In the ever-evolving field of information technology, the Physical Layer of computer networks has emerged as a crucial topic for students preparing for competitive examinations. As the first layer of the OSI model, the Physical Layer plays a fundamental role in the transmission of raw data bits over a communication medium. Its importance has gained attention among exam authorities, making it a frequently tested concept in exams like BCA, B.Tech, SSC, and other technical recruitment tests.
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Question : Which packet switching approach is connection-oriented and uses a fixed path during communication?
Question : Which of the following is a major disadvantage of circuit switching?
Question : Which switching technique uses a store-and-forward mechanism where the entire message must be received before forwarding?
Question : In which switching technique does each packet travel independently and may follow different routes?
Question : Which switching technique establishes a dedicated communication path before data transmission?
Question : Which switching mode may forward corrupted or collided frames due to lack of error detection?
Question : Which of the following is a major advantage of store-and-forward switching?
Question : In cut-through switching, the switch starts forwarding the frame after reading:
Question : Which switching mode has the lowest latency but does not perform error checking?
Question : Which switching mode checks the entire frame and performs error detection before forwarding?
Question : Which switching mode provides maximum reliability but higher latency due to full frame checking?
Question : Which of the following is a key characteristic of packet switching?
Question : Which switching technique sends the entire message as a single unit and stores it at each intermediate node?
Question : In which layer of the OSI model does a network switch primarily operate?
Question : Which of the following best explains the primary function of a network switch?