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Operating System
1081
Computer Science Fundamentals
998
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OS File Systems and Their Implementation
Contiguous allocation has two problems _________ and _________ that linked allocation solves.
external – fragmentation & size – declaration
internal – fragmentation & external – fragmentation
size – declaration & internal – fragmentation
memory – allocation & size – declaration
Author:
rikazzz
Comment
OS Deadlocks
The data structures available in the Banker’s algorithm are ____________
Available
Need
Allocation
All of the mentioned
Author:
rikazzz
Comment
Computer Science Fundamentals
The _________ holds the contents of the accessed memory word.
MAR
MBR
PC
IR
The MBR holds the contents of the accessed (read/written) memory word.
Author:
rikazzz
Comment
Computer Science Fundamentals
Which of the following is not a type of numeric value in zoned format?
Positive
Negative
Double
Unsigned
The zoned format can represent numeric values of type Positive, negative and unsigned numbers. A sign indicator is used in the zone position of the rightmost digit.
Author:
rikazzz
Comment
OS CPU Scheduling
In priority scheduling algorithm, when a process arrives at the ready queue, its priority is compared with the priority of ____________
all process
currently running process
parent process
init process
Author:
rikazzz
Comment
Computer Science Fundamentals
It takes one clock cycle to perform a basic operation.
True
False
It takes exactly one clock cycle to perform a basic operation, such as moving a byte of memory from a location to another location in the computer.
Author:
rikazzz
Comment
OS File Systems and Their Implementation
A process _____ lower the priority of another process if both are owned by the same owner.
must
can
cannot
none of the mentioned
Author:
rikazzz
Comment
OS File Systems and Their Implementation
The server maintains a/an ________ that specifies local file systems that it exports for mounting, along with names of machines that are permitted to mount them.
export list
import list
sending list
receiving list
Author:
rikazzz
Comment
OS The Linux System
In virtual memory. the programmer __________ of overlays.
has to take care
does not have to take care
all of the mentioned
none of the mentioned
Author:
rikazzz
Comment
OS Processes
To access the services of operating system, the interface is provided by the ___________
System calls
API
Library
Assembly instructions
To access services of the Operating System an interface is provided by the System Calls. Generally, these are functions written in C and C++. Open, Close, Read, Write are some of most prominently used system calls.
Author:
rikazzz
Comment
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