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
6141
What is latency?
Answer:
The delay in data transmission from source to destination
Latency, also known as ping, is the time it takes for a single bit of data to get from one point to another. It's like the travel time on a highway.
6142
Which model is the basis for most of the services you use on the internet?
Answer:
Client-server model
The vast majority of internet services, including websites, email, streaming video, and online banking, use the client-server model.
6143
Which model typically has higher ongoing maintenance costs?
Answer:
Client-server model
The client-server model requires a skilled administrator to maintain the server and network, which adds to the cost.
6144
What is the medium of transmission for a wired network?
Answer:
Physical cables
Wired networks use physical media like copper wires or fiber optic cables to transmit data.
6145
Which model is easier to manage and administer?
Answer:
Client-server model
Centralized administration makes it much easier to manage user accounts, permissions, and security policies.
6146
Bluetooth is an example of which type of network?
Answer:
PAN
A Personal Area Network (PAN) is a computer network for interconnecting electronic devices within an individual person's workspace. Bluetooth is a common technology used for PANs.
6147
Which device lets you share your internet connection with multiple computers at home?
Answer:
Router
A home router is designed to take a single internet connection and share it among multiple devices.
6148
What does LAN stand for?
Answer:
Local Area Network
LAN stands for Local Area Network, which is a network that is limited to a small geographical area such as a home, school, or office building.
6149
Which network type is more affected by physical obstructions like walls?
Answer:
Wireless network
The signal strength of a wireless network can be significantly weakened by walls, floors, and other physical barriers.
6150
What communication mode supports two-way traffic, one direction at a time?
Answer:
Half duplex
Half duplex allows communication both ways, but not simultaneously.