Computer Science - IT MCQs
Topic Notes: Computer Science - IT
<p>MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.</p>
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
121
In the context of a Uniform Resource Locator (URL), which component represents the domain name?
Answer:
microsoft.com
A domain name is the human-readable address used to identify a website on the internet. In a URL like http://www.microsoft.com, 'microsoft.com' serves as the registered domain name, distinguishing the specific site from others on the web.
122
In which year was the World Wide Web first introduced?
Answer:
1989
The World Wide Web was invented by British scientist Tim Berners-Lee in 1989 while he was working at CERN. He proposed a global hypertext project to facilitate information sharing among scientists, which eventually evolved into the modern web we use today for global communication and commerce.
123
Which mobile application is specifically designed to track and display the real-time location of family members and colleagues?
Answer:
Life360
Life360 is a dedicated location-sharing and safety application that allows users to create circles for family or work groups to monitor real-time locations. SharePoint and OneNote are productivity and collaboration tools, not location-tracking services.
124
Which markup language serves as the foundational language for creating content on the World Wide Web?
Answer:
HTML
HTML, or HyperText Markup Language, is the standard language used to create web pages. It provides the structure for web content, allowing browsers to interpret and display text, images, and other media elements correctly.
125
Which hardware component is essential for establishing an internet connection?
Answer:
Modem
A modem (modulator-demodulator) is a critical hardware device that converts digital signals from a computer into analog signals for transmission over telephone or cable lines, and vice versa. It acts as the bridge between a local network and the Internet Service Provider (ISP), enabling external connectivity for the computer.
126
Which of the following options serves as an example of connectivity in a computing environment?
Answer:
Internet
Connectivity refers to the ability of computers and devices to connect to each other and to networks. The Internet is the quintessential example of a global connectivity infrastructure that allows disparate systems to communicate and share information across vast distances.
127
How is a specific computer identified when connected to the internet?
Answer:
IP address
An Internet Protocol (IP) address is a unique numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication. It serves as the primary identifier for locating and addressing a device on the internet.
128
What does the acronym 'URL' stand for in the context of web addresses?
Answer:
Uniform Resource Locator
A Uniform Resource Locator (URL) is the address of a given unique resource on the Web. It provides a standardized way to locate and access information on the internet, specifying the protocol used and the location of the resource.
129
Besides the <b> tag, which other HTML tag is used to render text in bold?
Answer:
<strong>
The <strong> tag is used to define text with strong importance, which browsers typically render in bold. While <b> is purely stylistic, <strong> carries semantic meaning, indicating that the enclosed text is of greater importance than the surrounding content.
130
What is frequently identified as a significant challenge associated with telecommuting?
Answer:
Lack of social interaction and potential isolation.
The lack of face-to-face interaction is a major drawback of telecommuting. Working remotely can lead to feelings of isolation and disconnection from the company culture, which can negatively impact employee morale and long-term engagement with the team.