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Operating System
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OS Processes
43
OS Distributed Communication
49
OS CPU Scheduling
42
OS Process Synchronization
58
OS Deadlocks
53
OS Memory Management
93
OS I/O Systems
35
OS Real Time Operating Systems(RTOS)
46
OS Multimedia Systems
63
OS Security
72
OS The Linux System
145
OS File Systems and Their Implementation
152
OS Mass-Storage Structures
84
OS Protection
58
OS Distributed File Systems
88
Show/Hide Answers
OS The Linux System
In UNIX, the set of masked signals can be set or cleared using the ________ function.
sigmask
sigmaskproc
sigprocmask
sigproc
Author:
rikazzz
Comment
OS Processes
The number of processes completed per unit time is known as __________
Output
Throughput
Efficiency
Capacity
The number of processes completed per unit time is known as Throughput. Suppose there are 4 processes A, B, C & D they are taking 1, 3, 4 & 7 units of time respectively for their executions. For 10 units of time, throughput is high if process A, B & C are running first as 3 processes can execute. If process C runs first then throughput is low as maximum only 2 processes can execute. Throughput is low for processes which take a long time for execution. Throughput is high for processes which take a short time for execution.
Author:
rikazzz
Comment
OS The Linux System
A heavy weight process ___________
has multiple threads of execution
has a single thread of execution
can have multiple or a single thread for execution
none of the mentioned
Author:
rikazzz
Comment
OS CPU Scheduling
An I/O bound program will typically have ____________
a few very short CPU bursts
many very short I/O bursts
many very short CPU bursts
a few very short I/O bursts
Author:
rikazzz
Comment
OS The Linux System
Each connection arriving at multi threaded servers via network is generally ____________
is directly put into the blocking queue
is wrapped as a task and passed on to a thread pool
is kept in a normal queue and then sent to the blocking queue from where it is dequeued
none of the mentioned
Author:
rikazzz
Comment
OS Multimedia Systems
Multicasting delivers the content to ___________
a single client
all clients, regardless whether they want the content or not
a group of receivers who indicate they wish to receive the content
none of the mentioned
Author:
rikazzz
Comment
OS Memory Management
The offset ‘d’ of the logical address must be ____________
greater than segment limit
between 0 and segment limit
between 0 and the segment number
greater than the segment number
Author:
rikazzz
Comment
OS File Systems and Their Implementation
By preallocating the inodes and spreading them across the volume, we ___________ the system performance.
improve
decrease
maintain
do not affect
Author:
rikazzz
Comment
OS I/O Systems
The _________ are reserved for events such as unrecoverable memory errors.
non maskable interrupts
blocked interrupts
maskable interrupts
none of the mentioned
Author:
rikazzz
Comment
OS File Systems and Their Implementation
Sequential access method ______ on random access devices.
works well
doesnt work well
maybe works well and doesnt work well
none of the mentioned
Author:
rikazzz
Comment
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