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Olympiad Test : Internet And Viruses - 1 - Class 7 MCQ


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20 Questions MCQ Test National Cyber Olympiad Class 7 - Olympiad Test : Internet And Viruses - 1

Olympiad Test : Internet And Viruses - 1 for Class 7 2024 is part of National Cyber Olympiad Class 7 preparation. The Olympiad Test : Internet And Viruses - 1 questions and answers have been prepared according to the Class 7 exam syllabus.The Olympiad Test : Internet And Viruses - 1 MCQs are made for Class 7 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test : Internet And Viruses - 1 below.
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Olympiad Test : Internet And Viruses - 1 - Question 1

Find the odd one out.

Detailed Solution for Olympiad Test : Internet And Viruses - 1 - Question 1
Explanation:
The odd one out is option D: www.altavist.com.
Reason:
- Option A: www.blogger.com is a legitimate website for creating and managing blogs.
- Option B: www.tumblr.com is a legitimate website for creating and sharing various types of content, including blogs.
- Option C: www.blogspot.com is a legitimate website owned by Google for creating and managing blogs.
- Option D: www.altavist.com is not a valid website. The correct website for AltaVista, a web search engine, is www.altavista.digital.com.
Therefore, option D is the odd one out as it does not correspond to a legitimate website.
Olympiad Test : Internet And Viruses - 1 - Question 2

Identify this internet tool.

It is used for locating information on the internet. It matches search terms with indexed pages.

Detailed Solution for Olympiad Test : Internet And Viruses - 1 - Question 2
Identifying the Internet Tool:
The internet tool described is a search engine.
Explanation:
A search engine is a software program or tool that is used to search and locate information on the internet. It matches search terms or keywords with indexed pages to provide relevant results to the user. Here is a detailed explanation of each option and why it is not the correct answer:
A. Database:
- A database is a structured collection of data that is organized and stored for easy access and retrieval.
- While search engines use databases to store and index web pages, a database itself is not the correct answer.
B. Deep Web:
- The deep web refers to web pages or content that are not indexed by search engines and are not easily accessible through regular browsing.
- While search engines can access and index some parts of the deep web, it is not the correct answer as it does not specifically refer to a tool used for locating information on the internet.
C. URL:
- A URL (Uniform Resource Locator) is the address used to locate a webpage or resource on the internet.
- While URLs are used in search engines to access and display specific webpages, it is not the correct answer as it does not refer to the tool itself.
D. Search Engine:
- A search engine is the correct answer as it is specifically designed and used for locating information on the internet.
- Search engines have algorithms that crawl and index web pages, and they match search terms with indexed pages to provide relevant results to users.
In conclusion, the correct answer is Search Engine (D), as it is the internet tool used for locating information by matching search terms with indexed pages.
Olympiad Test : Internet And Viruses - 1 - Question 3

You CANNOT browse websites on the internet using ______.

Detailed Solution for Olympiad Test : Internet And Viruses - 1 - Question 3
Answer:

You cannot browse websites on the internet using FTP.


Explanation:

FTP (File Transfer Protocol) is a standard network protocol used to transfer files between a client and a server on a computer network. It is primarily used for uploading and downloading files, but it does not support browsing websites like a web browser does.


The other options mentioned - broadband, dial-up, and 3G/4G - are all methods of accessing the internet and can be used to browse websites. Here's a brief explanation of each:



  • Broadband: This refers to high-speed internet connections that provide fast and reliable access to the internet. It can be delivered through various technologies such as DSL, cable, or fiber optic cables.

  • Dial-up: This is a slower method of internet access that uses a telephone line and a modem to establish a connection. It is less common nowadays due to its slower speeds and limitations.

  • 3G/4G: These are mobile network technologies that allow wireless internet access on mobile devices. 3G (third generation) and 4G (fourth generation) networks provide faster speeds and better connectivity compared to dial-up.


Therefore, the correct answer is D: FTP.

Olympiad Test : Internet And Viruses - 1 - Question 4

Which of the following is the use of the internet?

