IT Fundamental - IX

1. Array is:

(a) linear data structure

(b) non-linear structure

(c) none of the above

(d) All of the above

2. A data structure in which elements are added and removed from only one end, is known as:

(a) Array

(b) Stack

(c) Queue

(d) None of the above

3. A diamond-shaped box in an Entity-Relationship diagram refers to:

(a) Entity

(b) Relationship

(c) Attribute

(d) Domain

4. The principle means of identifying entities within an entity set is:

(a) Primary Key

(b) Record

(c) Attribute

(d) Tuple

5. Modem refers to:

(a) Modulator

(b) Modulation

(c) Demodulator

(d) Modulator and Demodulator

6. C language is available for which of the following Operating Systems?

(a) DOS

(b) Windows

(c) Unix

(d) All of the above

7. Which of the following have the fastest access time?

(a) Magnetic Tapes

(b) Magnetic Disks

(c) Semiconductor Memories

(d) Compact Disks

8. DMA stands for:

(a) Direct Memory Allocation

(b) Distinct Memory Allocation

(c) Direct Memory Access

(d) Distinct Memory Access

9. Array subscripts in C always start at:

(a):1

(b) 0

(c) 1

(d) Value provided by user

10. Which type of commands in DOS needs additional files for their execution?

(a) Batch Commands

(b) Internal Commands

(c) External Commands

(d) Main Commands