Question

Where does black processing occur in software communication architecture?

(a) Black processing occurs between antenna and RF channel

(b) Black processing occurs between antenna and RF conversion

(c) Black processing occurs between RF conversion and INFOSEC module

(d) Black processing occurs between antenna and INFOSEC module

I had been asked this question in examination.

The origin of the question is Building CRA on SDR Architecture in portion Cognitive Radio Architecture of Cognitive Radio

Answer 1

Right choice is (d) Black processing occurs between antenna and INFOSEC module

Best explanation: Military radios assign the term ‘red’ for secret information. The term ‘black’ is used to refer to protected or encrypted information during transmission. Black processing generally takes place between the antenna and INFOSEC module, particularly the decryption process.