Conditions for Enabling High Availability

BE.

The correct answers are B (same NTP configuration) and E (same number of interfaces).

Explanation:

High availability (HA) is a critical feature of Cisco Firepower Threat Defense (FTD) devices, which provides redundancy and ensures that traffic continues to flow even if one device fails. For successful HA between two Cisco FTD devices, the following conditions must be met:

B. Same NTP Configuration: Network Time Protocol (NTP) is used to synchronize the time between devices in a network. For HA to work, the two FTD devices must be synchronized to the same NTP server and configured with the same time zone.

E. Same Number of Interfaces: Both devices must have the same number of physical and virtual interfaces, and these interfaces must be configured with the same IP addresses, VLAN IDs, and interface names. This ensures that both devices can handle the same amount of traffic and fail over correctly.

The other options are not relevant to configuring high availability between two Cisco FTD devices:

A. Same Flash Memory Size: Flash memory size is not a factor in configuring HA between two Cisco FTD devices.

C. Same DHCP/PPoE Configuration: Dynamic Host Configuration Protocol (DHCP) and Point-to-Point Protocol over Ethernet (PPoE) are used to assign IP addresses to devices on a network. However, these configurations are not relevant to setting up HA.

D. Same Host Name: Hostnames are used to identify devices on a network. While it's important to have unique hostnames, they don't affect HA configuration.