The correct answer for the question that is being presented above is this one: "D) click to add." To define an additional field in Datasheet view, tap or click the<span> click to add </span>column heading.
Here are the following choice:
A) insert field
B) blank field
C) new field
D) click to add
Answer:
The answer is "14".
Explanation:
Let the IP address 
When it borrowed 4 bits
If the borrowed bits are left out then:
The Number of useable host addresses:
Answer:d)Use online databases to update and backup the data.
Explanation: Data backup is the creation of copy of the data to be stored in the secondary memory.This data is utilized when the data is lost or deleted from original positional and thus gets restored . Database are used for the updating the backed-up data on online mode.
Other options are incorrect because it does not creates copies for the offices members to take home, no data storage is created in following organization and does not store data in external disk.Thus, the correct option is option(d).
The Pareto Principle, commonly referred to as the 80/20 rule, states that 80% of the effect comes from 20% of causes. Or, in terms of work and time management, 20% of your efforts will account for 80% of your results.
