Os

Question 1

CPU

Answer 1

Central processing unit

Question 2

Instruction for accessing the memory

Answer 2

MOV

Question 3

Privileged instructions for kernel

Answer 3

IN/OUT

Question 4

Specific sequence of instructions

Answer 4

Thread

Question 5

Process has?

Answer 5

One or more threads

Question 6

Race condition

Answer 6

Two threads or more access a resource without a proper order which leads to unpredictable behavior

Question 7

Deadlock

Answer 7

When two threads or more are waiting for each other to release resources

Question 8

Critical section

Answer 8

A code segment in a thread that updates or accesses shared data

Question 9

Mutual exclusion

Answer 9

Methods to ensure only one thread does a particular activity

Question 10

P

Answer 10

Decrease

Question 11

V

Answer 11

Increase

Question 12

Can a semaphore have a value of zero

Answer 12

Yes

Question 13

Process

Answer 13

A program in execution

Question 14

Memory layout of a process

Answer 14

Text section (executable code)
Data section تتضمن البيانات
Heap ذاكرة متواجده وقت تشغلي البرنامج
Stack ذاكرة حفظ مؤقته

Question 15

What makes a process

Answer 15

Threads + address space

Question 16

Maximum quantum?

Answer 16

10ms

Question 17

Multitasking happens with?

Answer 17

Time-sharing

Question 18

PCB

Answer 18

Process control block

Question 19

RPC

Answer 19

Remote procedure call

Question 20

MPI

Answer 20

Message passing interface

Question 21

Benefits of rpc

Answer 21

Remote procedures accept arguments and return results
Easy to design
More focused
Simple use for clients

Question 22

RPC issues

Answer 22

Transparency
Need of external data representation

Question 23

RMI

Answer 23

Remote method invocation

Question 24

Soap

Answer 24

Simple object access protocol

Question 25

WCF

Answer 25

Windows communication foundation

Question 26

Primitive operations on files

Answer 26

Create Delete Open Close Read Write Seek Get attributes Set attributes Rename

Question 27

File attributes type

Answer 27

Size Protection Time,date Location

Question 28

Root directory

Answer 28

Unix : / Windows: \

Question 29

FAT

Answer 29

File allocation table

Question 30

Inode size

Answer 30

128 bytes

Question 31

NTFS

Answer 31

New technology file system

Question 32

MFT

Answer 32

Master file table

Question 33

العصا

Answer 33

Actuator arm

Question 34

الشريط

Answer 34

Platter

Question 35

المثلث

Answer 35

Disk sector

Question 36

RAM

Answer 36

Random access memory

Question 37

each byte had

Answer 37

Unique numeric address رقم عنوان مميز

Question 38

each byte had

Answer 38

Unique numeric address رقم عنوان مميز

Question 39

Address size

Answer 39

32 or 64 bit binary number

Question 40

MMU

Answer 40

Memory management unit

Question 41

PRA

Answer 41

Page replacement algorithm

Question 42

TLB

Answer 42

Translation lookaside buffer

Question 43

ISA

Answer 43

Instruction set architecture

Question 44

MIPS

Answer 44

Microprocessor without interlocked pipeline

Question 45

RISC

Answer 45

Reduced instruction set computer

Question 46

CISC in x86 stands for

Answer 46

Complex instruction set computers

Question 47

ILP

Answer 47

Instruction level parallelism