Q.1
Is the core of the operating system?
  • shell
  • kernel
  • commands
  • script
Q.2
Is the default maximum number of processes that can exist in Linux?
  • 32768
  • 1024
  • 4096
  • unlimited
Q.3
Returns?
  • size of the page
  • max size of the page
  • min size of the page
  • paging allowed or not
Q.4
Memory can be used for?
  • read only operations
  • append
  • read or read write operations
  • write only
Q.5
Process is a?
  • group leader
  • session leader
  • orphan process
  • all the above
Q.6
Terminal used by a Daemon process is:
  • any terminal
  • no terminal
  • b) root terminal
  • system console
Q.7
Timer is decremented only when the process is executing
  • itimer_real
  • itimer_virtual
  • itimer_prof
  • none of the above
Q.8
Of the following exec call is a system call?
  • execl
  • execlp
  • execve
  • execvp
Q.9
Call can be implemented using which assembly instruction(s) on xprocessors?
  • int 0??80
  • sysenter
  • both a & b
  • none
Q.10
2 of manpage describes
  • commands
  • system calls
  • function calls
  • drivers
Q.11
The run level to run Linux in multi user mode with networking?
  • 0
  • 3
  • 5
  • 6
Q.12
System command is used for?
  • getting the present and previous runlevel of the system
  • setting the runlevel attribute of the system in the inittab file
  • can be used to restart or reboot the system
  • all of the above
Q.13
These files which has an ELF format
  • shared objects
  • core
  • executables
  • all of the above
Q.14
One of the thread in multithreaded process is blocked on an I/O, which of the following is true?
  • the entire process with block if their is no kernel supported threads
  • other threads of the process will continue to execute even if there is no kernel supported threads
  • it depends on specific implementatation
  • all of the above
Q.15
Kernel is?
  • monolithic
  • micro
  • exo
  • nano
Q.16
Kernel
  • is highly extensiblity
  • has less run time overhead
  • smaller than micro level
  • suitable for real time system
Q.17
Page table per process entity?
  • yes
  • no
Q.18
Maintains?
  • memory files
  • open files
  • pipe
  • active memory regions
Q.19
System has 512MB of physical memory. Which among the following is not a suitable virtual memory size for this system architecture?
  • 512mb
  • 256m
  • 4gb
  • none of the above
Q.20
X86-Linux, at which address the user stack resides normally?
  • 0x00000000
  • 0x3fff0000
  • 0x7fff0000
  • 0xbfff0000
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