WorksheetsProject Spectrum
Total questions: 20
Worksheet time: 15mins
Find the minimum size of the antenna required to transmit a signal of frequency of 12MHz
625 cm
12.5 m
25 m
625 m
Optical fibers have bandwidth limitations because of
Insertion loss
Dispersion
Receiver limitations
Transmitter limitations
What are the 3 bands of frequencies of a 5G network?
LowBand 5G, Mid Band 5G, Millimeter Wave
WideBand 5G, Medium Band 5G, High Band
LowBand 5G, Mid Band 5G, Meter Wave
LowBand 5G, Mid Band 5G, Centimeter Wave
What is the frequency range of Mid Band 5G?
1 - 6 GHz
2.5 - 7.5 MHz
2.5 - 7.5 GHz
1 - 6 MHz
Which one is not a controversy related to 5G
5G has a negative impact on birds even sometimes resulting in death
Weakens the immune system, makes the body more vulnerable to COVID 19
5G causes fruits in trees to grow bad quicker due to radiation
None of these
How does Li-Fi technology work for wireless communication?
By transmitting data through infrared light
By transmitting data through visible light
By transmitting data through radio waves
By transmitting data through sound waves
What is the name of the Google's Project that aims to provide high-speed internet access via ?
Satellite
Li-Fi
Project Loon
Project Taara
For what distance can Project Taara transmit data
Up to 5 km apart
Up to 20 km apart
Up to 40 km apart
Up to 50 km apart
What concept was figured out to be a reliable solution to send data between balloons flying on the stratospheric winds?
Mesh networking
Free Space Optical Communications (FSOC)
Project S.K.Y
SPACEX
Who coined the term "Li-Fi" and in what year?
Harald Haas, 2011
John O'Sullivan, 1999
Ted Rappaport, 2002
Vint Cerf, 1994
What is the primary objective of Google's Project Loon?
To provide internet access via low Earth orbit satellites
To provide internet access via High Altitude Platform Station (HAPS)
To provide internet access via balloons for rural areas
To provide internet access via UAV
What is the major concern with the widespread adoption of IoT devices?
Limited battery life
High cost
Cybersecurity
Limited storage capacity
What is the name of the technology used for wireless communication between devices in a short range?
NFC
Wi-Fi
GSM
Ethernet
What is the primary function of Hamming code?
Error correction
Programming
Data compression
Data encryption
According to physicist Russel Seitz, how much does the internet weigh?
2 milligrams
65996 grams
5669 milligrams
2 pounds
In a mobile communication system, which of the following is a key parameter that affects the quality of the signal received by a mobile device?
Power output of the base station
Distance between the mobile device and the base station
Frequency band of the signal
All of them
Which of the following is a key advantage of using software-defined radio (SDR) in a wireless communication system?
Lower power consumption
Increased flexibility in modulation and demodulation
Improved performance in multipath fading environments
Reduced cost of deployment
Increasing the length of an optical fiber link can result in
Signal distortion
An increase in total signal attenuation
Reduced system bandwidth
All of them
What was the original purpose of the Internet?
Social networking
Online shopping
File sharing
Military communication
Which of the following statements is true regarding Coca-Cola's use of IoT technology?
Coca-Cola uses IoT to monitor customer's drinking habits
Coca-Cola uses IoT to track inventory and monitor vending machine performance
Coca-Cola uses IoT to remotely shut down vending machines during peak hours
Coca-Cola does not currently use IoT technology
