S&P Global SDE Interview Questions and Answers

Basic GD with normal topics, only communication skills and the way you speak matters.

Q1. Difference Between HTTP and HTTPS
Ans. 
HTTP is unsecured protocol while HTTPS is secured protocol using SSL/TLS encryption.
• HTTP stands for Hypertext Transfer Protocol, while HTTPS stands for Hypertext Transfer Protocol Secure.

• HTTP operates on port 80, while HTTPS operates on port 443.

• HTTPS encrypts the data transferred between the client and the server using SSL/TLS, while HTTP does not provide encryption.

• HTTPS provides authentication of the website's ident...read more
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Q2. How DNS works and how a website functions
Ans. 
DNS translates domain names to IP addresses, allowing users to access websites.
• DNS stands for Domain Name System

• When a user enters a domain name in a browser, DNS translates it to an IP address to locate the website's server

• DNS servers store records like A (IPv4 address), AAAA (IPv6 address), CNAME (canonical name), MX (mail exchange), etc.

• Websites function by hosting files on a server, which are accessed by users thro
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