A communication end-point is identified by
1.ip address
2.port number
3.both IP address and port number
4.none of the mentioned
A server which is handling many clients at a time is called as
1.single server
2.multiserver
3.concurrent server
4.iterative server
A server which is handling one client at a time is called as
1.single server
2.multiserver
3.concurrent server
4.iterative server
Collection of files is called as a
1.Directory
2.Root
3.Field
4.Home
Command used to check shared memory is
1.ipcs
2.ipcs -m
3.ipcs -s
4.ipcs -q
Daemon process is a?
1.group leader
2.ession leader
3.orphan process
4.all of the mentioned
For what based of PC’s, Linux was specifically designed?
1.Intel
2.HCL
3.Wipro
4.IBM
From where did the file system can be used to unambiguously identified and referenced?
1.Tree structure
2.Folders
3.Home directory
4.Root directory
he terminal used by a Daemon process is:
1.any terminal
2.no terminal
3.root terminal
4.system console
How much of memory space is occupied by Linux?
1.4 MB
2.6 MB
3.8 MB
4.12 MB
In Linux hard disk partition, hda2, a stands for the __
1.first hard drive
2.first partition
3.second partition
4.second hard drive
Linux default shell is
1.BAH shell
2.SH shell
3.ASH shell
4.BASH shell
Message queues are created in
1.userspace
2.kernelspace
3.userspace & kernelspace
4.none of the mentioned
Monolithic kernel
1.is highly extensiblity
2.has less run time overhead
3. smaller than micro level
4.suitable for real time system
One process requires M resource to complete a job. What should be the minimum number of resources available for N processes so that at least one process can continue to execute without blocking/waiting?
1.M * N
2.M * N – 1
3.M * N + 1
4.M
Pick the run level to run Linux in multi user mode with networking?
1.0
2.3
3.5
4.6
Race condition can be avoided by using
1.semaphore
2.mutex
3.socket
4.both semaphore & mutex
Runlevel system command is used for?
1.getting the present and previous runlevel of the system
2.setting the runlevel attribute of the system in the inittab file
3.can be used to restart or reboot the system
4.all of the mentioned
Section 2 of manpage describes
1.Commands
2.System calls
3.Function calls
4.Drivers
Semaphore P( ) operation usually does the following:
1.descrements the semaphore count and the process sleeps if needed
2.increments the semaphore count
3.wakes up a sleeping process
4.none of the mentioned
Single dot (.) with cd refers to ___
1.Change directory
2.Created directory
3.Current directory
4.Parent directory
Sysconf(_SC_PAGE_SIZE) returns?
1.size of the page
2.max size of the page
3.min size of the page
4.paging allowed or not
System call can be implemented using which assembly instruction(s) on x86 processors?
1.int 0×80
2.sysenter
3.both int 0×80 & sysenter
4.None
The complete path name of a file or directory is
1.Root name
2.Tree name
3.Relative path name
4.Absolute path name
The file name can be up to ___ character.
1.253
2.254
3.255
4.256
The prompt of the root user is
1.@
2.#
3.%
4.$
The structure which keeps the information about shared memory in the kernel is
1.struct ipc_perm
2.struct semid_ds
3.struct shmid_ds
4.struct msgid_ds
UNIX/Linux kernel is?
1.Monolithic
2.Micro
3.Exo
4.Nano
What is the other name of new shell?
1.Baby shell
2.Junior shell
3.Child shell
4.Assistant shell
What is the persistancy level of Shared memory segments?
1.signal
2.process
3.file system
4.kernel
What should be the minimum length of a password?
1.5
2.6
3.7
4.8
What type of editing is possible by Ed editor?
1.One command
2.One file
3.One line
4.One page
What was the first version of Linux?
1.1.0
2.0.11
3.1.01
4.0.1
When we want replace a file system we have to ____ the present file system.
1.Cancel
2.Remove
3.Unmount
4.Mount
Where do the users arrive after entering exit in Linux system?
1.Login screen
2.Internet
3.Logout screen
4.Login prompt
Which call to use to set the resource count of semaphore?
1.semget( )
2.semctl( )
3.sem_setcount( )
4.sem_set_count( )
Which command is called as the end-of-file command?
1.Ctrl+ V
2.Ctrl+ B
3.Ctrl+ D
4.Ctrl+ C
Which feature is used to prevent overwriting an existing file the redirection operation?
1.Mkfs
2.Man
3.Cat
4.Noclobber
Which has excellent support for older hardware?
1.Unix
2.Linux
3.Minix
4.Xenix
Which is Fastest IPC?
1.Message Queue
2.shared memory
3.Socket
4.All of the mentioned
Which is not the correct option for removing a message queue
1.ipcrm -Q
2.ipcrm -q
3.ipcrm -m
4.none of the mentioned
Which of the following exec call is a system call?
1.execl
2.execlp
3.execve
4.execvp
Which of the following is called as the piping symbol?
1._
2.|
3. ~
4. !
Which of the following is called as the redirection operator for output?
1.=
2.<<
3.<
4.>
Which system call is used to create Sys V message Queue.
1.msgget
2.shemget
3.semget
4.msgctl
Who are placeholders to store values?
1.Constants
2.Variables
3.OS
4.Shell
Who can change the password of any user?
1.Everyone
2.SA
3.Supervisor
4.End-user
x86 architecture uses big endian or little endian addressing mechanism?
1. little-endian
2.endian
3.big-endian
4.none of the mentioned
___ command clears the screen.
1.Clear
2.Cls
3.Clear all
4.Clean screen
__________ timer is decremented only when the process is executing
1.ITIMER_REAL
2.ITIMER_VIRTUAL
3.ITIMER_PROF
4.None of the mentioned