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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Governance and Management of IT | 18% | - IT Management
|
| Topic 2: Information Systems Auditing Process | 18% | - Planning
|
| Topic 3: Information Systems Acquisition, Development and Implementation | 12% | - Information Systems Acquisition and Development
|
| Topic 4: Protection of Information Assets | 26% | - Information Asset Security and Control
|
| Topic 5: Information Systems Operations and Business Resilience | 26% | - Business Resilience
|
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NEW QUESTION # 1347
Which of the following is the BEST way to mitigate the impact of ransomware attacks?
Answer: A
NEW QUESTION # 1348
Which of the following would provide an IS auditor with the GREATEST assurance that data disposal controls support business strategic objectives?
Answer: B
Explanation:
Data disposal controls are the measures that ensure that data are securely and permanently erased or destroyed when they are no longer needed or authorized to be retained. Data disposal controls support business strategic objectives by reducing the risk of data breaches, complying with data privacy regulations, optimizing the use of storage resources, and enhancing the reputation and trust of the organization1.
A media sanitization policy is a document that defines the roles, responsibilities, procedures, and standards for sanitizing different types of media that contain sensitive or confidential data. Media sanitization is the process of removing or modifying data on a media device to make it unreadable or unrecoverable by any means. Media sanitization can be achieved by various methods, such as overwriting, degaussing, encryption, or physical destruction2.
A media sanitization policy would provide an IS auditor with the greatest assurance that data disposal controls support business strategic objectives because it demonstrates that the organization has a clear and consistent approach to protect its data from unauthorized access or disclosure throughout the data life cycle. A media sanitization policy also helps the organization to comply with various data privacy regulations, such as the EU General Data Protection Regulation (GDPR), the US Health Insurance Portability and Accountability Act (HIPAA), or the Payment Card Industry Data Security Standard (PCI DSS), that require proper disposal of personal or sensitive data3.
The other options are not as effective as a media sanitization policy in providing assurance that data disposal controls support business strategic objectives. A media recycling policy is a document that defines the criteria and procedures for reusing media devices that have been sanitized or erased. A media recycling policy can help the organization to save costs and reduce environmental impact, but it does not address how the data are disposed of in the first place4. A media labeling policy is a document that defines the rules and standards for labeling media devices that contain sensitive or confidential data. A media labeling policy can help the organization to identify and classify its data assets, but it does not specify how the data are sanitized or destroyed when they are no longer needed. A media shredding policy is a document that defines the methods and procedures for physically destroying media devices that contain sensitive or confidential data. A media shredding policy can be a part of a media sanitization policy, but it is not sufficient to cover all types of media devices or data disposal scenarios.
References:
* ISACA, CISA Review Manual, 27th Edition, 2019
* ISACA, CISA Review Questions, Answers & Explanations Database - 12 Month Subscription
* Secure Data Disposal and Destruction: 6 Methods to Follow1
* Why (and How to) Dispose of Digital Data2
* What is Data Disposition? The Complete Guide3
* Data Disposition: What is it and why should it be part of your data retention policy?
NEW QUESTION # 1349
Which of the following would be of concern when determining if information assets are adequately safeguard during transport and disposal?
Answer: B
NEW QUESTION # 1350
Which of the following cryptography options would increase overhead/cost?
Answer: A
Explanation:
Explanation/Reference:
Explanation:
Computer processing time is increased for longer asymmetric encryption keys, and the increase may be disproportionate. For example, one benchmark showed that doubling the length of an RSA key from 512 bits to 1,024 bits caused the decrypt time to increase nearly six-fold. An asymmetric algorithm requires more processing time than symmetric algorithms. A hash is shorter than the original message; therefore, a smaller overhead is required if the hash is encrypted rather than the message. Use of asecret key, as a symmetric encryption key, is generally small and used for the purpose of encrypting user data.
NEW QUESTION # 1351
Which of the following is the process of feeding test data into two systems - the modified system and alternative system and comparing the result?
Answer: D
Explanation:
Section: Information System Acquisition, Development and Implementation Explanation:
Parallel testing is the process of feeding test data into two systems - the modified system and an alternative system and comparing the result.
For CISA exam you should know below mentioned types of testing
Alpha and Beta Testing - An alpha version is early version is an early version of the application system submitted to the internal user for testing. The alpha version may not contain all the features planned for the final version. Typically, software goes to two stages testing before it consider finished. The first stage is called alpha testing is often performed only by the user within the organization developing the software. The second stage is called beta testing, a form of user acceptance testing, generally involves a limited number of external users. Beta testing is the last stage of testing, and normally involves real world exposure, sending the beta version of the product to independent beta test sites or offering it free to interested user.
Pilot Testing - A preliminary test that focuses on specific and predefined aspect of a system. It is not meant to replace other testing methods, but rather to provide a limited evaluation of the system. Proof of concept are early pilot tests - usually over interim platform and with only basic functionalities.
White box testing - Assess the effectiveness of a software program logic. Specifically, test data are used in determining procedural accuracy or conditions of a program's specific logic path. However, testing all possible logical path in large information system is not feasible and would be cost prohibitive, and therefore is used on selective basis only.
Black Box Testing - An integrity based form of testing associated with testing components of an information system's "functional" operating effectiveness without regards to any specific internal program structure. Applicable to integration and user acceptance testing.
Function/validation testing - It is similar to system testing but it is often used to test the functionality of the system against the detailed requirements to ensure that the software that has been built is traceable to customer requirements.
Regression Testing - The process of rerunning a portion of a test scenario or test plan to ensure that changes or corrections have not introduced new errors. The data used in regression testing should be same as original data.
Parallel Testing - This is the process of feeding test data into two systems - the modified system and an alternative system and comparing the result.
Sociability Testing - The purpose of these tests is to confirm that new or modified system can operate in its target environment without adversely impacting existing system. This should cover not only platform that will perform primary application processing and interface with other system but, in a client server and web development, changes to the desktop environment. Multiple application may run on the user's desktop, potentially simultaneously, so it is important to test the impact of installing new dynamic link libraries (DLLs ) , making operating system registry or configuration file modification, and possibly extra memory utilization.
The following were incorrect answers:
Regression Testing - The process of returning a portion of a test scenario or test plan to ensure that changes or corrections have not introduced new errors. The data used in regression testing should be same as original data.
Black Box Testing - An integrity based form of testing associated with testing components of an information system's "functional" operating effectiveness without regards to any specific internal program structure. Applicable to integration and user acceptance testing.
Pilot Testing - A preliminary test that focuses on specific and predefined aspect of a system. It is not meant to replace other testing methods, but rather to provide a limited evaluation of the system. Proof of concept are early pilot tests - usually over interim platform and with only basic functionalities Reference:
CISA review manual 2014 Page number 167
NEW QUESTION # 1352
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