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d. HTTP is the protocol used for secure communication over a network.
e. A mesh topology is mostly used in LANs due to its minimal chances of breakdown.
1. Tick ( ) the correct option. 4. Answer in one or two words.
a. Name the device that allows the data to flow between two different networks. ____________
a. Which device regenerates and amplifies the input signals in a network?
b. What is the unique identification number assigned to a computer connected
(i) Router (ii) Repeater
to a network? ____________
(iii) Hub (iv) Switch
c. Which type of network spans several buildings in the same city or town? ____________
b. Which of the following protocol is used to exchange data between a web browser and a website?
d. Name the topology that connects all nodes in a circular path. ____________
(i) TCP/IP (ii) HTTP
e. What is the set of rules that governs communication between computers on
(iii) FTP (iv) IMAP a network? ____________
c. Identify the topology that connects all nodes to a single central hub. 5. Think and answer.
(i) Bus (ii) Ring
a. What is the function of a Network Interface Card (NIC)?
(iii) Star (iv) Mesh
_____________________________________________________________________________
d. Which device connects and facilitates information transfer between two networks?
_____________________________________________________________________________
(i) Switch (ii) Router
b. Explain the difference between a client-server network and a peer-to-peer network.
(iii) Hub (iv) Gateway
_____________________________________________________________________________
e. Identify the correct full form of DNS.
_____________________________________________________________________________
(i) Domain Name System (ii) Digital Network System
(iii) Domain Network Service (iv) Digital Name Service c. Describe the role of a router in a network.
_____________________________________________________________________________
2. Fill in the blanks using the words from the help box.
_____________________________________________________________________________
node, bandwidth, hub, server, modem
d. How does the Global Positioning System (GPS) work?
a. A computer connected to a network is known as a _____________.
_____________________________________________________________________________
b. _____________ is a device which is used to transmit data over a network.
_____________________________________________________________________________
c. A _____________ connects multiple computers to a single network and broadcasts data to all
connected devices. e. Explain the working of a modem.
d. The capability of a transmission medium to transmit the maximum amount of data is called _____________________________________________________________________________
_____________.
_____________________________________________________________________________
e. _____________ controls the access to the hardware and software on the network.
_____________________________________________________________________________
3. Write 'T' for true and 'F' for false.
a. A hub has decision-making capabilities and works on the data link layer. f. How does the use of HTTPS instead of HTTP improve the security of data transmitted over the
Internet?
b. A PAN is used to establish communication within a range of 20 to 30 feet. _____________________________________________________________________________
c. The Internet is a collection of vast number of computers spread across the world. _____________________________________________________________________________
_____________________________________________________________________________
Networking Concepts 21

