1. A website is a collection of web pages.

2. A website (also written as a website) is a collection of web pages and related content identified by a common domain name and published on at least one web server.

3. A group of related web pages makes up a website.

4. Some examples of a website include-

- News websites, such as CNN.com and BBC.com

- E-commerce websites, such as Amazon.com and eBay.com

- Social media websites, such as Facebook.com and Twitter.com

- Personal websites, such as About.me and Blogger.com

1. The main page of a website is the home page which acts as a gateway to the rest of the pages of the website. The home page is usually the gateway to the website.

2. A home page is a webpage that serves as the starting point of a website.

3. This is the default webpage that loads when visiting a web address that contains only a domain name.

1. Website https://www.irctc.co.in belongs to Indian Railways.

2. IRCTC has revolutionized the lives of the common man traveling by Indian Railways.

3. IRCTC online ticket booking system is a boon for the common man, empowering him through technology.

1. It is an international online software store developed by Google for Android devices.

2. Google Play is an online store where people can find their favorite applications, games, movies, TV shows, books, and more.

3. There are 2 million applications and games available for billions of people in the world.

4. So far, developers have earned more than $120 billion from these.

There are many types of cyber threats, including:

1. Spam Email: Spam email is a type of cyber threat which is done by sending unsolicited emails. Spam emails are often used to spread advertisements, scams, or viruses.

2. Hacking: Hacking is a type of cyber threat that involves gaining unauthorized access to a computer system or network. Hackers often use hacking to steal data, damage systems, or intercept transactions.

3. Phishing: Phishing is a type of cyber threat in which victims are tricked into providing their personal information, such as passwords or credit card numbers. Phishing attacks are often carried out via email, social media, or websites.

4. Viruses: Viruses are a type of malware that can infect a computer system and damage data, slow down the system, or even disable it. Viruses often spread through spam emails, infected files, or physical media.

5. Worm: A worm is a type of malware that can copy itself from a computer system and spread from one system to another. Worms often spread via email, infected files, or physical media.

6. Denial-of-Service (DoS) attacks: DoS attacks are a type of cyber threat that is used to disable a website or service. DoS attacks are often carried out using large amounts of traffic or resources.

7. Load Ballast Attacks: Load ballast attacks are a type of DoS attack in which a large amount of data is sent to a website or service. Load ballast attacks are often carried out to disable a website or service.

8. Human-based attacks: Human-based attacks are a type of cyberattack that target people. Human-based attacks can include phishing, social engineering, and cyberpsychology.

9. Physical Attacks: Physical attacks are a type of cyberattack that targets the physical components of a computer system or network. Physical attacks could include data centre fires or power outages.

The search engine performs the following tasks-

1. Web crawling: Search engines search all web pages on the web using a crawler. A crawler is a program that finds new web pages by following links on the web.

2. Indexing: Once the crawler finds all the web pages, the search engine indexes them in a database. The index contains information for each web page, such as title, URL, and content.

3. Searching: When a user types a search query, the search engine searches all the web pages in the index that may be related to the query.