DIG6206 Lecture 8

Inserting silent guard times between symbols is an efficient solution to minimize inter-symbol interference.

• True

• False

The process of copying part of a symbol and inserting it between symbols is called ____.

• Guard Interval

• Cyclic Prefix

• Interleaving

• Symbol Padding

A wireless system is always better with higher data rates and longer transmission distances.

• True

• False

A longer wavelength enhances a signal's ability to travel greater distances.

• True

• False

In optical fibers, light remains confined within the core because the refractive index of the core is _______ than that of the cladding.

• Lower

• Equal

• Higher

• Unchanged

In an optical fiber, the phenomenon responsible for confining light within the core is called _______.

• Refraction

• Diffraction

• Dispersion

• Total Internal Reflection

What is the frequency range of the Ku-band in satellite communications?

• 4 - 8 Ghz

• 8 - 12 Ghz

• 12 - 18 Ghz

The _______ band provides more capacity for satellite communications but has less coverage area compared to the _______ band.

• Ku, C

• C, Ku

• Ka, C

• Ku, L