Answer: Physical location
Explanation:
If we place records from, different tables in adjacent physical location, it would increases efficiency of a databases as, database consolidates records from previously store in separate files into a common file. Databases are fast and efficient when they are dealing with large data. When all the information is stored in multiple physical location it is also known as distributed database, as physical location helps to provide the physical and logical path and also protect from default locations in the database.
Answer:
Below picture should give you an indication. On different PC cases, the position of the connectors can be different, so you have to look at the shape.
Answer:
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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.
