Computer/IT Class- 8 Chapter No. 2 (Network Concepts)
Answer Key Lesson -2
A. Tick the appropriate option from the following
1. All of these
2. Node
3. Firewall
4. All of these
5. Data theft
B. Fill in the blanks with appropriate words:
1. Netwrok
2. Linear
3. Hardware
4. Internet
5. Resources
C. Write 'T' for True statement and 'F' for False one :
1. False
2. True
3. True
4. False
5. True
D. Define the following :
1. Software Sharing - Software sharing is the practice of sharing or offering access to digital information or resources, including documents, multimedia (audio/video), graphics, computer programs, images and e-books.
2. Switch and Router - A router's main objective is to establish a connection between various networks in a simultaneous manner whereas A switch's main objective is to establish a simultaneous connection among various devices.
3. MODEM - A combined device for modulation and demodulation, for example, between the digital data of a computer and the analogue signal of a phone line.
4. PAN - It is an interconnection of personal technology devices to communicate over a short distance, which is less than 33 feet or 10 meters or within the range of an individual person, typically using some form of wireless technologies.
5. Peer to Peer Network Architecture - This architecture does not have a server. Each computer on the network has equal status, capabilities and responsibilities. They can communicate with all others and have a role in managing the whole network.
E. Answer the following Questions :
1. LAN is a network that usually connects a small group of computers in a given geographical area. MAN is a comparatively wider network that covers large regions- like towns, cities, etc.
2. Network security is a set of technologies that protects the usability and integrity of a company's infrastructure by preventing the entry or proliferation within a network of a wide variety of potential threats.
F. Match the given topologies and Characterstics.
1. Ring -- (b)
2. Bus -- (c)
3. Star -- (a)
A. Tick the appropriate option from the following
1. All of these
2. Node
3. Firewall
4. All of these
5. Data theft
B. Fill in the blanks with appropriate words:
1. Netwrok
2. Linear
3. Hardware
4. Internet
5. Resources
C. Write 'T' for True statement and 'F' for False one :
1. False
2. True
3. True
4. False
5. True
D. Define the following :
1. Software Sharing - Software sharing is the practice of sharing or offering access to digital information or resources, including documents, multimedia (audio/video), graphics, computer programs, images and e-books.
2. Switch and Router - A router's main objective is to establish a connection between various networks in a simultaneous manner whereas A switch's main objective is to establish a simultaneous connection among various devices.
3. MODEM - A combined device for modulation and demodulation, for example, between the digital data of a computer and the analogue signal of a phone line.
4. PAN - It is an interconnection of personal technology devices to communicate over a short distance, which is less than 33 feet or 10 meters or within the range of an individual person, typically using some form of wireless technologies.
5. Peer to Peer Network Architecture - This architecture does not have a server. Each computer on the network has equal status, capabilities and responsibilities. They can communicate with all others and have a role in managing the whole network.
E. Answer the following Questions :
1. LAN is a network that usually connects a small group of computers in a given geographical area. MAN is a comparatively wider network that covers large regions- like towns, cities, etc.
2. Network security is a set of technologies that protects the usability and integrity of a company's infrastructure by preventing the entry or proliferation within a network of a wide variety of potential threats.
F. Match the given topologies and Characterstics.
1. Ring -- (b)
2. Bus -- (c)
3. Star -- (a)
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