Within the past six months, a company has experienced a series of attacks directed at various collaboration tools. Additionally, sensitive information was compromised during a recent security breach of a remote access session from an unsecure site. As a result, the company is requiring all collaboration tools to comply with the following: ✑ Secure messaging between internal users using digital signatures ✑ Secure sites for video-conferencing sessions ✑ Presence information for all office employees ✑ Restriction of certain types of messages to be allowed into the network. Which of the following applications must be configured to meet the new requirements? (Choose two.) 

Answer options:

A. Remote desktop
B. VoIP
C. Remote assistance
D. Email
E. Instant messaging
F. Social media websites

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