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GIAC Certified Firewall Analyst Sample Questions:

1. The simplest form of a firewall is a packet filtering firewall. Typically a router works as a packet-filtering firewall and has the capability to filter on some of the contents of packets. On which of the following layers of the OSI reference model do these routers filter information?
Each correct answer represents a complete solution. Choose all that apply.

A) Physical layer
B) Network layer
C) Data Link layer
D) Transport layer

2. Adam works as a Senior Programmer for Umbrella Inc. A project has been assigned to him to write a short program to gather user input for a Web application. He wants to keep his program neat and simple. His chooses to use printf(str) where he should have ideally used printf("%s", str).
What attack will his program expose the Web application to?

A) SQL injection attack
B) Format string attack
C) Sequence++ attack
D) Cross Site Scripting attack

3. You work as a System Administrator for McNeil Inc. The company has a Linux-based network. You are a root user on the Red Hat operating system. Your network is configured for IPv6 IP addressing. Which of the following commands will you use to test TCP/IP connectivity?

A) ifconfig
B) ping
C) traceroute
D) ping6

4. You work as a Security Administrator for Tech Perfect Inc. The company has a switched network. You have configured tcpdump in the network which can only see traffic addressed to itself and broadcast traffic. What will you do when you are required to see all traffic of the network?

A) Configure VLAN Access Control List (VACL).
B) Configure Network Access Control (NAC).
C) Connect the sniffer device to a Switched Port Analyzer (SPAN) port.
D) Connect the sniffer device to a Remote Switched Port Analyzer (RSPAN) port.

5. Which of the following are the countermeasures against a man-in-the-middle attack?
Each correct answer represents a complete solution. Choose all that apply.

A) Using public key infrastructure authentication.
B) Using Secret keys for authentication.
C) Using basic authentication.
D) Using Off-channel verification.

Solutions: