Linux experts asked several Linux questions to help. Thank you.

1: Select C. Disk space to simulate hard disk space, joke. The controversy may come from option A, which is actually the difference between linux swap partition and windows virtual memory. Linux swap partition not only stores pages that are not commonly used in memory, but also acts as virtual memory. It can also store temporary files used by linux runtime. Once closed, it will be emptied, and it will not leave fragments on the disk like windows. This is the purity of Linux.

2. Choose B. The encryption dog should be a small tool in the authentication category. It stores the key used to analyze ciphertext, and saves the corresponding public key or private key according to different encryption algorithms.