UNiX Quiz - Answer the Questions.
Answer the following UNIX Questions.
1. In Unix inter process communication takes place using?
2. The Very first process created by kernel is?
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Answer the following UNIX Questions.
1. In Unix inter process communication takes place using?
2. The Very first process created by kernel is?Replies
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Replies
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Member • Aug 9, 2011
2. fork() or boot loader?
1.Shared memory or sockets?(A wild guess)Are you sure? This action cannot be undone. -
Member • Aug 18, 2011
IPC takes place using sockets, semaphores, monitors, mutex etc. There are well defined functions like send() & receive() to send & receive messages in between processes.
init process is created first by kernel having process id 1.Are you sure? This action cannot be undone. -
Member • Aug 18, 2011
Right answers Vik 😀
3. What is an i-node number?
4. What is an UNIX Shell? How many shells UNIX OS have?Are you sure? This action cannot be undone. -
Member • Aug 20, 2011
3.Each file name has a number added to it. In inode table it is easy for us to find out the size,file type,location,user id,time,access mode using this number associated with each file name.Are you sure? This action cannot be undone. -
Member • Aug 20, 2011
Unix shell is a command interpreter which accepts commands from user and print the responses. It acts a means of communication between the user and the unix operating system.
This program(unix command interpreter is invoked when you start the unix terminal)
csh,ksh,bash,zsh are the shells which UNIX OS have.Are you sure? This action cannot be undone. -
Member • Aug 21, 2011
5. What are the stages of a process?
6. What is chmod ?Are you sure? This action cannot be undone. -
Member • Aug 24, 2011
2: it's fork().Are you sure? This action cannot be undone. -
Member • Sep 1, 2011
6. chmod is a command used to change the mode of a file.
Ex - from reading mode to writing mode etc etc..Are you sure? This action cannot be undone. -
Member • Sep 3, 2011
5- if you mean states of a process it can be: Running, Ready, Blocked, Suspended and Terminated.Are you sure? This action cannot be undone. -
Member • Sep 3, 2011
Add Runnable... 😀Maitham.k5- if you mean states of a process it can be: Running, Ready, Blocked, Suspended and Terminated.
Regarding CHMOD, Sada is kind of correct, but it deals with the permissions...
When a file is writable and readable plus executable by world, it is 777, where,
The first 7 for Owner
Second 7 for Users
Last 7 for Others...
The permissions come this way...
111 in binary = 7
So, it stands for
Read, Write, Execute (RWX)
If a file is only Read, then the value will be 1 0 0 => 4 (R--)
If only Write, then 0 1 0 => 2 (-W-)
Only an executable? Simple! 1 (--X)
If a file is readable and writable, it would be 6 (RW-), and for most of the executions, it would 7 (RWX)
Am I too brief?Are you sure? This action cannot be undone. -
Member • Sep 15, 2011
tell me more about linux .Are you sure? This action cannot be undone. -
Member • Sep 18, 2011
@Vinci, be more specific. To know more about linux, there's always a Wikipedia entry for it. If you have a specific question, please do ask. 😀Are you sure? This action cannot be undone.