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Soloha48 [4]
2 years ago
13

Which of the following is a key feature of a relational database?

Computers and Technology
1 answer:
Mekhanik [1.2K]2 years ago
3 0

It uses primary keys and foreign keys as a means to provide efficient access to data and is supported directly in the database rather than maintained in the application code.

Explanation: Relational databases use an expressive query language, make efficient use of indexes within the database, ensure strong consistency, and fit well within an enterprise management system. Non-relational databases have a flexible data model, have high scalability, and performance, and have always-on global deployments.

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A sample member of the list data is a1 = ['male', True] where the second item is True if the person is on the phone.
Ira Lisetskai [31]
Answer:

0

Explanation:
In the lists, indexation starts from 0, because of that in if statement we compare item[0] which is 'male' and 'male', and then males is itterated within for loop.
8 0
3 years ago
Read 2 more answers
Discuss any five positive and five Negative impact<br>of ICT on society​
mojhsa [17]

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 social connectivity.
  • As E-learning/ As education
  • As for shopping/trading
  • As for banks
  • As a job/jobs

Negative Impacts of ICT:

  • Face-to-face interaction reduced.
  • Social Decoupling.
  • Physical activity/health issues reduced.
  • Cost.

4 0
3 years ago
Describe any five Morden application areas of computer​
Alecsey [184]

Answer:

Some of the application areas of computer are 

1.banking,

2.education,

3.industries,

4.entertainments,

5.hospitals,

7 0
3 years ago
Using the POP standard for client to server e-mail communication, the e-mail messages remain on the server computer. True False
Gelneren [198K]

Answer:

False

Explanation:

8 0
3 years ago
Between which zones and a DMZ should firewalls be placed? Choose two answers.
brilliants [131]

Answer:

Internal and External Zones

Explanation:

Demilitarized Zone (DMZ) in a network means that, we make sure the security of network at higher level as military make sure the security of their bases or zones.

In this type of network, The network of the internal organization (LAN) needs security from hackers and unauthorized users who are trying to access the resources and information from the network.

This network is divided into two major zones. A DMZ has been placed between two zones along with firewalls enhance the security of LAN Network from the networks on internet. These two zones are named as Internal and External Zone. The firewall between DMZ and External zones monitors the users from external networks on the internet who tries to access organization's network. Internal network monitors the traffic between DMZ and Internal LAN network.

4 0
4 years ago
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