Which field of an /etc/passwd entry defines the program launched when the user logs in?

• A.The second field
• B.The fourth field
• C.The sixth field
• D.The seventh field

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In which file are system and user account passwords stored?

• A./etc/secure
• B./etc/login.defs
• C./etc/shadow
• D./etc/passwd

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A script called backup.sh must run on a Linux server to perform a backup operation. The script should continue running even if the terminal session is closed. Which command will achieve this?

• A../backup.sh
• B.sudo ./backup.sh
• C../backup.sh > /dev/null
• D.nohup ./backup.sh &

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Which file should be edited so that a filesystem is automatically mounted each time the Linux system boots?

• A./etc/mtab
• B./etc/mounts
• C./etc/fstab
• D./proc/mounts

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In a multi-tier cloud application, what is the most appropriate way to separate the environments following best practices?

• A.Create separate virtual networks for production, staging, and testing environments.
• B.Use a single virtual machine with containerized services for all environments to simplify deployment.
• C.Use tagged resources within the same virtual network to identify different environments.
• D.Host staging and testing in separate subnets but keep production on the same subnet for performance.

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