Technology Questions

- Virtual domain is the domain of the client on which they can run their applications without having to install the server or hardware. 

- The software need not to be installed physically on the server as it can be done using the local repositories and maintaining the domain locally. 

- Using the virtual domain the server storage space is utilized efficiently and the data can be made more secure before publishing it online. 

- Virtual domains are used to represent the personal Internet web address domain name and can be made with your personal one. 

- Virtual domain provides more security in terms of using your own personalized domain and allows the access to the resources that are on web.

Pareto analysis is otherwise known as the 80/20 rule. It stipulates that 80%of problems will arise from 20% of causes – that few factors can create big problems.

It is the ability of an object to behave differently on different situations for the same message.

Joins are used to combine data of one or more tables. Joins should be used when there is abundant data. Joins can be LEFT, RIGHT, OUTER, INNER or even SELF JOIN. The purpose is to bind data from multiple tables without any receptivity

Web portal is a business gateway, It organizes business operations.

Ex: Online shopping portals, Job portals etc...

For inserting, deleting, and locating elements in a Map, the HashMap offers the best alternative. If, however, you need to traverse the keys in a sorted order, then TreeMap is your better alternative. Depending upon the size of your collection, it may be faster to add elements to a HashMap, then convert the map to a TreeMap for sorted key traversal.

Transmission is a physical movement of information and concern issues like bit polarity, synchronization, clock etc.

Communication means the meaning full exchange of information between two communication media

Oracle database comprises of three kinds of files:
- Datafiles
- Redo log files
- Control files