Ch. 1 Basics of Networking

CBSE Study Material Solution Class XI Web Application 803

Multiple Choice Questions

1. A number of devices connected with each other through some transmission medium is:
a) Group
b) Network
c) Nodes
d) System

2. The information or data to be communicated through text, numbers, pictures, audio, and video is:
a) Sender
b) Channel
c) Message
d) Receiver

3. The physical path by which a message travels from sender to receiver is:
a) Transmission medium
b) Bandwidth
c) Connection
d) Switch

4. A set of rules that govern data communications and represent an agreement between the communicating devices is called:
a) Data Rules
b) Transmission Laws
c) Data Instructions
d) Protocols

5. Which of these devices cannot be a sender:
a) Computer
b) Stylus
c) Mobile Phone
d) Tablet

6. Which of the following statements are true about communication channels:
a) It is used to send data or signal from one or several senders to one or several receivers.
b) A channel has a certain capacity for transmitting information.
c) It can be either a physical transmission medium or a logical connection, such as a radio channel.
d) All of the above

7. The term for the amount of data that can be transferred from one point to another within a network in a specific amount of time is:
a) Data transfer
b) Baud
c) Bandwidth
d) Network Capacity

8. The speed of travel of a given amount of data from one place to another is called:
a) Data transfer Rate
b) Baud
c) Network Capacity
d) Bandwidth

9. One terabit per second (Tbps) is not equal to:
a) 10³ Gigabit per second
b) 10⁸ Megabit per second
c) 10⁹ Kilobit per second
d) 10¹² bits per second

10. Which of the following statements is incorrect?
a) The data transfer rate of a network connection is measured in units of bits per second
b) Network equipment manufacturers rate the bandwidth of products in Kbps/Mbps/Gbps.
c) 1 GBps = 1 Gbps
d) Bits per second is the smallest unit measurement for data rate

11. A numerical representation that uniquely identifies an interface or device on the network:
a) Address
b) Token
c) Protocol
d) IP Address

12. Which of the following statements are true for IP Address:
a) IP address is represented as 4 octets of numbers from 0-255.
b) IP address is unique for a device.
c) The full form of IP is Internet Protocol.
d) All of the above

13. What is the full form of Wi-Fi?
a) Wired Fidelity
b) Wireless Fidelity
c) Wireless Filter
d) It has no full form

14. A device that converts analog signals to digital and vice versa:
a) Router
b) Switch
c) Modem
d) Hub

15. Routers connect:
a) LAN
b) WAN
c) LANs and WANs together
d) None of these

16. Which of the following is not true about Gateways?
a) Not as complex as switch or router
b) Work upon different networking models
c) Are also called protocol converters
d) Take data from one system, interpret it, and transfer it to another system

17. Which network device has a buffer and performs error checking before forwarding data?
a) Hub
b) Repeater
c) Switch
d) Router

18. LAN or Local Area Network is about
a) 10m radius
b) 10 km radius
c) 50 km radius
d) No distance limitation

19. If you are sharing songs with your friend through Bluetooth, it is a
a) LAN
b) WAN
c) PAN
d) MAN

20. The Internet is an example of :
a) LAN
b) WAN
c) PAN
d) MAN

21. Various devices connected at home without a server is an example of :
a) Peer to Peer Architecture
b) Client Server Architecture
c) Wi Fi Architecture
d) None of these

22. Which of the following is not a Malware?
a) Ransomware
b) Viruses
c) Trojan horses
d) Instagram

23. _____ in the form of a router prevents malicious software from entering your network from outside the network:
a) Hardware firewall
b) Anti-Virus
c) Malware
d) Gateway

24. The ______ software operates by maintaining a database of malware definitions, which are automatically updated:
a) Operating System
b) Application
c) Anti-Virus
d) Firewall

25. _____ is typically accomplished by flooding the targeted network or resource with superfluous requests in an attempt to overload systems and prevent some or all legitimate requests from being fulfilled.
a) Phishing
b) DOS attack
c) Adware
d) Ransomware

II. Differentiate between

a) Modem and Router

Answer: Modem vs Router

b) Hub and Switch

Answer: Hub vs Switch

c) PAN, LAN, MAN and WAN

Answer:

III. Short answer questions

Q1. What is a computer network?
Q2. What is the Internet?
Q3. What are some of the applications of Internet?
Q4. What does the term data communication mean?
Q5. What are the five components of data sharing over a network?
Q6. What is a data communication channel?
Q7. What does the term Bandwidth signify?
Q8. Explain maximum and actual Bandwidth with the help of an example.
Q9. Why is actual Bandwidth usually less than the maximum bandwidth ?
Q10. What is Data Transfer Rate?
Q11. What is a Protocol?
Q12. What is the significance of IP Addresses?