Statement two and three is correct.
Statement 1 is incorrect. A relative reference changes when a formula is copied to another cell while Absolute references remain constant. However, it is safe to say that an absolute address can be preceded by a $ sign before both the row and the column values. It is designated by the addition of a dollar sign either before the column reference, the row reference, or both. Statement C is also correct. A mixed reference is a combination of relative and absolute reference and the formula (= A1 + $B$2) is an example of a mixed cell reference.
Answer:
The answer is B. Digital subscriber line technology
Explanation:
Digital subscriber line or DSL technology is used to transmit digital data over telephone wires.
It makes file sharing possible which includes multimedia data (i.e. transfer of pictures and graphics), and also video and audio conferencing.
DSL uses a reliable medium that prevents packet loss and interruptions. It is also fast.
Answer:
B
Explanation:
Typically I check the physical layer to ensure that the nodes are plugged accordingly.
