) RSA algorithm
D) patching
E) scanning a user's fingerprint

Accepted Answer

Anomaly detection is a technique used to identify and report abnormal behavior in a network. It is an effective way to detect ongoing intrusions in stable network environments. Armoring cable, RSA algorithm, patching, and scanning a user's fingerprint are not techniques for detecting ongoing intrusions in a stable network, but rather security measures to prevent them.

Question 11

Compare and contrast symmetric and asymmetric encryption.

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Question 12

What is the difference between a network-based IPS,host-based IPS and application-based IPS?

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Question 13

How does PGP differ from SSL?How does SSL differ from IPsec?Compare and contrast IPSec tunnel mode and IPSec transfer mode.

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Question 14

What is IP spoofing?

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Question 15

How does IPS anomaly detection differ from misuse detection?

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Question 16

The use of computer analysis techniques to gather evidence for criminal and/or civil trials is known as:
A) Trojan horse
B) sniffing
C) tunneling
D) computer forensics
E) misuse detection

Accepted Answer

Computer analysis techniques used to gather evidence for criminal and/or civil trials is known as computer forensics. The other options - Trojan horse, sniffing, tunneling, and misuse detection - refer to various types of malicious activities or security breaches.

Question 17

What is social engineering?

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Question 18

What is a user profile used for in network management?

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Question 19

Explain how a Trojan horse works.

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Question 20

Compare and contrast DES and public key encryption.

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Quiz 10: Network Security