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It routes the data packet to its proper destination address. It also allows any computer to further forward these
packets to another computer.
TCP has to make sure that all packets reach their destinations in order/sequence and if some packets are
missing they are resent.
HTTPS: yper ext ransfer rotocol is a protocol which is used for secure data transmissions between a
web client and a web server. It is an extended version of as it has a SS Secured Socket ayer certificate.
It ensures the encryption of data while sending and decryption of data at the receiving end. It is less prone to
hacking.
. rite any five features of Online transaction.
ns. he following are the features of online transactions:
It is secure and convenient.
It is digital so transaction details can be retrieved if required.
Marketing and promotion methods are better.
It is safe as it is cashless and has payment security.
It is not limited to a fixed local area and has a global reach.
It is suitable for impulsive buyers.
6. Name the device that converts digital signal to analog that can travel over phone lines. [CBSE Sample Paper, 2022]
Ans. MODEM
7. Networks in which certain computers have special dedicated tasks, providing services to other computers (in the
network are called networks. [CBSE Sample Paper, 2022]
Ans. Client server
. ist any advantages associated with networking. [CBSE Sample Paper, 2022]
ns. Four advantages are :
Data Sharing Files Transfer
ardware Sharing.
Internet Access Sharing
Usage of network based applications
. ifferentiate between wired and wireless access. ive one example for each type. [CBSE Sample Paper, 2022]
ns. wired setup uses physical cables to transfer data between different devices and computer systems. wireless
network does not use wires for data or voice. For example,
ired: ial-up S or able Internet ccess etc.
ireless: 3G or WiMAX or Wi-Fi
. hat do you understand by IS with respect to web applications Name any two connection types that home users
use. [CBSE Sample Paper, 2022]
ns. n Internet service provider IS is an organi ation which provides you with access to the Internet via a dial-up
using modem or direct hard wired or wireless connection. S cable modem dial-up broadband wireless
WiMAX etc.
11. Rahul and Amit are working on a school project assigned to them by their teacher. They have to send instant messages
to each other and also do video conferencing after school hours in order to complete the project on time.
a. Suggest any 4 good instant messaging software that they can use.
b. Apart from computers, list 4 hardwares that Rahul and Amit need for videoconferencing.
ns. a. oogle alk ahoo Messenger Skype indows ive Messenger ediff ol MS- eams OOM etc.
b. eadphone Speaker Microphone eb amera
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