Pass Your ISC SSCP Exam with Correct 1074 Questions and Answers [Q579-Q597]

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Pass Your  ISC SSCP Exam with Correct 1074 Questions and Answers

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Systems & Application Security (15%):

  • Operating & Implementing End-Point Device Security – Here, the test takers should cover the details of HIDS, Endpoint encryption, host-based firewalls, trusted platform module, secure browsing, mobile device management, and application whitelisting;
  • Configuring & Operating Cloud Security – As for this subtopic, the learners should demonstrate an understanding of deployment models, virtualization, service models, legal & regulatory concerns, 3rd-party/outsourcing prerequisites, and shared responsibility model;
  • Identifying & Analyzing Malicious Code & Activity – This area includes malware, malicious activity, malicious code countermeasures, and malicious activity countermeasures;
  • Operating & Security Virtual Environments – This domain covers the details of Hypervisor, shared storage, virtual appliances, software-defined networking, resilience & continuity, and attacks & countermeasures.

NEW QUESTION 579
Which of the following does not address Database Management Systems (DBMS) Security?

  • A. Padded cells
  • B. Partitioning
  • C. Perturbation
  • D. Cell suppression

Answer: A

Explanation:
Padded cells complement Intrusion Detection Systems (IDSs) and are not related to DBMS security. Padded cells are simulated environments to which IDSs seamlessly transfer detected attackers and are designed to convince an attacker that the attack is going according to the plan. Cell suppression is a technique used against inference attacks by not revealing information in the case where a statistical query produces a very small result set. Perturbation also addresses inference attacks but involves making minor modifications to the results to a query. Partitioning involves splitting a database into two or more physical or logical parts; especially relevant for multilevel secure databases.
Source: LaROSA, Jeanette (domain leader), Application and System Development Security CISSP Open Study Guide, version 3.0, January 2002.

 

NEW QUESTION 580
Which of the following statements pertaining to using Kerberos without any extension is false?

  • A. A client can be impersonated by password-guessing.
  • B. Kerberos uses public key cryptography.
  • C. Kerberos is mostly a third-party authentication protocol.
  • D. Kerberos provides robust authentication.

Answer: B

Explanation:
Explanation/Reference:
Kerberos is a trusted, credential-based, third-party authentication protocol that uses symmetric (secret) key cryptography to provide robust authentication to clients accessing services on a network.
Because a client's password is used in the initiation of the Kerberos request for the service protocol, password guessing can be used to impersonate a client.
Here is a nice overview of HOW Kerberos is implement as described in RFC 4556:
1. Introduction
The Kerberos V5 protocol [RFC4120] involves use of a trusted third party known as the Key Distribution Center (KDC) to negotiate shared
session keys between clients and services and provide mutual authentication between them.
The corner-stones of Kerberos V5 are the Ticket and the Authenticator. A Ticket encapsulates a symmetric key (the ticket session key) in an envelope (a public message) intended for a specific service.
The contents of the Ticket are encrypted with a symmetric key shared between the service principal and the issuing KDC. The encrypted part of the Ticket contains the client principal name, among other items.
An Authenticator is a record that can be shown to have been recently generated using the ticket session key in the associated Ticket. The ticket session key is known by the client who requested the ticket. The contents of the Authenticator are encrypted with the associated ticket session key. The encrypted part of an Authenticator contains a timestamp and the client principal name, among other items.
As shown in Figure 1, below, the Kerberos V5 protocol consists of the following message exchanges between the client and the KDC, and the
client and the application service:
The Authentication Service (AS) Exchange
The client obtains an "initial" ticket from the Kerberos authentication server (AS), typically a Ticket Granting Ticket (TGT). The AS-REQ message and the AS-REP message are the request and the reply message, respectively, between the client and the AS.
The Ticket Granting Service (TGS) Exchange
The client subsequently uses the TGT to authenticate and request a service ticket for a particular service, from the Kerberos ticket-granting server (TGS). The TGS-REQ message and the TGS-REP message are the request and the reply message respectively between the client and the TGS.
The Client/Server Authentication Protocol (AP) Exchange
The client then makes a request with an AP-REQ message, consisting of a service ticket and an authenticator that certifies the client's possession of the ticket session key. The server may optionally reply with an AP-REP message. AP exchanges typically negotiate session-specific symmetric keys.
Usually, the AS and TGS are integrated in a single device also known as the KDC.
+--------------+
+--------->| KDC |
AS-REQ / +-------| |
/ / +--------------+
/ / ^ |
/ |AS-REP / |
| | / TGS-REQ + TGS-REP
| | / /
| | / /
| | / +---------+
| | / /
| | / /
| | / /
| v / v
++-------+------+ +-----------------+
| Client +------------>| Application |
| | AP-REQ | Server |
| |<------------| |
+---------------+ AP-REP +-----------------+
Figure 1: The Message Exchanges in the Kerberos V5 Protocol
In the AS exchange, the KDC reply contains the ticket session key, among other items, that is encrypted using a key (the AS reply key)
shared between the client and the KDC. The AS reply key is typically derived from the client's password for human users. Therefore, for
human users, the attack resistance strength of the Kerberos protocol is no stronger than the strength of their passwords.
Source: KRUTZ, Ronald L. & VINES, Russel D., The CISSP Prep Guide: Mastering the Ten Domains of Computer Security, John Wiley & Sons, 2001, Chapter 2: Access control systems (page 40).
And
HARRIS, Shon, All-In-One CISSP Certification Exam Guide, McGraw-Hill/Osborne, 2002, chapter 4:
Access Control (pages 147-151).
and
http://www.ietf.org/rfc/rfc4556.txt

