CBSE Class 7 Computer Science Software MCQs Set A

Question. Overlay is:
a) A part of an operating system
b) A single contiguous memory that is used in olden days for running large programs by swapping
c) Overloading the system with many user files
d) None of The options

Answer: B

Question. Necessary conditions for deadlock are:
a) Non preemptive and circular wait
b) Mutual exclusion and partial allocation
c) Both of The Above
d) None of The options

Answer: C

Question. A program:
a) is a device that performs a sequence of operations specified by instructions in memory
b) is a sequence of instructions
c) is the device where information is stored
d) None of The options

Answer: B

Question. Concurrent Process are:
a) process that do not overlap in time
b) process that overlap in time
c) process that are executed by a processor at the same time
d) None of The options

Answer: B

Question. Kernel is:
a) Considered as the critical part of the operating system
b) The software which monitors the operating system
c) the set of primitive functions upon which the rest of operating systems functions are built up
d) None of The options

Answer: C

Question. Virtual Memory is:
a) An extremely large main memory
b) An extremely large secondary memory.
c) An illusion of an extremely large memory.
d) None of The options

Answer: C

Question. A processor:
a) is a device that performs a sequence of operations specified by instructions in memory
b) is the device where information is stored
c) is a sequence instructions only
d) None of The options

Answer: A

Question. Supervisor call:
a) it is call made by the supervisor of the system
b) are privileged calls that are used to perform resource management functions, which are controlled by the operating system
c) is a call made by someone working in root directory
d) None of The options

Answer: B

Question. Memory:
a) is an device that performs a sequence of operations specified by instructions in memory
b) is a sequence of instructions
c) is the device where information is stored
d) None of The options

Answer: C

Question. Fragmentation is:
a) Dividing the secondary memory into equal sized fragments
b) Fragments of memory words used in a page
c) Fragments of memory words unused in a page
d) None of The options

Answer: C

Question. Critical Region is:
a) a set of instructions that access common shared resources which exclude one another in time
b) the portion of the main memory which can be accessed only by one process at a time.
c) Both of The Above
d) None of The options

Answer: A

Question. Mutual exclusion problem occurs between:
a) processes that share resources
b) processes that do not use the same resources
c) two disjoint processes that do not interact
d) None of The options

Answer: A

Question. Sector interleaving in disks is done by:
a) the disk manufacturer
b) the disk controller cord
c) the operating system
d) None of The options

Answer: C