A system administrator issues the apt-get upgrade command on a Linux operating system. What is the purpose of this command?

Question:
A system administrator issues the apt-get upgrade command on a Linux operating system. What is the purpose of this command?

• Every application installed will update itself to the latest version.
• Operating system updates are downloaded and will be installed.
• The remote repository of applications and dependencies will be updated to the latest version.
• A specific application named upgrade will be installed.

Explanation: When the apt-get upgrade command is isued in a Linux terminal, all installed applications will attempt to upgrade to the latest version available.

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