 

NEW QUESTION 581
Which of the following can best be defined as a cryptanalysis technique in which the analyst tries to determine the key from knowledge of some plaintext-ciphertext pairs?

  • A. A chosen-ciphertext attack
  • B. A known-plaintext attack
  • C. A known-algorithm attack
  • D. A chosen-plaintext attack

Answer: B

Explanation:
Explanation/Reference:
RFC2828 (Internet Security Glossary) defines a known-plaintext attack as a cryptanalysis technique in which the analyst tries to determine the key from knowledge of some plaintext-ciphertext pairs (although the analyst may also have other clues, such as the knowing the cryptographic algorithm). A chosen- ciphertext attack is defined as a cryptanalysis technique in which the analyst tries to determine the key from knowledge of plaintext that corresponds to ciphertext selected (i.e., dictated) by the analyst. A chosen-plaintext attack is a cryptanalysis technique in which the analyst tries to determine the key from knowledge of ciphertext that corresponds to plaintext selected (i.e., dictated) by the analyst. The other choice is a distracter.
The following are incorrect answers:
A chosen-plaintext attacks
The attacker has the plaintext and ciphertext, but can choose the plaintext that gets encrypted to see the corresponding ciphertext. This gives her more power and possibly a deeper understanding of the way the encryption process works so she can gather more information about the key being used. Once the key is discovered, other messages encrypted with that key can be decrypted.
A chosen-ciphertext attack
In chosen-ciphertext attacks, the attacker can choose the ciphertext to be decrypted and has access to the resulting decrypted plaintext. Again, the goal is to figure out the key. This is a harder attack to carry out compared to the previously mentioned attacks, and the attacker may need to have control of the system that contains the cryptosystem.
A known-algorithm attack
Knowing the algorithm does not give you much advantage without knowing the key. This is a bogus detractor. The algorithm should be public, which is the Kerckhoffs's Principle . The only secret should be the key.
Reference(s) used for this question:
Source: SHIREY, Robert W., RFC2828: Internet Security Glossary, may 2000.
and
Harris, Shon (2012-10-25). CISSP All-in-One Exam Guide, 6th Edition (p. 866). McGraw-Hill. Kindle Edition.
and
Kerckhoffs's Principle

 

NEW QUESTION 582
How is Annualized Loss Expectancy (ALE) derived from a threat?

