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Operating System
1081
Computer Science Fundamentals
998
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OS Process Synchronization
What are Spinlocks?
CPU cycles wasting locks over critical sections of programs
Locks that avoid time wastage in context switches
Locks that work better on multiprocessor systems
All of the mentioned
Author:
rikazzz
Comment
Computer Science Fundamentals
CPU has built-in ability to execute a particular set of machine instructions, called as __________
Instruction Set
Registers
Sequence Set
User instructions
An instruction is any task which is to be performed by the processor. Instructions are stored in the register. Instruction set is the set of machine instructions.
Author:
rikazzz
Comment
Computer Science Fundamentals
The software substituted for hardware and stored in ROM.
Synchronous Software
Package Software
Firmware
Middleware
Software refers to a collection of programs. Firm wares act as a link between the hardware and the system. It is stored in read only memory.
Author:
rikazzz
Comment
Computer Science Fundamentals
_____ LAN topology describes the possible connections between pairs of networked end-points that can communicate.
Complex
Physical
Logical
Incremental
A logical LAN topology describes the possible connections. LAN stands for Local Area Network.
Author:
rikazzz
Comment
OS Process Synchronization
A monitor is characterized by ____________
a set of programmer defined operators
an identifier
the number of variables in it
all of the mentioned
Author:
rikazzz
Comment
OS Real Time Operating Systems(RTOS)
In rate monotonic scheduling ____________
shorter duration job has higher priority
longer duration job has higher priority
priority does not depend on the duration of the job
none of the mentioned
Author:
rikazzz
Comment
OS Distributed File Systems
Logical extension of computation migration is ___________
process migration
system migration
thread migration
data migration
Author:
rikazzz
Comment
Computer Science Fundamentals
______ generation of computer started with using vacuum tubes as the basic components.
1st
2nd
3rd
4th
First generation of computer started with using vacuum tubes as the basic components for memory and circuitry for CPU(Central Processing Unit).
Author:
rikazzz
Comment
Computer Science Fundamentals
Which of the following isn’t a level of abstraction?
physical
logical
user
view
There are three levels of abstraction: physical, logical and the view level. These three levels are involved in DBMS.
Author:
rikazzz
Comment
OS File Systems and Their Implementation
For any type of access, contiguous allocation requires ______ access to get a disk block.
only one
at least two
exactly two
none of the mentioned
We can easily keep the initial address of the file in memory and calculate immediately the disk address of the ith block and read it directly.
Author:
rikazzz
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