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ISC CISSP Exam is intended for experienced information security professionals who are responsible for designing, implementing, and managing information security programs. Candidates must have at least five years of professional experience in the field of information security, with a minimum of three years of experience in one or more of the eight domains covered by the exam. Certified Information Systems Security Professional (CISSP) certification is suitable for security consultants, security managers, security auditors, security analysts, and other professionals who are responsible for ensuring the security of information assets.
The CISSP exam is offered by the International Information System Security Certification Consortium (ISC) and is designed for professionals who have at least five years of experience in the information security field. Certified Information Systems Security Professional (CISSP) certification is highly valued by employers as it demonstrates an individual’s knowledge and expertise in information security. In addition, it provides a competitive edge to professionals seeking career advancement in this field.
The CISSP Exam covers a wide range of topics, including access control, cryptography, network security, security operations, and software development security. CISSP exam consists of 250 multiple-choice questions and is administered over six hours. Candidates must achieve a passing score of 700 or higher to become certified. CISSP exam is challenging, and it requires a significant amount of preparation and study.
CISSP Prep Guide - Pdf CISSP Dumps
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ISC Certified Information Systems Security Professional (CISSP) Sample Questions (Q1779-Q1784):
NEW QUESTION # 1779
Which one of these risk factors would be the LEAST important consideration in choosing a building site for a new computer facility?
- A. Proximity to an airline flight path
- B. Vulnerability to natural disasters
- C. Vulnerability to crime
- D. Adjacent buildings and businesses
Answer: A
NEW QUESTION # 1780
Which security model uses division of operations into different parts and requires different users to perform each part?
- A. Biba model
- B. Non-interference model
- C. Clark-Wilson model
- D. Bell-LaPadula model
Answer: C
Explanation:
The Clark-Wilson model uses separation of duties, which divides an operation into
different parts and requires different users to perform each part. This prevents authorized users
from making unauthorized modifications to data, thereby protecting its integrity.
The Clark-Wilson integrity model provides a foundation for specifying and analyzing an integrity
policy for a computing system.
The model is primarily concerned with formalizing the notion of information integrity. Information
integrity is maintained by preventing corruption of data items in a system due to either error or
malicious intent. An integrity policy describes how the data items in the system should be kept
valid from one state of the system to the next and specifies the capabilities of various principals in
the system. The model defines enforcement rules and certification rules.
The model's enforcement and certification rules define data items and processes that provide the
basis for an integrity policy. The core of the model is based on the notion of a transaction.
A well-formed transaction is a series of operations that transition a system from one consistent
state to another consistent state.
In this model the integrity policy addresses the integrity of the transactions.
The principle of separation of duty requires that the certifier of a transaction and the implementer
be different entities.
The model contains a number of basic constructs that represent both data items and processes
that operate on those data items. The key data type in the Clark-Wilson model is a Constrained
Data Item (CDI). An Integrity Verification Procedure (IVP) ensures that all CDIs in the system are
valid at a certain state. Transactions that enforce the integrity policy are represented by
Transformation Procedures (TPs). A TP takes as input a CDI or Unconstrained Data Item (UDI)
and produces a CDI. A TP must transition the system from one valid state to another valid state.
UDIs represent system input (such as that provided by a user or adversary). A TP must guarantee
(via certification) that it transforms all possible values of a UDI to a "safe" CDI.
In general, preservation of data integrity has three goals:
Prevent data modification by unauthorized parties
Prevent unauthorized data modification by authorized parties
Maintain internal and external consistency (i.e. data reflects the real world)
Clark-Wilson addresses all three rules but BIBA addresses only the first rule of intergrity.
References:
HARRIS, Shon, All-In-One CISSP Certification Fifth Edition, McGraw-Hill/Osborne, Chapter 5:
Security Architecture and Design (Page 341-344).
and
http://en.wikipedia.org/wiki/Clark-Wilson_model
NEW QUESTION # 1781
Which of the following are NOT a countermeasure to traffic analysis?
- A. Padding messages
- B. Covert channel analysis
- C. Eavesdropping
- D. Sending noise
Answer: C
Explanation:
Lets do this with a elimination process. With padding messages you can countermeasure traffic analysis because you add garbage information to the message to let in end in a fixed length, this can confuse the analyzer. Sending noise on the communication line could also countermeasure analysis because the analyzer don't now how to differentiate between real information and noise. You can also covert channel analysis. Eavesdropping does not apply in this situation, its not considered a counter measure to traffic analysis.
NEW QUESTION # 1782
Which backup method is additive because the time and tape space required for each night's backup grows during the week as it copies the day's changed files and the previous days' changed files up to the last full backup?
- A. tape backup method.
- B. incremental backup method.
- C. full backup method.
- D. differential backup method.
Answer: D
Explanation:
The Differential Backup Method is additive because the time and tape space required for each night's backup grows during the week as it copies the day's changed files and the previous days' changed files up to the last full backup.
Archive Bits
Unless you've done a lot of backups in your time you've probably never heard of an Archive
Bit. An archive bit is, essentially, a tag that is attached to every file. In actuality, it is a binary digit that is set on or off in the file, but that's crummy technical jargon that doesn't really tell us anything. For the sake of our discussion, just think of it as the flag on a mail box. If the flag is up, it means the file has been changed. If it's down, then the file is unchanged.
Archive bits let the backup software know what needs to be backed up. The differential and incremental backup types rely on the archive bit to direct them.
Backup Types
Full or Normal
The "Full" or "normal" backup type is the most standard. This is the backup type that you would use if you wanted to backup every file in a given folder or drive. It backs up everything you direct it to regardless of what the archive bit says. It also resets all archive bits (puts the flags down). Most backup software, including the built-in Windows backup software, lets you select down to the individual file that you want backed up. You can also choose to backup things like the "system state".
Incremental
When you schedule an incremental backup, you are in essence instructing the software to only backup files that have been changed, or files that have their flag up. After the incremental backup of that file has occured, that flag will go back down. If you perform a normal backup on Monday, then an incremental backup on Wednesday, the only files that will be backed up are those that have changed since Monday. If on Thursday someone deletes a file by accident, in order to get it back you will have to restore the full backup from
Monday, followed by the Incremental backup from Wednesday.
Differential
Differential backups are similar to incremental backups in that they only backup files with their archive bit, or flag, up. However, when a differential backup occurs it does not reset those archive bits which means, if the following day, another differential backup occurs, it will back up that file again regardless of whether that file has been changed or not.
Source: KRUTZ, Ronald L. & VINES, Russel D., The CISSP Prep Guide: Mastering the
Ten Domains of Computer Security, 2001, John Wiley & Sons, Page 69.
And: HARRIS, Shon, All-In-One CISSP Certification Exam Guide, McGraw-Hill/Osborne,
2002, chapter 9: Disaster Recovery and Business continuity (pages 617-619).
And: http://www.brighthub.com/computing/windows-platform/articles/24531.aspx
NEW QUESTION # 1783
Place in order, from BEST (1) to WORST (4), the following methods to reduce the risk of data remanence on magnetic mediA.
Answer:
Explanation:
Explanation
NEW QUESTION # 1784
......
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