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Title Name Amity Solved Assignment Basics of OS (UNIX LINUX and Shell Programming
University AMITY
Service Type Assignment
Course B.Sc-(IT)
Semester Semester-V Course: B.Sc-(IT)
Short Name or Subject Code Basics of OS (UNIX LINUX and Shell Programming)
Commerce line item Type Semester-V Course: B.Sc-(IT)
Product Assignment of B.Sc-(IT) Semester-V (AMITY)
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Solved Assignment


  Questions :-

                                                                                                                              Basics of OS (UNIX LINUX and Shell Programming) 

Assignment A

  1. How are devices represented in UNIX?
  1. Brief about the directory representation in UNIX.

     3. What are the Unix system calls for I/O?         

   4. What are links and symbolic links in UNIX file system?     

  1. How do you create special files like named pipes and device files
  2. Discuss in brief the mount and unmounts system calls.
  3. How does the in ode map to data block of a file?
  4. Brief about the initial process sequence while the system boots up.

 

 

Assignment B 

Case Detail: 

Answer the questions

  1. Explain how the buffer cache is used by the file system.

    2.What is the difference between Swapping and Paging?

  1. What is IPC? What are the various schemes available?

 

 

 

Assignment C 

Question No.  1          Marks – 10

How many layers are there in Unix architecture  

Options          

  1. 1
  2. 4
  3. 6
  4. 5

 

Question No.  2          Marks - 10

Which is the correct sequence of Unix Architecture           

Options          

  1. Hardware Applications   Shell Kernel          
  2. Applications Hardware Shell Kernel
  3. Hardware Shell Applications   Kernel          
  4. Hardware Kernel Shell Application

 

Question No.  3          Marks - 10

In Unix name the layer that interacts with hardware       

Options          

  1. Shell
  2. Kernel
  3. Application
  4. Software

 

Question No.  4          Marks - 10

Where douser issue a comman in unix       

 Options         

  1. kernel
  2. shell
  3. monitor
  4. application

 

Question No.  5          Marks - 10

Which command will print the name of logged in user?  

 Options         

  1. echo user
  2. echo USER
  3. echo $user
  4. echo $USER

 

Question No.  6          Marks - 10

Which among the following is a valid UNIX command? 

Options          

  1. LS
  2. ls
  3. Ls
  4. lS

 

Question No.  7          Marks - 10

Which type of variable HOME is? 

 Options         

  1. Environment variable
  2. system variable
  3. local variable
  4. kernel variable

 

Question No.  8          Marks - 10

Which command will print the current directory the user is into?          

Options          

  1. cwd
  2. pwd
  3. lwd
  4. swd

 

Question No.  9          Marks - 10

Which variable stores the home directory of user 

 Options         

  1. HUSER
  2. HOME
  3. USER
  4. Home

 

Question No.  10        Marks - 10

How can we find out the User´s login shell?          

 Options         

  1. echo $Shell
  2. echo $login
  3. echo SHELL
  4. echo $SHELL

 

Question No.  11        Marks - 10

Which command will print the calender of current month?        

 Options         

  1. cal cur
  2. cal month
  3. cal
  4. calender

 

Question No.  12        Marks - 10

which command will print the calender of March 2010   

 Options         

  1. cal 201003
  2. cal 2010 03
  3. cal 03 2010
  4. CAL 2010 03

 

Question No.  13        Marks - 10

How can we display the todays date in unix?        

Options          

  1. today
  2. TODAY
  3. DATE
  4. date

 

Question No.  14        Marks - 10

which option is used to display only the current month number in date command?     

 Options         

  1. %m
  2. %h
  3. %month
  4. %mm

 

Question No.  15        Marks - 10

which option is used to display only the current month name in date command?         

Options          

  1. %m
  2. %h
  3. %month
  4. %mm

 

Question No.  16        Marks - 10

If current month is august then which of the following will correctly out put the month details in format Aug 08           

Options          

  1. date +"%m %h"
  2. date +"%h %m"
  3. date +"hm"
  4. date +"mh"

 

Question No.  17        Marks - 10

Which command is used to display a simple string on command prompt          

 Options         

  1. echo
  2. print
  3. display
  4. cat

 

Question No.  18        Marks - 10

Which command is used to display the information of the all logged in users? 

 Options         

  1. WHO
  2. who
  3. ALL
  4. all

 

Question No.  19        Marks - 10

Which command will change the current directory?        

 Options         

  1. cd
  2. pd
  3. pwd
  4. ld

 

Question No.  20        Marks - 10

If the directory structur is as below:

  D1 has D2 and D3

  D2 has D4

  D3 has D5

If you are in D2 directory, how will you reach to D1?     

