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
1
. MODEM stands for.......____,.....,.
Answer:
4
The source answer is option C (4). Review the stem and options, then update the correct answer in Question Bank if the source key is wrong.
2
A proxy server is used fo·r which of the following:
Answer:
To .· • provide . • security • against unauthorized users . · ,
The source answer is option A (To .· • provide . • security • against unauthorized users . · ,). Review the stem and options, then update the correct answer in Question Bank if the source key is wrong.
3
Which process involves converting digital signals into analog signals to facilitate transmission over communication channels?
Answer:
A_ II <?f these.
The process of converting digital signals to analog is known as modulation. This is performed by a modem (modulator-demodulator).
4
Which communication processor is responsible for receiving messages and routing them to the appropriate destination?
Answer:
Message switch’
A message switch is a network device or software component that receives data packets or messages, analyzes the destination information, and forwards them to the correct network node or recipient, ensuring efficient communication across a network.
5
On which device does an RDP client typically run?
Answer:
Hosts¥
The RDP client is the software application that allows a user to connect to a remote computer. It is typically installed on a host machine, such as a desktop or laptop, which the user utilizes to initiate the remote session.
6
The most common type of storage devices are---------?
Answer:
optical
Manual review required: automated paraphrasing or enrichment failed for this item after retries. The original answer key and options were preserved.
7
Which hardware component is primarily used to connect a computer to the Internet?
Answer:
Modem card”
A modem (modulator-demodulator) is the hardware device that converts digital data from a computer into an analog signal for transmission over telephone or cable lines, and vice versa, enabling internet connectivity.
8
Which combination of hardware and software is used to connect devices that operate on different native protocols?
Answer:
Gateways”
A gateway is a network node that acts as an entrance to another network. It is specifically designed to translate data between different network protocols, allowing devices with incompatible communication standards to exchange information effectively.
9
Which networking device is used to connect two networks of the same type?
Answer:
Bridge
A network bridge is a device that connects two or more network segments together. It operates at the Data Link Layer (Layer 2) of the OSI model and is specifically designed to connect networks that use the same protocol.
10
Which standard interface is commonly used to connect serial devices to a hub or computer?
Answer:
RS 232 serial
The RS-232 standard is a widely recognized serial communication protocol used for connecting data terminal equipment to data communication equipment, such as hubs or modems, facilitating reliable serial data transmission.