Answer:
Explanation:
We can use a key field as a unique field, we can make reference with other tables, each table only can have one key field, and some programs like access can make this field automatically, if we want to have a correct key field we must follow these steps:
- never be empty
- the value never must change
- The value must be unique
Answer:
The answer is Technician B
Explanation:
How you drive your car to how you maintain your tires will always tell a lot about your car’s tires. In the long run, bad tire maintenance habits and reckless driving style will cause tire wear. As a result, a tread wear indicator will appear. Most quality tires come with tread wear indicator bars that are molded evenly and look like small, thin strips of rubber placed between the grooves of the tire tread. These bars will gradually become visibly flushed when the tire is worn out beyond its required limit. This will, therefore, mean one thing; replace your tires before they wear out completely.
Answer:
A.1.
Explanation:
CCS(Centum Call Seconds) is a unit to measure the network traffic in the telecommunication circuit network.
1 Traffic unit = 1 Erlang.
The relation between Erlang and CCS(Centum Call Seconds) is:-
36 CCS = 1 Erlang.
Hence the answer to this question is 1 Erlang.
Answer:
Please see the attached file for the complete answer.
Explanation: