100-160 Question 49
Single answerA company wants to ensure sensitive customer data is protected during transfers between their web application and users, while also ensuring the data cannot be intercepted or altered by attackers. Which protocol would provide this level of encryption for data in transit?
- A
HTTPS
- B
FTP
- C
SMTP
- D
Telnet
Show answer and explanation
Correct answer: A
Explanation
HTTPS is the correct answer because it is a secure protocol designed to encrypt data in transit between a client and a server using SSL/TLS. This ensures that sensitive information, such as login credentials or personal data, cannot be intercepted or altered by attackers during transmission. Other protocols like FTP, SMTP, and Telnet lack native encryption or are used for entirely different purposes.
- A. Correct.
HTTPS (Hypertext Transfer Protocol Secure) encrypts data in transit using SSL/TLS, ensuring both the confidentiality and integrity of the data being transferred.
- B. Incorrect.
FTP (File Transfer Protocol) does not natively encrypt data in transit, making it vulnerable to interception unless used with additional layers like FTPS or SFTP.
- C. Incorrect.
SMTP (Simple Mail Transfer Protocol) is primarily used for sending emails and does not inherently encrypt data in transit unless combined with STARTTLS or other encryption mechanisms.
- D. Incorrect.
Telnet transmits data in plain text, making it highly insecure for transferring sensitive information.