Answer:
The correct answer is Option A (Referential integrity)
Explanation:
When a relational database table is in first normal form, that means it has no repeating fields or groups of fields, and hence all rows have the same columns, while if a relational database table is in second normal form, it implies that every non-key field is functionally dependent on the primary key. If can be in the third normal form if no non-key field is functionally dependent on any other non-key field.
A relational database on its own is a universal approved database model whose data is stored in tables divided into records and fields that serve as an information unit that organizes data points for easy access.
In the relational database, foreign keys are being checked to reference the primary key and enforce referential integrity so as to ensure that the foreign key must have a matching primary key. It means the reference from a row in one table to another table must be valid. Referential integrity concerns the concept of a foreign key normally enforced by the database management system.
Answer:
The answer is not native. I just got in wrong.
Explanation:
Edge 2021
The statements that describe features of an ipv4 routing table on a router include:
- Directly connected interfaces will have two route source codes in the routing table.
- If a default static route is configured in the router, an entry will be included in the routing table with source code.
It should be noted that the IPv4 route table is important for listing entries that are in the routing table.
The routing table of every router is unique and can be stored in the read access memory (RAM) of the device.
Read related link on:
brainly.com/question/24958077
Answer: The standard web component layouts and templates makes the web page seem like many others but could also make it easier for users to interact and use the web page without much trouble. The approaches do limit creativity and originality in web page design but its better to have an easy to use web page that can still look good rather than something that is confusing for the users.
Explanation:
Answer:
b. TRUE
Explanation:
Whenever they are passed as parameters to a function, the IO classes istream and ostream must be passed using a pass-by-reference parameter passing scheme.
This is because , assuming a pass by value semantics would require us to copy the value of the istream or ostream object which would be meaningless. In fact these objects don't even have a copy constructor at all. So such objects are always passed by reference.
