Which of the following is referred to as Electromagnetic Interference (EMI)?

1. A. Electrical line noise
2. B. Spike
3. C. Transient
4. D. Brownout

Correct Answer: A

Which of the following is a benefit of using John the Ripper for auditing passwords?

1. A. John's Blowfish cracking routine uses a complex central computing loop that increases the cost of each hash computatio
2. B. John the Ripper is much slower for auditing passwords encrypted with MD5 and Blowfis
3. C. John's MD5 cracking routine uses a simplified central computing loop that decreases the cost of each hash computatio
4. D. John cannot use the DES bit-slicing technique, so it is much slower than other tools, especially when used against DES-encrypted password

Correct Answer: C

Which aspect of UNIX systems was process accounting originally developed for?

1. A. Data warehouse
2. B. Time sharing
3. C. Process tracking
4. D. Real time

Correct Answer: C

A sensor that uses a light beam and a detecting plate to alarm if the light beam is obstructed is most commonly used to identify which of the following threats?

1. A. Power
2. B. Smoke
3. C. Natural Gas
4. D. Water
5. E. Toxins

Correct Answer: B

You work as a Network Administrator for Net World Inc. The company has a Linux-based network. For testing purposes, you have configured a default IP-table with several filtering rules. You want to reconfigure the table. For this, you decide to remove the rules from all the chains in the table. Which of the following commands will you use?

1. A. IPTABLES -D
2. B. IPTABLES -A
3. C. IPTABLES -h
4. D. IPTABLES -F

Correct Answer: D