Q321. The Memory Address Register
a) is a hardware memory device which denotes the location of the current instruction being executed.
b) is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.
c) contains the address of the memory location that is to be read from or stored into.
d) contains a copy of the designated memory location specified by the MAR after a “read” or the
Answer : c
Q322. In virtual memory systems, Dynamic address translation
a) is the hardware necessary to implement paging
b) stores pages at a specific location on disk
c) is useless when swapping is used
d) is part of the operating system paging algorithm
Answer : a
Q323. A non-relocatable program is one which
a) cannot be made to execute in any area of storage other than the one designated for it at the time of its coding or translation.
b) consists of a program and relevant information for its relocation.
c) can itself performs the relocation of its address-sensitive portions.
d) all of the above
Answer : a
Q324. Which of the following are (is) Language Processor(s)
a) assembles
b) compilers
c) interpreters
d) All of the above
Answer : d
Q325. In which addressing mode the effective address of the operand is the contents of a register specified in the instruction and after accessing the operand, the contents of this register is incremented to point to the next item in the list?
a) index addressing
b) indirect addressing
c) auto increment
d) auto decrement
Answer : c
Q326. The working set theory of programming behaviour of processes running within an operating system involves
a) the collection of pages that a process accesses
b) disk scheduling mechanisms
c) coalescing holes in memory
d) assigning the CPU to processes
Answer : a
Q327. Operating system is
a) A collection of hardware components
b) A collection of input-output devices
c) A collection of software routines
d) All of the above
Answer : c
Q328. A file organization component of a VSAM file is:
a) relative record data set
b) keyed sequential data set
c) entry sequential data set
d) all of the above
Answer : d
Q329. What is the name given to the software which can be legally compiled and often used for free?
a) Shareware program
b) Public domain program
c) Firmware program
d) Mindware
Answer : b
Q330. PDF stands for
a) Portable Disck Format
b) Portable Dos Format
c) Portable Document file
d) Portable Document Format
Answer : d