Which of the following implementation modes would provide
the GREATEST amount of security for outbound data connecting
to the Internet?
A. Transport mode with authentication header plus
encapsulating security payload (ESP)
B. Secure socket layer (SSL) mode
C. Tunnel mode with AH plus ESP
D. Triple-DES encryption mode
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Answer: C
Tunnel mode provides protection to the entire IP package. To
accomplish this, AH and ESP services can be nested. The
transport mode provides primary protection for the higher
layers of the protocols by extending protection to the data
fields (payload) of an IP package. The SSL (secure socket
layer) mode, provides security to the higher communication
layers (transport layer). The triple-DES encryption mode is
an algorithm that provides confidentiality.
| Is This Answer Correct ? | 7 Yes | 0 No |
An IS auditor evaluating data integrity in a transaction driven system environment should review atomicity, to determine whether: A. the database survives failures (hardware or software). B. each transaction is separated from other transactions. C. integrity conditions are maintained. D. a transaction is completed or not, or a database is updated or not.
An IS auditor discovers that programmers have update access to the live environment. In this situation, the IS auditor is LEAST likely to be concerned that programmers can: A. authorize transactions. B. add transactions directly to the database. C. make modifications to programs directly. D. access data from live environment and provide faster maintenance.
Which of the following controls is LEAST likely to detect changes made online to master records? A. Update access to master file is restricted to a supervisor independent of data entry. B. Clerks enter updates online and are finalized by an independent supervisor. C. An edit listing of all updates is produced daily and reviewed by an independent supervisor. D. An update authorization form must be approved by an independent supervisor before entry.
Which of the following is an output control objective? A. Maintenance of accurate batch registers B. Completeness of batch processing C. Appropriate accounting for rejections and exceptions D. Authorization of file updates
Which of the following is the FIRST thing an IS auditor should do after the discovery of a trojan horse program in a computer system? A. Investigate the author. B. Remove any underlying threats. C. Establish compensating controls. D. Have the offending code removed.
Which of the following BEST describes the objectives of following a standard system development methodology? A. To ensure that appropriate staffing is assigned and to provide a method of controlling costs and schedules B. To provide a method of controlling costs and schedules and to ensure communication among users, IS auditors, management and IS personnel C. To provide a method of controlling costs and schedules and an effective means of auditing project development D. To ensure communication among users, IS auditors, management and personnel and to ensure that appropriate staffing is assigned
When reviewing the implementation of a LAN the IS auditor should FIRST review the: A. node list. B. acceptance test report. C. network diagram. D. user's list.
A database administrator is responsible for: A. defining data ownership. B. establishing operational standards for the data dictionary. C. creating the logical and physical database. D. establishing ground rules for ensuring data integrity and security.
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.
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
An IS auditor has just completed a review of an organization that has a mainframe and a client-server environment where all production data reside. Which of the following weaknesses would be considered the MOST serious? A. The security officer also serves as the database administrator (DBA.) B. Password controls are not administered over the client/server environment. C. There is no business continuity plan for the mainframe system?s non-critical applications. D. Most LANs do not back up file server fixed disks regularly.
Which of the following exposures associated with the spooling of sensitive reports for offline printing would an IS auditor consider to be the MOST serious? A. Sensitive data can be read by operators. B. Data can be amended without authorization. C. Unauthorized report copies can be printed. D. Output can be lost in the event of system failure.
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