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Quiz: Interpret Linux File System Permissions

Review the following information and use it to answer the quiz questions.

The system has four users that are assigned to the following groups:

  • The consultant1 user is a member of the consultant1 and database1 groups.

  • The operator1 user is a member of the operator1 and database1 groups.

  • The contractor1 user is a member of the contractor1 and contractor3 groups.

  • The operator2 user is a member of the operator2 and contractor3 groups.

The . special directory contains four files with the following permissions:

drwxrwxr-x.   operator1     database1     .
-rw-rw-r--.   consultant1   consultant1   app1.log
-rw-r--rw-.   consultant1   database1     app2.log
-rw-rw-r--.   operator1     database1     db1.conf
-rw-r-----.   operator1     database1     db2.conf

Choose the correct answers to the following questions:

  1. 1.

    Which regular file does the operator1 user own and all users can read?

    A

    app1.log

    B

    app2.log

    C

    db1.conf

    D

    db2.conf

  2. 2.

    Which file can the contractor1 user modify?

    A

    app1.log

    B

    app2.log

    C

    db1.conf

    D

    db2.conf

  3. 3.

    Which file can the operator2 user not read?

    A

    app1.log

    B

    app2.log

    C

    db1.conf

    D

    db2.conf

  4. 4.

    Which file does the consultant1 group own?

    A

    app1.log

    B

    app2.log

    C

    db1.conf

    D

    db2.conf

  5. 5.

    Which files can the operator1 user delete?

    A

    Only db1.conf

    B

    Only db2.conf

    C

    All the files in the directory

    D

    None of the files

  6. 6.

    Which files can the operator2 user delete?

    A

    Only app1.log

    B

    Only app2.log

    C

    Both app1.log and app2.log

    D

    None of the files

Revision: rh124-9.0-398f302