Home » CompTIA » SY0-501 v.2 » Which of the following implements a stream cipher?
Which of the following implements a stream cipher?
A. File-level encryption
B. IKEv2 exchange
C. SFTP data transfer
D. S/MIME encryption
Correct Answer: D
Explanation/Reference:
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C is correct. SFTP utilizes the SSH. There are various ciphers the SSH server can use to perform encryption and decryption functions. RC4 is among one of them, and it is a stream cipher.
Reference: https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/system-edit-ssh-ciphers.html
The answers are completely wrong and no mentioned answer is stream cipher.