QUESTION: 202

Which of the following is the most secure method of authentication?

Biometrics
Username and password
Anonymous
Smart card

Answer(s): A

Explanation:

Biometrics is a method of authentication that uses physical characteristics, such as fingerprints, scars, retinal patterns, and other forms of biophysical qualities to identify a user. Nowadays, the usage of biometric devices such as hand scanners and retinal scanners is becoming more common in the business environment. It is the most secure method of authentication. Answer B is incorrect. Username and password is the least secure method of authentication in comparison of smart card and biometrics authentication. Username and password can be intercepted. Answer D is incorrect. Smart card authentication is not as reliable as biometrics authentication. Answer C is incorrect. Anonymous authentication does not provide security as a user can log on to the system anonymously and he is not prompted for credentials.

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QUESTION: 203

Maria has been recently appointed as a Network Administrator in Gentech Inc. She has been tasked to perform network security testing to find out the vulnerabilities and shortcomings of the present network infrastructure. Which of the following testing approaches will she apply to accomplish this task?

Gray-box testing
White-box testing
Black-box testing
Unit testing

Answer(s): C

Explanation:

Maria is new for this organization and she does not have any idea regarding the present infrastructure. Therefore, black box testing is best suited for her. Blackbox testing is a technique in which the testing team has no knowledge about the infrastructure of the organization. The testers must first determine the location and extent of the systems before commencing their analysis. This testing technique is costly and time consuming. Answer B is incorrect. White box testing, also known as Clear box or Glass box testing, takes into account the internal mechanism of a system or application. The connotations of "Clear box" and "Glass box" indicate that a tester has full visibility of the internal workings of the system. It uses knowledge of the internal structure of an application. It is applicable at the unit, integration, and system levels of the software testing process. It consists of the following testing methods: Control flow-based testing Create a graph from source code. Describe the flow of control through the control flow graph. Design test cases to cover certain elements of the graph. Data flow-based testing Test connections between variable definitions. Check variation of the control flow graph. Set DEF (n) contains variables that are defined at node n. Set USE (n) are variables that are read. Answer A is incorrect. Graybox testing is a combination of whitebox testing and blackbox testing. In graybox testing, the test engineer is equipped with the knowledge of system and designs test cases or test data based on system knowledge. The security tester typically performs graybox testing to find vulnerabilities in software and network system. Answer D is incorrect. Unit testing is a type of testing in which each independent unit of an application is tested separately. During unit testing, a developer takes the smallest unit of an application, isolates it from the rest of the application code, and tests it to determine whether it works as expected. Unit testing is performed before integrating these independent units into modules. The most common approach to unit testing requires drivers and stubs to be written. Drivers and stubs are programs. A driver simulates a calling unit, and a stub simulates a called unit.

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QUESTION: 204

Which of the following processes identifies the threats that can impact the business continuity of operations?

Function analysis
Risk analysis
Business impact analysis
Requirement analysis

Answer(s): C

Explanation:

A business impact analysis (BIA) is a crisis management and business impact analysis technique that identifies those threats that can impact the business continuity of operations. Such threats can be either natural or man-made. The BIA team should have a clear understanding of the organization, key business processes, and IT resources for assessing the risks associated with continuity. In the BIA team, there should be senior management, IT personnel, and end users to identify all resources that are to be used during normal operations. Answer B is incorrect. Risk analysis is the science of risks and their probability and evaluation in a business or a process. It is an important factor in security enhancement and prevention in a system. Risk analysis should be performed as part of the risk management process for each project. The outcome of the risk analysis would be the creation or review of the risk register to identify and quantify risk elements to the project and their potential impact. Answer A is incorrect. The functional analysis process is used for converting system requirements into a comprehensive function standard. Verification is the result of the functional analysis process, in which the fundamentals of a system level functional architecture are defined adequately to allow for synthesis in the design phase. The functional analysis breaks down the higher-level functions into the lower level functions. Answer D is incorrect. Requirements analysis encompasses the tasks that go into determining the needs or conditions to meet for a new or altered product, taking account of the possibly conflicting requirements of the various stakeholders.

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QUESTION: 205

The Phase 3 of DITSCAP C&A is known as Validation. The goal of Phase 3 is to validate that the preceding work has produced an IS that operates in a specified computing environment. What are the process activities of this phase? Each correct answer represents a complete solution. Choose all that apply.

Certification and accreditation decision
Continue to review and refine the SSAA
Perform certification evaluation of the integrated system
System development
Develop recommendation to the DAA

Answer(s): A,B,C,E

Explanation:

The Phase 3 of DITSCAP C&A is known as Validation. The goal of Phase 3 is to validate that the preceding work has produced an IS that operates in a specified computing environment. The process activities of this phase are as follows: Continue to review and refine the SSAA Perform certification evaluation of the integrated system Develop recommendation to the DAA Certification and accreditation decision Answer D is incorrect. System development is a Phase 2 activity.

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QUESTION: 202

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QUESTION: 203

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QUESTION: 204

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QUESTION: 205

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