Information Technology
Class - VIII
Chapter - 1
Worksheets
Worksheet 1 Multiple Choice Questions (MCQs).
1.GPRS stands for :
a. Global Packet Radio Service b. Generation packet radio Service
c. General Packet of Radio Service d. General purpose radio Service
2. What is the range of coverage of WiMax ?
a. 30 meters b. 50 meters
C. 100 meter d. 50 Kms
3. The GPS receiving equipment is typically known as:
A. GPS receiver b. Hot Spot
C. Hub d. satellite
4. What is a Hot-Spot?
a. A type of satellite used in GPS b. GPS Receiver
c. A zone that has high speed wireless internet access d. WiFi Device
5. What is a computer in a Lan called?
a. Workstation b. Server
C. Node d. device
Worksheet 2 Write (T) for True and (F) for False against the statements.
1. Bluetooth, by its nature, is not designed for heavy transmission and thus would not be a suitable technology for repalceing LAN and WAN. FALSE
2. Wifi stand for Wireless Frigidty. TRUE
3. A Hot-Sopt is the name of a type of tea. FALSE
4. WiFI and WiMax are used for high-speed wireless access technology. TRUE
5. WiFi has a range more than WiMax. FALSE
6. A Wide Area Network (WAN) is the same as the internet. TRUE
7. Each computer in a LAN is Called a node. TRUE
8.All computer connected in a LAN have an Ethernet card. TRUE
Worksheet 3 Answer in a sentence.
1.What is ‘bluetooth’?
Answer: Bluetooth technology uses short-range radio links to connect and replace the necessity of cables.
2.What is Infrared technology?
Answer: In infrared communication for transmission and reception of signals, devices must lie close to each other (usually called a line-of-sight distance) to be able to work
3. Which technology helps to set up wireless MANs?
ANSWER: Wi-Fi Technology helps to set up wireless MANs.
4.Write the full form of GPS and GPRS.
ANSWER: GPS - Global Positioning System
GPRS - General packet Radiio Service
5. Write the Full forms of WiFi and WiMax.
ANSWER: WIFI - Wireless Fidelity
WiMAX- Worldwide Interoperability for Microwave Access
Worksheet 4 Answer the following.
6.What is the difference between Bluetooth and WiFi?
ANSWER: Bluetooth technology uses short-range radio links to connect and replace the necessity of cables.
Wifi, stands is the term for a high-speed wirless access technology. It uses long range radio waves, hence the distance covered is more.
7. What is the difference between WiFi and WiMax technology?
ANSWER: Wif, is the term for a high-speed wirless access technology. It uses long range radio waves, hence the distance covered is more.
WiMAX operates on the same general principal as WiFi but will cover a radius of approximately 50kms with wireless access
8.What is Cloud Computing?
ANSWER: Cloud Computing is Internet computing, where “Cloud” is the term used for the Internet. It is an Internet-based computing, whereby shared resources, software, and information areprovided to computers and other devices on demand.
9.What are LANs, MANs and WANs?
ANSWER: A Local Area Network (LAN) is a computer network that interconnects computers within a limited area such as a residence, school, laboratory, university campus or office building.
A Metropolitan Area Network (MAN) is a computer network that interconnects users with computer resources in a geographic region of the size of a metropolitan area .
A Wide Area Network (WAN) is a telecommunications network that extends over a large geographical area for the primary purpose of computer networking .
10.What is a modem?
ANSWER: A modem stand for "modulator-demodulator" – is a hardware device that converts data into a format suitable for a transmission medium so that it can be transmitted from one computer to another.