  • A. ARO x (SLE - EF)
  • B. SLE x ARO
  • C. AV x EF
  • D. SLE/EF

Answer: B

Explanation:
Section: Risk, Response and Recovery
Explanation/Reference:
Three steps are undertaken in a quantitative risk assessment:
Initial management approval
Construction of a risk assessment team, and
The review of information currently available within the organization.
There are a few formulas that you MUST understand for the exam. See them below:
SLE (Single Loss Expectancy)
Single loss expectancy (SLE) must be calculated to provide an estimate of loss. SLE is defined as the difference between the original value and the remaining value of an asset after a single exploit.
The formula for calculating SLE is as follows: SLE = asset value (in $) x exposure factor (loss due to successful threat exploit, as a %) Losses can include lack of availability of data assets due to data loss, theft, alteration, or denial of service (perhaps due to business continuity or security issues).
ALE (Annualized Loss Expectancy)
Next, the organization would calculate the annualized rate of occurrence (ARO).
This is done to provide an accurate calculation of annualized loss expectancy (ALE).
ARO is an estimate of how often a threat will be successful in exploiting a vulnerability over the period of a year.
When this is completed, the organization calculates the annualized loss expectancy (ALE).
The ALE is a product of the yearly estimate for the exploit (ARO) and the loss in value of an asset after an SLE.
The calculation follows ALE = SLE x ARO
Note that this calculation can be adjusted for geographical distances using the local annual frequency estimate (LAFE) or the standard annual frequency estimate (SAFE). Given that there is now a value for SLE, it is possible to determine what the organization should spend, if anything, to apply a countermeasure for the risk in question.
Remember that no countermeasure should be greater in cost than the risk it mitigates, transfers, or avoids.
Countermeasure cost per year is easy and straightforward to calculate. It is simply the cost of the countermeasure divided by the years of its life (i.e., use within the organization). Finally, the organization is able to compare the cost of the risk versus the cost of the countermeasure and make some objective decisions regarding its countermeasure selection.
The following were incorrect answers:
All of the other choices were incorrect.
The following reference(s) were used for this quesiton:
Hernandez CISSP, Steven (2012-12-21). Official (ISC)2 Guide to the CISSP CBK, Third Edition ((ISC)2 Press) (Kindle Locations 10048-10069). Auerbach Publications. Kindle Edition.

 

NEW QUESTION 583
Which of the following issues is not addressed by digital signatures?

  • A. authentication
  • B. data integrity
  • C. nonrepudiation
  • D. denial-of-service

Answer: D

Explanation:
Explanation/Reference:
A digital signature directly addresses both confidentiality and integrity of the CIA triad. It does not directly address availability, which is what denial-of-service attacks.
The other answers are not correct because:
"nonrepudiation" is not correct because a digital signature can provide for nonrepudiation.
"authentication" is not correct because a digital signature can be used as an authentication mechanism
"data integrity" is not correct because a digital signature does verify data integrity (as part of nonrepudiation)
References:
Official ISC2 Guide page: 227 & 265
All in One Third Edition page: 648

 

NEW QUESTION 584
Which of the following groups represents the leading source of computer crime losses?

  • A. Employees
  • B. Industrial saboteurs
  • C. Foreign intelligence officers
  • D. Hackers

Answer: A

Explanation:
Section: Risk, Response and Recovery
Explanation/Reference:
There are some conflicting figures as to which group is a bigger threat hackers or employees. Employees are still considered to the leading source of computer crime losses. Employees often have an easier time gaining access to systems or source code then ousiders or other means of creating computer crimes.
A word of caution is necessary: although the media has tended to portray the threat of cybercrime as existing almost exclusively from the outside, external to a company, reality paints a much different picture. Often the greatest risk of cybercrime comes from the inside, namely, criminal insiders. Information security professionals must be particularly sensitive to the phenomena of the criminal or dangerous insider, as these individuals usually operate under the radar, inside of the primarily outward/external facing security controls, thus significantly increasing the impact of their crimes while leaving few, if any, audit trails to follow and evidence for prosecution.
Some of the large scale crimes committed agains bank lately has shown that Internal Threats are the worst and they are more common that one would think. The definition of what a hacker is can vary greatly from one country to another but in some of the states in the USA a hacker is defined as Someone who is using resources in a way that is not authorized. A recent case in Ohio involved an internal employee who was spending most of his day on dating website looking for the love of his life. The employee was taken to court for hacking the company resources.
The following answers are incorrect:
hackers. Is incorrect because while hackers represent a very large problem and both the frequency of attacks and overall losses have grown hackers are considered to be a small segment of combined computer fraudsters.
industrial saboteurs. Is incorrect because industrial saboteurs tend to go after trade secrets. While the loss to the organization can be great, they still fall short when compared to the losses created by employees. Often it is an employee that was involved in industrial sabotage.
foreign intelligence officers. Is incorrect because the losses tend to be national secrets. You really can't put t cost on this and the number of frequency and occurances of this is less than that of employee related losses.
Reference(s) used for this question:
Hernandez CISSP, Steven (2012-12-21). Official (ISC)2 Guide to the CISSP CBK, Third Edition ((ISC)2 Press) (Kindle Locations 22327-22331). Auerbach Publications. Kindle Edition.

 

NEW QUESTION 585
Which type of password token involves time synchronization?

