Which of the following types of transmission media provide
the BEST security against unauthorized access?
A. Copper wire
B. Twisted pair
C. Fiber-optic cables
D. Coaxial cables
Answer / guest
Answer: C
Fiber-optic cables have proven to be more secure than the
other media. Satellite transmission and copper wire can be
violated with inexpensive equipment. Coaxial cable also can
be violated more easily than other transmission media.
| Is This Answer Correct ? | 29 Yes | 4 No |
Which of the following is a measure of the size of an information system based on the number and complexity of a system's inputs, outputs and files? A. Program evaluation review technique (PERT) B. Rapid application development (RAD) C. Function point analysis (FPA) D. Critical path method (CPM)
Which of the following functions is performed by a virtual private network (VPN)? A. Hiding information from sniffers on the net B. Enforcing security policies C. Detecting misuse or mistakes D. Regulating access
Once an organization has finished the business process reengineering (BPR) of all its critical operations, the IS auditor would MOST likely focus on a review of: A. pre-BPR process flowcharts. B. post-BPR process flowcharts. C. BPR project plans. D. continuous improvement and monitoring plans.
Which of the following would BEST ensure continuity of a wide area network (WAN) across the organization? A. Built-in alternative routing B. Full system backup taken daily C. A repair contract with a service provider D. A duplicate machine alongside each server
Which of the following is the MOST effective control over visitor access to a data center? A. Visitors are escorted. B. Visitor badges are required. C. Visitors sign in. D. Visitors are spot-checked by operators.
What is a risk associated with attempting to control physical access to sensitive areas, such as computer rooms, through card keys, locks, etc.? A. Unauthorized individuals wait for controlled doors to open and walk in behind those authorized. B. The contingency plan for the organization cannot effectively test controlled access practices. C. Access cards, keys, and pads can be easily duplicated allowing easy compromise of the control. D. Removing access for people no longer authorized is complex.
An IS auditor conducting a review of disaster recovery planning at a financial processing organization has discovered the following: * The existing disaster recovery plan was compiled two years ago by a systems analyst in the organization's IT department using transaction flow projections from the operations department. * The plan was presented to the deputy CEO for approval and formal issue, but it is still awaiting his attention. * The plan has never been updated, tested or circulated to key management and staff, though interviews show that each would know what action to take for their area in the event of a disruptive incident. The basis of an organization's disaster recovery plan is to reestablish live processing at an alternative site where a similar, but not identical hardware configuration is already established. The IS auditor should: A. take no action as the lack of a current plan is the only significant finding. B. recommend that the hardware configuration at each site should be identical. C. perform a review to verify that the second configuration can support live processing. D. report that the financial expenditure on the alternative site is wasted without an effective plan.
A proposed transaction processing application will have many data capture sources and outputs in both paper and electronic form. To ensure that transactions are not lost during processing, the IS auditor should recommend the inclusion of: A. validation controls. B. internal credibility checks. C. clerical control procedures. D. automated systems balancing.
Before reporting results of an audit to senior management, an IS auditor should: A. Confirm the findings with auditees. B. Prepare an executive summary and send it to auditee management. C. Define recommendations and present the findings to the audit committee. D. Obtain agreement from the auditee on findings and actions to be taken.
Which of the following would be the LEAST likely indication that complete or selected outsourcing of IS functions should be considered? A. The applications development backlog is greater than three years. B. It takes one year to develop and implement a high-priority system. C. More than 60 percent of programming costs are spent on system maintenance. D. Duplicate information systems functions exist at two sites.
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An independent software program that connects two otherwise separate applications sharing computing resources across heterogeneous technologies is known as: A. middleware. B. firmware. C. application software. D. embedded systems.