Exam (elaborations)
NRS-1 Chapter One Questions and Answers
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Exam of 2 pages for the course NRS at NRS (NRS-1 Chapter One)
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NRS-1 Chapter OneThe original network that ultimately became the Internet was called - answerARPANET
NSFNET was the follow-on network, DARPA is an organization, and DoDnet
does not exist.
The primary organization behind the development of the original Internet was -
answerThe U.S. Department of Defense
Which of the following was not a primary design concern during the development
of the original Internet? - answerBandwidth
The network needed to support diverse systems in a reliable manner over diverse
media. There was not a great need for large amounts of bandwidth.
Which of the following was not a reason TCP was a superior transport protocol
to NCP? - answerSupport for applications such as email
NCP provided support for applications like email; it did not provide any of the
features in the other answers.
Which of the following OSI layers is not paired with the correct implementation? -
answerLayer 3-TCP
TCP is a Layer 4 protocol. The other answers are incorrect.
Part of the growth of the ARPANET was driven by the ability of anyone to create
and disseminate information about potential protocols and applications in a particular
kind of document. These documents are known as - answerRequests For Comments
ISPs connect to each other at well-defined network locations to exchange information.
These connection points are known as - answerIXPs
A company that has locations throughout the country can obtain service at each
location from a Tier 1, Tier 2, or Tier 3 provider. What is one reason a company
might choose to connect all locations to a Tier 1 provider despite the higher costs
involved? - answerA single provider could offer SLAs to each location.
A single provider can offer SLAs because the traffic would be contained entirely
within its own network; other providers can provide the services in the other
answers.
Which of the following services would likely be offered by a content provider but
not a service provider? - answerLive video streaming from sports events
Live streaming video for sports events would clearly fall into the content scope of
services. The other services are all commonly offered by all service providers.
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