Network Chapter 1 Review Questions:

R3. Why are standards important for protocols?

According to the assigned text book, standards are important so that "everyone agree on what each and every protocol does, so that people can create systems and products that interoperate". Essentially, this means that standards are important so different developers, vendors, technologies can write code that adhere to some form of unity (standard). This helps all the pieces come together and effectively operate together with each other. For example, let’s look at IEEE standard 802.11 for networking. This is the standard for wifi, and comes in different sub-standards such as 802.11G, 802.11N and so forth. With this standard, a manufacturer can make a wifi card on your laptop, while a different manufacturer makes the wifi radio on your wireless router. As long as the manufacturers are using the same standard, your laptop is able to connect to you home wifi network without any complicated or advance set up. Standards make it possible for majority of IT devices interoperate.

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R4. List six access technologies. Classify each one as home access, enterprise access, or wide-area wireless access.

The textbook has many access technologies listed. Below are six of the listed with the correct classification category:

DSL (Digital Subscriber Line) - Home Access - One of the first method of broadband access, mostly replace with Fiber and Cable technologies.

FTTH (Fiber to the home) - Home Access - While slow for America to start implementing this home access technology. It is now widespread as Verizon FIOS has been implementing this method.

Ethernet - Enterprise Access - 802.3 standard for how Layer 1 and Layer 2 talk to the other layers in the networking model. Includes the technology of CSMA/CD to access the wire for communication, which allows multiple nodes to communicate without excessive collisions. Although this is classified as an enterprise access...