Secure Sockets Layer (SSL) is the technology used in most Web-based applications. SSL version 2.0 supports strong authentication of the web server, but the authentication of the client side only comes with version 3.0. SSL v4 is not a defined standard.
Source: TIPTON, Harold F. & KRAUSE, Micki, Information Security Management Handbook, 4th edition (volume 1), 2000, CRC Press, Chapter 3, Secured Connections to External Networks (page 54).

Explanation/Reference:
First you have to realize that the question is specifically talking about a CDROM. The information stored on a CDROM is not in electro magnetic format, so a degausser woud be inneffective.
You cannot sanitize a CDROM but you might be able to sanitize a RW/CDROM. A CDROM is a write once device and cannot be overwritten like a hard disk or other magnetic device.
Physical Damage would not be enough as information could still be extracted in a lab from the undamaged portion of the media or even from the pieces after the physical damage has been done.
Physical Destruction using a shredder, your microwave oven, melting it, would be very effective and the best choice for a non magnetic media such as a CDROM.
Source: TIPTON, Hal, (ISC)2, Introduction to the CISSP Exam presentation.

Explanation/Reference:
IPv4 addresses are currently 32 bits long. IPv6 addresses are 128 bits long.
Source: KRUTZ, Ronald L & VINES, Russel D., The CISSP Prep Guide: Mastering the Ten Domains of Computer Security, 2001, John Wiley & Sons, Page 87.

Key clustering happens when a plaintext message generates identical ciphertext messages using the same transformation algorithm, but with different keys.
Source: KRUTZ, Ronald L. & VINES, Russel D., The CISSP Prep Guide: Mastering the Ten Domains of Computer Security, John Wiley & Sons, 2001, Chapter 4: Cryptography (page 130).

RC2, RC4, RC5 and RC6 were developed by Ronal Rivest from RSA
Security.
In the RC family only RC4 is a stream cipher.
RC4 allows a variable key length.
RC2 works with 64-bit blocks and variable key lengths,
RC5 has variable block sizes, key length and number of processing rounds.
RC6 was designed to fix a flaw in RC5.
Source: ANDRESS, Mandy, Exam Cram CISSP, Coriolis, 2001, Chapter 6: Cryptography
(page 103).