Find the odd one out from the following

What is job scheduling in an operating system?

What application layer protocol is responsible for translating domain names to IP addresses?

Which is not in relation to the database.

In dynamic programming, what does "optimal substructure" mean?

Which component in the MVC architecture communicates directly with the database?

Which famous sorting algorithm uses the divide-and-conquer strategy?

In a synchronous sequential circuit, what is the purpose of the clock signal?

Fork() command is used to create a new process. State true or false.

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

Which of the following is NOT a common application of IoT?