The primary function of an operating system is to manage hardware and software resources. This encompasses various critical tasks, including:
In contrast, tasks like compiling source code, designing user interfaces, and executing database queries are generally specific functions of application programs or development environments, not the primary responsibility of an operating system.
Consider the following statements:
Which ONE of the following is CORRECT?
Consider the routing protocols given in List I and the names given in List II:

For matching of items in List I with those in List II, which ONE of the following options is CORRECT?
Identify the ONE CORRECT matching between the OSI layers and their corresponding functionalities as shown.

Rearrange the following parts to form a meaningful and grammatically correct sentence:
P. a healthy diet and regular exercise
Q. are important habits
R. that help maintain good physical and mental health
S. especially in today's busy world