MOTHER TERESA SR. SEC. CO-ED SCHOOL. CLASS VIII (Comp Sc.) CHAPTER-1 : ABOUT NETWORKING

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1 Q1. Multiple Choice Questions MOTHER TERESA SR. SEC. CO-ED SCHOOL 1) WLAN stands for : CLASS VIII (Comp Sc.) CHAPTER-1 : ABOUT NETWORKING a) Wide Local Area Network b) World Local Area Network c) Wireless Local Area Network d) Wired Local Area Network 2) A computer network made up of an interconnection of LANs with a limited geographical area is called : a) LAN b) MAN c) MAN d) CAN 3) What plugs in the network card located in every computer on the LAN? a) Ethernet cables b) Switch c) Hub d) Port 4) A Port is a : a) Type of socket where cable plug is inserted b) Hub c) Switch d) Type of network 5) MAN stands for : a) Metropolitan Area Network b) Metro Area Network b) Main Area Network d) Metropolitan Arc Network 6) In which type of network a moving user can connect to a LAN through a wireless (radio)connection a) WAN b) LAN c) WLAN d) MAN 7) Which network architecture has nodes connected to each other and does not have servers : a) WAN b) MAN c) Peer to Peer d) Client Server Architecture Q2. Fill in the blanks with suitable words. 1) A network consists of 2 or more computers called nodes or workstation. 1

2 2) To establish a wired network, one requires network interface cards, network software, a hub or switch and Ethernet cables. 3) LAN, MAN and WAN are different forms of networks. 4) Peer-to-Peer Network has nodes connected to each other but does not have servers. 5) The password is a secret word that only you and your network knows. 6) A wireless network interface card bears an antenna. 7) The wireless networking switch is also called an Access Point. 8) The Radio waves are used to form Wireless LANs. Q3. One Word Answer 1) The network that is completely trouble free and easy to maintain? Ans. wireless 2) What are the networks that are confined to a building or group of buildings? Ans. LAN 3) Which network connects an area larger than LAN but smaller than a WAN, such as city with dedicated high performance hardware? Ans. MAN 4) What is the another name of wireless networking switch? Ans. Access point Q4. Write the full forms of the following : a) LAN : Local Area Network b) WAN : Wide Area Network c) MAN : Metropolitan Area Network d) CAN : Campus Area Network e) NIC : Network Interface Card Q5. Very Short Answer 1) What is licensed copy? Ans. Licensed copy is the legal(authorized) copy of software. 2

3 2) What is the function of wireless NIC? Ans. It bears an antenna to transmit signals. 3) What are the requirements to form a wireless network? Ans. NIC, Wireless networking switch (Access point) 4) Name the types of network. Ans. LAN, MAN and WAN. 5) What is a port? Ans. A port is a type of socket where cable plug is inserted. Q6. Short Answer 1) What are Servers? Ans. Servers are powerful computers held at central location within an organization. They provide services and information to a number of workstation computers. 2) What are the two identification steps of Logging On? Ans. The two identification steps are : i) You need to enter the user ID, the name by which the network knows you. ii) You must enter a password. 3) What are Clients? Ans. Clients are computer workstations on the desks of employers in an organization. 4) What is a WLAN? Ans. A wireless LAN is one in which a moving user can connect to a local area network(lan) through a wireless(radio)connection. Q7. Long Answer 1) What is the difference between Peer-to-Peer network and Client/Server network? Ans. Peer-to-Peer network : Is common in small LANs particularly home networks. Have nodes connected to each other but do not have servers. Files can be shared and 3

4 printers can be accessed by another node. Are simpler to set up. Client/Server network : Network clients make requests to a server by sending messages and servers respond to their clients by acting upon each request and returning the results. It consist of two types of computers : Server and Client 2) Define LAN, MAN and WAN. Ans. LAN : Is a computer network that covers a relatively small area. Most LANs are confined to a single building or group of building. LANs can be connected to each other over any distance via telephone lines or radio waves. MAN : Is a network which connects an area larger than a LAN but smaller than a WAN such as city with dedicated or high performance hardware. WAN : Is a computer network spread over a large geographical area like two different cities/countries. A WAN consists of two or more LANs connected through the telephone system or can also be connected through leased lines or satellites. 3) What are the advantages of network? Ans. The advantages of network are : i) File management : Has a quick, easy and reliable way to share and manage files. ii) iii) iv) Resource sharing : Resources like printer, modem, fax etc. can be shared when computers are connected in a network. Cost saving on software: Instead of buying software for all computers, it is cheaper to install on any one network connected computer for its share or use. Internet sharing: All computers in a network can take advantage of the high bandwidth and access Internet at a fast speed. v) Security : Files and programs on a network can be password protected for authorized users only. 4

5 4) How does networking improve file management? Ans. Networks offer a quick, easy and reliable way to share files directly instead of using a disk or pen drive to carry files from one computer to another, which is time consuming and not a very reliable process. Files can be shared directly using a network. Q8. Draw the following : a) LAN b) MAN c) WAN d) Wireless LAN (Pg.no.5) (Pg.no.3) Q9. Application Based Question 1) Mr. Rajan has to link five computers with each other placed in 3 rooms of his house. What type of network and network architecture should he use? Ans. LAN Network. Peer to Peer network architecture he ll use. 2) Sumit has to collect hardware to connect three PCS placed in his room using wires. What hardware components does he need? Ans. Sumit needs Ethernet cable, Hub and LAN Card. 3) Amit also has to connect his 3PCs in a room but wirelessly. What hardware does he require for this? Ans. Amit needs a wireless LAN card, USB card and Access Point. 5

