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Linux Quiz 2: Users, NFS, and System Files - CSCI 4417 - Prof. Robert A. Nielsen, Quizzes of Computer Science

East Tennessee State University (ETSU)Computer Science
Prof. Robert A. Nielsen

A quiz for the csci 4417 linux course, focusing on users, nfs, and system files. It includes 12 questions worth a total of 12 points. Questions cover topics such as user files, nfs configuration, and system files. Students are required to answer 3 questions from each section and one additional question.

Typology: Quizzes

Pre 2010

Uploaded on 08/18/2009

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koofers-user-ajr 🇺🇸

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CSCI 4417, Linux Quiz 2: Users, NFS, and System Files
Steven Jenkins and Qing Yuan
February 17, 2004
Overview
12 points total in 3 sections: you must answer at 3 questions from each section, and 1 additional questions for a total
of 10.
1 Users
1. (1 point) What file contains username and user-id mapping?
2. (1 point) What file contains the information on which users are in which groups?
3. (1 point) Where is information about the location of a user’s home directory stored?
4. (1 point) What is wrong with storing encrypted passwords in the file mentioned in question 1?
2 NFS
5. (1 point) What session-layer protocol is NFS built on?
6. (1 point) What file lists the filesystems that the server will make available via NFS?
7. (1 point) What command must be run to start up an NFS server?
8. (1 point) What file lists the filesystems that a client will mount at boot time via NFS?
3 System Files
9. (1 point) Briefly explain what is contained in three of the following files:
1
pf2

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CSCI 4417, Linux Quiz 2: Users, NFS, and System Files

Steven Jenkins and Qing Yuan

February 17, 2004

Overview 12 points total in 3 sections: you must answer at 3 questions from each section, and 1 additional questions for a total of 10.

1 Users

  1. (1 point) What file contains username and user-id mapping?
  2. (1 point) What file contains the information on which users are in which groups?
  3. (1 point) Where is information about the location of a user’s home directory stored?
  4. (1 point) What is wrong with storing encrypted passwords in the file mentioned in question 1?

2 NFS

  1. (1 point) What session-layer protocol is NFS built on?
  2. (1 point) What file lists the filesystems that the server will make available via NFS?
  3. (1 point) What command must be run to start up an NFS server?
  4. (1 point) What file lists the filesystems that a client will mount at boot time via NFS?

3 System Files

  1. (1 point) Briefly explain what is contained in three of the following files: 1

/etc/hosts /etc/ethers /etc/services /etc/shadow /etc/networks

  1. (1 point) If you would like to change from using file-based contents to using a network service like NIS or DNS for your hostname resolution, what file should you change?
  2. (1 point) What is the biggest problem with using NIS in a university environment?
  3. (1 point) Briefly describe what is likely to be misconfigured in the following scenario: You try to ping a host (for this example, named www ), and you get an error message saying ping: unknown host www but when you do an nslookup www, you successfully get the IP address.

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