Questions
Which one of the following digital functions is used to convert octal code to binary code?
- Octal to binary converter
- Encoder
- Processor
- Multiplexer
- Binary adder
Which of the following is a CPU register that holds the address of next execution instruction?
- Memory address register
- Memory buffer register
- Instruction register
- Internal register
- Program counter
Which of the following is used to end a statement in C language?
- #
- ,
- ;
- :
- .
Which one of the following is not an SQL?
- DML
- TCL
- DCL
- DDL
- NML
Which of the following is not the right file access mode in C language?
- r
- w
- r+
- a
- m
Which of the following terms is used to refer the time required to move the disk head from previous track to new track?
- Free time
- Window period
- Process time
- Seek time
- Latency time
Which variable in C language is generally used for complex calculation, where higher accuracy is essential?
- Char
- Number
- Float
- Double
- Integer
Which of the following is the best option in context to parity bit?
- Parity bit is used to indicate lowercase letters.
- Parity bit is used to indicate uppercase letters.
- Parity bit is used to detect errors.
- Parity bit is the first bit in a byte.
- Parity bit is the middle bit in a byte.
Which of the following error detection techniques is used to test the integrity of digital data in memory or on disk?
- Checksum
- Redundancy checking
- Scan disk
- Chkdsk
- None of these
In C language, structure uses variable(s) of
- similar datatype only
- dissimilar datatype only
- integer datatype only
- string datatype only
- all datatypes
Which of the following is the correct statement about RAID system?
- RAID system increases the processor speed.
- RAID system increases the disk storage capacity.
- RAID system increases the disk storage capacity and availability.
- RAID system increases operating system efficiency.
- RAID system decreases operating system efficiency.
Which of the following is the correct ascending order in terms of size?
- Track, Cylinder, Sector
- Sector, Track, Cylinder
- Cylinder, Track, Sector
- Cylinder, Sector, Track
- Sector, Cylinder, Track
Which of the folllowing commands is used in C language to skip statements below it and reset the control to start from beginning in a loop?
- return
- goto
- continue
- break
- jump
Which of the following is true about dangling pointer in C language?
- It points to allocated memory.
- It points to freed or deallocated memory.
- It points to pointer.
- It points to variables.
- It points to register variables.
What is the term used for mobile bluetooth network?
- LAN
- WAN
- MAN
- PAN
- CAN