Which two services must remain as on-premises equipment when a hybrid email solution is deployed? (Choose two)

Which two services must remain as on-premises equipment when a hybrid email solution is deployed? (Choose two)
A . DDoS
B . antispam
C . antivirus
D . encryption
E . DLP

Answer: DE

Explanation:

Cisco Hybrid Email Security is a unique service offering that combines a cloud-based email security deployment with an appliance-based email security deployment (on premises) to provide maximum choice and control for your organization. The cloud-based infrastructure is typically used for inbound email cleansing, while the on-premises appliances provide granular control C protecting

sensitive information with data loss prevention (DLP) and encryption technologies.

Reference: https://www.cisco.com/c/dam/en/us/td/docs/security/ces/overview_guide/Cisco_Cloud_Hybrid_Email_Security_Overview_Guide.pdf