IndiaBIX

Computer Science - Operating Systems Concepts

Exercise : Operating Systems Concepts - Section 1
6.
Addressing structure
defines the fundamental method of determining effective operand addresses
are variations in the use of fundamental addressing structures, or some associated actions which are related to addressing.
performs indicated operations on two fast registers of the machine and leave the result in one of the registers.
all of the above
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
The Memory Buffer Register (MBR)
is a hardware memory device which denotes the location of the current instruction being executed.
is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.
contains the address of the memory location that is to be read from or stored into.
contains a copy of the designated memory location specified by the MAR after a "read" or the new contents of the memory prior to a "write".
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
The strategy of allowing processes that are logically runnable to be temporarily suspended is called
preemptive scheduling
non preemptive scheduling
shortest job first
first come first served
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
The Storage-to-Storage instructions
have both their operands in the main store.
which perform an operation on a register operand and an operand which is located in the main store, generally leaving the result in the register, expect in the case of store operation when it is also written into the specified storage location.
which perform indicated operations on two fast registers of the machine and have the result in one of the registers
all of the above
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
The LRU algorithm
pages out pages that have been used recently
pages out pages that have not been used recently
pages out pages that have been least used recently
pages out the first page in a given area
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers