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.
A device that uses a trick of light to display text that someone can read in real-time directly in front of a camera without obscuring the camera lens. This allows, for example, a news reporter to read breaking news as it comes in while looking directly into the camera.
Answer: Application Software
Explanation: A word processor is referred as the application software that is for the creation and editing of a document. It is also used for getting the hard copy of the document by printing it .The data entered in it can be modified according to our need by giving certain commands from the keyboard. It has several features like storing of data, displaying of data,printing it etc.
A. Letter of reference from people who have worked with you in the past.
Square shape have the code circle (100, steps=4) draw.
A. square
<u>Explanation:</u>
This circle function code is done in Python. The circle function is available in turtle module. In python turtle module is used for graphics. We have to import turtle module in IDLE and call the function Turtle() to open the turtle graphics screen.
Then we can call the function circle() which takes 100 as radius and step size as parameter into the function and resulting in drawing a square of 100 radius. The square is drawn tilted due to the movement of the turtle(the arrow head).
