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Cards In This Set
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IS management has decided to rewrite a legacy customer relations system using fourth generation languages (4GLs). Which of the following risks is MOST often associated with systemdevelopment using 4GLs?
A. Inadequate screen/report design facilitiesB. Complex programming language subsetsC. Lack of portability across operating systemsD. Inability to perform data intensive operations |
Answer: D
Explanation:4GLs are usually not suitable for data intensive operations. Instead, they are used mainly forgraphic user interface (GUI) design or as simple query/report generators. Incorrect answers:A, B. Screen/report design facilities are one of the main advantages of 4GLs, and 4GLs havesimple programming language subsets.C. Portability is also one of the main advantages of 4GLs. |
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Which of the following would be the BEST method for ensuring that critical fields in a masterrecord have been updated properly?
A. Field checksB. Control totalsC. Reasonableness checksD. A before-and-after maintenance report |
Answer: D
Explanation:A before-and-after maintenance report is the best answer because a visual review would providethe most positive verification that updating was proper. |
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Which of the following is a dynamic analysis tool for the purpose of testing software modules?
A. Blackbox testB. Desk checkingC. Structured walk-throughD. Design and code |
Answer: A
Explanation:A blackbox test is a dynamic analysis tool for testing software modules. During the testing ofsoftware modules a blackbox test works first in a cohesive manner as one single unit/entity,consisting of numerous modules and second, with the user data that flows across softwaremodules. In some cases, this even drives the software behavior.Incorrect answers:In choices B, C and D, the software (design or code) remains static and somebody simply closely examines it by applying his/her mind, without actually activating the software. Hence, these cannot be referred to as dynamic analysis tools. |
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Which of the following is MOST likely to result from a business process reengineering (BPR)project?
A. An increased number of people using technologyB. Significant cost savings, through a reduction in the complexity of information technologyC. A weaker organizational structures and less accountabilityD. Increased information protection (IP) risk will increase |
Answer: A
Explanation:A BPR project more often leads to an increased number of people using technology, and thiswould be a cause for concern. Incorrect answers:B. As BPR is often technology oriented, and this technology is usually more complex and volatilethan in the past, cost savings do not often materialize in this area .D. There is no reason for IP to conflict with a BPR project, unless the project is not run properly. |
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Which of the following devices extends the network and has the capacity to store frames and act as a storage and forward device?
A. RouterB. BridgeC. RepeaterD. Gateway |
Answer: B
Explanation:A bridge connects two separate networks to form a logical network (e.g., joining an ethernet andtoken network) and has the storage capacity to store frames and act as a storage and forwarddevice. Bridges operate at the OSI data link layer by examining the media access control headerof a data packet.Incorrect answers:A. Routers are switching devices that operate at the OSI network layer by examining networkaddresses (i.e., routing information encoded in an IP packet). The router, by examining the IPaddress, can make intelligent decisions in directing the packet to its destination.C. Repeaters amplify transmission signals to reach remote devices by taking a signal from a LAN, reconditioning and retiming it, and sending it to another. This functionality is hardware encodedand occurs at the OSI physical layer.D. Gateways provide access paths to foreign networks. |
