What application layer protocol is used for the retrieval of email from a mail server?

Which consensus mechanism is used by Bitcoin, the first blockchain-based cryptocurrency?

What will be printed from the below code?

Boolean occupies how much space in a 32 bit system

Which type of routing algorithm considers factors such as link cost and bandwidth to find the best path for data packets?

Which of the following routing algorithms guarantees loop-free paths using feasibility condition?

In the context of a database, what is a transaction?

The best case time complexity of selection sort?

Which data structure follows the "first-in, first-out" (FIFO) principle?

What does PHP stand for?