An Information System is when key components such as hardware, software, data, and process are combined for collection, processing, and distribution of data. All of these scenarios mentioned on the choices above are considered transactions in an information system. There is an exchange of information that fully satisfies the request of a user and describes what transactions in information systems are. They are good examples of users entering information whether, physically or electronically, as data into computers. This data is then processed, and the database changes adjusted with some being made permanent.
Answer:
Follows are the matching to this question:

Explanation:
While time-consuming or prone to errors mechanical adjustments to both the referential, databases could be configured with four measures to engine violations. The restricted action causes the insert, update, and removes to only be denied. Set Null to NULL sets the invalid external key, whereas Set Default to a specific core consideration specified in SQL sets a default foreign key. Its Cascade operation spreads the main changes in external keys.
There are a lot of rules in computing. The above can be done with authentication exemption.
<h3>What is Authentication exemptions?</h3>
This is a method that helps one to be able to specify a particular group of computers.
Conclusively, This can be done via their Active Directory computer account name or the use of their IP address. Tis does not apply to existing connection security rules.
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Netiquette actually means "Internet etiquette." Just like etiquette is a code of polite behavior in society, netiquette is a code of good behavior on the Internet. This includes several aspects of the Internet, such as email, sending memos, or basic communication regarding office task.
Now we should note that communication is not just a pivotal part of any organization, it is an integral part of any organization, without communication, an organization will suffer greatly. Communication is said to be effective when the receiver understands the message conveyed just as the sender wanted to, having said that Netiquette improves efficiency and productivity in the workplace because it creates an avenue for efficient communication which includes clear instructions, fast message delivery, and proper explanation, and this bridges the gap between managers and employees even when they are miles apart. A clear message about a task makes it easier to carry out the said task, thereby resulting in high productivity in the workplace.