Transmission Media

What is the frequency range for AM broadcast?

• 550 Hz to 1605 kHz.

• 550 kHz to 1605 kHz.

• 550 kHz to 1605 MHz.

• 550 MHz to 1605 MHz.

Explain why Fiber Optic cable is not affected by Electromagnetic Interference (EMI).

Which one of the following 'Network Media' is not susceptible to Electromagnetic Interference (EMI) and features high data transmission rate over long distances?

• Coaxial Cable.

• Fiber-Optic Cable.

• Shielded Twisted Pair Cable.

• Unshielded Twisted Pair Cable.

The type of cable that converts information into beams of light before transmission base on the principle of 'Total Internal Reflection' is the

• coaxial cable.

• fiber optic cable.

• shielded twisted pair.

• unshielded twisted pair.

Which one of the following is NOT the key variable of an Antenna?

• Length.

• Bandwidth.

• Polarization.

• Beam Width.

The type of cable to be used when cost is the main factor to be considered during setting Up of a network is

• coaxial cable.

• fiber optic cable.

• shielded twisted pair.

• unshielded twisted pair.

The gain of an antenna is 28 dBd. Calculate the gain of this antenna in dBi.

• 25.86 dBi.

• 28 dBi.

• 30.14 dBi.

• 32 dBi.

The maximum distance between the antennae at each end of the radio link is governed by

• Maximum Available Transmit Power

• Receiver Sensitivity

• Availability of an Unobstructed Path

• Maximum Available Gain of the Antennae

• System Losses

Which of the following Frequency Band will you select to implement 'Point-to-Point' radio transmission?

• High Frequency (HF).

• Low Frequency (LF).

• Medium Frquency (MF).

• Very High Frequency (VHF).

Which Antenna has a greater gain? ‘Antenna X’ with a Gain of 22.86 dBi or ‘Antenna Y’ with a Gain of 25 dBd.