Explanation/Reference:
Explanation:
Encrypted authentication is a firewall feature that allows users on an external network to authenticate themselves to prove that they are authorized to access resources on the internal network. Encrypted authentication is convenient because it happens at the transport layer between a client software and a firewall, allowing all normal application software to run without hindrance.
Incorrect Answers:
A: The firewall encrypted authentication feature is performed at the transport layer, not the network layer.
B: The firewall encrypted authentication feature is performed at the transport layer, not the session layer.
D: The firewall encrypted authentication feature is performed at the transport layer, not the data link layer.
References:
Harris, Shon, All In One CISSP Exam Guide, 6th Edition, McGraw-Hill, New York, 2013, p. 1161

The correct answer is Operates at the Application Layer. A packet-filtering firewall can operate at the network or transport layers.

Atoms and Data Shon Harris says: "A device that performs degaussing generates a coercive magnetic force that reduces the magnetic flux density of the storage media to zero. This magnetic force is what
properly erases data from media. Data are stored on magnetic media by the representation of the
polarization of the atoms. Degaussing changes"
The latest ISC2 book says:
"Degaussing can also be a form of media destruction. High-power degaussers are so strong in
some cases that they can literally bend and warp the platters in a hard drive. Shredding and
burning are effective destruction methods for non-rigid magnetic media. Indeed, some shredders
are capable of shredding some rigid media such as an optical disk. This may be an effective
alternative for any optical media containing nonsensitive information due to the residue size
remaining after feeding the disk into the machine. However, the residue size might be too large for
media containing sensitive information. Alternatively, grinding and pulverizing are acceptable
choices for rigid and solid-state media. Specialized devices are available for grinding the face of
optical media that either sufficiently scratches the surface to render the media unreadable or
actually grinds off the data layer of the disk. Several services also exist which will collect drives,
destroy them on site if requested and provide certification of completion. It will be the responsibility
of the security professional to help, select, and maintain the most appropriate solutions for media
cleansing and disposal."
Degaussing is achieved by passing the magnetic media through a powerful magnet field to
rearrange the metallic particles, completely removing any resemblance of the previously recorded
signal (from the "all about degaussers link below). Therefore, degaussing will work on any
electronic based media such as floppy disks, or hard disks - all of these are examples of electronic
storage. However, "read-only media" includes items such as paper printouts and CD-ROM wich do
not store data in an electronic form or is not magnetic storage. Passing them through a magnet
field has no effect on them.
Not all clearing/ purging methods are applicable to all media- for example, optical media is not
susceptible to degaussing, and overwriting may not be effective against Flash devices. The
degree to which information may be recoverable by a sufficiently motivated and capable adversary
must not be underestimated or guessed at in ignorance. For the highest-value commercial data,
and for all data regulated by government or military classification rules, read and follow the rules
and standards.
I will admit that this is a bit of a trick question. Determining the difference between "read-only
media" and "read-only memory" is difficult for the question taker. However, I believe it is
representative of the type of question you might one day see on an exam.
The other answers are incorrect because:
Floppy Disks, Magnetic Tapes, and Magnetic Hard Disks are all examples of magnetic storage,
and therefore are erased by degaussing.
A videotape is a recording of images and sounds on to magnetic tape as opposed to film stock
used in filmmaking or random access digital media. Videotapes are also used for storing scientific
or medical data, such as the data produced by an electrocardiogram. In most cases, a helical scan
video head rotates against the moving tape to record the data in two dimensions, because video
signals have a very high bandwidth, and static heads would require extremely high tape speeds.
Videotape is used in both video tape recorders (VTRs) or, more commonly and more recently,
videocassette recorder (VCR) and camcorders. A Tape use a linear method of storing information
and since nearly all video recordings made nowadays are digital direct to disk recording (DDR),
videotape is expected to gradually lose importance as non-linear/random-access methods of
storing digital video data become more common.
Reference(s) used for this question:
Harris, Shon (2012-10-25). CISSP All-in-One Exam Guide, 6th Edition (Kindle Locations 25627-
25630). McGraw-Hill. Kindle Edition.
Schneiter, Andrew (2013-04-15). Official (ISC)2 Guide to the CISSP CBK, Third Edition : Security
Operations (Kindle Locations 580-588). . Kindle Edition.
All About Degaussers and Erasure of Magnetic Media:
http://www.degausser.co.uk/degauss/degabout.htm
http://www.degaussing.net/
http://www.cerberussystems.com/INFOSEC/stds/ncsctg25.htm

The correct answer is "Luring the perpetrator to an attractive area or presenting the perpetrator with a lucrative target after the crime has already been initiated", the definition of enticement.
*Answer "Encouraging the commission of a crime when there was initially no intent to commit a crime" is the definition of entrapment.
The other answers are distracters.