Test: Internet- 1 - SSC CGL MCQ

• In the Internet protocol stack, when data is sent from device A to device B, the 5th layer to receive data at B is the Application layer.
• The application layer is a layer in the Open Systems Interconnection (OSI) seven-layer model and in the TCP/IP protocol suite.
• It consists of protocols that focus on process-to-process communication across an IP network and provides a firm communication interface and end-user services.
• Example: HTTP, TELNET, FTP, IMAP etc.

URL stands for:
- A: Universal Resource Locator
- B: Uniform Resource Locator
- C: Uniform Radio Locator
- D: None of these
Detailed
A URL, or Uniform Resource Locator, is a string of characters that provides the address or location of a resource on the internet. It is used to specify the location of a webpage, file, or any other resource accessible on the internet.
Here is a detailed explanation of the options:
- A: Universal Resource Locator: This is not the correct answer. Although it sounds similar to the correct option, the correct term is "Uniform Resource Locator."
- B: Uniform Resource Locator: This is the correct answer. The term "Uniform Resource Locator" is used to describe the standard format for addresses on the web.
- C: Uniform Radio Locator: This is not the correct answer. "Uniform Radio Locator" is not a recognized term in the context of web addresses.
- D: None of these: This is not the correct answer. The correct answer is option B, "Uniform Resource Locator."
In conclusion, the correct answer for the acronym URL is B: Uniform Resource Locator.

FTP can be run on the following operating systems:
- Unix: FTP can be run on Unix operating systems. Unix is a family of multitasking, multiuser computer operating systems that are widely used for servers and workstations.
- Linux: FTP can be run on Linux operating systems. Linux is an open-source operating system that is based on the Unix operating system.
- Dos/Windows: FTP can be run on Dos/Windows operating systems. DOS (Disk Operating System) is an operating system that was popular in the early days of personal computers, while Windows is a widely used operating system developed by Microsoft.
Therefore, the correct answer is option B: Linux, as FTP can be run on Linux operating systems. However, it is important to note that FTP can also be run on Unix and Dos/Windows operating systems, so option D is also correct.
Overall, FTP is a versatile protocol that can be run on various operating systems, allowing users to transfer files between computers over a network.

Explanation:
The correct answer is B:

Dos

. DOS (Disk Operating System) is not a requirement of the internet. Here is a detailed explanation of why each of the other options is a requirement:
A: Operating System
- An operating system is required to run the necessary software and manage hardware resources on a computer. It provides the foundation for running internet-related applications and services.
C: Web browser
- A web browser is essential for accessing and viewing websites on the internet. It interprets HTML, CSS, and JavaScript code to display web pages and allows users to navigate through different websites.
D: Modem
- A modem is used to connect a computer or other device to the internet. It converts digital data from the computer into analog signals that can be transmitted over telephone lines or other communication channels. The modem at the receiving end then converts the analog signals back into digital data.
In summary, while an operating system, web browser, and modem are all requirements for accessing and using the internet, DOS is not necessary for internet connectivity.

D: Google: Google is a search engine and a technology company that developed the Google Chrome web browser. Google Chrome is one of the most popular browsers globally.

Email (electronic mail) is the exchange of computer-stored messages from one user to one or more recipients via the internet.

Which service provides 3D view of earth?
The service that provides a 3D view of the Earth is Google Earth.
Google Earth:
- Google Earth is a virtual globe, map, and geographical information program that allows users to explore and navigate the Earth in 3D.
- It provides a detailed view of the Earth's surface, including landscapes, buildings, and landmarks.
- Users can zoom in and out, rotate the view, and navigate to different locations around the world.
- It offers features such as Street View, which allows users to view and navigate through street-level imagery.
- Google Earth also provides historical imagery, allowing users to see how a location has changed over time.
- It is available as a desktop application and also as a web-based version called Google Earth Web.
Wikipedia:
- Wikipedia is an online encyclopedia that provides information on various topics, including Earth-related information.
- While Wikipedia may include images and maps of the Earth, it does not offer a 3D view of the Earth like Google Earth.
Skype:
- Skype is a telecommunications application that provides video chat and voice call services.
- It does not provide a 3D view of the Earth.
None of these:
- This option is incorrect as Google Earth does provide a 3D view of the Earth.
In conclusion, the service that provides a 3D view of the Earth is Google Earth.

