TestOut Linux Pro 2025 – 400 Free Practice Questions to Pass the Exam

The 'scp' command in Linux stands for "secure copy," and its primary function is to securely transfer files between hosts over a network using the SSH (Secure Shell) protocol. This command ensures the confidentiality and integrity of the data being transmitted by encrypting the file transfer process, making it a reliable choice for transferring sensitive information.

When a user invokes the 'scp' command, they specify the source file and the destination—this can include specifying a remote host by using a username and hostname or IP address. The use of SSH for the transfer means that not only is the file itself encrypted, but the credentials used for authentication are also protected.

In contrast, other options like compressing files, sharing files over a network without security, or archiving files into a compressed format pertain to different functions that do not involve the secure transfer of files specifically over SSH. For instance, tools like 'tar' or 'gzip' would be more suitable for file compression and archiving tasks, while file sharing may employ protocols such as NFS or SMB which don't necessarily provide the added security of SSH.