(CIS 175 -Intro 2 Ntwrking) Week 3 Quiz

(CIS 175 -Intro 2 Ntwrking) Week 3 Quiz - W eek 3 Quiz 1 D...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Week 3 Quiz 1. Define and explain Microwaves. Microwaves are electromagnetic waves with frequencies between 1 and 300 GHz. They are used to send information back and forth from sender and receiver in sort of a ‘one on one’ conversation. They must use antennas within sight of each other, because they don’t penetrate obstacles well. Outgoing information is sent through a special antenna called a horn and received through another specially designed antenna called a dish. 2. Compare and contrast guided to unguided Media. Guided media carries/sends a signal that is guided through and contained within a solid cable. Unguided media contrasts by sending/carrying a signal without using anything physical or solid to guide and contain. Guided media uses connectors and cables, including twisted pair, coaxial and fiber-optic cables. Unguided media uses propagation to transport the electromagnetic waves. The propagation can be in 3 forms : ground, sky and line-of- sight. 3. Describe in depth Fiber-optic cable.
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/19/2012 for the course COMPUTER S 100 taught by Professor Brown during the Spring '11 term at Strayer.

Ask a homework question - tutors are online