Examintion

There is a database in which data additions, changes, and deletions occur at a certain low frequency. The interval between backups has been increased to twice the current level for backing the database onto magnetic tape.

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Which of the following is a correct statement in regard to prototyping? a) It is more suitable for batch systems than GUI-based interactive systems. b) Effectiveness can be increased by repeatedly remaking the prototype.

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Which of the following is a correct statement concerning “frames” as a method for expression of knowledge? a) Its format consists of expression of concepts as nodes, and relations or characteristics as directional arcs.

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Which of the following is the correct expression of the recall ratio and precision ratio used as measures in evaluating information retrieval systems, such as document retrieval systems and data retrieval systems? Here, A, B and C indicate the following.

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In this formula, a is a constant which expresses the overhead. For example, if a = 0.1 and n = 4, then P 3, so the performance of a multiprocessor consisting of 4 CPUs is approximately 3.

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Which of the following statements correctly describes a technology used to increase the reliability of a computer system? a) “Failsafe” is a technology that reduces failure by increasing the reliability of individual components.

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Q8.A system sends data from a server to a magnetic disk device over a LAN at a data transfer rate of 10 Mbps. The table below gives the measured transfer speed

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Which of the following systems offers the best results in introducing a three-tier client-server architecture? a) A system with a small number of application services and classes b) A system where correction and addition of applications are frequent

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Which of the following is a correct statement in regard to a preemptive system in OS process control? a) Each process can manage system resources autonomously, so the preemptive system is well-suited to multi-programming.

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In the question selection column, circle the number of the question you select to answer. If the question is not circled correctly, your test cannot be scored.. (5) Write your

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Q1Which system attempts to speed up data transfer to an auxiliary storage device equipped with the channel control system of a general-purpose computer, by continually sending data without waiting for a confirmation signal?

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1. Examination Time-14:30-16:30 (120 minutes). 2. Questions must be answered in accordance with the following: Question Nos. Question Selection Q1-Q2 Select one of the two.

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1. Examination Time-12:30-14:00 (90 minutes). 2. Questions must be answered in accordance with the following: Question Nos. Question Selection Q1-Q4 Select 3 from Q1 through Q4

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3. Mark your examinee information and test answers in accordance with the instructions below. (1) Use an HB black pencil. If you need to change an answer, fully erase the undesired mark with a rubber eraser until no mark remains

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