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In a data warehouse, data quality is achieved by:
A. cleansing.
B. restructuring.
C. source data credibility.
D. transformation.
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Answer: C
In a data warehouse system the quality of data depends on
the quality of the originating source. Choices A, B and D
relate to the composition of a data warehouse and do not
affect data quality. Restructuring, transformation and
cleansing all relate to reorganization of existing data
within the database.
| Is This Answer Correct ? | 2 Yes | 0 No |
Which of the following is the MOST important objective of data protection? A. Identifying persons who need access to information B. Ensuring the integrity of information C. Denying or authorizing access to the IS system D. Monitoring logical accesses
Which of the following is the MOST effective technique for providing security during data transmission? A. Communication log B. Systems software log C. Encryption D. Standard protocol
Which of the following should be of MOST concern to an IS auditor? A. Lack of reporting of a successful attack on the network B. Failure to notify police of an attempted intrusion C. Lack of periodic examination of access rights D. Lack of notification to the public of an intrusion
In a risk-based audit approach, an IS auditor should FIRST complete :
In planning an audit, the MOST critical step is the identification of the:
In reviewing the IS short-range (tactical) plan, the IS auditor should determine whether: A. there is an integration of IS and business staffs within projects. B. there is a clear definition of the IS mission and vision. C. there is a strategic information technology planning methodology in place. D. the plan correlates business objectives to IS goals and objectives.
As updates to an online order entry system are processed, the updates are recorded on a transaction tape and a hard-copy transaction log. At the end of the day, the order entry files are backed up on tape. During the backup procedure, a drive malfunctions and the order entry files are lost. Which of the following are necessary to restore these files? A. The previous day's backup file and the current transaction tape B. The previous day's transaction file and the current transaction tape C. The current transaction tape and the current hard-copy transaction log D. The current hard-copy transaction log and the previous day's transaction file
An IS auditor attempting to determine whether access to program documentation is restricted to authorized persons would MOST likely: A. evaluate the record retention plans for off-premises storage. B. interview programmers about the procedures currently being followed. C. compare utilization records to operations schedules. D. review data file access records to test the librarian function.
The security level of a private key system depends on the number of: A. encryption key bits. B. messages sent. C. keys. D. channels used.
A TCP/IP-based environment is exposed to the Internet. Which of the following BEST ensures that complete encryption and authentication protocols exist for protecting information while transmitted? A. Work is completed in tunnel mode with IP security using the nested services of authentication header (AH) and encapsulating security payload (ESP). B. A digital signature with RSA has been implemented. C. Digital certificates with RSA are being used. D. Work is being completed in.TCP services.
Applying a digital signature to data traveling in a network provides: A. confidentiality and integrity. B. security and nonrepudiation. C. integrity and nonrepudiation. D. confidentiality and nonrepudiation.
An organization is experiencing a growing backlog of undeveloped applications. As part of a plan to eliminate this backlog, end-user computing with prototyping, supported by the acquisition of an interactive application generator system is being introduced. Which of the following areas is MOST critical to the ultimate success of this venture? A. Data control B. Systems analysis C. Systems programming D. Application programming
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