You are not able to ping an interface on an SRX Series Firewall.

For an SRX firewall interface to respond to management traffic such as ICMP pings:

Theinterface must be assigned to a security zone(Option A). If an interface is not part of any zone, it is placed into the null zone, which drops all traffic.

Additionally, the zone must be configured to allow management traffic types ashost-inbound-traffic(Option D). For ICMP, the protocol must be explicitly allowed under host-inbound-traffic for that zone.

Other options:

Security policies (Option B) control traffic traversing the firewall, not traffic destined to the SRX device itself.

Assigning the interface to the null zone (Option C) prevents any communication, including management.

Correct Actions:Assign the interface to a zone and configure ICMP under host-inbound-traffic.