Broadband Tech

In this assignment, we were to watch Introduction to Broadband Technologies Video by Eli the Computer Guy. The tutorial discussed various types of broadband technologies available to connect homes and businesses to the Internet. Topic of this tutorial includes Basic Broadband Concepts, T1, Carrier Grade Ethernet, Point to Point Wireless, Wireless, DSL and Cable and Satellite.


Eli the Computer Guy's Understanding Broadband

Questions

  1. In a broadband context, what is the difference between synchronous and asynchronous communications?

    -Asynchronous download speed is not the same as the upload speed.
    -Synchronous: Downloads and uploads at the same speed.


  2. What is latency?

    Latency is the time it takes for a command to be recognized by the web server and then sent back to you.


  3. From Eli's point of view, what is the difference between business and residential service?

    Business services have better guarantees and service than residential services.


  4. Explain the difference between a static and a dynamic IP address.

    Static IP addresses never changes while dynamic routinely changes.


  5. Why might an organization want a static rather than an IP address?

    If an organization is running internal services outside of the network, a static IP will ensure that a network connection can always be accessed. Since dynamic IP addresses change, network connection will not be accessible to the outside.


  6. Why would an ISP block a particular port?

    An ISP would block a particular port like Port 25, which is for email, to reduce spam.


  7. What is an SLA?

    A Service Level Agreement (SLA) is a contractual agreement that the services payed for will be the services received.


  8. When would you use a T1 line?

    You would use a T1 line for running websites and businesses.


  9. What are two advantages of a T1 line?

    -T1 Internet services has coverage in more places where other providers don’t
    -A SLA is provided for the services


  10. What is the primary disadvantage of a T1 line?

    . T1 is used for both Voice and Data transfer. When voice is added to part of the service, it reduces the speeds of the Internet speed


  11. What is the primary advantage of carrier class Ethernet?

    SLA guarantees a speed and you get a range of internet speeds that are synchronous.


  12. . In wireless networking, what does 'unlimited Internet' mean?

    The term is a limited connection in terms of speeds and rate of data that get throttled once over limit.


  13. In an old building, what could be a problem source concerning DSL service?

    Old phone lines in the building could reduce the quality of Internet service


  14. With a cable connection, what type of problem could be associated with a trunk line?

    Trunk lines bring in several homes or communities to a single point to return to the central office, which creates a bottleneck if many users are on the Internet at the same time


  15. From a business perspective, what is a potential weakness of Cable?

    The weakness is the shared trunk line would lower connection speeds when everyone on that line is on and no SLA (guarantee).


  16. What is FIOS?

    Fiber Optic Services can be used residential and is much faster than traditional wireless, cable, or DSL.


  17. What is the reason that you probably don't want a satellite connection?

    Satellite connections have high latency mainly due to the distance and atmospheric interferences and high cost.


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