suresh Sure! Here is an SEO-friendly HTML answer for the interview question:
What is the difference between blocking and non-blocking I/O in programming?
Blocking and non-blocking I/O are two different approaches to handling input/output operations in programming.
Blocking I/O: In blocking I/O, when a program makes a request for I/O operation, the program is blocked until the operation is complete. This means that the program cannot continue executing other tasks until the I/O operation finishes. This can lead to inefficiencies in the program, especially in scenarios where multiple I/O operations are needed.
Non-blocking I/O: Non-blocking I/O, on the other hand, allows a program to continue executing other tasks while waiting for the I/O operation to complete. When a program initiates a non-blocking I/O operation, it does not have to wait for the operation to finish and can perform other tasks in the meantime. This can result in improved performance and responsiveness of the program.
Overall, the key difference between blocking and non-blocking I/O lies in how they handle waiting for I/O operations to complete, with non-blocking I/O offering more flexibility and efficiency in program execution.
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