Std VIII | II Semester Revision | Lesson 6 & Lesson 7
Lesson 6 & Lesson 7 – All Questions & Answers
Lesson No. 6 – Computer Network
A) Answer the Following
Q1. What is a computer network?
👉 A computer network is a group of interconnected computers that share data and resources.
Q2. What is Peer-to-Peer architecture?
👉 It is a network architecture where all computers have equal status.
Q3. What is Client-Server architecture?
👉 It is a network where a central server provides services to client computers.
Q4. What is the main function of a hub?
👉 A hub connects multiple computers and broadcasts data to all devices.
Q5. What is the use of a switch in a network?
👉 A switch sends data only to the intended receiving device.
Q6. What is a router used for?
👉 A router connects different networks and directs data packets.
Q7. What is a workstation?
👉 A workstation is a computer used by a user on a network.
Q8. What is NIC?
👉 NIC is a hardware device that connects a computer to a network.
Q9. What is network topology?
👉 Network topology is the layout of devices in a computer network.
Q10. What is FTP used for?
👉 FTP is used to transfer files from one computer to another over a network.
B) True or False
- A hub is an intelligent networking device – False
- In Client-Server architecture, the server controls the network – True
- NIC helps a computer connect to a network – True
- In Star topology, all devices are connected to a central device – True
- Mesh topology uses only one communication path – False
- FTP is used to transfer files over a network – True
- LAN covers a very large geographical area – False
- A router is used to connect different networks – True
- Ring topology allows data to flow in a circular manner – True
- Switch broadcasts data to all connected devices like a hub – False
C. Match the Following.
| Column A | Answer | Column B |
|---|---|---|
| 1. Hub | g. Connects devices blindly | a. File transfer protocol |
| 2. Switch | d. Sends data intelligently | b. Central connecting device |
| 3. Router | e. Connects different networks | c. Circular data flow |
| 4. Star Topology | b. Central connecting device | d. Sends data intelligently |
| 5. Ring Topology | c. Circular data flow | e. Connects different networks |
| 6. LAN | f. Small area network | f. Small area network |
| 7. FTP | a. File transfer protocol | g. Connects devices blindly |
D) Full Forms
- LAN – Local Area Network
- WAN – Wide Area Network
- MAN – Metropolitan Area Network
- NIC – Network Interface Card
- TCP – Transmission Control Protocol
- IP – Internet Protocol
- FTP – File Transfer Protocol
- HTTP – HyperText Transfer Protocol
- HTTPS – HyperText Transfer Protocol Secure
- ISP – Internet Service Provider
- MAC – Media Access Control
- URL – Uniform Resource Locator
- DNS – Domain Name System
- PAN – Personal Area Network
- WLAN – Wireless Local Area Network
Lesson No. 7 – Cloud Computing
A) Answer the Following
Q1. What is cloud computing?
👉 Cloud computing is the use of internet-based services to store and process data.
Q2. What is a cloud service?
👉 A cloud service provides computing resources over the internet.
Q3. Name any one type of cloud computing.
👉 Public cloud is one type of cloud computing.
Q4. What is Infrastructure as a Service (IaaS)?
👉 IaaS provides virtual hardware like servers and storage online.
Q5. What is Platform as a Service (PaaS)?
👉 PaaS provides a platform to develop and run applications.
Q6. What is Software as a Service (SaaS)?
👉 SaaS provides software applications through the internet.
Q7. What is the use of cloud storage?
👉 Cloud storage is used to save data online and access it anytime.
Q8. Name one popular cloud service provider.
👉 Amazon Web Services (AWS) is a popular cloud service provider.
Q9. What is scalability in cloud computing?
👉 Scalability is the ability to increase or decrease resources as needed.
Q10. What is pay-as-you-use model?
👉 It means users pay only for the services they use.
B) True or False
- Cloud computing always requires internet connection – True
- Data stored in the cloud cannot be shared – False
- SaaS provides ready-to-use software – True
- Private cloud is shared by the public – False
- Google Cloud is a cloud service provider – True
- Cloud computing reduces the need for physical storage devices – True
- Cloud services are free for unlimited use – False
- IaaS provides virtual machines and storage – True
- Cloud computing supports scalability – True
- Cloud data can be accessed from anywhere using the internet – True
C. Match the Following.
| Column A | Answer | Column B |
|---|---|---|
| 1. IaaS | g. Virtual hardware | a. Google services |
| 2. PaaS | d. Application platform | b. Shared cloud |
| 3. SaaS | e. Online software | c. Single organization |
| 4. Public Cloud | b. Shared cloud | d. Application platform |
| 5. Private Cloud | c. Single organization | e. Online software |
| 6. AWS | f. Amazon cloud | f. Amazon cloud |
| 7. Google Cloud | a. Google services | g. Virtual hardware |
D) Full Forms
- AWS – Amazon Web Services
- SaaS – Software as a Service
- PaaS – Platform as a Service
- IaaS – Infrastructure as a Service
- VM – Virtual Machine
- CPU – Central Processing Unit
- RAM – Random Access Memory
- SLA – Service Level Agreement
- API – Application Programming Interface
- CDN – Content Delivery Network
- DB – Database
- OS – Operating System
- MFA – Multi-Factor Authentication
- SaaS – Software as a Service
- IDC – Internet Data Center
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