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Answer: C

Attenuation is a signal degradation (decrease in amplitude)
that occurs as a signal propagates along a transmission
medium. This is seen particularly when the medium is copper
wire. Noise is also a signal degradation that refers to a
large amount of electrical fluctuation that can interfere
with the interpretation of the signal by the receiver.
Crosstalk is one example of noise where unwanted electrical
coupling between adjacent lines causes the signal in one
wire to be picked up by the signal in an adjacent wire.
Delay distortion can result in a misinterpretation of a
signal that results from transmitting a digital signal with
varying frequency components. The various components arrive
at the receiver with varying delays.

Change control procedures to prevent scope creep during an application development project should be defined during: A. design. B. feasibility. C. implementation. D. requirements definition.

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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. Function point (FP) B. Program evaluation review technique (PERT) C. Rapid application design (RAD) D. Critical path method (CPM)

2 Answers  

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Requiring passwords to be changed on a regular basis, assigning a new one-time password when a user forgets his/hers, and requiring users not to write down their passwords are all examples of: A. audit objectives. B. audit procedures. C. controls objectives. D. control procedures.

1 Answers  

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A strength of an implemented quality system based on ISO 9001 is that it: A. guarantees quality solutions to business problems. B. results in improved software life cycle activities. C. provides clear answers to questions concerning cost-effectiveness. D. does not depend on the maturity of the implemented quality system.

2 Answers  

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Which of the following describes a difference between unit testing and system testing? A. Unit testing is more comprehensive. B. Programmers are not involved in system testing. C. System testing relates to interfaces between programs. D. System testing proves user requirements are complete.

2 Answers   IBM,

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If inadequate, which of the following would be the MOST likely contributor to a denial-of-service attack? A. Router configuration and rules B. Design of the internal network C. Updates to the router system software D. Audit testing and review techniques

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Which of the following systems-based approaches would a financial processing company employ to monitor spending patterns to identify abnormal patterns and report them? A. A neural network B. Database management software C. Management information systems D. Computer assisted audit techniques

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WHICH OF THE FOLLOWING IS OFTEN AN ADVANTAGE OF USING PROTOTYPING GOR DYDTEM DVELOPMENT

0 Answers   TEC,

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Functional acknowledgements are used: A. as an audit trail for EDI transactions. B. to functionally describe the IS department. C. to document user roles and responsibilities. D. as a functional description of application software.

1 Answers   CISA,

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One of the purposes of library control software is to allow: A. programmers access to production source and object libraries. B. batch program updating. C. operators to update the control library with the production version before testing is completed. D. read-only access to source code.

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The MOST likely explanation for the use of applets in an Internet application is that: A. it is sent over the network from the server. B. the server does not run the program and the output is not sent over the network. C. they improve the performance of both the web server and network. D. it is a JAVA program downloaded through the web browser and executed by the web server of the client machine.

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Which of the following duties would be a concern if performed along with systems administration? A. Maintenance of access rules B. Review of system audit trail C. Data librarian D. Performance monitoring

1 Answers  

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