Introduction to Operating System - Set 2

1. Software which is developed and modified freely is called :
   1. Synchronous Software
   2. Package
   3. Middleware
   4. OSS
   Show Answer

   Answer : D
   Explain: OSS is open source software which is free to use and modify.
2. The best option to relate a process is a _______.
   1. An O.S. itself
   2. Complete Software package
   3. Porgram in execution
   4. Interrupt handler
   Show Answer

   Answer : C
   Explain: Process execution happens when the target process is executed, or a program is execute.
3. The command "ls -l" in Linux is used to :
   1. List all files in the current directory
   2. List files in a long format with detailed information
   3. List only hidden files
   4. Create a new file
   Show Answer

   Answer : B
   Explain: ls is a command used to list computer directories and files. where as ls-l, is list with long format.
4. Which Linux command is used to create a new directory?
   1. mkfile
   2. mkdir
   3. touch
   4. newdir
   Show Answer

   Answer : B
   Explain: mkdir is used to create a new directory and rmdire is used for remove directory.
5. which of the following directory contains configuration files in linux ?
   1. /etc
   2. /opt
   3. /var
   4. /home
   Show Answer

   Answer : A
   Explain: The /etc directory contains the configuration files for the system. All of the files in /etc should be text files.
6. Which command is used to get print of a file in Linux :
   1. cp
   2. ipr
   3. rm
   4. del
   Show Answer

   Answer : B
   Explain: The lpr command submits files for printing
7. The command "cp" in Linux is used to:
   1. Create a new directory
   2. Copy files or directories
   3. Change permissions of a file
   4. Move files or directories
   Show Answer

   Answer : B
   Explain: cp is used for copy in linux.
8. What is the first process in linux system
   1. init
   2. kernel
   3. systemd
   4. cron
   Show Answer

   Answer : A
   Explain: init is the first process to start when the computer boots on in linux and it process id (PID) is 1.
9. In the multithreaded model scheduling of thread execution is a task of ________ ?
   1. Input
   2. Output
   3. Memory
   4. O.S.
   Show Answer

   Answer : D
   Explain: Within a program, a Thread is a separate execution path. It is a lightweight process that the operating system can schedule