1. If a process is executing in its critical section, then no other processes can be executing in their critical section. This condition is called
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mutual exclusion
critical exclusion
synchronous exclusion
2. What is the name of the operating system that reads and reacts in terms of actual time?
-
Real time system
Time sharing system
Quick response system
3. Run time mapping from virtual to physical address is done by
-
memory management unit
CPU
PCI
4. Memory management technique in which system stores and retrieves data from secondary storage for use in main memory is called
-
fragmentation
paging
mapping
5. The ______ register is written by the host to send output.
-
status
control
data in
6. The allocation of processors by process management is also known as the CPU ___
-
Managing
Processing
Planning
7. When a computer is ___ of any software it is just like dead body.
-
Amicable
Devoid
A machine
8. Bringing a page into memory only when it is needed,this mechanism is called
-
Deadlock
Page Fault
Dormant Paging
9. A program used to translate high-level lang. to machine level language is called
-
Loader
Compiler
Linker
10. Code files corresponding to the incomplete pension of program area
-
Object files
Exactable
Complete files
11.Co-Operating has several advantages.
-
Modularity
Information Sharing
Computation Speedup, Convenience
12. It is a register and holds the address of the next instruction to be executed.
-
Process counter
Program counter
CPU register
13.The main advantage of the interrupt concept is the elimination of
-
Spooling
Polling
Job scheduling
14. MAR stands for
-
memory address register
main address register
main accessible register
15. A circuitry that processes that responds to and processes the basic instructions that are required to drive a computer system is
-
memory
alu
cu
16. In which ways a macro processor for assembly language can be implemented
-
Independent two-pass processor
Independent one-pass processor
Processor incorporated into pass 1 of a standard two-pass assembler
17. Which of the following commands should you use to delete files on a linux system?
-
Mv
Expunge
Delete
18. Any electronic holding place where data can be stored and retrieved later whenever required is
-
memory
drive
disk
19. torage is a system where a robotic arm will connect or disconnect off- line mass storage media according to the computer operating system demands.
-
secondary
virtual
tertiary
20. What is the location of the internal registers of CPU?
-
internal
on-chip
external
21.If M denotes the number of memory locations and N denotes the word size, then an expression that denotes the storage capacity is
-
m*n
m+n
2m+n
22. An un-interruptible unit is known as
-
single
atomic
static
23. Which one of the following is not a computer language?
-
BASIC
C++
JAVA
24. If the process can be moved during its execution from one memory segment to another, then binding must be
-
delayed until run time
preponed to compile time
preponed to load time
25. The run time mapping from virtual to physical addresses is done by a hardware device called the
-
virtual to physical mapper
memory management unit
memory mapping unit
26. ___ allows plug-in hardware to include boot-time diagnostics, configuration code, and device drivers that will run on any kind of CPU.
-
p-code
Java Virtual Machine (JVM)
Common Language Runtime (CLR)
27. In the mid-1980s, researches at Carnegie Mellon University developed an operating system called ___ that modularized the kernel using the microkernel approach.
-
DOS
Mac
Unix
28. Generally when the number of frames available increases, the number of page faults should decrease. Instead, if the page faults also increase, this unexpected result is called ___.
-
Charlie’s anomaly
Belady’s anomaly
John’s anomaly
29. PFF stands for ___.
-
Page Fault Finder
Page Finding Frequency
Page Fault Frequency
30. What does MBR stand for ?
-
main buffer register
memory buffer routine
main buffer routine
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