Question

Which among the following is an important assumption while operating with the Policy Core Information Model?

(a) No storage is necessary

(b) Cooperative storage

(c) Centralized storage

(d) Distributed storage

I had been asked this question in examination.

I would like to ask this question from Next Generation Wireless Network topic in division Next Generation Wireless Network of Cognitive Radio

Answer 1

The correct answer is:

(d) Distributed storage

Explanation:

The Policy Core Information Model (PCIM) is part of a framework used in cognitive radio and next-generation wireless networks to manage policies related to spectrum usage, spectrum sensing, and spectrum sharing. The PCIM is designed to facilitate the exchange of policy information across different network entities in a distributed manner.

In a cognitive radio network, different devices (such as base stations, access points, or user devices) may need to make decisions based on policies and information shared across the network. To support this, the PCIM relies on distributed storage of policy information rather than centralized or cooperative storage. This allows for flexibility, scalability, and robustness, as it ensures that all devices in the network can independently access and update the policy information without relying on a single central entity.

Thus, the assumption of distributed storage is important when operating with the PCIM, as it aligns with the decentralized nature of cognitive radio networks.