What is the purpose of TSIG in DNS?

• A.To encrypt DNS queries
• B.To map a domain name to an IP address
• C.To provide information about DNS servers
• D.To sign DNS messages for secure communication

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Which command is used to run a new shell for a user changing the SELinux context?
(Specify ONLY the command without any path or parameters.)
Solution: newrole
Determine whether the given solution is correct?

• A.Correct
• B.Incorrect

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Which of the following resources of a shell and its child processes can be controlled by the Bash build- in command ulimit?
(Choose THREE correct answers.)

• A.The maximum number of newly created files
• B.The maximum number of user processes
• C.The maximum number of environment variables
• D.The maximum size of written files
• E.The maximum number of open file descriptors

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What is the purpose of Linux capabilities, as introduced to divide the traditional all-or-nothing root privilege model?

• A.They replace the need for the setuid bit entirely on all binaries.
• B.They allow specific, granular privileges (such as binding to low-numbered ports) to be granted to a process without granting full root access.
• C.They are used only within containerized environments.
• D.They control network bandwidth allocation per process.

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Which of the following commands disables the automatic password expiry for the user usera?

• A.chage --maxdays -1 usera
• B.chage --lastday 0 usera
• C.chage --maxdays 99 usera
• D.chage --maxdays none usera
• E.chage --lastday none usera

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