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Answer: A

The security level of a private key system depends on the
number of encryption key bits. The larger the number of
bits, the more difficult it would be to understand or
determine the algorithm. The security of the message will
depend on the encryption key bits used. More than keys by
themselves, it's the algorithm and its complexity, which
make the content more secured. Channels, which could be open
or secure, are the mode for sending the message.

An IS auditor is reviewing the database administration function to ascertain whether adequate provision has been made for controlling data. The IS auditor should determine that the: A. function reports to data processing operations. B. responsibilities of the function are well defined. C. database administrator is a competent systems programmer. D. audit software has the capability of efficiently accessing the database.

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An IS auditor reviewing the key roles and responsibilities of the database administrator (DBA) is LEAST likely to expect the job description of the DBA to include: A. defining the conceptual schema. B. defining security and integrity checks. C. liaising with users in developing data model. D. mapping data model with the internal schema.

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Which of the following types of controls is designed to provide the ability to verify data and record values through the stages of application processing? A. Range checks B. Run-to-run totals C. Limit checks on calculated amounts D. Exception reports

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A primary reason for an IS auditor's involvement in the development of a new application system is to ensure that: A. adequate controls are built into the system. B. user requirements are satisfied by the system. C. sufficient hardware is available to process the system. D. data are being developed for pre-implementation testing of the system.

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Applying a retention date on a file will ensure that: A. data cannot be read until the date is set. B. data will not be deleted before that date. C. backup copies are not retained after that date. D. datasets having the same name are differentiated.

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Which of the following network configuration options contains a direct link between any two host machines? A. Bus B. Ring C. Star D. Completely connected (mesh)

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The responsibility, authority and accountability of the IS audit function is documented appropriately in an audit charter and MUST be: A. approved by the highest level of management. B. approved by audit department management. C. approved by user department management. D. changed every year before commencement of IS audits.

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Which of the following types of controls is designed to provide the ability to verify data and record values through the stages of application processing? A. Range checks B. Run-to-run totals C. Limit checks on calculated amounts D. Exception reports

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Which of the following is a strength of a client-server security system? A. Change control and change management procedures are inherently strong. B. Users can manipulate data without controlling resources on the mainframe. C. Network components seldom become obsolete. D. Access to confidential data or data manipulation is controlled tightly.

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Which of the following is an objective of a control self-assessment (CSA) program? A. Concentration on areas of high risk B. Replacement of audit responsibilities C. Completion of control questionnaires D. Collaborative facilitative workshops

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If inadequate, which of the following would be the MOST likely contributor to a denial-of-service attack? A. Router configuration and rules B. Design of the internal network C. Updates to the router system software D. Audit testing and review techniques

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Which of the following is the MOST effective type of antivirus software? A. Scanners B. Active monitors C. Integrity checkers D. Vaccines

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