Which of the following is the MOST reliable sender
authentication method?
A. Digital signatures
B. Asymmetric cryptography
C. Digital certificates
D. Message authentication code
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Answer: C
Digital certificates are issued by a trusted third party.
The message sender attaches the certificate rather than the
public key and can verify authenticity with the certificate
repository. Asymmetric cryptography is vulnerable to a
man-in-the-middle attack. Digital certificates are used for
confidentiality. Message authentication code is used for
message integrity verification.
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The PRIMARY advantage of a continuous audit approach is that it: A. does not require an IS auditor to collect evidence on system reliability while processing is taking place. B. requires the IS auditor to review and follow up immediately on all information collected. C. can improve system security when used in time-sharing environments that process a large number of transactions. D. does not depend on the complexity of an organization's computer systems.
During an audit of the tape management system at a data center, an IS auditor discovered that parameters are set to bypass or ignore the labels written on tape header records. The IS auditor also determined that effective staging and job setup procedures were in place. In this situation, the IS auditor should conclude that the: A. tape headers should be manually logged and checked by the operators. B. staging and job setup procedures are not appropriate compensating controls. C. staging and job setup procedures compensate for the tape label control weakness. D. tape management system parameters must be set to check all labels.
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.
Which of the following will help detect changes made by an intruder to the system log of a server? A. Mirroring of the system log on another server B. Simultaneously duplicating the system log on a write-once disk C. Write protecting the directory containing the system log D. Storing the backup of the system log offsite
Which of the following is the FIRST step in a business process reengineering (BPR) project? A. Defining the areas to be reviewed B. Developing a project plan C. Understanding the process under review D. Reengineering and streamlining the process under review
The technique used to ensure security in virtual private networks (VPNs) is: A. encapsulation. B. wrapping. C. transform. D. encryption.
While reviewing an ongoing project, the IS auditor notes that the development team has spent eight hours of activity on the first day against a budget of 24 hours (over three days). The projected time to complete the remainder of the activity is 20 hours. The IS auditor should report that the project: A. is behind schedule. B. is ahead of schedule. C. is on schedule. D. cannot be evaluated until the activity is completed.
As a business process reengineering (BPR) project takes hold it is expected that: A. business priorities will remain stable. B. information technologies will not change. C. the process will improve product, service and profitability. D. input from clients and customers will no longer be necessary.
Facilitating telecommunications continuity by providing redundant combinations of local carrier T-1 lines, microwaves and/or coaxial cables to access the local communication loop is: A. last mile circuit protection. B. long haul network diversity. C. diverse routing. D. alternative routing.
The MAIN reason for requiring that all computer clocks across an organization be synchronized is to: A. prevent omission or duplication of transactions. B. ensure smooth data transition from client machines to servers. C. ensure that email messages have accurate time stamps. D. support the incident investigation process.
Linux is an __________ operating system
Which of the following would an IS auditor consider a weakness when performing an audit of an organization that uses a public key infrastructure with digital certificates for its business-to-consumer transactions via the Internet? A. Customers are widely dispersed geographically, but not the certificate authorities. B. Customers can make their transactions from any computer or mobile device. C. The certificate authority has several data processing subcenters to administrate certificates. D. The organization is the owner of the certificate authority.