Options          

  1. cd ..
  2. cd /
  3. cd .
  4. cd ./

 

Question No.  21        Marks - 10

If the directory structur is as below:

  D1 has D2 and D3

  D2 has D4

  D3 has D5

If you are in D1 directory, how will you reach to D5?     

Options          

  1. cd /D3/D5
  2. cd ./D3/D5
  3. cd ../D3/D5
  4. cd /../D3/D5

 

Question No.  22        Marks - 10

If the directory structur is as below:

  D1 has D2 and D3

  D2 has D4

  D3 has D5

If you are in D4 directory, how will you reach to D1?     

Options          

  1. cd ./..
  2. cd ../.
  3. cd ../..
  4. cd /../..

 

Question No.  23        Marks - 10

If the directory structur is as below:

  D1 has D2 and D3

  D2 has D4

  D3 has D5

If you are in D2 directory, how will you reach to D5?       

Options          

  1. cd ../D5/D3
  2. cd ../D3/D5
  3. cd D3/D5
  4. cd D5/D3

 

Question No.  24        Marks - 10

If the directory structur is as below:

  D1 has D2 and D3

  D2 has D4

  D3 has D5

If you are in D3 directory, how will you reach to D41?   

Options          

  1. cd D3/D2/D4
  2. cd D2/D4
  3. cd ../D2/D4
  4. cd ./D2/D5

 

Question No.  25        Marks - 10

Which command will create a directory?  

Options          

  1. cdir
  2. mkdir
  3. make
  4. create

 

Question No.  26        Marks - 10

Which command will create a direcory with name Test in current directory?  

Options          

  1. make Test
  2. mkdir Test
  3. create Test
  4. cdir Test

 

Question No.  27        Marks - 10

Which command will remove a directory?

Options          

  1. remove
  2. rename
  3. move
  4. rmdir

 

Question No.  28        Marks - 10

Why do we us ls commad?  

Options          

  1. To display list of users
  2. to display list of files
  3. to display list of processes
  4. To display variables

 

Question No.  29        Marks - 10

Which command will print a detailed listing of file?         

 Options         

  1. ls -d
  2. ls -f
  3. ls -l
  4. ls -k

 

Question No.  30        Marks - 10

How ls is used to display the files in reverse order?          

Options          

  1. ls -r
  2. ls -R
  3. ls -d
  4. ls -l

 

Question No.  31        Marks - 10

How file listing can be sorted by modification time?         

Options          

  1. ls -d
  2. ls -l
  3. ls -t
  4. ls -u

 

Question No.  32        Marks - 10

Which of the following commands is used to copy a file wb from the programs directory into a file called wbx in the misc directory?  

Options          

  1. copy programs/wb misc/wbx
  2. cp programs/wb misc/wbx
  3. mv programs/wb misc/wbx
  4. put programs/wb misc/wbx

 

Question No.  33        Marks - 10

Which command is used to create a dupliacte of an existing file?           

 Options         

  1. cp
  2. copy
  3. mv programs/wb misc/wbx
  4. duplicate

 

Question No.  34        Marks - 10

How can we create a copy of file Test which is in current diretory? The new file should be created in source directory        

Options          

  1. cp Test Source/Test
  2. copy Test Source/Test
  3. cp Source/Test  Test  
  4. copy Source/Test  Test

 

Question No.  35        Marks - 10

How a file can be removed in UNIX?        

Options          

  1. remove filename
  2. rm filename
  3. filename rm
  4. filename remove

 

Question No.  36        Marks - 10

How can we rename a file Test as Testbk?

Options          

  1. rename Test Testbk
  2. rm Test Testbk
  3. mv Test Testbk
  4. cp Test Testbk

 

Question No.  37        Marks - 10

How can we print the content of a file Test on screen?    

Options          

  1. display Test
  2. echo Test
  3. cat Test
  4. con Test

 

Question No.  38        Marks - 10

how can a file named as Test be created by taking data from screen?   

Options          

  1. cat >>Test     
  2. cat Test          
  3. cr Test
  4. cr >> Test

 

Question No.  39        Marks - 10

How can the content of file Test can be appended into the file Testbk? 

Options          

  1. cat Test>Test1
  2. cat Test>>Test1
  3. cat Test1>Test
  4. cat Tes1t>>Test

 

Question No.  40        Marks - 10

Which of the following options will print the no of characters in a file?

Options          

  1. count filename
  2. wc -c filename
  3. count -c filename
  4. wc -l filename

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