NETWORK LAYER
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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true
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false
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Either A or B
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None of the above
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Detailed explanation-1: -CoAP does not provide any security. Explanation: The Internet of Things cannot spread as long as it can be exploited by hackers willy-nilly. CoAP does not just pay lip service to security, it actually provides strong security.
Detailed explanation-2: -Is MQTT secure? MQTT communication uses SSL protocol to protect sensitive data transmitted by IoT devices. You can implement identity, authentication, and authorization between clients and the broker using SSL certificates and/or passwords.
Detailed explanation-3: -CoAP is used to move the data, which is collected by a sensor node, to the other networking devices. The CoAP uses two sublayers called the Request/Response Layer and Messaging Layer. CoAP can handle four kinds of messages: Confirmation (CON), Non-Confirmation (NON), Acknowledgement (ACK), and Reset.
Detailed explanation-4: -CoAP makes use of two message types, requests and responses, using a simple, binary, base header format. The base header may be followed by options in an optimized Type-Length-Value format. CoAP is by default bound to UDP and optionally to DTLS, providing a high level of communications security.