Question
In the context of web development, which of the
following best describes the primary difference between HTTP and HTTPS?Solution
The primary difference between HTTP and HTTPS is that HTTPS uses port 443, which is associated with SSL/TLS encryption, while HTTP uses port 80, which transmits data in plaintext. HTTPS (HyperText Transfer Protocol Secure) provides a secure connection by encrypting the data transmitted between the client and server using SSL/TLS protocols. This encryption ensures confidentiality, data integrity, and authentication, making it more secure than HTTP. Why Other Options are Incorrect: B) HTTPS is faster than HTTP: This is incorrect; HTTPS is generally slower than HTTP due to the encryption overhead, although the performance difference is minimal. C) HTTP supports stateful connections while HTTPS does not: Both HTTP and HTTPS can support stateless communication, not stateful. D) HTTPS uses JSON for data transmission while HTTP uses XML: Both protocols can transmit any data format (JSON, XML, HTML, etc.). E) HTTPS requires an additional DNS server: HTTPS does not require an additional DNS server; it uses SSL/TLS certificates to establish secure connections.
In a 5-stage pipeline (Fetch, Decode, Execute, Memory, Write-back), how many instructions can be in various stages of processing at the same time?
A transformer has a primary coil with 300 turns and a secondary coil with 150 turns. If the primary voltage is 240V, calculate the secondary voltage.
Which of the following is a common problem that synchronization mechanisms address in multi-threaded or multi-process environments?
What happens when a program accesses data that is not currently in physical memory (RAM) due to virtual memory management?
Which of the following is not a valid keyword in C++ language?
XML is designed to ____ and ____ data)
What is the main purpose of a digital signature in public key cryptography?
The best case time complexity of selection sort?
What is the space complexity of an algorithm?
Which functions are declared inside a class have to be defined separately outside the class?