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CORK INSTITUTE OF TECHNOLOGY
INSTITIÚID TEICNEOLAÍOCHTA CHORCAÍ
Autumn Examinations 2008/
Module Title: Systems Administration 1
Module Code: COMP 7020
School: Maths and Computing
Programme Title: Bachelor of Science in Computing - Award Higher Certificate in Science in Computing in Information Technology Support – Year 2
Programme Code: KCOMP_7_Y KITSU_6_Y
External Examiner(s): Mr. James Greenslade Internal Examiner(s): Mr. Gerard McSweeney
Instructions: Answer 4 questions All questions are worth equal marks
Duration: 2 Hours Sitting: Autumn 2009
Requirements for this examination: None
Note to Candidates: received the correct examination paper. Please check the Programme Title and the Module Title to ensure that you have If in doubt please contact an Invigilator.
(a) Write down ten system administration tasks. ( 10 Marks ) (b) What is the purpose of a UNIX shell? ( 2 Marks ) (c) Write down two examples of UNIX shells ( 4 Marks ) (d) What is a Linux distribution? Write down an example. ( 2 Marks ) (e) Name two Linux GUIs. ( 4 Marks ) (f) In a Linux environment, where might you expect to find users’ home directories? ( 1 Mark ) (g) What would you expect to find in the /bin directory in a Linux environment? ( 2 Marks )
2. (a) What is the purpose of the /etc/passwd file? ( 2 Marks ) (b) What is the purpose of the /etc/shadow file? ( 2 Marks ) (c) What is a getty program and when does it run? ( 4 Marks ) (d) What is a dictionary attack? ( 2 Marks ) (e) How would a user reduce the risk of a dictionary attack? ( 3 Marks ) (f) Without using a GUI, how could you check group membership? ( 2 Marks ) (g) Using octal notation, set the following permissions to the file fileZ: user: read + execute group:others: write + executeread only ( 5 Marks )
(h) An administrator has created three new Linux users kate, bill and jack. The administrator wants to:
- Enable bill and kate run a program called compilerFile
- Enable jack and kate run a program called browserFile. Explain how this could be achieved. ( 5 Marks )
(a) Describe, with the aid of a diagram, the UNIX block addressing scheme. ( 7 Marks ) (b) Explain how the UNIX block addressing scheme caters for both large and small files. ( 2 Marks ) (c) Give an example of a partitioning tool. ( 2 Marks ) (d) What is meant by a swap partition? ( 2 Marks ) (e) What is meant by mounting a device? ( 2 Marks ) (f) How would you un-mount a device. ( 4 Marks ) (g) What is the standard Linux file system? ( 2 Marks ) (h) Name two windows file systems. ( 4 Marks )