  • A. Synchronous dynamic password tokens
  • B. Challenge-response tokens
  • C. Static password tokens
  • D. Asynchronous dynamic password tokens

Answer: A

Explanation:
Synchronous dynamic password tokens generate a new unique password value at fixed time intervals, so the server and token need to be synchronized for the password to be accepted. Source: KRUTZ, Ronald L. & VINES, Russel D., The CISSP Prep Guide: Mastering the
Ten Domains of Computer Security, John Wiley & Sons, 2001, Chapter 2: Access control
systems (page 37).
Also check out: HARRIS, Shon, All-In-One CISSP Certification Exam Guide, McGraw-
Hill/Osborne, 2002, chapter 4: Access Control (page 136).

 

NEW QUESTION 586
Which OSI/ISO layers are TCP and UDP implemented at?

  • A. Presentation layer
  • B. Session layer
  • C. Transport layer
  • D. Application layer

Answer: C

Explanation:
TCP and UDP are implemented at the transport layer (layer 4).
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 82).

 

NEW QUESTION 587
Which one of the following factors is NOT one on which Authentication is based?

  • A. Type 3. Something you are (based upon one or more intrinsic physical or behavioral traits), such as a fingerprint or retina scan
  • B. Type 4. Something you are, such as a system administrator or security administrator
  • C. Type 2. Something you have, such as an ATM card or smart card
  • D. Type 1. Something you know, such as a PIN or password

Answer: B

Explanation:
Authentication is based on the following three factor types:
Type 1. Something you know, such as a PIN or password
Type 2. Something you have, such as an ATM card or smart card
Type 3. Something you are (Unique physical characteristic), such as a fingerprint or retina
scan
Source: KRUTZ, Ronald L. & VINES, Russel D., The CISSP Prep Guide: Mastering the
Ten Domains of Computer Security, 2001, John Wiley & Sons, Page 36.
Also: HARRIS, Shon, All-In-One CISSP Certification Exam Guide, McGraw-Hill/Osborne,
2002, chapter 4: Access Control (pages 132-133).

 

NEW QUESTION 588
Why should batch files and scripts be stored in a protected area?

  • A. Because they may contain credentials.
  • B. Because of the least privilege concept.
  • C. Because they cannot be accessed by operators.
  • D. Because of the need-to-know concept.

Answer: A

Explanation:
Explanation/Reference:
Because scripts contain credentials, they must be stored in a protected area and the transmission of the scripts must be dealt with carefully. Operators might need access to batch files and scripts. The least privilege concept requires that each subject in a system be granted the most restrictive set of privileges needed for the performance of authorized tasks. The need-to-know principle requires a user having necessity for access to, knowledge of, or possession of specific information required to perform official tasks or services.
Source: WALLHOFF, John, CISSP Summary 2002, April 2002, CBK#1 Access Control System & Methodology (page 3)

 

NEW QUESTION 589
____________ is used in mission critical systems and applications to lock down information based on sensitivity levels (Confidential, Top Secret, etc..

  • A. LAC - Limited Access Control
  • B. SAC - Strategic Access Control
  • C. DAC - Discretionary Access Control
  • D. MAC - Mandatory Access Control

Answer: D

 

NEW QUESTION 590
Which of the following pairings uses technology to enforce access control policies?

  • A. Preventive/Administrative
  • B. Detective/Administrative
  • C. Preventive/Technical
  • D. Preventive/Physical

Answer: C

Explanation:
Explanation/Reference:
The preventive/technical pairing uses technology to enforce access control policies.
TECHNICAL CONTROLS
Technical security involves the use of safeguards incorporated in computer hardware, operations or applications software, communications hardware and software, and related devices. Technical controls are sometimes referred to as logical controls.
Preventive Technical Controls
Preventive technical controls are used to prevent unauthorized personnel or programs from gaining remote access to computing resources. Examples of these controls include:
Access control software.
Antivirus software.
Library control systems.
Passwords.
Smart cards.
Encryption.
Dial-up access control and callback systems.
Preventive Physical Controls
Preventive physical controls are employed to prevent unauthorized personnel from entering computing facilities (i.e., locations housing computing resources, supporting utilities, computer hard copy, and input data media) and to help protect against natural disasters. Examples of these controls include:
Backup files and documentation.
Fences.
Security guards.
Badge systems.
Double door systems.
Locks and keys.
Backup power.
Biometric access controls.
Site selection.
Fire extinguishers.
Preventive Administrative Controls
Preventive administrative controls are personnel-oriented techniques for controlling people's behavior to ensure the confidentiality, integrity, and availability of computing data and programs. Examples of preventive administrative controls include:
Security awareness and technical training.
Separation of duties.
Procedures for recruiting and terminating employees.
Security policies and procedures.
Supervision.
Disaster recovery, contingency, and emergency plans.
User registration for computer access.
Source: KRUTZ, Ronald L. & VINES, Russel D., The CISSP Prep Guide: Mastering the Ten Domains of Computer Security, 2001, John Wiley & Sons, Page 34.

