Answer:
the designer choose because it has many basic and advance feature and it is Synchronous digital hierarchy (SDH) and synchronous optical network (SONET)
refer to a group of fiber-optic transmission rates that can transport digital signals
with different capacities. And it feature is Almost all new fiber-transmission systems now being installed in public networks
use SDH or SONET. They are expected to dominate transmission for decades to
come, just as their predecessor PDH has dominated transmission for more than
20 years (and still does in terms of total systems installed). Bit rates in long-haul
systems are expected to rise to 40 Gbps soon after the year 2000, at the same
time as systems of 155 Mbps and below penetrate more deeply into access
networks.
2 they choose Because of these problems, the big cable networks use hybrid fiber-coax networks. The use of fiber increases the upstream bandwidth and reduces noise, making it easier for upstream data to reach its destination. But upgrading to hybrid fiber-coax is hugely expensive.
A static IP.
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Answer:This is basically the issue of permutations and calculations. It revolves around the best depiction of accuracy.
Explanation: It hitherto explains the nitty-gritty of our day-to-day activities in connection with our social interactions and securities...
Explanation:
Both perform almost the same function of storing data, performing numerical calculations, formating cells, and to generate reports.
However, when dealing with data that is short term (requiring less updating) Microsoft Excel is recommended as it provides easy spreadsheet functions. Access on the other hand is a more complex application for data analysis involving constantly changing data values that are long term based. Access allows for efficient data analysis using complex tools such as import module, automated queries etc.
Answer:
C. Z-wave
Explanation:
The Z wave is a wireless communications protocol used primarily for automation. The Z- wave operates using a mesh network and then uses low energy radio waves to communicate from appliance to appliance.
The Z wave operates on a lower frequency than most other popular RF devices, thus making interference nonexistent.
The range of the Z-wave is 100m. Hence, it can give a perfect coverage from the base station to the company.
<em>Option A is wrong</em> . This is because the Zigbee is insecure and has a low coverage range (10m-20m). This means that there are possibilities of interference and also improper coverage beyond 50 m.
<em>Option B is wrong.</em> This is because Bluetooth devices are insecure, can loose connections under certain conditions. They have a range of 10m which is a lot lower than 50m benchmark.
<em>Option D is wrong</em>. NFC stands for Near Field Communication. This means its range is practically about 4cm and it cannot be used for long ranges as the company intends.
