Answer:
Infrared
Explanation:
the connection which requires an unobstructed "line of sight" between transmitter and receiver is called Infrared connection.
Infrared is the device which is used in T. V remotes.
Infrared is also used in computer in the device like cordless keyboard, mouses and infra touch screen.
Use for loop and question inside it
Answer:
Explanation:
Explicit Dependencies
<u>It states that the classes and methods should explicitly require , via constructor or method parameters all the collaborating objects that are required for the function to work properly .</u>
Classes with the implicit dependencies cost very high for the maintenance than the explicit dependencies .
Even , the implicit dependencies are difficult to test as they are tightly coupled to their collaborators .
Answer:
A. One
Explanation:
Symmetric key cryptography makes use of one key. The same key is used for both encryption and decryption. This is different from asymmetric cryptography where separate keys are used for the two operations. Some examples of symmetric cryptography include:
- Advanced Encryption Standard (AES)
- Data Encryption Standard (DES)
- Triple Data Encryption Standard (3DES)
