Free SSCP Exam Braindumps

- (Topic 6)
What is the framing specification used for transmitting digital signals at 1.544 Mbps on a T1 facility?

1. A. DS-0
2. B. DS-1
3. C. DS-2
4. D. DS-3

Correct Answer: B
Digital Signal level 1 (DS-1) is the framing specification used for transmitting digital signals at 1.544 Mbps on a T1 facility. DS-0 is the framing specification used in transmitting digital signals over a single 64 Kbps channel over a T1 facility. DS-3 is the framing specification used for transmitting digital signals at 44.736 Mbps on a T3 facility. DS-2 is not a defined framing specification.
Source: KRUTZ, Ronald L. & VINES, Russel D., The CISSP Prep Guide: Mastering the Ten Domains of Computer Security, John Wiley & Sons, 2001, Chapter 3: Telecommunications and Network Security (page 114).

- (Topic 5)
Which of the following is not an example of a block cipher?

1. A. Skipjack
2. B. IDEA
3. C. Blowfish
4. D. RC4

Correct Answer: D
RC4 is a proprietary, variable-key-length stream cipher invented by Ron Rivest for RSA Data Security, Inc. Skipjack, IDEA and Blowfish are examples of block ciphers.
Source: SHIREY, Robert W., RFC2828: Internet Security Glossary, may 2000.

- (Topic 1)
Which of the following is not a logical control when implementing logical access security?

1. A. access profiles.
2. B. userids.
3. C. employee badges.
4. D. passwords.

Correct Answer: C
Employee badges are considered Physical so would not be a logical control. The following answers are incorrect:
userids. Is incorrect because userids are a type of logical control.
access profiles. Is incorrect because access profiles are a type of logical control. passwords. Is incorrect because passwords are a type of logical control.

- (Topic 6)
What is the 802.11 standard related to?

1. A. Public Key Infrastructure (PKI)
2. B. Wireless network communications
3. C. Packet-switching technology
4. D. The OSI/ISO model

Correct Answer: B
The 802.11 standard outlines how wireless clients and APs communicate, lays out the specifications of their interfaces, dictates how signal transmission should take place, and describes how authentication, association, and security should be implemeted.
The following answers are incorrect:
Public Key Infrastructure (PKI) Public Key Infrastructure is a supporting infrastructure to manage public keys. It is not part of the IEEE 802 Working Group standard.
Packet-switching technology A packet-switching technology is not included in the IEEE 802 Working Group standard. It is a technology where-in messages are broken up into packets,
which then travel along different routes to the destination.
The OSI/ISO model The Open System Interconnect model is a sevel-layer model defined as an international standard describing network communications.
The following reference(s) were/was used to create this question:
Source: Shon Harris - "All-in-One CISSP Exam Guide" Fourth Edition; Chapter 7 - Telecommunications and Network Security: pg. 624.
* 802.11 refers to a family of specifications developed by the IEEE for Wireless LAN technology. 802.11 specifies an over-the-air interface between a wireless client and a base station or between two wireless clients. The IEEE accepted the specification in 1997. There are several specifications in the 802.11 family:
* 802.11 # applies to wireless LANs and provides 1 or 2 Mbps transmission in the 2.4 GHz band using either frequency hopping spread spectrum (FHSS) or direct sequence spread spectrum (DSSS).
* 802.11a # an extension to 802.11 that applies to wireless LANs and provides up to 54 Mbps in the 5GHz band. 802.11a uses an orthogonal frequency division multiplexing encoding scheme rather than FHSS or DSSS.
* 802.11b (also referred to as 802.11 High Rate or Wi-Fi) # an extension to 802.11 that applies to wireless LANS and provides 11 Mbps transmission (with a fallback to 5.5, 2 and 1 Mbps) in the 2.4 GHz band.
* 802.11b uses only DSSS. 802.11b was a 1999 ratification to the original 802.11 standard, allowing wireless functionality comparable to Ethernet. 802.11g # applies to wireless LANs and provides 20+ Mbps in the 2.4 GHz band.
Source: 802.11 Planet's web site.

- (Topic 5)
A code, as is pertains to cryptography:

1. A. Is a generic term for encryption.
2. B. Is specific to substitution ciphers.
3. C. Deals with linguistic units.
4. D. Is specific to transposition ciphers.

Correct Answer: C
Historically, a code refers to a cryptosystem that deals with linguistic units: words, phrases, sentences, and so forth. Codes are only useful for specialized circumstances where the message to transmit has an already defined equivalent ciphertext word.
Source: DUPUIS, Cl?ment, CISSP Open Study Guide on domain 5, cryptography, April 1999.