Explanation:
The application of the internet refers to the various ways in which the internet is used in our daily lives. The internet has revolutionized the way we communicate, conduct business, and access information. However, there are certain activities that are not considered as applications of the internet.
Here, the option "D: Sleeping" is not an application of the internet. Sleeping is a biological process and does not involve the use of the internet. The internet cannot be directly used for sleeping purposes.
Applications of the Internet:
A: Communication
- The internet allows people to communicate with each other through various means such as email, instant messaging, video calls, and social media platforms.
- It enables people to connect with others globally, facilitating communication in real-time.
B: Banking
- The internet is widely used for online banking services, allowing individuals to access their bank accounts, make transactions, and manage their finances online.
- It provides convenience and accessibility to banking services from anywhere at any time.
C: Shopping
- Online shopping has become increasingly popular with the advent of the internet.
- It allows consumers to browse and purchase products from various online retailers, making shopping more convenient and accessible.
In summary:
The internet has numerous applications, including communication, banking, and shopping. However, sleeping is not an application of the internet as it does not involve the use of online services or activities.

Difference between the Internet and an Intranet:
1. Accessibility and Scope:
- Internet: Public network accessible to anyone with an internet connection.
- Intranet: Private network accessible only to authorized users within an organization.
2. Ownership and Control:
- Internet: Owned and controlled by various organizations and service providers.
- Intranet: Owned and controlled by a specific organization.
3. Privacy and Security:
- Internet: Generally considered less secure as it is exposed to external threats.
- Intranet: Can be more secure as it is protected behind firewalls and other security measures.
4. Connectivity:
- Internet: Connects millions of devices worldwide, enabling global communication.
- Intranet: Connects devices within a specific organization, facilitating internal communication.
5. Content and Purpose:
- Internet: Hosts a vast amount of publicly accessible information, services, and websites.
- Intranet: Primarily used for internal purposes such as sharing company resources, documents, and collaboration.
6. Monitoring and Control:
- Internet: Can be monitored and controlled to some extent by service providers and government agencies.
- Intranet: Can be more closely monitored and controlled by the organization, ensuring data privacy and compliance.
7. Scalability:
- Internet: Designed to accommodate a large number of users and devices across the globe.
- Intranet: Designed to serve the specific needs of a particular organization, generally smaller in scale.
8. Cost:
- Internet: Access to the internet typically involves subscription fees or usage charges.
- Intranet: Costs associated with setting up and maintaining an intranet are borne by the organization.
In summary, the main difference between the internet and an intranet lies in their accessibility, ownership, security, purpose, and control. The internet is a public network accessible to all, while an intranet is a private network limited to authorized users within an organization. The internet is less secure and more exposed to external threats, whereas an intranet can have higher security measures in place. The internet connects devices globally, while an intranet connects devices within an organization. The internet hosts public information and services, while an intranet is primarily used for internal communication and resource sharing. Finally, the internet can be monitored and controlled by service providers and governments, while an intranet is monitored and controlled by the organization itself.

Search Engines

• Google: Google is a popular search engine used by millions of people worldwide to find information on the internet. It indexes web pages and provides relevant search results based on user queries.


• FTP: FTP (File Transfer Protocol) is not a search engine. It is a protocol used for transferring files between computers on a network.


• Archie: Archie is not a search engine either. It was one of the first search tools developed in the early days of the internet, but it primarily indexed FTP sites and allowed users to search for specific files.


• ARPANET: ARPANET was the precursor to the modern internet. It was a network of computers developed by the U.S. Department of Defense. However, it was not a search engine.

In conclusion, out of the given options, only Google is a search engine. FTP, Archie, and ARPANET are not search engines but rather protocols or early internet tools.