Applications communicate with kernel by using:
1.System Calls
2.C Programs
3.Shell Script
4.Shell
Posted Date:-2021-06-28 12:06:54
At start of process execution, STDOUT & STDERR
1.Point to current terminal device
2.Are closed
3.Point to special files on the system
4.None of the mentioned
Posted Date:-2021-06-28 12:06:54
Command used to count number of character in a file is
1.grep
2.wc
3.count
4.cut
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Command used to determine the path of an executable file is
1.which
2.where
3.wexec
4.what
Posted Date:-2021-06-28 12:06:54
Find / -name * will
1.List all files and directories recursively starting from /
2.List a file named * in /
3.List all files in / directory
4.List all files and directories in / directory
Posted Date:-2021-06-28 12:06:54
How do you get help about the command cp?
1.help cp
2.man cp
3.cd ?
4.none of the mentioned
Posted Date:-2021-06-28 12:06:54
ILP32 stands for
1.32 bit Integer, Long & Pointer
2.32 bit Integrated Long & Pointer
3.32 bit Intelligent Long & Pointer
4.32 bit Long & Pointer
Posted Date:-2021-06-28 12:06:54
Lp0 device file is used to access:
1.Floppy
2.Cdrom
3.Printer
4.Tape drive
Posted Date:-2021-06-28 12:06:54
Single Unix Specification Version 2 provides enhanced support for
1.16 bit Unix
2.32 bit Unix
3.64 bit Unix
4.8 bit Unix
Posted Date:-2021-06-28 12:06:54
Solaris is the name of a flavor of UNIX from
1.HP
2.IBM
3.Digital Equipment Corp
4.Sun Microsystems
Posted Date:-2021-06-28 12:06:54
SVR4 stands for?
1.Standard Version Release 4
2.System Version Release 4
3.Standard Five Release 4
4.System Five Release 4
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SVR4 was developed by
1.Sun Microsystems
2.AT&T
3.University of Berkeley
4.Sun and AT&T jointly
Posted Date:-2021-06-28 12:06:54
Syntax of any Unix command is:
1.command [options] [arguments].
2.command options [arguments].
3.command [options] [arguments].
4.command options arguments
Posted Date:-2021-06-28 12:06:54
The command mknod myfifo b 4 16
1.Will create a block device if user is root
2.Will create a block device for all users
3.Will create a FIFO if user is not root
4.None of the mentioned
Posted Date:-2021-06-28 12:06:54
The dmesg command
1.Shows user login logoff attempts
2.Shows the syslog file for info messages
3.kernel log messages
4.Shows the daemon log messages
Posted Date:-2021-06-28 12:06:54
The system calls in UNIX is written using which language
1.C
2.C++
3.Assembly Language
4.Fortran
Posted Date:-2021-06-28 12:06:54
To increase the response time and throughput, the kernel minimizes the frequency of disk access by keeping a pool of internal data buffer called
1.Pooling
2.Spooling
3.Buffer cache
4.Swapping
Posted Date:-2021-06-28 12:06:54
Unix is which kind of Operating System?
1.Multi User
2.Multi Processes
3.Multi Tasking
4.All of the mentioned
Posted Date:-2021-06-28 12:06:54
Using which command you find resource limits to the session?
1.rlimit
2.ulimit
3.setrlimit
4.getrlimit
Posted Date:-2021-06-28 12:06:54
What control character signals the end of the input file?
1.ctrl + a
2.ctrl + b
3.ctrl + c
4.ctrl + d
Posted Date:-2021-06-28 12:06:54
Which among the following interacts directly with system hardware?
1.Shell
2.Commands
3.Kernel
4.Applications
Posted Date:-2021-06-28 12:06:54
Which among the following is used to write small programs to control Unix functionalities?
1.Shell Commands
2.Shell Script
3.Filters
4.C Language
Posted Date:-2021-06-28 12:06:54
Which command changes a files group owner
1.cgrp
2.chgrp
3.change
4.group
Posted Date:-2021-06-28 12:06:54
Which command creates an empty file if file does not exist?
