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SSCP Exam Certification & Exam SSCP Overview

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Exam SSCP Overview | Exam SSCP Vce Format

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ISC System Security Certified Practitioner (SSCP) Sample Questions (Q1199-Q1204):

NEW QUESTION # 1199
Which of the following can be used as a covert channel?

A. Storage and permissions.
B. Storage and low bits.
C. Storage and timing.
D. Storage and classification.

Answer: C

Explanation:
Section: Security Operation Adimnistration
Explanation/Reference:
The Orange book requires protection against two types of covert channels, Timing and Storage.
The following answers are incorrect:
Storage and low bits. Is incorrect because, low bits would not be considered a covert channel.
Storage and permissions. Is incorrect because, permissions would not be considered a covert channel.
Storage and classification. Is incorrect because, classification would not be considered a covert channel.

NEW QUESTION # 1200
Which of the following questions is less likely to help in assessing physical and environmental protection?

A. Are entry codes changed periodically?
B. Is physical access to data transmission lines controlled?
C. Are appropriate fire suppression and prevention devices installed and working?
D. Are there processes to ensure that unauthorized individuals cannot read, copy, alter, or steal printed or electronic information?

Answer: D

Explanation:
Explanation/Reference:
Physical security and environmental security are part of operational controls, and are measures taken to protect systems, buildings, and related supporting infrastructures against threats associated with their physical environment. All the questions above are useful in assessing physical and environmental protection except for the one regarding processes that ensuring that unauthorized individuals cannot access information, which is more a production control.
Source: SWANSON, Marianne, NIST Special Publication 800-26, Security Self-Assessment Guide for Information Technology Systems, November 2001 (Pages A-21 to A-24).

NEW QUESTION # 1201
Which of the following countermeasures would be the most appropriate to prevent possible intrusion or damage from wardialing attacks?

A. Making sure only necessary phone numbers are made public
B. Require user authentication
C. Using completely different numbers for voice and data accesses
D. Monitoring and auditing for such activity

Answer: B

Explanation:
Explanation/Reference:
Knowlege of modem numbers is a poor access control method as an attacker can discover modem numbers by dialing all numbers in a range. Requiring user authentication before remote access is granted will help in avoiding unauthorized access over a modem line.
"Monitoring and auditing for such activity" is incorrect. While monitoring and auditing can assist in detecting a wardialing attack, they do not defend against a successful wardialing attack.
"Making sure that only necessary phone numbers are made public" is incorrect. Since a wardialing attack blindly calls all numbers in a range, whether certain numbers in the range are public or not is irrelevant.
"Using completely different numbers for voice and data accesses" is incorrect. Using different number ranges for voice and data access might help prevent an attacker from stumbling across the data lines while wardialing the public voice number range but this is not an adequate countermeaure.
References:
CBK, p. 214
AIO3, p. 534-535

NEW QUESTION # 1202
Which of the following transmission media would NOT be affected by cross talk or interference?

A. Satellite radiolink
B. Fiber optic cables
C. Copper cable
D. Radio System

Answer: B

Explanation:
Section: Network and Telecommunications
Explanation/Reference:
Only fiber optic cables are not affected by crosstalk or interference.
For your exam you should know the information about transmission media:
Copper Cable
Copper cable is very simple to install and easy to tap. It is used mostly for short distance and supports voice and data.
Copper has been used in electric wiring since the invention of the electromagnet and the telegraph in the
1820s.The invention of the telephone in 1876 created further demand for copper wire as an electrical conductor.
Copper is the electrical conductor in many categories of electrical wiring. Copper wire is used in power generation, power transmission, power distribution, telecommunications, electronics circuitry, and countless types of electrical equipment. Copper and its alloys are also used to make electrical contacts. Electrical wiring in buildings is the most important market for the copper industry. Roughly half of all copper mined is used to manufacture electrical wire and cable conductors.
Copper Cable

Image Source - http://i00.i.aliimg.com/photo/v0/570456138/FRLS_HR_PVC_Copper_Cable.jpg Coaxial cable Coaxial cable, or coax (pronounced 'ko.aks), is a type of cable that has an inner conductor surrounded by a tubular insulating layer, surrounded by a tubular conducting shield. Many coaxial cables also have an insulating outer sheath or jacket. The term coaxial comes from the inner conductor and the outer shield sharing a geometric axis. Coaxial cable was invented by English engineer and mathematician Oliver Heaviside, who patented the design in 1880.Coaxial cable differs from other shielded cable used for carrying lower-frequency signals, such as audio signals, in that the dimensions of the cable are controlled to give a precise, constant conductor spacing, which is needed for it to function efficiently as a radio frequency transmission line.
Coaxial cable are expensive and does not support many LAN's. It supports data and video Coaxial Cable

