Your company has recently deployed a web application in the cloud. To secure communications, you have to ensure the authenticity and integrity of the data being transferred between the client and the server. Which of the following actions is MOST critical to meet these requirements?
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Renewing all existing certificates regardless of their expiration dates.
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Installing a digital certificate issued by a trusted certificate authority on the server.
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Generating a new public-private key pair for the server every 30 days.
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Using self-signed certificates for SSL/TLS encryption.
Installing a digital certificate from a trusted certificate authority on the server is the most critical step for securing communications between a client and a server. This allows for the use of SSL/TLS, which ensures the authenticity and integrity of the data. Self-signed certificates may also encrypt the communication, but they do not provide the same level of trust as they might not be accepted by users' browsers without creating security exceptions. Renewing existing certificates is important, but only applicable if the certificates are near expiration or compromised. Generating a new public-private key pair is a part of the process but without certificate issuance, it doesn't ensure secure communications.
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What is a digital certificate and why is it important?
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