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
1
The process of a router choosing the best path for a packet is called:
Answer:
Routing
This is the core function of a router, and it is called routing.
2
Which network type is more suited for IoT (Internet of Things) devices?
Answer:
Wireless, for flexibility and ease of installation
The vast majority of IoT devices use wireless technologies like Wi-Fi, Bluetooth, or Zigbee to connect to the internet.
3
Poor response times can be caused by:
Answer:
Any of the above
System performance and response times can be degraded by bottlenecks in any major component, including disk I/O, CPU utilization, or memory management (paging).
4
Which model's performance can degrade if one peer has a slow internet connection?
Answer:
Peer-to-peer model
In a P2P network, you are often downloading data directly from other peers, so their connection speed can affect your download speed.
5
The network within your car that connects your phone to the car's infotainment system is a:
Answer:
PAN
This is a short-range wireless network connecting personal devices, which is the definition of a PAN.
6
How many collision domains does a 12-port switch create?
Answer:
12
Each port on a switch is its own collision domain, so a 12-port switch creates 12 collision domains.
7
What is a routing table?
Answer:
A list of IP addresses and the best path to reach them
A router uses a routing table to store information about different networks and how to reach them.
8
For online gaming, which is more important?
Answer:
Low latency
In gaming, a low latency (ping) is crucial for a responsive experience, as it reduces the delay between your actions and the game's response.
9
A network that covers a college campus is a:
Answer:
LAN
Even a large campus network is considered a LAN because it is a single, contained network under one organization's control.
10
The fundamental trade-off in network design is often between:
Answer:
All of the above
Network design involves balancing many competing factors. For example, a very high-bandwidth, low-latency connection (like dedicated fiber) is very expensive. Similarly, very high security can sometimes make a network harder to use.