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Fudgin [204]
4 years ago
12

Your company wants to use an IoT device but wants to make sure it does not interfere with other RF devices that use the 2.4 GHz

RF band. The company also wants the device to be at least 50 meters away from the base station. What type of device should the company purchase?
a. Zigbee
b. Bluetooth
c. Z-Wave
d. NFC
Computers and Technology
1 answer:
jonny [76]4 years ago
6 0

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.

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class add {  

void main(String array[]){  

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int add[] = new int [3];

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Taking an other example let initialization and declare array of string and print the greater value.For this create a variable with integer data type \

class Test{  

void main(String[] array){  

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test[0]; new int [2];

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for initialization of array lets take variable a with data type integer

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           for(int j=0; j<test[i].length; j++)  

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               test[i][j] = a++;  

this process repeat until loops got false

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           for(int j=0; j<test[i].length; j++)  

         cout<<test[i][j]<<"+"<<"";  

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6 0
4 years ago
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Answer: a. intrapersonal and short-term goals

Explanation:

Intrapersonal goals are those that we set for ourselves in our minds to accomplish. The students that are finishing their homework after school most probably set that goal in their minds and so meeting it would mean meeting their intrapersonal goals.

Homework is not a long term project but rather a short one that is usually meant to be completed within days. Completing it is therefore a short term goal.

The students who finish their homework after school are therefore accomplishing both their intrapersonal and short-term goals.

6 0
4 years ago
Read 2 more answers
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