What is a security policy?

A.
a set of rules that controls traffic from a specified source to a specified destination using a
specified service

B.
a collection of one or more network segments sharing identical security requirements

C.
a method of providing a secure connection across a network

D.
a tool to protect against DoS attacks

Explanation:
A security policy is a set of statements that controls traffic from a specified source to a
specified destination using a specified service. If a packet arrives that matches those
specifications, the SRX Series device performs the action specified in the policy.