2.7 Compare and contrast Internet connection types, network types, and their features

Question 1

Non-Terrestrial communication. High-cost relative to terrestrial networking. Slower than other broadband technologies and are easily affected by weather and atmospheric conditions.

Answer 1

Satellite

Question 2

High speed data communication. Higher installation cost than copper– Equipment is more costly– More difficult to repair– Communicate over long distance. Best for homes and businesses.

Answer 2

Fiber

Question 3

Broadband– Transmission across multiple frequencies– Different traffic types. High-speed networking– 50 Mbits/s through 1,000+ Mbit/s are common. Multiple services– Data, voice, video.

Answer 3

Cable

Question 4

Uses Telphone Lines. Download speed is faster than the upload speed
(asymmetric)– 200 Mbit/s downstream / 20 Mbit/s upstream are common– ~10,000 foot limitation from the central office (CO)– Faster speeds may be possible if closer to the CO.

Answer 4

DSL

Question 5

• Mobile devices
  –“Cell” phones
• Separate land into “cells”
  –Antenna covers a cell with certain frequencies
• Tethering
  –Turn your phone into a wireless router
• Mobile hotspot
  –Standalone devices
  –Use your phone for other things

Answer 5

Cellular

Question 6

Terrestrial internet access using wireless. Connect rural or remote locations
–Internet access for everyone
* Many different deployment technologies
–Meshed 802.11
–5G home internet
–Proprietary wireless
* Need an outdoor antenna
–Speeds can range from ~ 10 to 1,000 megabits per second

Answer 6

Wireless Internet Service Provider (WISP).

Question 7

• A building or group of buildings. A small or confined space.
  –High-speed connectivity
• Ethernet and 802.11 wireless.

Answer 7

Local Area Network (LAN)

Question 8

Generally connects LANs across a distance
–And generally much slower than the LAN
* Many different technologies
–Point-to-point serial, MPLS, etc.
–Terrestrial and non-terrestrial.
Geographic limitations removed.

Answer 8

Wide Area Network (WAN)

Question 9

–Your own private network
–Bluetooth, IR, NFC
* Automobile
–Audio output
–Integrate with phone
* Mobile phone - Wireless headset
* Health
–Workout telemetry, daily report.

Answer 9

Personal area network (PAN)

Question 10

A network in your city or university.
–Larger than a LAN, often smaller than a WAN. Common to see government ownership–They “own” the right-of-way.

Answer 10

Metropolitan Area Network (MAN)

Question 11

–Looks and feels like a local storage device
–Block-level access
–Very efficient reading and writing
* Requires a lot of bandwidth
–May use an isolated network and high-speed network technologies.

Answer 11

Storage Area Network (SAN)

Question 12

–802.11 technologies
* Mobility
–Within a building
–In a limited geographical area
* Expand coverage with additional access points
–Downtown area
–Large campus.

Answer 12

Wireless Local Area Network (WLAN)