1.cat
2.touch
3.ed
4.read
Posted Date:-2021-06-28 12:06:54
Which command is used to display disk consumption of a specific directory
1.du
2.ds
3.dd
4.dds
Posted Date:-2021-06-28 12:06:54
Which command is used to display the octal value of the text
1.octal
2.text_oct
3.oct
4.od
Posted Date:-2021-06-28 12:06:54
Which command is used to display the operating system name
1.os
2.unix
3.kernel
4.uname
Posted Date:-2021-06-28 12:06:54
Which command is used to display the unix version
1.uname -r
2.uname -n
3.uname -t
4.kernel
Posted Date:-2021-06-28 12:06:54
Which command is used to extract a column from a text file
1.paste
2.get
3.cut
4.tar
Posted Date:-2021-06-28 12:06:54
Which command is used to extract intermediate result in a pipeline
1.tee
2.extract
3.exec
4.none of the mentioned
Posted Date:-2021-06-28 12:06:54
Which command is used to identify file type?
1.Type
2.File
3.Finfo
4.Info
Posted Date:-2021-06-28 12:06:54
Which command is used to perform backup in unix?
1.backup
2.cpio
3.zip
4.gzip
Posted Date:-2021-06-28 12:06:54
Which command is used to print a file
1.print
2.ptr
3.lpr
4.none of the mentioned
Posted Date:-2021-06-28 12:06:54
Which command is used to record a user login session in a file
1.macro
2.read
3.script
4.none of the mentioned
Posted Date:-2021-06-28 12:06:54
Which command is used to set terminal IO characteristic?
1.tty
2.ctty
3.ptty
4.stty
Posted Date:-2021-06-28 12:06:54
Which command is used to view compressed text file contents
1.cat
2. type
3.zcat
4.print
Posted Date:-2021-06-28 12:06:54
Which commands will give you information about how much disk space each file in the current directory uses?
1.ls -l
2.Is -la
3.du
4.ls -a
Posted Date:-2021-06-28 12:06:54
Which is the core of the operating system?
1.Shell
2.Kernel
3.Commands
4.Script
Posted Date:-2021-06-28 12:06:54
Which of the following command output contains userid?
1.ls
2.help
3.date
4.ls –l
Posted Date:-2021-06-28 12:06:54
Which of the following enables multi-tasking in UNIX?
1.Time Sharing
2.Multi programming
3.Multi user
4.Modularity
Posted Date:-2021-06-28 12:06:54
Which of the following is considered as the super daemon in Unix?
1.sysinit
2.init
3.inetd
4.proc
Posted Date:-2021-06-28 12:06:54
Which of the following is NOT a UNIX variant ?
1.Solaris
2.AIX
3.IRIX
4.AS400
Posted Date:-2021-06-28 12:06:54
Which of the following statement is FALSE ?
1.Unix supports multiple users
2.Linux is an open source operating system and the source code is shared
3.Shell takes care of inter process communication
4.Shell provides the feature of I/O Redirection
Posted Date:-2021-06-28 12:06:54
Which of the following UNIX flavor is from IBM?
1.BSD
2.Solaris
3.HP-UX
4.AIX
Posted Date:-2021-06-28 12:06:54
Which of these commands could you use to show one page of output at a time?
1.less
2.sed
3.pause
4.grep
Posted Date:-2021-06-28 12:06:54
Which of these is not a Unix Flavor?
1.BSD
2.MAC
3.AIX
4.IRIX
Posted Date:-2021-06-28 12:06:54
Which option of ls command used to view file inode number
1.–l
2.-o
3.–a
4.–i
Posted Date:-2021-06-28 12:06:54
Which option of rm command is used to remove a directory with all its subdirectories
1.–b
2.–o
3.–p
4.–r
Posted Date:-2021-06-28 12:06:54
wtmp and utmp files contain:
1.Temporary system data
2.User login-logout log
3.The users command execution log
4.The users su and sudo attempts
Posted Date:-2021-06-28 12:06:54
x86-32 uses which programming model?
1.IP16
2.IP32
3.ILP16
4.ILP32
Posted Date:-2021-06-28 12:06:54