Detailed Solution for Olympiad Test : Internet And Viruses - 1 - Question 4
Use of the Internet
There are several uses of the internet, which include:
1. Software sharing: The internet allows users to share software programs, applications, and updates easily. This enables collaboration and access to a wide range of software tools and resources.
2. Organization promotion: The internet provides a platform for businesses and organizations to promote their products, services, and brand identity. Websites, social media platforms, and online advertising can be used to reach a global audience and increase visibility.
3. Online shopping: E-commerce has become a popular trend, and the internet allows consumers to shop online conveniently. Online shopping platforms provide a wide range of products, secure payment options, and doorstep delivery, making it a preferred choice for many.
4. All of these: The correct answer is option D, as all of the mentioned uses - software sharing, organization promotion, and online shopping - are valid uses of the internet.
In conclusion, the internet serves various purposes, including software sharing, organization promotion, and online shopping. It has revolutionized the way we access information, conduct business, and interact with others globally.
Olympiad Test : Internet And Viruses - 1 - Question 5

______ is a program that is used to access various internet resources.

Detailed Solution for Olympiad Test : Internet And Viruses - 1 - Question 5
Answer:
The program that is used to access various internet resources is called a browser. A browser is a software application that allows users to access and view websites, search for information, and interact with web-based applications. It acts as an intermediary between the user and the internet, enabling the user to navigate through different web pages and access a wide range of online content.
Here are some key points to understand the role of a browser:
1. Definition:
- A browser is a program or software application used to access and view web pages on the internet.
- It provides a graphical user interface (GUI) that allows users to interact with websites and online content.
2. Functionality:
- Browsers interpret and display HTML (Hypertext Markup Language) files, which are the building blocks of web pages.
- They support various internet protocols, such as HTTP (Hypertext Transfer Protocol), FTP (File Transfer Protocol), and HTTPS (Hypertext Transfer Protocol Secure), to fetch and retrieve web content.
- Browsers also support additional technologies like JavaScript, CSS (Cascading Style Sheets), and plugins to enhance the user experience.
3. Features:
- Browsers provide features like bookmarks/favorites, tabbed browsing, history, and download management to simplify navigation and organization of web content.
- They support multimedia playback, enabling users to view images, videos, and listen to audio files directly within the browser.
- Browsers often have built-in search engines or search bars that allow users to search for information using popular search engines like Google, Bing, or Yahoo.
4. Popular Browsers:
- Some of the most commonly used browsers include Google Chrome, Mozilla Firefox, Microsoft Edge, Safari, and Opera.
- Each browser has its own unique features, performance, and compatibility with different operating systems.
In conclusion, a browser is a crucial program that enables users to access and interact with internet resources. It plays a vital role in facilitating web browsing, information retrieval, and online communication.
Olympiad Test : Internet And Viruses - 1 - Question 6

______ is authoring/ maintaining/ adding / updating articles to an existing blog.

Detailed Solution for Olympiad Test : Internet And Viruses - 1 - Question 6

The correct answer is B: Blogging.


Explanation:


Blogging refers to the process of authoring, maintaining, adding, and updating articles to an existing blog. It involves creating and publishing content on a blog platform, which can include text, images, videos, and other media. Bloggers typically write about specific topics or interests and regularly update their blogs with new content.


Key Points:



  • Blogging involves authoring, maintaining, adding, and updating articles to a blog.

  • It is the process of creating and publishing content on a blog platform.

  • Bloggers write about specific topics or interests.

  • New content is regularly added to the blog.


Blogging is a popular way for individuals, businesses, and organizations to share information, express opinions, and engage with their audience. It allows for interactive communication and can be used for various purposes, such as personal journals, professional portfolios, marketing, and knowledge sharing.

Olympiad Test : Internet And Viruses - 1 - Question 7

Internet ______ are like 24-hour coffee shops with people eager to communicate anytime they want.

