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An IS auditor needs to link his/her microcomputer to a
mainframe system that uses binary synchronous data
communications with block data transmission. However, the IS
auditor's microcomputer, as presently configured, is capable
of only asynchronous ASCII character data communications.
Which of the following must be added to the IS auditor's
computer to enable it to communicate with the mainframe system?
A. Buffer capacity and parallel port
B. Network controller and buffer capacity
C. Parallel port and protocol conversion
D. Protocol conversion and buffer capability
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Answer: D
For the IS auditor's microcomputer to communicate with the
mainframe, the IS Auditor must use a protocol converter to
convert the asynchronous and synchronous transmission.
Additionally, the message must be spooled to the buffer to
compensate for different rates of data flow.
| Is This Answer Correct ? | 4 Yes | 1 No |
With reference to the risk management process, which of the following statements is correct? A. Vulnerabilities can be exploited by a threat. B. Vulnerabilities are events with the potential to cause harm to IS resources. C. Vulnerability exists because of threats associated with use of information resources. D. Lack of user knowledge is an example of a threat.
E-cash is a form of electronic money that: A. can be used over any computer network. B. utilizes reusable e-cash coins to make payments. C. does not require the use of an Internet digital bank. D. contains unique serial numbering to track the identity of the buyer.
Which of the following provides nonrepudiation services for e-commerce transactions? A. Public key infrastructure (PKI) B. Data encryption standard (DES) C. Message authentication code (MAC) D. Personal identification number (PIN)
Security administration procedures require read-only access to: A. access control tables. B. security log files. C. logging options. D. user profiles.
Involvement of senior management is MOST important in the development of: A. strategic plans. B. IS policies. C. IS procedures. D. standards and guidelines.
When auditing security for a data center, an IS auditor should look for the presence of a voltage regulator to ensure that the: A. hardware is protected against power surges. B. integrity is maintained if the main power is interrupted. C. immediate power will be available if the main power is lost. D. hardware is protected against long-term power fluctuations.
Which of the following exposures could be caused by a line-grabbing technique? A. Unauthorized data access B. Excessive CPU cycle usage C. Lockout of terminal polling D. Multiplexor control dysfunction
Structured programming is BEST described as a technique that: A. provides knowledge of program functions to other programmers via peer reviews. B. reduces the maintenance time of programs by the use of small-scale program modules. C. makes the readable coding reflect as closely as possible the dynamic execution of the program. D. controls the coding and testing of the high-level functions of the program in the development process.
To prevent an organization's computer systems from becoming part of a distributed denial-of-service attack, IP packets containing addresses that are listed as unroutable can be isolated by: A. establishing outbound traffic filtering. B. enabling broadcast blocking. C. limiting allowable services. D. network performance monitoring.
Which of the following types of risks assumes an absence of compensating controls in the area being reviewed? A. Control risk B. Detection risk C. Inherent risk D. Sampling risk
An IS auditor should use statistical sampling and not judgmental (nonstatistical) sampling, when: A. the probability of error must be objectively quantified. B. the auditor wants to avoid sampling risk. C. generalized audit software is unavailable. D. the tolerable error rate cannot be determined.
Capacity monitoring software is used to ensure: A. maximum use of available capacity. B. that future acquisitions meet user needs. C. concurrent use by a large number of users. D. continuity of efficient operations.
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