What IP Address Is Used as a Loopback Address and Is

question 20

Multiple Choice

What IP address is used as a loopback address and is not a valid IP address that can be assigned to a network?

• A) 128 address
• B) 127 address
• C) 224 address
• D) 255 address

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Definitions:

Phosphodiesterase

An enzyme that plays a critical role in cellular signaling by breaking down phosphodiester bonds within cyclic nucleotides like cAMP and cGMP.

cAMP

A second messenger important in many biological processes, known formally as cyclic adenosine monophosphate.

Phosphorylated Protein

A protein that has undergone the addition of a phosphate group, which can affect the protein's function and activity.

Calmodulin

A calcium-binding protein; when bound, it alters the activity of certain enzymes or transport proteins.