Which of the following environmental controls is appropriate
to protect computer equipment against short-term reductions
in electrical power?
A. Power line conditioners
B. A surge protective device
C. An alternative power supply
D. An interruptible power supply
Answer / guest
Answer: A
Power line conditioners are used to compensate for peaks and
valleys in the power supply and reduce peaks in the power
flow to what is needed by the machine. Any valleys are
removed by power stored in the equipment. Surge protection
devices protect against high voltage bursts. Alternative
power supplies are intended for computer equipment running
for longer periods and normally are coupled with other
devices such as an uninterruptible power supply (UPS) to
compensate for the power loss until the alternate power
supply becomes available. An interruptible power supply
would cause the equipment to come down whenever there was a
power failure.
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Which of the following is the MOST secure and economical method for connecting a private network over the Internet in a small- to medium-sized organization? A. Virtual private network B. Dedicated line C. Leased line D. Integrated services digital network
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An IS auditor, in evaluating proposed biometric control devices reviews the false rejection rates (FRRs), false acceptance rates (FARs) and equal error rates (ERRs) of three different devices. The IS auditor should recommend acquiring the device having the: A. least ERR. B. most ERR. C. least FRR but most FAR. D. least FAR but most FRR.
Which of the following audit tools is MOST useful to an IS auditor when an audit trail is required? A. Integrated test facility (ITF) B. Continuous and intermittent simulation (CIS) C. Audit hooks D. Snapshots
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Which of the following audit techniques would an IS auditor place the MOST reliance on when determining whether an employee practices good preventive and detective security measures? A. Observation B. Detail testing C. Compliance testing D. Risk assessment
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When performing an audit of access rights, an IS auditor should be suspicious of which of the following if allocated to a computer operator? A. READ access to data B. DELETE access to transaction data files C. Logged READ/EXECUTE access to programs D. UPDATE access to job control language/script files
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