Answer:
Data link layer enables the receiving node to send an acknowledgement.
Explanation:
The data link has following function;
1 it send the acknowledgement to the node because for the reliable transmission.
2.Data link layer provides the interface to the network layer.
3.it regulate the flow of data.
4.It control the transmission error.
The important function of data link layer it created packets of the data to send the packets in guarantee manner for giving the acknowledgement to the node that data is received successfully.
When two people come together, each with a clear definition of their identities, the potential can be astounding. A successful communication is composed of two individuals - each with a clearly defined sense of her or his own identity.
Answer:
The technology of information communication has the capacity to transform society. It plays a key part and provides the infrastructure needed to achieve each of the United Nations Sustainable Development Goals. It also allows financial integration by m-commerce and lets people connect instantly to millions.
ICT has a particularly important impact on business. It allows people to exchange knowledge and advice immediately and establish a website or online shop at a low cost, thus reducing the obstacles to starting a business dramatically. As such, it is a major factor in change and the maturity of ICTs is strongly connected to economic growth.
Explanation:
Effects of ICT
As a human beings, we are always associated in our everyday life with many essential things. The use of ICT equipment in our lifestyle has simplified many time-consuming calculations and difficult tasks, and social contacts have been strengthened. ICT has affected life by enhancing the timely distribution of media information and improved home and workplace communications via social networking, e-mail, etc.
The quality of human life has been greatly improved by ICT. For example, it could take a few days for a letter to come to the recipient, but a single minute for an e-mail to reach. ICT offers a broader understanding and information for each facility 24 Hrs X 7 days. In the following, ICT affects different fields of daily living.
Positive Impacts of ICT:
- As domestic and home businesses.
- As E-learning/ As education
- As for banks
- As a job/jobs
Negative Impacts of ICT:
- Face-to-face interaction reduced.
- Social Decoupling.
- Physical activity/health issues reduced.
- Cost.
