Answer:
B. Digital Signature
Explanation:
Digital signature is an electronic signatures. They are used to authenticate the identity of a person sending the message. It ensures that the original content of the document or message remains unchanged. Digital signatures cannot be imitated. There are three types of digital signature certificates:
<em>Sign Digital Signature Certificate </em>
<em>Encrypt Digital Signature Certificate </em>
<em>Sign & Encrypt Digital Signature Certificate</em>
Answer:
Option b Internet platforms
Explanation:
Internet is related to network infrastructure and also hardware and software platforms. Without network infrastructure that enable connectivity and communication between computers, the internet platform won't exist. Besides, the network also enable communication and interaction between users and application. And we need specific hardware and software to construct a functional internet service.
Answer:
the answer is D.All of the above
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