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
61
Which term describes a network architecture that integrates both client/server and peer-to-peer models?
Answer:
Hybrid
A hybrid network combines different types of network architectures, such as client/server and peer-to-peer, to leverage the strengths of both. This allows for centralized management of resources while maintaining the flexibility of direct peer communication between workstations, making it a versatile solution for complex organizational environments.
62
Which network classification is specifically designed to cover a limited geographic area, such as a single office or building?
Answer:
LAN
A Local Area Network (LAN) is a computer network that interconnects computers within a limited area such as a residence, school, laboratory, university campus, or office building. It is characterized by high data transfer speeds and is typically owned and managed by a single person or organization.
63
Which of the following is considered the fastest communication mode?
Answer:
Full-duplex
Full-duplex is considered the most efficient and fastest mode because it allows simultaneous bidirectional transmission, maximizing the utilization of the communication channel compared to simplex or half-duplex modes which have inherent delays.
64
What type of signals are traditionally transmitted through standard telephone lines?
Answer:
Analog signals
Traditional telephone lines were originally designed to carry voice communications, which are represented as continuous, fluctuating electrical waves known as analog signals. While modern networks use digital technology, the legacy infrastructure is fundamentally based on analog transmission.
65
In the context of wave physics and signal processing, what term describes the maximum height of a signal from its equilibrium position?
Answer:
Amplitude
Amplitude refers to the peak value or the maximum displacement of a wave from its central or equilibrium position. In signal processing, it represents the strength or intensity of the signal, which is a fundamental characteristic of wave propagation.
66
Which type of network architecture is primarily utilized by cellular mobile communication systems?
Answer:
WAN
Cellular mobile systems are classified as Wide Area Networks (WANs) because they cover large geographical areas, such as cities, countries, or even continents, by connecting multiple base stations and switching centers to facilitate long-distance communication.
67
On which type of device does the Remote Desktop Protocol (RDP) client typically operate?
Answer:
Clients
The RDP client is the software application installed on the user's local device (the client) that initiates a connection to a remote server, enabling the user to view and interact with the remote desktop interface.
68
What is the typical maximum data transmission capacity of Shielded Twisted Pair (STP) cabling?
Answer:
100 mbps
Shielded Twisted Pair (STP) cabling is designed to reduce electromagnetic interference. While modern standards have evolved, historically, standard STP implementations were widely recognized for supporting data rates up to 100 Mbps in common network configurations of that era.
69
Identify the item that does not belong in the following list of communication technologies.
Answer:
Microwaves
Coaxial cable, optical fiber, and twisted pair wire are all examples of guided transmission media, meaning they use physical cables to transmit data. In contrast, microwaves are a form of unguided or wireless transmission media that propagate signals through the air or space. Therefore, microwaves are the odd one out in this group.
70
Which communication mode allows for the transmission of information in only one direction?
Answer:
Simplex
Simplex mode is a communication channel that sends information in only one direction. The sender can transmit, but the receiver cannot respond, similar to a radio broadcast or a television signal.