I think it is the model ET-2. Not quite sure.
It would be the army and then people of nyc
Answer: Acoustics
Explanation:
Acoustics is simply refered to as a branch in physics that studies sound and its wave.
Acoustics studies mechanical waves in liquid, solid state or gaseous state. Topics such as infrasound, vibration and ultrasound are studied. Someone who works in the acoustics field is referred to as an acoustician.
Watchdog Program
This program becomes the number one security mechanism for file access.
Pros:
- A benefit of using watchdog program is that you have a centralized mechanism for controlling access to a file
- You are assured of having secure access to your file
Cons:
- It becomes a bottleneck.
- If this program has a security hole, there are no other guaranteed backup mechanisms for file protection.
COPS
COPS is a collection of a dozen programs that attempt to tackle problems in UNIX security. It checks for a number things like poor passwords, device permissions, files run in /etc/rc*, existence of root SUID, and many other things.
Pros:
- This program provides methods of checking for common procedural errors.
- COPS collect outputs and either mails the information to the admin or logs it in.
Cons:
- It could be modified by an intruder or even take advantage of its features.
- It is meant to tighten the security, not a tool to be used to find security flaws. It does not directly correct errors found.
