Which among the following is an essential feature of spectrum mobility in FTP communication?(a) Storage of packets(b) Authentication(c) Encryption(d) Data recoveryI had been asked this question in a job interview.I need to ask this question from Next Generation Wireless Network in section Next Generation Wireless Network of Cognitive Radio

Which among the following is an essential feature of spectrum mobility

1.	Which among the following is an essential feature of spectrum mobility in FTP communication?(a) Storage of packets(b) Authentication(c) Encryption(d) Data recoveryI had been asked this question in a job interview.I need to ask this question from Next Generation Wireless Network in section Next Generation Wireless Network of Cognitive Radio
Answer» Right option is (a) STORAGE of PACKETS To explain I would say: Connection management in spectrum mobility enforces protocols with respect to the application for MAINTAINING COMMUNICATION. FTP requires protocols to store packets that are transmitted during handoff. But real-time applications do not REQUIRE storage of packets as the information is obsolete for the corresponding application.

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