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An organization is considering installing a LAN in a site
under construction. If system availability is the main
concern, which of the following topologies is MOST appropriate?
A. Ring
B. Line
C. Star
D. Bus
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Answer: A
A ring or loop topology would enable messages to be rerouted
should the network cabling be severed at any point or a
hardware element fail. With the correct settings in network
hardware, the loss of any link would be invisible to the
users. In line and bus networks, which are essentially the
same thing, terminals are connected to a single cable. If
this cable is severed, all terminals beyond the point of
severance will be unavailable. A star network clusters
terminals around hubs, connected to the server by separate
lines in the form of a star. If any line is severed, all
terminals in the cluster at the end of that line would be
disconnected.
| Is This Answer Correct ? | 2 Yes | 2 No |
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.
When planning an audit of a network set up, the IS auditor should give highest priority to obtaining which of the following network documentation? A. Wiring and schematic diagram B. Users list and responsibilities C. Applications list and their details D. Backup and recovery procedures
Which of the following information valuation methods is LEAST likely to be used during a security review? A. Processing cost B. Replacement cost C. Unavailability cost D. Disclosure cost
When a complete segregation of duties cannot be achieved in an online system environment, which of the following functions should be separated from the others? A. Origination B. Authorization C. Recording D. Correction
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.
Which of the following is MOST likely to occur when a system development project is in the middle of the programming/coding phase? A. Unit tests B. Stress tests C. Regression tests D. Acceptance tests
A PING command is used to measure: A. attenuation. B. throughput. C. delay distortion. D. latency.
An IS auditor performing an application maintenance audit would review the log of program changes for the: A. authorization for program changes. B. creation date of a current object module. C. number of program changes actually made. D. creation date of a current source program.
The purpose of debugging programs is to: A. generate random data that can be used to test programs before implementing them. B. protect, during the programming phase, valid changes from being overwritten by other changes. C. define the program development and maintenance costs to be include in the feasibility study. D. ensure that program abnormal terminations and program coding flaws are detected and corrected.
Which of the following is a check (control) for completeness? A. Check digits B. Parity bits C. One-for-one checking D. Prerecorded input
IS auditors reviewing access control should review data classification to ensure that encryption parameters are classified as: A. sensitive. B. confidential. C. critical. D. private.
Which of the following provides a mechanism for coding and compiling programs interactively? A. Firmware B. Utility programs C. Online programming facilities D. Network management software
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