6 MOTHER TERESA SR. SEC. CO-ED SCHOOL CLASS VIII(Comp.Sc.) CHAPTER-2 : WIRELESS AND CLOUD TECHNOLOGIES Q1. Multiple Choice Questions 8) GPRS stands for : b) Global Packet Radio Service b)generation Packet Radio Service c) General Packet Radio Service d) Wired Local Area Network 9) What is the range of coverage of WiMax? b) 30 meters b) 50 meters c) 100 meters d) 50 kms 10) The GPS receiving equipment is typically known as : a) GPS receiver b) Hot spot c) Hub d) Satellite 11) Which mobile technology enables network operators to offer users a wider range of more advanced services like wide-area wireless voice telephony, video calls etc. all in the mobile environment? c) GPS b) 3G Technology c) GPRS d) WiFi 12) Wi-Fi stands for : c) Wireless Fidelity b) Wireless Internet Fidelity d) Wired Fidelity d) Wired Internet Fidelity 13) Which technology is suitable to cover the whole city for Internet? b) Wi-Fi b) Bluetooth technology c) WiMax d) GPRS 14) What is a Hot-Spot? b) A type of satellite used in GPS b) GPS Receiver c) A zone that has high speed wireless internet access d) WiF Device Q2. Fill in the blanks with suitable words. 9) The remote control, using which you switch on/off and control operations of TV operations of TV and a conditioner, uses the Infrared technology. 10) Bluetooth technology uses short-range radio links to connect and replace the 6

7 necessity of cables. 11) A hotspot is a zone that is enabled with high-speed wireless Internet access. 12) The GPRS is a new non-voice service that allows Mobile Phones to connect to the Internet for sending and receiving data. 13) 3G networks enable network operators to offer users a wider range of more advanced services in a mobile environment. 14) GPS is the first positioning system to offer highly precise location data for any point on the planet, in any weather. Q3. One Word Answer 5) The technology used to form a wireless headset connected remotely to a cell phone? Ans. Infrared 6) Which communication technology uses short-range radio frequencies to interconnect electronic devices such as mobile phones, PCs etc? Ans. Bluetooth 7) In cloud technology, what does the term Cloud refer to? Ans. Internet 8) What is the reason of increased range of WiMax over WI-Fi? Ans. Due to frequency used and power of the transmitter. 9) What is the number of satellites with coordinated ground coverage called? Ans. Satellite constellation Q4. Write the full forms of the following : f) GPS : Global Positioning System g) GPRS : General Packet Radio Service h) WiFi : Wireless Fidelity i) WiMax : WorldWide Interoperability for Microwave Access 7

8 Q5. Very Short Answer 6) What is a Hot-Spot? Ans. Hot-Spot is a zone that is enabled with high speed wireless internet access. 7) What is WiMAX? Ans. WiMAX is a technology standard for long range wireless networking. 8) What is the function of GPS? Ans. GPS is based on satellites that allows a user with a receiver to determine the precise coordinates of their location on the earths surface. 9) What is Cloud storage? Ans. Cloud storage is a term refers to online space that we can use to store the data. Q6. Short Answer 1) What is a mobile broadband? Ans. It s a general term used to describe high speed internet access from mobile service providers for portable devices like mobile phones and tablets. 2) Brief on Bluetooth technology. Ans. Bluetooth technology uses short-range radio frequencies to connect and replace the necessity of cables. It enables wireless data communication between Bluetooth enabled devices such as mobile phones, PCs etc. 3) What is Cloud computing? Ans. 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 are provided to computers and other devices on demand. 4) What is the use of 3G/4G network technology? Ans. 3G networks enable network operators to offer users a wider range of more advanced services like wide-area wireless voice telephony, video calls and broadband wireless data, all in a mobile environment. 4G network have very standards of speed and connectivity to enhance web communication and connection reliability. 8

9 Q7. Long Answer 5) What are the advantages of Cloud Computing? Ans. The advantages of cloud computing are : i) People world wide can access the cloud. ii) No need to spend big money on hardware, software or licensing fee. iii) You have access anytime, anywhere, making your life so much easier. iv) It takes fewer people to do more work on a cloud, with less time wasted on hardware and software issues. 6) Differentiate between Bluetooth and WiFi. Ans. Bluetooth technology uses short-range radio frequencies to connect and replace the necessity of cables. It enables wireless data communication between Bluetooth enabled devices such as mobile phones, PCs etc. WiFi stands for Wireless Fidelity and is a term for a high speed wireless access technology. It is a method of connecting any WIFi equipped device by radio waves to each other,to a LAN or to the internet without wires. 7) What is GPS? Ans. GPS is a world wide radio-navigation system formed from a constellation of 24 satellites and their ground stations. The ground stations monitor the GPS satellites, checking both their operational health and their exact positions in space. 8) Write the uses of GPS. Ans. The uses of GPS are : i) Simple determination of a position or location. ii) First positioning system to offer highly precise location data for any point on the planet, in any weather. iii) The system s positioning and timing data are used for a variety of applications, including air, land, sea navigation, vehicle tracking, surveying and mapping and asset and natural resource management. 9

10 Q8. Draw the following : b) Bluetooth adapter (Pg.no.12) b) Wireless and Cloud (Pg.no.15) Q9. Value Based Question 1) Ajay has to connect computers in house wirelessly. Which wireless technology he should use? Ans. WiFi 2) Rahul went to a city which he had never visited before but was able to find his way very accurately in the city with the help of technology. Name the technology which had helped him. Ans. GPS 3) Harish has to carry a lot of data while travelling but often forgets to take his pen drives and DVDs from place to place. What solution would you suggest for him? Ans. Cloud storage 10

It is the process of sharing data, programs, and information between two or more computers.

1 Communications It is the process of sharing data, programs, and information between two or more computers. Numerous applications depend on communication systems: E-mail Instant messaging (IM) Internet