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
31
Which infrastructure allows multiple authorized users to share hardware, software, and data resources?
Answer:
network
A computer network is a collection of interconnected devices that communicate to share resources.
32
Which wireless technology is integrated into electronic devices to facilitate short-range data exchange?
Answer:
Bluetooth
Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances.
33
What is the term for a communication network specifically designed to transmit computer data?
Answer:
Data network
A data network is a telecommunications network that allows computers to exchange data. These networks use various protocols and physical media to connect nodes, enabling the transmission of information between devices.
34
Which of the following options serves as a primary example of connectivity in computing?
Answer:
Internet
Connectivity refers to the ability of a computer system or device to connect to other systems or networks. The Internet is the global system of interconnected computer networks that provides the most prominent example of digital connectivity.
35
In which communication mode can data be transmitted and received simultaneously?
Answer:
Full-duplex
Full-duplex communication allows data to flow in both directions across a communication channel at the same time.
36
What are the common communication speeds supported by standard Ethernet LAN technologies?
Answer:
Both A and B
Ethernet technology has evolved significantly over time. Standard Ethernet originally operated at 10 Mbps, while Fast Ethernet introduced speeds of 100 Mbps.
37
How does a modem function during the data transmission process?
Answer:
A digital signal changes some characteristic of a carrier wave
A modem (modulator-demodulator) converts digital data from a computer into analog signals suitable for transmission over telephone or cable lines through a process called modulation.
38
Which hardware component is most frequently configured as a shared resource within a local area network?
Answer:
Printers
Printers are the most common shared resources in network environments.
39
Fourth-generation (4G) mobile technology provides advanced capabilities for transferring which types of data, including high-speed internet and video conferencing?
Answer:
voice and non-voice
4G technology is designed to support high-speed data transfer, enabling both voice communications and non-voice data services.
40
What term describes the volume of data that can be transmitted over a network connection within a specific timeframe?
Answer:
Bandwidth
Bandwidth refers to the maximum rate of data transfer across a given path. It measures how much information can be sent over a network connection in a set amount of time, usually expressed in bits per second.