 

NEW QUESTION 591
In the context of Biometric authentication, what is a quick way to compare the accuracy of devices. In general, the device that have the lowest value would be the most accurate. Which of the following would be used to compare accuracy of devices?

  • A. the FAR is used
  • B. the FRR is used
  • C. the FER is used
  • D. the CER is used.

Answer: D

Explanation:
Section: Access Control
Explanation/Reference:
equal error rate or crossover error rate (EER or CER): the rate at which both accept and reject errors are equal. The value of the EER can be easily obtained from the ROC curve. The EER is a quick way to compare the accuracy of devices with different ROC curves. In general, the device with the lowest EER is most accurate.
In the context of Biometric Authentication almost all types of detection permit a system's sensitivity to be increased or decreased during an inspection process. If the system's sensitivity is increased, such as in an airport metal detector, the system becomes increasingly selective and has a higher False Reject Rate (FRR).
Conversely, if the sensitivity is decreased, the False Acceptance Rate (FAR) will increase.
Thus, to have a valid measure of the system performance, the CrossOver Error Rate (CER) is used.
The following are used as performance metrics for biometric systems:
false accept rate or false match rate (FAR or FMR): the probability that the system incorrectly matches the input pattern to a non-matching template in the database. It measures the percent of invalid inputs which are incorrectly accepted. In case of similarity scale, if the person is imposter in real, but the matching score is higher than the threshold, then he is treated as genuine that increase the FAR and hence performance also depends upon the selection of threshold value.
false reject rate or false non-match rate (FRR or FNMR): the probability that the system fails to detect a match between the input pattern and a matching template in the database. It measures the percent of valid inputs which are incorrectly rejected.
failure to enroll rate (FTE or FER): the rate at which attempts to create a template from an input is unsuccessful. This is most commonly caused by low quality inputs.
failure to capture rate (FTC): Within automatic systems, the probability that the system fails to detect a biometric input when presented correctly.
template capacity: the maximum number of sets of data which can be stored in the system.
Reference(s) used for this question:
KRUTZ, Ronald L. & VINES, Russel D., The CISSP Prep Guide: Mastering the Ten Domains of Computer Security, 2001, John Wiley & Sons, Page 37.
and
Wikipedia at: https://en.wikipedia.org/wiki/Biometrics

 

NEW QUESTION 592
Which of the following questions is less likely to help in assessing physical access controls?

  • A. Are visitors to sensitive areas signed in and escorted?
  • B. Does management regularly review the list of persons with physical access to sensitive facilities?
  • C. Are keys or other access devices needed to enter the computer room and media library?
  • D. Is the operating system configured to prevent circumvention of the security software and application controls?

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 access controls except for the one regarding operating system configuration, which is a logical access 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 593
Which OSI/ISO layer is responsible for determining the best route for data to be transferred?

  • A. Transport layer
  • B. Network layer
  • C. Session layer
  • D. Physical layer

Answer: B

Explanation:
The main responsibility of the network layer is to insert information into the packet's header so that it can be properly routed. The protocols at the network layer must determine the best path for the packet to take.
The following answers are incorrect:
Session layer. The session layer is responsible for establishing a connection between two applications.
Physical layer. The physical layer if responsible for converting electronic impulses into bits
and vice-versa.
Transport layer. The transport layer is responsible for data transmission and error
detection.
The following reference(s) were/was used to create this question:
Source: HARRIS, Shon, All-In-One CISSP Certification Exam Guide, McGraw-
Hill/Osborne, v3, chapter 7: Telecommunications and Network Security (page 422-428). ISC2 Official ISC2 Guide to the CBK (OIG) 2007, p. 409-412

 

NEW QUESTION 594
Which of the following statements relating to the Bell-LaPadula security model is FALSE (assuming the Strong Star property is not being used) ?

  • A. The property restriction can be escaped by temporarily downgrading a high level subject.
  • B. It is restricted to confidentiality.
  • C. A subject is not allowed to read down.
  • D. A subject is not allowed to read up.

