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operating systems Online Quiz - 95

Description: operating systems Online Quiz - 95
Number of Questions: 20
Created by: Aliensbrain Bot
Tags: operating systems

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What is the default history file in the HP-UX POSIX shell?

technology operating systems

history
$HOME/.history
$HOME/.sh_history
/etc/history

Which command displays the value of the HOME variable?

technology operating systems

echo $HOME
echo "$HOME"
echo HOME
echo $HOME

Which mode is not used in vi editor?

technology operating systems

command mode
insert mode
preserve mode
last line mode

The set_parms command is used to:

technology operating systems

set the hostname
set the time zone
set the IP
all the above

What is the secondary system loader?

technology operating systems

the hpux utility
the init process
PDC
the /stand/system

Which is not a standard state of any HP-UX process

technology operating systems

running
sleeping
zombie
printing

Which file on HP-UX contains a list of standard port numbers for different applications?

technology operating systems

/etc/hosts
/etc/ports
/etc/services
/etc/protocols

condition required for deadlock

technology operating systems

mutual exclusion
no preemtion
hold and wait
cycle

paging technique lead to external fragmentation

technology operating systems

True
False

virtual memory management is a dynamic paging concept

technology operating systems

True
False

which one of following are scheduling algorithm

technology operating systems

fcfs
sjf
round robin
all of the above

external fragmentation can be handled by

technology operating systems

compaction
defragmentation
it cannot be handled
none of the choice

which is the fastest memory

technology operating systems

hard disc
main memory
cpu registers
cache memoy

technique to handle deadlock

technology operating systems

deadlock prevention
deadlock detection
deadlock avoidance
all of the above

indexing is used to sort

technology operating systems

True
False

kernel is known to be the heart of operating sistem

technology operating systems

True
False

What command is used to run another command immune to hangups, logouts,and quits?

technology operating systems

hup
nohup
attachtoroot
daemon

What is sticky bit?

technology operating systems

It is a file permission that allows the program's text part to stay in swap memory after its execution
UNIX don’t have sticky bit
It’s a Linux only feature
None of above

What is shadow in UNIX?

technology operating systems

It is a file
It is a process
It is a command
It is a file containing encrypted password & Login info

can a file's modified timestamp be modified? If so how?

technology operating systems

No
Yes
Yes;using touch command
Yes;using time system call

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operating systems Online Quiz - 95

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