This is called a key attribute!
There are different types of key attributes!
Primary key is the key that is actually chosen, for example a social security number.
There is also a unique key, say our finger prints! they also uniquely identify humans, but usually we prefer to use social security number when we list people (a unique key could be a primary key if we chose so)
We could also identify people by their social security number and a name, but this is unnecessary, as social security number already gives a full identification. Such a reduntant key is called super key.
C. Environmental Service Systems
Answer:
The right answer is option A
Explanation:
To upgrade a network communication to accommodate for specific network needs, what is required is to select and install the network interface with the highest speed to connect to the local network.
Network communications are what we use to connect to the internet. There are different network providers and the provided networks do not have the same network speed due to different reasons. A network interface is what is used to connect our computer to the network provider. It is only logical to get the best network interface card in that region and connect to the fastest speed available.
Answer:
1. C
5.b
Explanation:
1. Is c because it is in the short cut key
5. Is B because it is the last choice
