The variables must begin with a letter of the alphabet, a dollar sign or a underscore. After the first character you may add numbers as well. All special characters besides the dollar sign and underscore and not allowed in variables.
The empty input occurs when the user presses the enter key without typing a value for an input operation.
The three options that describe the typographic hierarchy are given below:
- The importance of information is shown through the text.
- The presentation of the text in terms of structure.
- The placement of the text defines its flow and hierarchy.
Thus, the correct options are A, B, and C.
<h3>What is Typographic hierarchy?</h3>
Typographic hierarchy may be characterized as an approach that utilizes typography: the size, font, and layout of distinct text components to produce a hierarchical division that can authenticate users where to look for specific information.
The purpose of using this methodology is to focus on the main points of the article accordingly. It increases the sense of understanding of the readers with focus.
Therefore, it is well described above.
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Answer: Local Area Network (LAN)
Explanation:
A Local Area Network (LAN) is a computer network that interconnects computers within a limited physical area such as a residence, school, laboratory, university campus or office building.
An example of LAN network is "Phone, Computer and TV connected to a single network (such as a Home Network) via Cables, Wifi, Bluetooth or Hotspot". When the devices are interconnected or connected to a LAN, it becomes accessible between each other.
A simplest example of a LAN Device is a <em>Home Router.</em>
