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Which of the following is a telecommunication device that
translates data from digital form to analog form and back to
digital?
A. Multiplexer
B. Modem
C. Protocol converter
D. Concentrator
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Answer: B
A modem is a device that translates data from digital to
analog and back to digital.
| Is This Answer Correct ? | 4 Yes | 1 No |
A B-to-C e-commerce web site as part of its information security program wants to monitor, detect and prevent hacking activities and alert the system administrator when suspicious activities occur. Which of the following infrastructure components could be used for this purpose? A. Intrusion detection systems B. Firewalls C. Routers D. Asymmetric encryption
Which of the following is an IS control objective? A. Output reports are locked in a safe place. B. Duplicate transactions do not occur. C. System backup/recovery procedures are updated periodically. D. System design and development meet users' requirements.
Which of the following functions should be performed by the application owners to ensure an adequate segregation of duties between IS and end users? A. System analysis B. Authorization of access to data C. Application programming D. Data administration
An IS auditor reviewing an organization's IS disaster recovery plan should verify that it is: A. tested every 6 months. B. regularly reviewed and updated. C. approved by the chief executive officer (CEO). D. communicated to every departmental head in the organization.
When an organization's network is connected to an external network in an Internet client-server model not under that organization's control, security becomes a concern. In providing adequate security in this environment, which of the following assurance levels is LEAST important? A. Server and client authentication B. Data integrity C. Data recovery D. Data confidentiality
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.
An IS auditor performing an independent classification of systems should consider a situation where functions could be performed manually at a tolerable cost for an extended period of time as: A. critical. B. vital. C. sensitive. D. noncritical.
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 IS auditor's report should recommend that: A. the deputy CEO be censured for his failure to approve the plan. B. a board of senior managers be set up to review the existing plan. C. the existing plan be approved and circulated to all key management and staff. D. a manager coordinate the creation of a new or revised plan within a defined time limit.
Classification of information systems is essential in business continuity planning. Which of the following system types can not be replaced by manual methods? A. Critical system B. Vital system C. Sensitive system D. Non-critical system
Which of the following is an objective of a control self-assessment (CSA) program? A. Audit responsibility enhancement B. Problem identification C. Solution brainstorming D. Substitution for an audit
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 is a strength of the program evaluation review technique (PERT) over other techniques? PERT: A. considers different scenarios for planning and control projects. B. allows the user to input program and system parameters. C. tests system maintenance processes accurately. D. estimates costs of system projects.
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