Answer: C

Explanation:
Section: Access Control
Explanation/Reference:
It is not a property of Bell LaPadula model.
The other answers are incorrect because:
A subject is not allowed to read up is a property of the 'simple security rule' of Bell LaPadula model.
The property restriction can be escaped by temporarily downgrading a high level subject can be escaped by temporarily downgrading a high level subject or by identifying a set of trusted objects which are permitted to violate the property as long as it is not in the middle of an operation.
It is restricted to confidentiality as it is a state machine model that enforces the confidentiality aspects of access control.
Reference: Shon Harris AIO v3 , Chapter-5 : Security Models and Architecture , Page:279-282

 

NEW QUESTION 595
Which one of the following is usually not a benefit resulting from the use of firewalls?

  • A. allows centralized management and control of services.
  • B. prevents the spread of viruses.
  • C. reduces the threat level on internal system.
  • D. reduces the risks of external threats from malicious hackers.

Answer: B

Explanation:
Explanation/Reference:
This is not a benefit of a firewall. Most firewalls are limited when it comes to preventing the spread of viruses.
This question is testing your knowledge of Malware and Firewalls. The keywords within the questions are
"usually" and "virus". Once again to come up with the correct answer, you must stay within the context of the question and really ask yourself which of the 4 choices is NOT usually done by a firewall.
Some of the latest Appliances such as Unified Threat Management (UTM) devices does have the ability to do virus scanning but most first and second generation firewalls would not have such ability. Remember, the questions is not asking about all possible scenarios that could exist but only about which of the 4 choices presented is the BEST.
For the exam you must know your general classes of Malware. There are generally four major classes of malicious code that fall under the general definition of malware:
1. Virus: Parasitic code that requires human action or insertion, or which attaches itself to another program to facilitate replication and distribution. Virus-infected containers can range from e-mail, documents, and data file macros to boot sectors, partitions, and memory fobs. Viruses were the first iteration of malware and were typically transferred by floppy disks (also known as "sneakernet") and injected into memory when the disk was accessed or infected files were transferred from system to system.
2. Worm: Self-propagating code that exploits system or application vulnerabilities to replicate. Once on a system, it may execute embedded routines to alter, destroy, or monitor the system on which it is running, then move on to the next system. A worm is effectively a virus that does not require human interaction or other programs to infect systems.
3. Trojan Horse: Named after the Trojan horse of Greek mythology (and serving a very similar function), a Trojan horse is a general term referring to programs that appear desirable, but actually contain something harmful. A Trojan horse purports to do one thing that the user wants while secretly performing other potentially malicious actions. For example, a user may download a game file, install it, and begin playing the game. Unbeknownst to the user, the application may also install a virus, launch a worm, or install a utility allowing an attacker to gain unauthorized access to the system remotely, all without the user's knowledge.
4. Spyware: Prior to its use in malicious activity, spyware was typically a hidden application injected through poor browser security by companies seeking to gain more information about a user's Internet activity. Today, those methods are used to deploy other malware, collect private data, send advertising or commercial messages to a system, or monitor system input, such as keystrokes or mouse clicks.
The following answers are incorrect:
reduces the risks of external threats from malicious hackers. This is incorrect because a firewall can reduce the risks of external threats from malicious hackers.
reduces the threat level on internal system. This is incorrect because a firewall can reduce the threat level on internal system.
allows centralized management and control of services. This is incorrect because a firewall can allow centralize management and control of services.
Reference(s) used for this question:
Hernandez CISSP, Steven (2012-12-21). Official (ISC)2 Guide to the CISSP CBK, Third Edition ((ISC)2 Press) (Kindle Locations 3989-4009). Auerbach Publications. Kindle Edition.

 

NEW QUESTION 596
What do the ILOVEYOU and Melissa virus attacks have in common?

  • A. They have nothing in common.
  • B. They are both social engineering attacks.
  • C. They are both masquerading attacks.
  • D. They are both denial-of-service (DOS) attacks.

Answer: C

Explanation:
Explanation/Reference:
While a masquerading attack can be considered a type of social engineering, the Melissa and ILOVEYOU viruses are examples of masquerading attacks, even if it may cause some kind of denial of service due to the web server being flooded with messages. In this case, the receiver confidently opens a message coming from a trusted individual, only to find that the message was sent using the trusted party's identity.
Source: HARRIS, Shon, All-In-One CISSP Certification Exam Guide, McGraw-Hill/Osborne, 2002, Chapter
10: Law, Investigation, and Ethics (page 650).

 

NEW QUESTION 597
......

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