Applications communicate with kernel by using:
1.System Calls
2.C Programs
3.Shell Script
4.Shell
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
Command used to count number of character in a file is
1.grep
2.wc
3.count
4.cut
Command used to determine the path of an executable file is
1.which
2.where
3.wexec
4.what
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
How do you get help about the command cp?
1.help cp
2.man cp
3.cd ?
4.none of the mentioned
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
Lp0 device file is used to access:
1.Floppy
2.Cdrom
3.Printer
4.Tape drive
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
Solaris is the name of a flavor of UNIX from
1.HP
2.IBM
3.Digital Equipment Corp
4.Sun Microsystems
SVR4 stands for?
1.Standard Version Release 4
2.System Version Release 4
3.Standard Five Release 4
4.System Five Release 4
SVR4 was developed by
1.Sun Microsystems
2.AT&T
3.University of Berkeley
4.Sun and AT&T jointly
Syntax of any Unix command is:
1.command [options] [arguments].
2.command options [arguments].
3.command [options] [arguments].
4.command options arguments
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
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
The system calls in UNIX is written using which language
1.C
2.C++
3.Assembly Language
4.Fortran
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
Unix is which kind of Operating System?
1.Multi User
2.Multi Processes
3.Multi Tasking
4.All of the mentioned
Using which command you find resource limits to the session?
1.rlimit
2.ulimit
3.setrlimit
4.getrlimit
What control character signals the end of the input file?
1.ctrl + a
2.ctrl + b
3.ctrl + c
4.ctrl + d
Which among the following interacts directly with system hardware?
1.Shell
2.Commands
3.Kernel
4.Applications
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
Which command changes a files group owner
1.cgrp
2.chgrp
3.change
4.group
Which command creates an empty file if file does not exist?
1.cat
2.touch
3.ed
4.read
Which command is used to display disk consumption of a specific directory
1.du
2.ds
3.dd
4.dds
Which command is used to display the octal value of the text
1.octal
2.text_oct
3.oct
4.od
Which command is used to display the operating system name
1.os
2.unix
3.kernel
4.uname
Which command is used to display the unix version
1.uname -r
2.uname -n
3.uname -t
4.kernel
Which command is used to extract a column from a text file
1.paste
2.get
3.cut
4.tar
Which command is used to extract intermediate result in a pipeline
1.tee
2.extract
3.exec
4.none of the mentioned
Which command is used to identify file type?
1.Type
2.File
3.Finfo
4.Info
Which command is used to perform backup in unix?
1.backup
2.cpio
3.zip
4.gzip
Which command is used to print a file
1.print
2.ptr
3.lpr
4.none of the mentioned
Which command is used to record a user login session in a file
1.macro
2.read
3.script
4.none of the mentioned
Which command is used to set terminal IO characteristic?
1.tty
2.ctty
3.ptty
4.stty
Which command is used to view compressed text file contents
1.cat
2. type
3.zcat
4.print
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
Which is the core of the operating system?
1.Shell
2.Kernel
3.Commands
4.Script
Which of the following command output contains userid?
1.ls
2.help
3.date
4.ls –l
Which of the following enables multi-tasking in UNIX?
1.Time Sharing
2.Multi programming
3.Multi user
4.Modularity
Which of the following is considered as the super daemon in Unix?
1.sysinit
2.init
3.inetd
4.proc
Which of the following is NOT a UNIX variant ?
1.Solaris
2.AIX
3.IRIX
4.AS400
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
Which of the following UNIX flavor is from IBM?
1.BSD
2.Solaris
3.HP-UX
4.AIX
Which of these commands could you use to show one page of output at a time?
1.less
2.sed
3.pause
4.grep
Which of these is not a Unix Flavor?
1.BSD
2.MAC
3.AIX
4.IRIX
Which option of ls command used to view file inode number
1.–l
2.-o
3.–a
4.–i
Which option of rm command is used to remove a directory with all its subdirectories
1.–b
2.–o
3.–p
4.–r
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
x86-32 uses which programming model?
1.IP16
2.IP32
3.ILP16
4.ILP32