Detailed Solution for Olympiad Test : Internet And Viruses - 1 - Question 7
Internet ______ are like 24-hour coffee shops with people eager to communicate anytime they want.
The correct answer is Chat rooms.
Explanation:
- Internet chat rooms are virtual platforms where people can engage in real-time conversations and communicate with others.
- Similar to 24-hour coffee shops, chat rooms are accessible at any time, allowing individuals to connect and interact with others from around the world.
- Chat rooms are designed for socializing, sharing information, and discussing various topics of interest.
- They are like virtual meeting places where users can engage in text-based conversations, exchange ideas, and form connections.
- People in chat rooms are often eager to communicate, just like individuals in a coffee shop who are eager to engage in conversations.
- Unlike other options mentioned such as online libraries, electronic post offices, or blogs, chat rooms emphasize real-time communication and immediate interaction between users.
- In chat rooms, individuals can join specific rooms based on their interests or engage in private conversations with selected users.
- Chat rooms provide a sense of community and enable people to connect and communicate with others who share similar interests or ideas.
- Overall, chat rooms serve as virtual spaces for communication and social interaction, similar to 24-hour coffee shops where people gather to engage in conversations.
Olympiad Test : Internet And Viruses - 1 - Question 8

______ is a program that may interrupt the normal operation of a computer.

Detailed Solution for Olympiad Test : Internet And Viruses - 1 - Question 8
Explanation:
The correct answer is C: Virus.
- A virus is a program that can interrupt the normal operation of a computer.
- It is a type of malicious software that can replicate itself and spread from one computer to another.
- Viruses can cause various types of disruptions, including slowing down the computer, corrupting files, and stealing sensitive information.
- Common sources of viruses include downloading infected files from the internet, opening malicious email attachments, or visiting compromised websites.
- Once a virus infects a computer, it can execute its intended actions, which may include damaging or disabling the system, deleting files, or stealing personal information.
- To protect against viruses, it is important to have up-to-date antivirus software installed on the computer and to practice safe browsing habits.
- Antivirus software can detect and remove viruses from the system, as well as prevent future infections.
In summary, a virus is a program that can disrupt the normal operation of a computer and cause various types of damage. It is important to have antivirus software and practice safe browsing habits to protect against viruses.
Olympiad Test : Internet And Viruses - 1 - Question 9

______ is/are phase of a virus.

Detailed Solution for Olympiad Test : Internet And Viruses - 1 - Question 9
Answer:
Introduction:
Viruses go through different phases in order to infect a host and replicate. These phases are crucial for the virus to successfully establish an infection and cause harm to the host organism. In this question, we need to identify the phase(s) of a virus.
Explanation:
The correct answer is option C: Both (a) and (b), which means that both infection and attack are phases of a virus. Let's discuss each phase in detail:
Infection:
During the infection phase, the virus enters the host organism and attaches itself to the host cells. This is usually facilitated by specific viral proteins that recognize and bind to receptors on the surface of host cells. Once attached, the virus injects its genetic material (DNA or RNA) into the host cell, hijacking the cellular machinery to replicate its own genetic material and produce viral proteins. The infection phase is essential for the virus to establish itself within the host and initiate the process of replication.
Attack:
The attack phase refers to the subsequent steps taken by the virus to cause harm to the host organism. Once inside the host cell, the replicated viral genetic material and proteins are assembled to form new virus particles. These particles can either be released from the infected host cell to infect neighboring cells or spread to other individuals through various means (e.g., respiratory droplets, bodily fluids, etc.). The attack phase is responsible for the spread of the virus within the host organism and to other potential hosts.
Conclusion:
In summary, the phases of a virus include both infection and attack. The infection phase allows the virus to enter the host cell and initiate replication, while the attack phase involves the spread of the virus within the host organism and to other individuals. Understanding these phases is crucial in developing strategies to prevent and control viral infections.
Olympiad Test : Internet And Viruses - 1 - Question 10

Which of the following statements is true for a Boot Virus?

Detailed Solution for Olympiad Test : Internet And Viruses - 1 - Question 10
Explanation:
A Boot Virus:
- Infects boot/master boot records on a hard disk.
- It typically replaces or modifies the existing boot code with its own malicious code.
- This allows the virus to execute every time the computer is booted up or restarted.
Boot Virus Activity:
- The virus is most active while a computer is booting.
- It takes advantage of the system's boot process to execute its code and infect the system.
Disk Killer:
- Disk killer is not a well-known boot virus.
- There are various types of boot viruses, and disk killer is not one of them.
Conclusion:
- The true statement for a boot virus is that it infects boot/master boot records on a hard disk.
- It is also most active during the computer's boot process.
- However, the statement about disk killer being a well-known boot virus is incorrect.
- Therefore, the correct answer is D: All of these.
Olympiad Test : Internet And Viruses - 1 - Question 11

Which of the following statements is true for a program Files virus?

