Not entirely true. Protocols are a set of rules and instructions for how a system ought to operate, not just network packets.
Answer: second option: Operating system...
An operating system is the most important software that runs on a computer. It manages the computer's memory and processes, as well as all of its software and hardware. It also allows you to communicate with the computer without knowing how to speak the computer's language.
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Lightweight AP infrastructures has limited mobility and is difficult to manage.
What is mobility?
Mobility refers to a user's capacity to access telecommunication services at any UPT terminal using a personal identity, as well as the network's ability to supply those services in accordance with the user's service profile. Personal mobility refers to the network's ability to locate the terminal linked with the user in order to address, route, and charge the user for calls. The term "access" refers to both the concept of starting and terminating services. Personal mobility does not include the user's management of the service profile. The UPT number governs the personal mobility features of personal communications.
To learn more about mobility
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<span>Fixed Price Contracts, Cost Reimbursable Contracts, and <span>Time and Material Contracts are the three basic types. Not to mention </span></span>Sale contracts, Employment contracts, business contracts, and leases.