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GCFW Exam Dumps : GIAC Certified Firewall Analyst

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GIAC Certified Firewall Analyst Questions and Answers

Question 1

Adam works as a Security Administrator for Umbrella Inc. A project has been assigned to him to secure access to the network of the company from all possible entry points. He segmented the network into several subnets and installed firewalls all over the network. He has placed very stringent rules on all the firewalls, blocking everything in and out except the ports that must be used. He does need to have port 80 open since his company hosts a website that must be accessed from the Internet. Adam is still worried about the programs like Hping2 that can get into a network through covert channels.

Which of the following is the most effective way to protect the network of the company from an attacker using Hping2 to scan his internal network?

Options:

A.

Block ICMP type 13 messages

B.

Block ICMP type 3 messages

C.

Block all outgoing traffic on port 21

D.

Block all outgoing traffic on port 53

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Question 2

Which of the following types of firewalls increases the security of data packets by remembering the state of connection at the network and the session layers as they pass through the filter?

Options:

A.

Stateful packet filter firewall

B.

Stateless packet filter firewall

C.

Virtual firewall

D.

PIX firewall

Question 3

John works as a professional Ethical Hacker. He has been assigned the project of testing the security of John notices that the We-are-secure network is vulnerable to a man-inthe- middle attack since the key exchange process of the cryptographic algorithm it is using does not authenticate participants. Which of the following cryptographic algorithms is being used by the Weare- secure server?

Options:

A.

Diffie-Hellman

B.

Blowfish

C.

RSA

D.

Twofish