Finding and fixing a problem
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.
Answer:
Suzanne needs a blog
Explanation:
Because she wants to use a digital media tool that acts as a journal and facilitates discussion, Suzanne would need a blog for this.
A blog is a platform where people can meet and have discussions on the internet sometimes in a diary-like format.
Suzanne would need software like WordPress for her blog.
Answer:
Explanation:
Let's do this in python
(a) Between 5 and 60 and divisible by 5
for i in range(5, 60/5):
print(5*i)
(b) Less than 200 and divisible and 2 and 7
for i in range(1, int(200/14) + 1):
print(14*i)
(c)Sum of multiple of 8 that are between 100 and 500
sum_result = 0
for i in range(100, 500):
if i % 8 == 0:
sum_result += i
print(sum_result)
(d)sum of all odd numbers between 20 and 10
sum_odd = 0
for i in range(10, 20):
if i % 2 == 1:
sum_odd += i
print(sum_odd)
Answer:
Explanation:
Let's do this in Python, first we need to convert the number into string in order to break it into a list of character, then we can replace the kth character with d. Finally we join all characters together, convert it to integer then output it
def setKthDigit(n, k, d):
n_string = str(n)
d_char = str(d)
n_char = [c for c in n_string]
n_char[k] = d_char
new_n_string = ''.join(n_char)
return int(new_n_string)
