The correct crontab entry to execute the script chklog three times per month between 3 p.m. and
5 p.m.:

• A.0 15,16,17 1 * * chklog
• B.* 3,4,5 1 * * chklog
• C.3 15,16,17 * * * chklog
• D.3 3,4,5 1 * * chklog
• E.* 15,16,17 1 * * chklog

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Which mechanism does ssh use to interact with the SSH agent?

• A.Connecting to port 2222 which is used by the system-wide SSH agent.
• B.Using the fixed socket .ssh-agent/ipc.
• C.Evaluating environment variables such as SSH_AUTH_SOCK.
• D.Starting ssh-agent as a child process for each ssh invocation.
• E.Creating an alias replacing ssh with calls to ssh-agent.

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The X11 configuration file xorg.conf is grouped into sections. How is the content of the section SectionName associated with that section?

• A.It is placed after the row [SectionName].
• B.It is placed in curly brackets as in Section SectionName { ... }.
• C.It is placed after an initial unindented Section "SectionName" and must be indented by exactly one tab character.
• D.It is placed between a line containing Section "SectionName" and a line containing EndSection.
• E.It is placed between the tags <Section name="SectionName"> and </Section>

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Which of the following statements is true if the UID of a regular user is identical to the GID of a group?

• A.The user is the only member of the group, even if the group configuration contains other members.
• B.UID have precedence over GIDs, therefore the user is available while the group doesn't.
• C.The user as well as the group are not available to avoid ambiguity due to the ID conflict.
• D.GIDs have precedence over UIDs, therefore the group is available while the user isn't.
• E.UIDs and GIDs are independent of each other, therefore the user as well as the group are still available.

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Which of the following lines is an example of a correct setting for the DISPLAY environment variable?

• A.hostname:displaynumber
• B.hostname/displayname
• C.hostname/displaynumber
• D.hostname
• E.hostname:displayname

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