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
11
To which IP address class does the subnet mask 255.255.0.0 belong?
Answer:
Class BY
In the context of classful networking, Class B addresses use a default subnet mask of 255.255.0.0. This mask indicates that the first two octets are reserved for the network portion, while the remaining two octets are available for host addressing.
12
What is the definition of Baud, the unit used to measure data transmission speed?
Answer:
1 bit per second”
Baud rate represents the number of signal units or symbols transmitted per second over a communication channel. In simple digital signaling, one baud is equivalent to one bit per second.
13
Which network architecture was originally developed by IBM?
Answer:
System Network Architecture”
Systems Network Architecture (SNA) is a proprietary networking architecture created by IBM in 1974.
14
Data is transmitted block by block in
Answer:
Synchronous modev
The source answer is option B (Synchronous modev). Review the stem and options, then update the correct answer in Question Bank if the source key is wrong.
15
What is the typical bandwidth requirement for transmitting human voice signals?
Answer:
100000 to 200000”
Bandwidth refers to the range of frequencies within a given band that is used for transmitting a signal. Human voice transmission requires specific frequency ranges to maintain clarity and intelligibility during communication.
16
Which category of transmission media includes coaxial and fiber-optic cables?
Answer:
GuidedY
Guided media, also known as wired or bounded media, refers to physical paths along which signals are directed, such as twisted-pair, coaxial, and fiber-optic cables. These provide a physical conduit for data transmission.
17
Which type of network is the 810S standard primarily associated with?
Answer:
WAN
The 810S standard is historically associated with Wide Area Network (WAN) technologies.
18
Which class of IP addresses is typically assigned to smaller organizations?
Answer:
Class CY
Class C IP addresses are designed for small networks. They provide a large number of network IDs but a limited number of host IDs per network (up to 254), making them ideal for small organizations that do not require thousands of internal IP addresses.
19
How is a computer uniquely identified when connected to a network?
Answer:
IP Address
An IP address (Internet Protocol address) is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication.
20
What is the definition of latency time in a networking context?
Answer:
Email server"'
Latency refers to the time delay between a request and the response.