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Introduction to Internet Architecture and Protocols
Computer Networks
This content provides an introduction to computer networks, internet architecture, and the TCP/IP protocol suite. It details the functions of each layer in the TCP/IP model, compares various protocols like TCP, UDP, HTTP, FTP, SMTP, and ICMP, and discusses their real-world applications.
Networking
Protocols
Internet
TCP/IP
30 Questions
Medium
Ages 12+
Mar 4, 2026
About this Study Set
This study set covers Computer Networks through
30 practice questions.
This content provides an introduction to computer networks, internet architecture, and the TCP/IP protocol suite. It details the functions of each layer in the TCP/IP model, compares various protocols like TCP, UDP, HTTP, FTP, SMTP, and ICMP, and discusses their real-world applications. Every question includes the correct answer so you can learn as you go — pick any format above to get started.
Questions & Answers
Browse all 30 questions from the
Introduction to Internet Architecture and Protocols study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
What is a computer network?
-
A
A system of interconnected computers that can share resources and data.
-
B
A single computer with internet access.
-
C
A group of routers and switches.
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D
A wired communication channel.
2
Which of the following are components of a computer network?
-
A
Nodes and Links
-
B
Servers and Clients
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C
Routers and Switches
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D
Wired and Wireless channels.
3
What does LAN stand for?
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A
Local Area Network
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B
Large Area Network
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C
Logical Access Network
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D
Limited Access Network.
4
Which of the following is NOT a benefit of computer networks?
-
A
Increased hardware costs
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B
Resource sharing
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C
Communication
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D
Access to remote data.
5
How is data transferred across the internet according to the basic working principle?
-
A
Data is broken into packets, sent, and reassembled.
-
B
Data is sent as a continuous stream.
-
C
Data is encrypted and then sent.
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D
Data is transferred directly from source to destination.
6
How many layers are in the OSI Model?
7
How many layers are in the TCP/IP Model?
8
Which layer in the TCP/IP model provides network services directly to applications?
-
A
Application Layer
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B
Transport Layer
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C
Internet Layer
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D
Link Layer.
9
Which protocol is responsible for ensuring reliable data transfer in the TCP/IP model?
10
What is the primary function of the Internet Layer in the TCP/IP model?
-
A
Packet routing across networks
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B
Providing network services to applications
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C
Ensuring reliable end-to-end communication
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D
Physical transmission of data.
11
Which layer in the TCP/IP model deals with the physical transmission of data between devices on the same network?
-
A
Link Layer
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B
Application Layer
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C
Transport Layer
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D
Internet Layer.
12
Which devices are typically responsible for the Internet Layer in the TCP/IP model?
-
A
Routers
-
B
Servers
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C
PCs
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D
Modems.
13
What protocol is used for domain name resolution in the TCP/IP suite?
-
A
DNS
-
B
HTTP
-
C
FTP
-
D
SMTP.
14
During TCP/IP data transfer, what happens at the Transport Layer?
-
A
Segmentation and sequencing via TCP/UDP
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B
Packet routing
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C
Framing and transmission
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D
Data generation.
15
What is the purpose of the 'ping' command?
-
A
To show round-trip time of packets and confirm connectivity.
-
B
To transfer files between computers.
-
C
To send emails.
-
D
To browse websites.
16
What is a network protocol?
-
A
A set of rules and conventions for communication between network devices.
-
B
A physical cable connecting devices.
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C
A type of network hardware.
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D
A software application.
17
Which of the following is an example of a communication protocol?
-
A
TCP
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B
HTTP
-
C
DNS
-
D
FTP.
18
TCP is described as being:
-
A
Connection-Oriented
-
B
Connectionless
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C
Stateless
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D
Unreliable.
19
UDP is described as being:
-
A
Connectionless
-
B
Connection-Oriented
-
C
Reliable
-
D
Flow Controlled.
20
Which protocol is primarily used for transferring web pages?
-
A
HTTP
-
B
FTP
-
C
SMTP
-
D
DNS.
21
Which protocol is used for transferring files over a network?
-
A
FTP
-
B
HTTP
-
C
SMTP
-
D
ICMP.
22
Which protocol is used for sending email between servers?
-
A
SMTP
-
B
HTTP
-
C
FTP
-
D
DNS.
23
Which protocol is used for error messages and diagnostics?
-
A
ICMP
-
B
TCP
-
C
UDP
-
D
HTTP.
24
What is a key characteristic of TCP compared to UDP?
-
A
Reliability
-
B
Speed
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C
Lower overhead
-
D
Connectionless operation.
25
What is a key characteristic of UDP compared to TCP?
-
A
Speed
-
B
Reliability
-
C
Connection-oriented operation
-
D
Flow control.
26
HTTP uses which transport layer protocol for reliable data transfer?
27
FTP uses separate channels for which two functions?
-
A
Commands and file transfer
-
B
Sending and receiving
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C
User authentication and data encryption
-
D
Request and response.
28
What is a common use case for DNS?
-
A
Resolving domain names to IP addresses
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B
Sending email
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C
Transferring files
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D
Browsing websites.
29
Which protocol operates at the network layer in the TCP/IP model and is used for diagnostics like Ping?
-
A
ICMP
-
B
TCP
-
C
UDP
-
D
HTTP.
30
How does Dropbox utilize the TCP/IP layers for its functionality?
-
A
Uses TCP for reliable file transfers and sync accuracy.
-
B
Relies on UDP for all data transfers.
-
C
Only uses the Application Layer for all operations.
-
D
Primarily uses the Link Layer for data creation.
