Answer:
d. public myClass( ) {. . .}
Explanation:
A constructor is a special method that is called when an object of a class is created. It is also used to initialize the instance variables of the given class. A class may have one or more constructors provided that these constructors have different signatures. A class that does not have a constructor explicitly defined has a default parameterless constructor.
Having said these about a constructor, a few other things are worth to be noted by a constructor.
i. In Java, a constructor has the same name as the name of its class.
For example, in the given class <em>myClass</em>, the constructor(s) should also have the name <em>myClass</em>.
ii. A constructor does not have a return value. It is therefore wrong to write a constructor like this:
<em>public void myClass(){...}</em>
This makes option a incorrect.
iii. When a constructor with parameters is defined, the default parameterless constructor is overridden. This might break the code if some other parts of the program depend on this constructor. So it is advisable to always explicitly write the default parameterless constructor.
This makes option d a correct option.
Other options b and c may also be correct but there is no additional information in the question to help establish or justify that.
The correct option is D. tracert; This sequence emulates is utilities for the command sequence.
<h3>Explain the term command sequence?</h3>
We can complete operations that need numerous phases thanks to sequence, which refers to the order in which commands are processed by a computer.
- Sequence is indeed a basic algorithm in programming: a series of sequentially carried out logical steps.
- Network engineers create and implement network setups, address performance issues, monitor networks, and set up firewalls and other security measures.
- By delivering Internet Control Message Protocol (ICMP) is echo packet to a target, the TRACERT diagnostic tool ascertains the path to the location.
Thus, utilities is emulated by this sequence is TRACERT .
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Answer: Storage
Explanation:
Storage means means saving data in computer memory. Memory refers to the location which is meant for short-term data, while storage is the part of the computer system that allows an individual to store and also access data on long-term basis.
It should be noted that typically, storage usually comes in form of a hard drive or a solid-state drive.
Reasons why the height of a VHF radio antenna is important is because VHF radios work by the line of sight principle.
Line of sight its a line from observers eye to a distant point.its a line between two points specifically the straight path between a transmitting antenna (as for radio or television signals) and receiving antenna when unobstructed by the horizon.
Here the examples of scanning devices :
- Drum Scanner.
- Handheld Scanner.
- Flatbed Scanner.
- Optical Character Recognition.
- Magnetic Ink Character Recognition.
- Image Scanner.
<h3>What is meant by scanning ?</h3>
- A text is scanned quickly in order to find a specific piece of information. In daily life, scanning is regularly used for tasks like looking up a word in a dictionary or finding a friend's name in your phone's contacts list.
- Scanners may basically be divided into three categories. These consist of network scanning, port scanning, and vulnerability scanning.
- There are three different types of scanners: portable scanners, flatbed scanners, and drum scanners. While flatbed scanners are commonly used in offices and classrooms, drum scanners are mainly used in the publishing industry to print high-quality pictures.
- Three processes make up the basic scanning process: scan, register, and detail.
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