A Company Needs a Secure Way to Provide Building Blueprints

Multiple Choice

A company needs a secure way to provide building blueprints to an engineering partner frequently. The Chief Information Officer (CIO) states that a secure protocol must be used for transfer, and the partner needs to initiate a secure connection to the company's router. Which of the following would BEST meet the requirements? (Choose two.)

A) Site-to-site VPN
B) Client-to-site VPN
C) RDP
D) SSH
E) SFTP
F) Captive portal