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Information stored in computer is in |
| A) Hexadecimal form
B) Integer form
C) Binary form
D) Character form
Correct Answer : Binary form Explanation : In the computer it's all 0's and 1's , which is binary. |
Which of the following memory is refreshed a number of times per second |
| A) Hard disk
B) RAM
C) ROM
D) Dynamic RAM
Correct Answer : Dynamic RAM |
Time taken to position the Read/Write head at the desired track of disk is known as |
| A) Access time
B) Seek time
C) Latency time
D) Data transfer time
Correct Answer : Seek time Explanation : Seek time – the time taken to position the head at the desired track where the data is to be read or write. Disk Access Time = Seek Time + Rotational Latency + Transfer Time |
Which of the following symbols are used in Assembly Language |
| A) Tags
B) Numbers
C) Characters
D) Mnemonics
Correct Answer : Mnemonics Explanation : Mnemonics are predefined assembly-language names for machine instructions, pseudo-ops, directives, and data allocation statements. Mnemonics are not case-sensitive. |
DMA controller is used in a computer to transfer the data |
| A) From main memory to CPU
B) From hard disk to main memory
C) From ROM to RAM
D) All options are correct
Correct Answer : From hard disk to main memory Explanation : DMA is a method that allows an input/output device to send or receive data directly to or from the main memory, bypassing the CPU to speed up memory operations. The process is managed by a chip known as a DMA controller. |
What are universal gates |
| A) NOT, OR
B) NAND, NOR
C) XOR, NOT
D) XNOR, AND
Correct Answer : NAND, NOR Explanation : A gate which can be use to create any Logic gate(NOT,AND,OR,XOR & XNOR) is called Universal Gate .The NAND and NOR gates are universal gates. |
1 TB =______ Byte |
| A) 220
B) 230
C) 240
D) 250
Correct Answer : 240 Explanation : 1 byte = 8 bits |
Which memory is used for storing programs that are not to be changed |
| A) ROM
B) RAM
C) Monitor
D) Cache Memory
Correct Answer : ROM Explanation : Read Only Memory: ROM is non-volatile memory, which do not loose their content on failure of power supply. A ROM is a form of semiconductor memory technology used where the data is written once and then not changed. |
Conceptual design of the database is done with the help of |
| A) Data marts
B) Data models
C) DFD
D) Flowchart
Correct Answer : Data models Explanation : Data modeling is a process of designing and developing a data system to support the various business processes of the oraganisation . It represents the nature of data, business rules that are applicable to data, and how it will be organized in the database. |
Primary means of searching the records from database is called as |
| A) Candidate Key
B) Primary Key
C) Foreign Key
D) Alternate Key
Correct Answer : Primary Key |
What is the Output of the following C Program? |
| A) 78
B) 87
C) 88
D) Output many vary from computer to computer
Correct Answer : 78 |
What is the output for the following ‘C’ code? |
| A) Good
B) very good
C) 0.9
D) Printf
Correct Answer : very good |
Which of the following C statement is used to print the values of a, b and c? |
| A) printf (“%d %f %f ”, a,b,c) ;
B) printf (“%d %f %lf ”, a,b,c) ;
C) printf (“%d %f %d”, a,b,c) ;
D) printf (“%lf %f %f ”, a,b,c) ;
Correct Answer : printf (“%d %f %lf ”, a,b,c) ; |
"Continue" keywords in 'C' is used to transfer the control to the beginning of |
| A) loop
B) program
C) if statement
D) main() function
Correct Answer : loop |
The execution of a ‘C’ program starts from |
| A) scanf() function
B) main() function
C) library function
D) do-while loop
Correct Answer : main() function |
A function of a ‘C’ program cannot return more than |
| A) One value
B) Two values
C) Three values
D) Four values
Correct Answer : One value |
Full form of BIOS is |
| A) Bigger Input or Smaller
B) Basic Input and Output Sum
C) Better Input and Output System
D) Basic Input Output System
Correct Answer : Basic Input Output System Explanation : BIOS, which stands for Basic Input Output System, is software stored on a small memory chip on the motherboard. which can change how the device works or to assist in troubleshooting a problem. |
Union in ‘C’ is |
| A) Used to store different members at same memory location
B) A primitive data type
C) A text file
D) A variable of long integer type
Correct Answer : Used to store different members at same memory location |
Which of the following linear data structure allow both insertion and deletion at only one end |
| A) Queue
B) Stack
C) Circular queue
D) Tree
Correct Answer : Stack |
From which end of the Queue elements are deleted? |
| A) Rear
B) Front
C) Middle
D) Any Position
Correct Answer : Front |
The access of queue element is |
| A) Sequential
B) Random
C) Direct
D) Indexed
Correct Answer : Sequential |
Which searching algorithm need sorted list? |
| A) Sequential search
B) Hashing
C) Binary Search
D) None of these
Correct Answer : Binary Search |
Which term does not relate to stack? |
| A) FIFO
B) LIFO
C) POP
D) PUSH
Correct Answer : FIFO |
Postfix notation for A + (B*C) - D is as follows |
| A) ABC*D-+
B) A+BC*-D
C) AB+C*-D
D) None of these
Correct Answer : ABC*D-+ |
Postfix notational expressions are stored in the following data structure |
| A) Queue
B) linked list
C) Stack
D) Doubly linked list
Correct Answer : Stack |