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
11
Which communication protocol is the primary method used by the internet for data exchange?
Answer:
TCP/IP
TCP/IP, which stands for Transmission Control Protocol/Internet Protocol, is the foundational suite of communication protocols used to interconnect network devices on the internet. It provides end-to-end data communication specifying how data should be packetized, addressed, transmitted, routed, and received.
12
In Go-Back-N ARQ, if frames 4, 5, and 6 are received successfully, the receiver may send an ACK numbered:
Answer:
7
In Go-Back-N, the acknowledgment number indicates the sequence number of the next frame the receiver expects to receive.
13
In Bluetooth, which layer corresponds to the MAC sublayer in LANs?
Answer:
Baseband
The Baseband layer in Bluetooth manages physical channels and links, performing functions similar to the MAC sublayer.
14
In Go-Back-N ARQ with a window size of 63, the sequence number range is:
Answer:
0 to 63
With a window size of N, the sequence numbers typically range from 0 to N-1.
15
Software-based monitors for data communications include:
Answer:
Telnet
Telnet is a software tool for monitoring and managing data communications.
16
TCP/IP is a \_\_-layer hierarchical protocol suite developed \_\_ the OSI model.
Answer:
Five-layer; before
The TCP/IP model is typically described with four or five layers and its development predates the formal seven-layer OSI model.
17
IEEE’s wireless LAN standard covering physical and data link layers is:
Answer:
IEEE 802.11
The IEEE 802.11 family of standards defines the protocols for wireless local area networks (Wi-Fi).
18
Select the incorrect statement.
Answer:
RTS/CTS is used to signal ringing status at the terminal.
RTS/CTS is for data transmission readiness, not for indicating ringing.
19
In CSMA/CA, RTS and CTS frames \_\_ solve the hidden station problem and \_\_ solve the exposed station problem.
Answer:
Can; cannot
Request to Send (RTS) and Clear to Send (CTS) frames reserve the medium to prevent collisions from hidden stations, but they do not solve the exposed station problem.
20
What is the full form of FTP in computer networking?
Answer:
File Transfer Protocol
FTP stands for File Transfer Protocol. It is a standard network protocol used for the transfer of computer files between a client and server on a computer network.