Answer:
We learned that an ideal multiple access protocol has FOUR desirable
characteristics, describe them.
Explanation:
1.- Very experienced technology and easy to implement.
2.- Rigid resource management and unfit for variable traffic flows.
3.- Requires antenna duplexer for duplex transmission.
<u>Duplex</u> <em>is a term used in telecommunication to define a system that is capable of maintaining two-way communication, sending and receiving messages simultaneously.
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4.- Normally FDMA is combined with multiplexing FDD.
<u>FDMA</u> (acronym in English for Frequency Division Multiple Access) <em>is a multiplexing technique used in multiple communication protocols, both digital and analog, mainly radio frequency, and among them in mobile phones of GSM networks.
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<u>FDD</u> (Frequency Division Duplexing in English) <em>designates a duplex method in the environment of wireless telecommunications and over certain wired networks.</em>
<span>A switch is a central network device that connects network nodes such as workstations and servers in a physical Star topology</span>
Answer:
An online company wants to conduct real-time sentiment analysis about its products from its social media channels using SQL. The solution which has lowest cost and operational burden is as follow:
B. Configure the input stream using Amazon Kinesis Data Streams. Use Amazon Kinesis Data Analytics to write SQL queries against the stream.
Explanation:
- The option A is not correct as this solution doesn't have lowest cost and operational burden as set up a streaming data ingestion application on Amazon EC2 and connect it to a Hadoop cluster for data processing will have more cost and operational burden.
- The lowest cost and operational burden solution is that we configure input stream using Amazon Kinesis Data Streams. We can use Amazon Kinesis Data Analytics to write SQL queries against the stream.
- The option c and d are also more pricey in terms of cost and operational burden as compared to Amazon Kinesis Data stream and analytics.
some advantages of video conferencing include:
• you can talk no matter how far you are from the person
•you won’t have to go somewhere to talk
•there is no cost if you need to travel far
