Integrity constraints are enforced by The database designer.
<h3>What are Integrity constraints?</h3>
An Integrity Constraints is known to be the protocols that a table's data columns is mandated to follow.
Note that they are used to hinder the types of information that can be put into a table and as such, Integrity constraints are enforced by The database designer.
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The above question has multiple choices as below
<span>A. Data links
B. The post office
C. Driving a car
D. A train
The answer is (B) The Post Office.
In layman’s terms, transport layer is similar to the post office functions of delivering parcels and letters at the agreed delivery deadlines. It also notices any dropped info and re-transmits it.
Just like the post office, the transport layer directs messages and information between specific end users. If by mistake you write a letter to the wrong person, the letter will be returned and the postal employee will stamp it as address unknown.
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<h2>Answer :</h2>
In case of Flash Sale, usually company uses Instant messages or SMS. As there are chances customer in most of the cases don’t have access to their emails due to internet unavailability. However SMS can be directed towards customers without the requirements of an internet. In case of SMS, there are companies available that can shoot out targeted SMS based on cities or even an entire country at a very minimal price. Company can provided them there contacts as well as they have a list of numbers from different sources to which they can send instant messages.
The limitation of computer are:
- No self-intelligence
- No feeling
- No learning power
- Dependency
