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
21
Which term describes the integration of hardware and software that enables communication and resource sharing between computing devices?
Answer:
network
A computer network is defined as a collection of interconnected computing devices that share resources and exchange data.
22
What is the full form of the telecommunications term DSL?
Answer:
Digital Subscriber Line
DSL stands for Digital Subscriber Line. It is a technology used to transmit digital data over existing telephone lines. DSL allows for high-speed internet access while simultaneously allowing the use of the telephone line for voice calls.
23
What is the formal term for the process of transferring data between locations using physical or electronic communication methods?
Answer:
Data transmission
Data transmission is the fundamental process of moving digital or analog data over a communication medium, such as copper wires, fiber optics, or wireless signals.
24
What is the specific term for a processing unit dedicated to managing network traffic and data communication tasks?
Answer:
Communications processor
A communications processor is a specialized hardware component designed to handle data transmission and network management tasks.
25
What is the name of the one-bit signal used by an asynchronous device to signify the beginning of data transmission?
Answer:
Start bit
In asynchronous serial communication, a start bit is a specific signal sent at the beginning of a data frame.
26
What term describes an instruction or mechanism that directs program control to one or more potential execution paths?
Answer:
Broadband channel
Broadband refers to high-speed data transmission where a single medium can carry multiple data channels simultaneously. In the context of networking, this capacity allows for complex routing and control of data streams.
27
How is a device categorized when it connects to a network without the use of physical cables?
Answer:
none of these
Devices that connect to a network without physical cables are referred to as wireless devices. Since the term 'wireless' is not listed among the provided options, 'none of these' is the correct choice.
28
Who is widely recognized as a significant figure in the development of computer networking?
Answer:
Ray Noorda
Ray Noorda was the founder of Novell and a pioneer in the networking industry, particularly known for his work on NetWare, which was instrumental in the early adoption of local area networks (LANs) in business environments during the 1980s.
29
What is the specific technique used to convert an analog signal into a digital bit stream?
Answer:
Pulse Code Modulation
Pulse Code Modulation (PCM) is a standard method used to digitally represent sampled analog signals.
30
What type of networking uses a modulated carrier to transmit data signals in analog form?
Answer:
Broad band networking
Broadband networking utilizes a modulated carrier signal to transmit data over a transmission medium.