Computer Science/IT MCQs
Topic Notes: Computer Science/IT
MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.
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
181
In a home network, the device provided by your ISP that connects to the internet is a:
Answer:
Modem
A modem (modulator-demodulator) is the device that converts the signal from your ISP into a format that your computer can understand.
182
Which device works in full-duplex mode, allowing devices to send and receive data simultaneously?
Answer:
Switch
Switches operate in full-duplex mode, which means each port can send and receive data at the same time, eliminating collisions.
183
Communication channels that send data in both directions, but not at once, are operating in:
Answer:
Half duplex mode
Half duplex allows data in both directions, but only one direction at a time.
184
A network that connects devices within a city is known as a:
Answer:
MAN
A Metropolitan Area Network (MAN) is a computer network that interconnects users with computer resources in a geographic area or region larger than that covered by even a large local area network (LAN) but smaller than the area covered by a wide area network (WAN).
185
In which scenario would a wired network be the only option?
Answer:
In an area with a lot of radio interference
In environments with high levels of electromagnetic interference, a wireless network would be unreliable, making a shielded wired network the better choice.
186
When you print a document in a large office, your computer is the:
Answer:
Client
Your computer (the client) sends the print job to a central print server.
187
Which of the following is an advantage of a LAN?
Answer:
It has high bandwidth.
LANs provide high bandwidth, which means they can transfer a lot of data quickly over a short distance.
188
Which device connects multiple networks together?
Answer:
Router
A router is a networking device that forwards data packets between different computer networks.
189
A device that forwards data packets along networks is a:
Answer:
Router
This is another way of describing the function of a router.
190
A network is termed as ______ when it allows easy user expansion.
Answer:
Scalable
Scalability refers to a network's ability to grow by adding more users or devices with minimal hassle.