Detailed Solution for Olympiad Test : Internet And Viruses - 1 - Question 11
Explanation:
The correct answer is option D: All of these.
1. Infects executable/program files: Program Files virus infects executable/program files such as .exe, .com, and .ovl files. These viruses attach themselves to these files, allowing them to spread when the infected file is executed.
2. Loaded in memory: Program Files viruses are loaded in memory as soon as the infected program executes. This means that the virus becomes active and can start causing damage or spreading to other files.
3. Sunday virus: Sunday virus is not a type of Program Files virus. It is a different type of virus that was discovered in 1989 and infects DOS-based systems.
Therefore, the correct statement is that a Program Files virus infects executable/program files, is loaded in memory when the program executes, and Sunday virus is not a type of Program Files virus.
Olympiad Test : Internet And Viruses - 1 - Question 12

To identify, prevent, quarantine and remove viruses, you need a ______ software.

Detailed Solution for Olympiad Test : Internet And Viruses - 1 - Question 12
Antivirus software: The Solution for Identifying, Preventing, Quarantining, and Removing Viruses

To effectively protect your computer system from viruses and malware, it is essential to use antivirus software. Antivirus software is specifically designed to detect, prevent, quarantine, and remove viruses and other malicious software. Here's why antivirus software is crucial:


Identification:



  • Antivirus software scans your computer system and checks for any suspicious files or activities that might indicate the presence of a virus.

  • It uses various detection methods, such as signature-based detection, heuristic analysis, and behavioral monitoring, to identify known and unknown viruses.


Prevention:



  • Antivirus software provides real-time protection by monitoring your system and blocking any attempts by viruses to infect your files or compromise your privacy.

  • It actively scans incoming files, downloads, and websites to prevent malware from getting into your system.


Quarantine:



  • If a virus is detected, antivirus software can quarantine the infected file or isolate the malicious code to prevent it from spreading further.

  • By quarantining the virus, the software ensures that it cannot harm your system or other files.


Removal:



  • Antivirus software offers the capability to remove viruses from your system once they have been identified and quarantined.

  • It can clean or delete the infected files, ensuring that your system is virus-free.


In conclusion, antivirus software is an essential tool for identifying, preventing, quarantining, and removing viruses. By regularly updating and using an antivirus program, you can significantly enhance the security of your computer system and protect your personal data.

Olympiad Test : Internet And Viruses - 1 - Question 13

To prevent virus from infecting your computer, you should ______.

Detailed Solution for Olympiad Test : Internet And Viruses - 1 - Question 13
How to prevent virus from infecting your computer:

A: Equip your PC with a licensed antivirus program:



  • Install a reputable antivirus software on your computer.

  • Keep the antivirus program up to date with the latest virus definitions.

  • Enable real-time scanning to detect and block any malicious files or activities.


B: Scan flash drives and floppy disks before copying data from them:



  • Before transferring any files from external storage devices, scan them with your antivirus software.

  • This helps to identify and eliminate any viruses or malware that may be present on the external media.


C: Not install pirated software from unknown sources on your computer:



  • Avoid downloading and installing pirated software as they often contain hidden malware.

  • Only download software from reputable sources and verify its authenticity.

  • Be cautious of suspicious websites and avoid clicking on unknown links.


D: All of these:



  • By following all of the above measures, you can significantly reduce the risk of virus infections on your computer.

  • Combining these practices provides a comprehensive approach to computer security.


It is important to note that while these steps can greatly reduce the risk of virus infections, they do not guarantee complete protection. It is always advisable to stay vigilant, keep your operating system and other software up to date, and practice safe browsing habits to further enhance your computer's security.

Olympiad Test : Internet And Viruses - 1 - Question 14

Identify the following.
It is software program.
It monitors a user’s computing habits.
It records user’s personal information.
It sends the recorded information to third parties without the user’s knowledge.

