The knowledge base of an expert system that uses
questionnaires to lead the user through a series of choices
before a conclusion is reached is known as:
A. rules.
B. decision trees.
C. semantic nets.
D. data flow diagrams.
Answer / guest
Answer: B
Decision trees use questionnaires to lead a user through a
series of choices until a conclusion is reached. Rules refer
to the expression of declarative knowledge through the use
of if-then relationships. Semantic nets consist of a graph
in which nodes represent physical or conceptual objects and
the arcs describe the relationship between the nodes.
Semantic nets resemble a data flow diagram and make use of
an inheritance mechanism to prevent duplication of data.
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An IS auditor performing a telecommunication access control review should be concerned PRIMARILY with the: A. maintenance of access logs of usage of various system resources. B. authorization and authentication of the user prior to granting access to system resources. C. adequate protection of stored data on servers by encryption or other means. D. accountability system and the ability to identify any terminal accessing system resources.
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.
Which of the following testing methods is MOST effective during the initial phases of prototyping? A. System B. Parallel C. Volume D. Top-down
During the review of an organization's disaster recovery and business continuity plan, the IS auditor found that a paper test was performed to verify the existence of all necessary procedures and actions within the recovery plan. This is a: A. preparedness test. B. module test. C. full test. D. walk-through test.
Which of the following procedures would BEST determine whether adequate recovery/restart procedures exist? A. Reviewing program code B. Reviewing operations documentation C. Turning off the UPS, then the power D. Reviewing program documentation
Which of the following is LEAST likely to be contained in a digital certificate for the purposes of verification by a trusted third party (TTP)/certification authority (CA)? A. Name of the TTP/CA B. Public key of the sender C. Name of the public key holder D. Time period for which the key is valid
Various standards have emerged to assist IS organizations in achieving an operational environment that is predictable, measurable and repeatable. The standard that provides the definition of the characteristics and the associated quality evaluation process to be used when specifying the requirements for and evaluating the quality of software products throughout their life cycle is: A. ISO 9001. B. ISO 9002. C. ISO 9126. D. ISO 9003.
In a LAN environment, which of the following minimizes the risk of data corruption during transmission? A. Using end-to-end encryption for data communication B. Using separate conduits for electrical and data cables C. Using check sums for checking the corruption of data D. Connecting the terminals using a star topology
When reviewing a service level agreement for an outsourced computer center an IS auditor should FIRST determine that: A. the cost proposed for the services is reasonable. B. security mechanisms are specified in the agreement. C. the services in the agreement are based on an analysis of business needs. D. audit access to the computer center is allowed under the agreement.
An IS auditor auditing hardware monitoring procedures should review A. system availability reports. B. cost-benefit reports. C. response time reports. D. database utilization reports.
Which of the following is the MOST important function to be performed by IT management within an outsourced environment? A. Ensuring that invoices are paid to the provider B. Participating in systems design with the provider C. Renegotiating the provider's fees D. Monitoring the outsourcing provider's performance
Which of the following is the MOST effective type of antivirus software to detect an infected application? A. Scanners B. Active monitors C. Integrity checkers D. Vaccines