Answer:
The correct answer to the following question will be "PRAM needs to be reset".
Explanation:
<u>PRAM:</u>
- It is commonly known as "Parameter Random Access Memory". It is a memory that is used to store the settings of the system of a Mac OS. These settings comprise of monitor settings, speaking settings, WI-FI settings, etc.
- So, according to the given case when the WI-FI icon shows that the system is connected to the internet but he is not able to browse the internet. In this case, he needs to reset the PRAM to browse the internet.
So that the above is the right answer.
Answer:
Downcasting
Explanation:
Downcasting is a way of determining whether a given object is of a particular subclass type. In object-oriented programming downcasting is used to cast an object to a subtype. Even though sometimes it throws a compile-time error in Java, downcasting can be done on languages like Java, C++, C#. The opposite of downcasting is upcasting, which is simply the casting of an object to supertype or parent type.
Answer: Laser Beams
Explanation:
The laser beam is one of the type of technology that helps in amplifying the light by using the laser principle Stimulated emission in the laser. The word "LASER" is stand for the Light amplification by stimulated emission of radiation.
The laser is one of the device that emitted the coherent light in the form of beam rays that is propagate only in one direction. The following are the laser beam technology are as follows:
- Bar code reader
- Laser surface modification
- Information processing
- Laser range
Therefore, Laser beam is the correct answer.
