Computers are extremely fast and have fantastic memories. However, the only thing they can remember is

Options: Instruction,    Series of 1s and 0s,    Boolean algebra,    Logic theorems



Asked in: KCC-2018   |   JOA 556-2018  |  HRTC JTO-2017

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What type of commands are individual programs kept, as separate files on the hard disk (DOS diskette)?
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Ans:A ,A

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When the values in one or more attributes being used as a foreign key must exist in another set of one or more attributes in another table, we have created a(n):
Options: transitive dependency.,    insertion anomaly.,    referential integrity constraint.,    normal form.

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Options: Computer operator,    Programmer,    System Analyst,    Key-punch operator

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Options: a common database design task.,    a rare database design task, but does occur.,    a database design task that never occurs.,    is impossible to do, so a new database must be constructed and the data moved into it.

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What layer protocol is responsible for user and the application programme support such as passwords, resource sharing, file transfer and network management?
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. We need system files to run
Options: a. MS Word b. MS Excel c. MS Dos d. MS Access

Ans:0 – c ,0 – c

What does protocol defines?
Options: Protocol defines what data is communicated. B. Protocol defines how data is communicated. C. Protocol defines when data is communicated. D. All of above

Ans:– D ,

A scheme describes
Options: data elements,    records and files,    record relationships,    All of the above

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For every relationship, how many possible types of actions are there when enforcing minimum cardinalities?
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Ans:3 – B ,3 – B

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Data scrubbing is which of the following?
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A view is which of the following?
Options: A virtual table that can be accessed via SQL commands,    A virtual table that cannot be accessed via SQL commands,    A base table that can be accessed via SQL commands,    A base table that cannot be accessed via SQL commands

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. Which of the following line spacing is invalid?
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Upper Memory blocks are located where?
Options: Conventional Memory,    Extended Memory,    Expanded memory,    Reserved Memory

Ans:D ,D

The average time necessary for the correct sector of a disk to arrive at the read write head is _____
Options: Down time,    Seek time,    Rotational delay,    Access time

Ans:C ,C

Suppose a voltage source has an ideal voltage of 15V and a source resistance of 0.2W. For what values of load resistance will the voltage source appear stiff?
Options: 20 Ohm,    30 Ohm,    10 Ohm,    100 Ohm

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A characteristic of card systems is:
Options: slowness in processing data,    using cards as records of transactions,    needing a larger DP staff,    all the above

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Options: a. Swapping b. Deadlock c. Demand Paging d. Page Fault

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Options: prompt,    passwords,    MIS,    Tactical

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Options: Every primary-key value must match a primary-key value in an associated table B. Every primary-key value must match a foreign-key value in an associated table C. Every foreign-key value must match a primary-key value in an associated table D. Every foreign-key value must match a foreign-key value in an associated table

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Ans:C ,C