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
141
Which application is most sensitive to jitter?
Answer:
Voice over IP (VoIP)
For real-time conversations like a phone call, inconsistent packet delays (jitter) can cause the audio to sound choppy and distorted.
142
Which approach is used to send data via a serial link?
Answer:
Both B and C
Serial links can operate in simplex, half-duplex, or full-duplex modes.
143
Which network type is most likely to use satellite communication?
Answer:
WAN
WANs use a variety of long-distance communication technologies, including satellite links, to connect remote locations.
144
Which model is easier to set up for a small number of computers?
Answer:
Peer-to-peer model
P2P networks are simpler to set up as they don't require a dedicated server and specialized network operating system.
145
If a router's buffer is full and a new packet arrives, what happens?
Answer:
The packet is dropped (packet loss).
This is a common cause of packet loss during periods of network congestion.
146
Which network type is defined by its scale?
Answer:
All of the above
LAN, WAN, and MAN are all primarily defined and distinguished by the geographical scale they cover.
147
Which network type is more prone to signal degradation over distance?
Answer:
Both b and c
Both copper cables and wireless signals lose strength over distance, although fiber optic cables are much less susceptible to this.
148
\_\_\_ broadcast radio waves that can be received by anyone with the proper configuration.
Answer:
Wireless networks
Wireless networks transmit data using radio waves, which can be picked up by any compatible device within range.
149
What is the role of a server administrator?
Answer:
To manage the server and the network
In a client-server model, a network administrator is needed to manage the server, user accounts, security, and backups.
150
Which type of network is most reliant on phone lines?
Answer:
WAN
Wide Area Networks often utilize telephone infrastructures for long-distance connectivity. [cite: 259, 260]