TRANSPORT LAYER
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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80 and 443
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80 and 445
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67 and 68
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161 and 69
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Detailed explanation-1: -Port 80 and 443 are ports generally associated with “the Internet". Port 443/HTTPS is the HTTP protocol over TLS/SSL. Port 80/HTTP is the World Wide Web. Let’s face it, port 80/443 are generally a given for being open on any type of filtering device allowing traffic outbound on your network.
Detailed explanation-2: -Port 80 allows HTTP protocol means the information remains in plain text between the browser and the server, while Port 443 allows HTTPS protocol means all the information travels between the server and the browser remains encrypted.
Detailed explanation-3: -HTTP is unsecured while HTTPS is secured. HTTP sends data over port 80 while HTTPS uses port 443. HTTP operates at application layer, while HTTPS operates at transport layer. No SSL certificates are required for HTTP; with HTTPS, it is required that you have an SSL certificate and a CA signs it.