Useful Interview Questions For UNIX System Administrators

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Published: 27th November 2009
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A UNIX system administrator is a highly technical individual who is responsible for maintaining a multi-user computer system, including a local-area network. He or she adds and configures new workstations, set up user accounts, installs system-wide software, perform procedures to prevent the spread of viruses, and allocate mass storage space.

Listed below are some common interview questions that come up again and again during interviews for the post of UNIX system administrator.

1. What do you mean by a semaphore?
A semaphore is a type of inter process communication resource used for synchronization and mutual exclusion between any two asynchronous processes.

2. What do you understand by COM?
COM or Component Object Model is a Microsoft platform for software components. It is used to enable cross-application communication and dynamic object creation in any programming language that supports the technology. COM is often used in the software development world as an umbrella term that encompasses the OLE, ActiveX, COM+ and DCOM technologies.

3. What do you mean by UNIX?
UNIX developed by Ken Thompson and Dennis Ritchie in 1969 by a group of AT&T employees at Bell Labs. It runs on a range of computers from microprocessors to the largest mainframes.

4. Define some of the functions of a kernel?
The kernel is a part of the Operating System that interacts directly with the hardware of computer, through device drivers that are built into the kernel. It provides set of services that can be used by programs, insulating these programs from the underlying hardware. A kernel is responsible for managing computer memory, allocating resource of the computer, controlling access to the computer, maintaining file system and handling interrupts and errors.

5. What skills will you bring to our organization?
Well, I am familiar with Sun, Solaris and Cisco Hardware, TCP/IP, Jumpstart, VERITAS Volume Manager, C-shell, Perl Oracle 8i, My SQL, Solaris Production, Apache, Sun Server, UNIX and Linux.

6. What job specific tasks have you performed in your previous organization?
In my previous organization I used to monitor and tune system, develop and maintain the documents, library and procedural documents and install and configure the modem, routers, hubs and LAN terminal servers.

Well, these are some very important questions that are asked in interviews for this post and I am very certain that my article would surely help you to answer them with great confidence.

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