Basics

Question 1
A set of rules that governs data communication:
A
rule
B
medium
C
Link
D
Protocol
       Computer-Networks       Basics       Nielit Scientist-B IT 4-12-2016
Question 1 Explanation: 
A protocol is a set of rules that governs data communication. It represents an agreement between the communicating devices. Without a protocol, two devices may be connected but not communicating, just as a person speaking Telugu cannot be understood by a person who speaks only Hindi.
Question 2
The ___ is the physical path over which a message traversals
A
Path
B
Protocol
C
Route
D
Medium
       Computer-Networks       Basics       Nielit Scientist-B IT 4-12-2016
Question 2 Explanation: 
● Protocol is a standard used to define a method of exchanging data over a computer network, such as local area network, Internet, Intranet, etc.
● Routing is the process of moving a packet of data from one network to another network based on the destination IP address.
● The physical channel used for transmission in the network is called medium.
● Message travel from sender to receiver via a medium using a protocol
Question 3
Bug means
A
A logical error in a program
B
A difficult syntax error in a program
C
Documenting programs using an efficient documentation tool
D
All of the above
       Software-Engineering       Basics       Nielit Scientist-B CS 22-07-2017
Question 3 Explanation: 
A bug is an error in a software program. It may cause a program to unexpectedly quit or behave in an unintended manner. For example, a small bug may cause a button within a program's interface not to respond when you click it. A more serious bug may cause the program to hang or crash due to an infinite calculation or memory leak.
Question 4
Dividing a project into segments and smaller units in order to simplify analysis,design and programming efforts is called
A
Modular approach
B
Top down approach
C
Bottom up approach
D
Left right approach
       Software-Engineering       Basics       NieLit STA 2016 March 2016
Question 4 Explanation: 
● Dividing a project into segments and smaller units in order to simplify analysis,design and programming efforts is called Modular approach
● Modular design or “modularity in design”, is a design approach that subdivides a system into smaller parts called modules or skids that can be independently created and then used in different systems.
Question 5
The structure or format of data is called:
A
Syntax
B
Struct
C
Semantic
D
none of the above
       Compiler-Design       Basics       Nielit Scientist-B CS 4-12-2016
Question 5 Explanation: 
Semantics defines how a particular pattern to be interpreted, and what action is to be taken based on that interpretation.
Question 6
The memory which does not lose its content on failure of power supply is known as___memory.
A
Main memory
B
Volatile
C
Non volatile
D
ROM
       Operating-Systems       Basics       KVS DEC-2017
Question 6 Explanation: 
Non-volatile memory (NVM) or non-volatile storage is a type of computer memory that can retrieve stored information even after having been power cycled. In contrast, volatile memory needs constant power in order to retain data. Examples of non-volatile memory include read-only memory, flash memory, ferroelectric RAM, most types of magnetic computer storage devices (e.g. hard disk drives, solid state drives, floppy disks, and magnetic tape), optical discs, and early computer storage methods such as paper tape and punched cards.
There are 6 questions to complete.
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