1. To permanently delete any file or folder in Windows, Shift + Delete + Enter is used.

1. Massive Open Online Courses (MOOC) are changing the world of education by providing free online courses.

2. MOOC is a web-based free distance learning program that ensures the participation of students from geographically remote areas in the field of education.

3. It offers free online courses for higher education, executive education and employee development.

All statements are correct

Statement 1: Optical fiber uses glass (or plastic) threads (fibres) to transmit data.

Statement 2: In twisted pair wire, two wires are twisted around each other to reduce crosstalk and electromagnetic induction.

An electronic payment system using debit cards and credit cards can be done in

1. Internet means-

The Internet is a worldwide network of computers. The Internet consists of many local, regional, national and international networks. It is an international network of computers that interconnects millions of enterprises, government agencies, educational institutions individuals, etc. There is no denying the fact that the Internet has created a revolution in the way we live our lives. It has changed the way we communicate, do business and receive information, as well as our entertainment.

2. Network meaning is-

- A network is a group of computers that are interconnected through various devices so that they can communicate with each other.

Networks can be classified in many ways. One way to classify networks is based on the area they cover.

- A local Area Network (LAN) is a network in an office, building or premises.

- Metropolitan Area Network (MAN) is a network within a city.

1. The inbox is the place where e-mail messages are received in an e-mail client or online e-mail account.

2. The Inbox is the default location for all incoming mail, unless rules are set to forward messages to another e-mail address, folder, or program.

3. All e-mail clients like Microsoft Outlook or Mozilla Thunderbird and online e-mail accounts like Gmail and Outlook.com have an Inbox folder.

1. In MS Excel 2010, "Goal Seek" is a tool that works backwards with the aim of calculating an unknown value.

2. This tool allows you to set a desired result in one cell and then adjust the values in other cells to achieve that result.

Can be placed in a cell of Microsoft Excel.

- Number

- Text

- Formula