A database is used to organize a large collection of data, hence the name database. It is literally a base that would contain a chunk of data that a person or an organization will need to pull out later when they need it. Databases are usually used by companies or organizations
Answer:
I am not sure on this one I am guessing it is True
Explanation:
Answer:
The answer is "Option b"
Explanation:
In the given code three-class C1, C2, and C3 are declared, in which C2 and C3 extend the class C1. In the next line, C2 and C3 object are created, that is c2 and c3. and in the last line c2 class object holds two-class C2, C1, and one object c3 value, this code will give runtime error because it can't cast object from sibling class, and wrong choices can be defined as follows:
- In option a, It is not correct because it can't cast c3 object into c2 object.
- In option c, It is not correct because it performs multiple casting in nested forms.
- In option d, It is wrong because the statement is not correct.
Answer:
Cellular telephone network
Explanation:
Cellular telephone network utilizes the concept of the such towers that allows the use of transmitters of low power and make use of the same channel for the radio frequency.
Cellular network is the network for communication in which the end link of the network is wireless. This type type of network is distributed and makes use of the radio waves over the land areas of the network referred to as the 'cells'. These cells are served individually by the fixed base station that enables the transmission of calls over a wide range through wireless links to a fixed receiver
