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This set of Operating System Architecture Multiple Choice Questions & Answers (MCQs) focuses on Operating System Architecture Set 2
Q1 | Programs like shell and editors (ed and vi) interact with the kernal by invoking
- system calls
- systems hardware
- n/w program
- interfacing hardware
Q2 | Internal or external command is checked using
- ls
- tty
- etc
- type
Q3 | The standard name for executable files produced by c compiler is
- b.out
- c.out
- a.out
- d.out
Q4 | script is run for successful login
- /etc/profile
- /etc/str
- /etc/strtms
- /etc/.conf
Q5 | The root node in the file system is write as
- /
- \\
- /..
- ../
Q6 | interacts with inner part of kernel
- interface
- shell
- terminal
- compiler
Q7 | is used to stop a process
- kill
- remove
- clear
- overt
Q8 | directory attributes are displayed by
- ls-l-a
- ls-l-b
- ls-l-c
- ls-l-d
Q9 | The x in the cat x command is
- binary file
- data file
- text file
- source file
Q10 | what is the run level for shut down and reboot respectively
- 0 and 6
- 1 and 6
- 0 and 4
- 1 and 4
Q11 | The text formatting program traff
- expects to find new line character at the end of each line of text
- expects to find last character at the end of each line of text
- expects to find each line of text
- expects to neglect each line of text
Q12 | The system acctcom accounting program
- expects to find variable length records
- expects to find fixed length record
- expects to sort the records
- expects to merge the records
Q13 | permission to access the file is controlled by
- n/w structure
- directory structure
- access permissions
- file structure
Q14 | To the user,the unix system treats devices as if they are
- devices
- interfaces
- hardware
- files
Q15 | Two invocations copy copy.c newcopy.c copy copy newcopy
- 1st is carrect
- 2nd is carrect
- both carrect
- both wrong
Q16 | In processing environment of unix
- a program is an executable file and process is an instance of the program in execution
- a process is an executable file and program is a instance of the process in execution
- a process and program are both same
- all above are carrect
Q17 | The fork system call
- creates a new program
- creates a new interface
- creates a new hardware
- creates a new process
Q18 | What command do you have to use to go to parent directory
- cd-,
- cd -
- cd/up
- cd..
Q19 | The command used to display a specified file
- mkdir
- chmod
- cat
- compress
Q20 | root in unix system is represented by
- %
- \\
- $
- /
Q21 | what does cd.. Do ?
- not a valid unix command
- logs out of the computer
- changes the working directory to login directory
- " " " " " the parent of current working directory
Q22 | What does command LS do
- opening a file
- display contents of a file
- display of file & folders, present in the folder where you are
- shows a calender
Q23 | Why is PWD used
- show current user
- show present working directory
- to display error messages
- to copy files
Q24 | Which is the carrect command to list files& folders in unix
- list
- ls
- dir
- list files
Q25 | How can you display a list of files including hidden files
- find all
- ls-a
- ls-b
- all answers a,b,c