AMU 2026 — Computer PYQ

To identify the odd term, we need to analyze the classification of transmission media used in data communication. Transmission media are broadly divided into two main categories:

1. Guided Media (Wired / Bounded Media):

   • These media use physical cables, wires, or conductors to channel and direct data signals along a specific pathway.

   • Examples from the options include:

     • Optical fiber: Transmits data as light pulses through glass or plastic strands.

     • Co-axial cable: Transmits data as electrical signals through a solid copper core surrounded by shielding.

     • Twisted pair cable: Transmits data as electrical signals through pairs of insulated copper wires twisted together.

2. Unguided Media (Wireless / Unbounded Media):

   • These media do not use any physical cables or conductors. Instead, they transmit electromagnetic waves through fluid mediums like air or vacuum.

   • Microwave transmission falls completely under this category, as it uses high-frequency radio waves to transfer data wirelessly through space between line-of-sight antennas.

Conclusion:

Since options (a), (b), and (c) are all physical, wired forms of transmission (Guided Media), and option (d) is a wireless form of transmission (Unguided Media), microwave is the odd term out