Image Source - http://www.tlc-direct.co.uk/Images/Products/size_3/CARG59.JPG Fiber optics An optical fiber cable is a cable containing one or more optical fibers that are used to carry light. The optical fiber elements are typically individually coated with plastic layers and contained in a protective tube suitable for the environment where the cable will be deployed. Different types of cable are used for different applications, for example long distance telecommunication, or providing a high-speed data connection between different parts of a building.
Fiber optics used for long distance, hard to splice, not vulnerable to cross talk and difficult to tap. It supports voice data, image and video.
Radio System
Radio systems are used for short distance,cheap and easy to tap.
Radio is the radiation (wireless transmission) of electromagnetic signals through the atmosphere or free space.
Information, such as sound, is carried by systematically changing (modulating) some property of the radiated waves, such as their amplitude, frequency, phase, or pulse width. When radio waves strike an electrical conductor, the oscillating fields induce an alternating current in the conductor. The information in the waves can be extracted and transformed back into its original form.
Fiber Optics

Image Source - http://aboveinfranet.com/wp-content/uploads/2014/04/fiber-optic-cables-above-infranet- solutions.jpg Microwave radio system Microwave transmission refers to the technology of transmitting information or energy by the use of radio waves whose wavelengths are conveniently measured in small numbers of centimetre; these are called microwaves.
Microwaves are widely used for point-to-point communications because their small wavelength allows conveniently-sized antennas to direct them in narrow beams, which can be pointed directly at the receiving antenna. This allows nearby microwave equipment to use the same frequencies without interfering with each other, as lower frequency radio waves do. Another advantage is that the high frequency of microwaves gives the microwave band a very large information-carrying capacity; the microwave band has a bandwidth 30 times that of all the rest of the radio spectrum below it. A disadvantage is that microwaves are limited to line of sight propagation; they cannot pass around hills or mountains as lower frequency radio waves can.
Microwave radio transmission is commonly used in point-to-point communication systems on the surface of the Earth, in satellite communications, and in deep space radio communications. Other parts of the microwave radio band are used for radars, radio navigation systems, sensor systems, and radio astronomy.
Microwave radio systems are carriers for voice data signal, cheap and easy to tap.
Microwave Radio System

Image Source - http://www.valiantcom.com/images/applications/e1_digital_microwave_radio.gif Satellite Radio Link Satellite radio is a radio service broadcast from satellites primarily to cars, with the signal broadcast nationwide, across a much wider geographical area than terrestrial radio stations. It is available by subscription, mostly commercial free, and offers subscribers more stations and a wider variety of programming options than terrestrial radio.
Satellite radio link uses transponder to send information and easy to tap.
The following answers are incorrect:
Copper Cable - Copper cable is very simple to install and easy to tap. It is used mostly for short distance and supports voice and data.
Radio System - Radio systems are used for short distance,cheap and easy to tap.
Satellite Radio Link - Satellite radio link uses transponder to send information and easy to tap.
The following reference(s) were/was used to create this question:
CISA review manual 2014 page number 265 &
Official ISC2 guide to CISSP CBK 3rd Edition Page number 233

NEW QUESTION # 1203
Which of the following algorithms does NOT provide hashing?

A. MD5
B. SHA-1
C. RC4
D. MD2

Answer: C

Explanation:
As it is an algorithm used for encryption and does not provide hashing functions , it is also commonly implemented ' Stream Ciphers '.
The other answers are incorrect because :
SHA-1 was designed by NIST and NSA to be used with the Digital Signature Standard (DSS).
SHA was designed to be used in digital signatures and was developed when a more secure hashing algorithm was required for U.S. government applications.
MD2 is a one-way hash function designed by Ron Rivest that creates a 128-bit message digest value. It is not necessarily any weaker than the other algorithms in the "MD" family, but it is much slower.
MD5 was also created by Ron Rivest and is the newer version of MD4. It still produces a 128-bit hash, but the algorithm is more complex, which makes it harder to break.

NEW QUESTION # 1204
......

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