Detailed Solution for Olympiad Test : Internet And Viruses - 1 - Question 14
Answer:
Identifying the software program:
- The given software program falls under the category of malicious software.
Characteristics of the software program:
- Monitors a user's computing habits: The software program has the ability to track and monitor the user's activities on their computer.
- Records user's personal information: The program is designed to collect and record personal information about the user without their knowledge or consent.
- Sends recorded information to third parties: The collected information is then transmitted to third parties without the user's knowledge or authorization.
Identification of the software program:
- Spyware: Spyware is a type of malicious software that is specifically designed to monitor and collect information about a user's activities and transmit it to third parties without their consent.
Therefore, based on the characteristics provided, the correct identification of the software program is Spyware (option A).
Olympiad Test : Internet And Viruses - 1 - Question 15

What is the process of sending message from one person to another person via computer called?

Detailed Solution for Olympiad Test : Internet And Viruses - 1 - Question 15
The process of sending messages from one person to another person via computer is called Email.

Email:



  • Email stands for Electronic Mail.

  • It is a method of exchanging digital messages between computer users.

  • It allows individuals to send and receive messages and files over the internet.

  • Emails can contain text, images, attachments, and other types of files.

  • Emails are delivered to the recipient's email address, which acts as their unique identifier.

  • The process of sending an email involves several steps:


    • Composing the email: The sender creates the email message using an email client or webmail interface.

    • Addressing the email: The sender specifies the recipient's email address in the "To" field.

    • Adding a subject: The sender includes a brief subject line that summarizes the content of the email.

    • Writing the content: The sender writes the main body of the email, which can be formatted and styled.

    • Attaching files (optional): The sender can attach files such as documents, images, or videos to the email.

    • Sending the email: The sender clicks the "Send" button to transmit the email to the recipient's email server.

    • Receiving the email: The recipient's email server receives the email and delivers it to the recipient's inbox.

    • Accessing the email: The recipient can then access and read the email using their email client or webmail interface.



Advantages of Email:



  • Instant delivery: Emails are delivered almost instantaneously, allowing for quick communication.

  • Cost-effective: Sending emails is generally free or low-cost, making it a cost-effective method of communication.

  • Efficient organization: Emails can be organized into folders, making it easier to manage and retrieve information.

  • Global reach: Emails can be sent to anyone with an email address, regardless of their location.

  • Attachment capability: Emails allow for the attachment of files, enabling the sharing of documents, images, and more.


Conclusion:


Email is a widely used method of communication that enables individuals to send and receive messages and files over the internet. It offers various advantages such as instant delivery, cost-effectiveness, efficient organization, global reach, and attachment capability. The process of sending an email involves composing the email, addressing it, adding a subject, writing the content, attaching files if necessary, and sending it to the recipient. Once received, the recipient can access and read the email using their email client or webmail interface.

Olympiad Test : Internet And Viruses - 1 - Question 16

What does ISP stand for?

Detailed Solution for Olympiad Test : Internet And Viruses - 1 - Question 16
ISP stands for Internet Service Provider

  • Definition: An ISP is a company or organization that provides access to the Internet and other related services to individuals and businesses.

  • Role: ISPs serve as the intermediary between users and the Internet, allowing users to connect to the Internet via various technologies such as dial-up, DSL, cable, fiber optic, or wireless connections.

  • Services: ISPs offer a range of services, including:


    • Internet connectivity: Providing users with access to the Internet.

    • Email services: Offering email accounts and hosting email servers.

    • Web hosting: Hosting websites and making them accessible on the Internet.

    • Domain registration: Assisting users in registering and managing domain names.

    • Virtual private networks (VPNs): Offering secure connections for remote access to private networks.

    • Cloud services: Providing storage and computing resources over the Internet.


  • Types of ISPs: There are various types of ISPs, including:


    • Access ISPs: Provide access to the Internet for end-users.

    • Transit ISPs: Connect smaller ISPs to the Internet backbone.

    • Virtual ISPs: Resell Internet services provided by other ISPs.

    • Hosting ISPs: Specialize in web hosting services.


  • Importance: ISPs play a crucial role in enabling individuals and businesses to connect to the vast resources and services available on the Internet.


In conclusion, ISPs are essential for accessing the Internet and offer a wide range of services to facilitate connectivity and online activities.
Olympiad Test : Internet And Viruses - 1 - Question 17

E-mail has become one of the fastest messaging services. What does e-mail stand for?

