Final answer:
The described duties like handling telephone exchange, room reservations, and customer queries pertain to the front desk operations in the hospitality industry, falling under Business studies.
Step-by-step explanation:
The subject of the question is centered on hotel front desk operations, which comes under the broader category of hospitality management within Business studies.
The roles mentioned in the question, such as handling room reservations, redirecting calls, managing queries about room types and facilities, and setting up wake-up calls, are all typical responsibilities of a hotel front desk clerk or receptionist.
These professionals ensure efficient communication and customer service within a hotel, and their work is essential for maintaining guest satisfaction and operational success.