Question

which of the following is a portion of the virus code thats unique to a particular computer virus? a virus signature a rootkit a cookie a botnet i dont know yet

Explanation:

A virus signature is defined as a unique portion of a virus's code used to identify it. A rootkit is malware that hides system modifications, a cookie is a web data storage file, and a botnet is a network of infected devices—none of these match the description of a unique virus code segment.

Answer:

A virus signature