Detailed Solution for Olympiad Test : Internet And Viruses - 1 - Question 17
Explanation:
The correct answer is B: Electronic Mail.
E-mail stands for Electronic Mail, which is a method of sending and receiving messages electronically over the internet or other computer networks. It is one of the most widely used forms of communication in the modern world.
Here is a detailed explanation:
1. Origin: E-mail was first developed in the 1960s and became popular in the 1990s with the widespread adoption of the internet.
2. Electronic Communication: E-mail allows users to send and receive messages electronically, using a computer or other digital devices.
3. Message Format: E-mails are composed of a header, which includes the sender and recipient's addresses, subject line, and date/time, and a body, which contains the actual message.
4. Attachments: E-mails can also include attachments such as documents, images, or videos, making it a versatile form of communication.
5. Fast and Efficient: E-mail has become one of the fastest messaging services due to its instant delivery and ability to reach recipients anywhere in the world.
6. Advantages: Some of the advantages of e-mail include convenience, cost-effectiveness, ability to send messages to multiple recipients simultaneously, and the ability to store and organize messages.
7. Security: While e-mail is generally a secure form of communication, it is important to take precautions such as using strong passwords and encryption techniques to protect sensitive information.
In conclusion, e-mail, which stands for Electronic Mail, is a widely used and efficient method of sending and receiving messages electronically, making it one of the fastest messaging services available today.
Olympiad Test : Internet And Viruses - 1 - Question 18

Which of the following is the first page of website?

Detailed Solution for Olympiad Test : Internet And Viruses - 1 - Question 18
The first page of a website is commonly referred to as the "Home page". Let's break down the answer into headings and HTML bullet points:
Explanation:
Definition:
- The home page is the main or first page of a website that serves as an entry point for visitors.
- It is usually the default page that is displayed when someone types in the website's domain name or clicks on a link to the website.
Characteristics of a Home Page:
- The home page typically contains important information about the website, such as its purpose, navigation menus, and featured content.
- It often includes a website logo or branding elements.
- The home page may have a visually appealing layout with images, text, and other media elements to capture the attention of visitors.
Importance of the Home Page:
- The home page plays a crucial role in setting the tone and providing an overview of the website's content and design.
- It helps visitors navigate through the website by providing links to different sections or pages.
- The home page should be designed to engage and retain visitors, encouraging them to explore further and find the information they are seeking.
Conclusion:
The correct answer is A: Home page. It is the first page of a website that serves as an entry point for visitors, providing important information and navigation options.
Olympiad Test : Internet And Viruses - 1 - Question 19

What is the full form of DNS?

Detailed Solution for Olympiad Test : Internet And Viruses - 1 - Question 19
Full Form of DNS: Domain Naming System
The Domain Naming System (DNS) is a hierarchical decentralized naming system that translates domain names (e.g., www.example.com) into IP addresses. It plays a critical role in the functioning of the internet by providing a way to easily remember and access websites using human-readable domain names.
Explanation:
The DNS works by maintaining a distributed database that contains mappings of domain names to IP addresses. When a user enters a domain name in a web browser, the following steps occur:
1. Domain Name Resolution: The DNS resolver on the user's computer sends a query to a DNS server to resolve the domain name into an IP address.
2. DNS Hierarchy: The DNS server, which is part of a hierarchical structure, starts by querying the root DNS server. The root DNS server then directs the query to the appropriate top-level domain (TLD) server.
3. TLD Server: The TLD server holds information about the specific top-level domain (e.g., .com, .org, .net) and directs the query to the authoritative name server for the domain.
4. Authoritative Name Server: The authoritative name server is responsible for maintaining the DNS records for the domain. It retrieves the requested IP address and sends it back to the DNS resolver.
5. Response to DNS Resolver: The DNS resolver receives the IP address and returns it to the user's computer.
6. Accessing the Website: With the IP address obtained, the user's computer can then establish a connection with the web server that hosts the website associated with the domain name.
The DNS is essential for the smooth functioning of the internet as it allows users to access websites using easy-to-remember domain names rather than having to remember complex IP addresses. It also enables various internet services, such as email delivery and network communication, by providing a way to translate domain names into IP addresses.
Olympiad Test : Internet And Viruses - 1 - Question 20

Match the following.

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