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WorksheetsWeek1 MC
Total questions: 46
Worksheet time: 23mins
What are network protocols?
Rules devices follow to communicate
Hardware parts inside computers
Pictures sent over the internet
Passwords for Wi‑Fi
What do network protocols define?
How devices communicate and how messages are formatted
Which apps are fun to use
Where to store music files
How to draw a picture
What happens during message formatting and encapsulation when data is sent across a network?
Extra header information is added along with the data
The data is erased
The computer turns off
Only pictures can be sent
List all layers of the TCP/IP model.
Application, Transport, Internet, Network access
Input, Output, Save, Print
Home, School, Work, Play
Start, Middle, End, Stop
What is the role of the TCP/IP model?
It organizes communication into layers like application, transport, internet, and network access
It is a drawing app
It is a music player
It is a game
What is a benefit of using a layered model?
Different technologies can work together and changes in one layer don’t break others
It makes computers heavier
It only works with one brand
It stops all errors forever
What do protocol data units contain at each layer?
Data, segment, packet, frame, bits
Songs, pictures, games, books
Mouse, keyboard, screen, cable
Red, blue, green, yellow
Place the PDUs in correct order as data moves from the sender to the network cable.
Frame, segment, bits, packet, data
Data, segment, packet, frame, bits
Bits, frame, packet, segment, data
Packet, data, bits, frame, segment
What is the purpose of a reference model?
To describe generic networking processes so we understand how networks operate
To choose favorite colors
To print homework
To clean screens
What is the difference between a protocol and a reference model?
Protocol is an actual implementation; reference model is a conceptual description
Protocol is a picture; reference model is music
Protocol is a game; reference model is a toy
Protocol is hardware; reference model is candy
Which OSI layers are combined into the TCP/IP application layer?
Application, presentation, and session
Physical and data link
Network and transport
Only the session layer
Which OSI layer corresponds to the TCP/IP internet layer?
Network layer
Physical layer
Presentation layer
Session layer
Which OSI layer handles data formatting and encryption?
Presentation layer
Physical layer
Network layer
Transport layer
Which TCP/IP layer corresponds to the OSI data link and physical layers?
Network access layer
Application layer
Internet layer
Transport layer
Which layer is responsible for end‑to‑end delivery and reliability?
Transport layer
Physical layer
Presentation layer
Session layer
Which are examples of protocols at the TCP/IP application layer?
HTTP
DNS
DHCP
FTP
Why do networking models use layers?
To simplify design, troubleshooting, and learning, and to allow different technologies to work together
To make screens brighter
To slow computers down
To store games
What type of data does the physical layer accept from the data link layer when sending data?
A frame
An email
A photo
A password
What process converts a frame into a form suitable for transmission over the media?
Encoding
Downloading
Printing
Painting
What is meant by signaling in the physical layer?
Converting bits into signals for transmission over the medium
Writing with a pen
Making loud sounds
Saving a file
In what form is data transmitted over the physical medium?
Binary bits as signals
Paper letters
Stick drawings
Spoken words
What does the physical layer receive during the data receiving process?
A signal
A song
A sticker
A picture frame
What process converts a received signal back into a sequence of bits?
Decoding
Uploading
Coloring
Resetting
After decoding, what does the physical layer pass to the data link layer?
A frame
A cable
A keyboard
A battery
Why is encoding necessary before transmission?
To convert data into signals that can travel over the physical medium
To make the screen colorful
To save battery
To delete old files
What is the role of the physical media in data transmission?
To carry signals between devices
To play music
To show movies
To write notes
What is throughput?
The actual transmission rate over a given time
The number of pictures on a screen
The size of a computer
The color of a cable
How is throughput different from bandwidth?
Bandwidth is theoretical capacity; throughput is actual speed
Bandwidth is slower than walking; throughput is faster
Bandwidth is a picture; throughput is a sound
Bandwidth is a toy; throughput is a game
What factors can affect throughput?
Network congestion, errors, and overhead
Favorite colors
Number of stickers
Day of the week
What is goodput?
The transmission rate of usable data
A fun story
A kind of computer
A type of cable
Why is goodput usually lower than throughput?
Overhead and retransmissions are excluded
Because it is measured at night
Because the cable is blue
Because the mouse is slow
Which is higher: throughput or goodput?
Throughput
Goodput
They are always equal
Neither exists
How many layers are in the TCP/IP model?
Four
Three
Five
Two
Which TCP/IP layer represents data to the user?
Application layer
Network access layer
Internet layer
Transport layer
What is the main function of the transport layer?
Preparing data for network transmission
Displaying photos
Charging the battery
Printing documents
Which TCP/IP layer determines the best routing path?
Internet layer
Application layer
Network access layer
Physical layer
What does the network access layer control?
Hardware and media components
Songs and stories
Passwords and names
Games and puzzles
Which TCP/IP layer is closest to the physical network hardware?
Network access layer
Application layer
Internet layer
Transport layer
What is the purpose of the TCP/IP model?
To define how data is communicated across a network using layered protocols
To teach drawing
To play music
To choose colors
What is bandwidth in the physical layer?
The maximum capacity of a medium to carry data
The number of computers in a room
The color of the wire
The weight of a mouse
What does bandwidth describe about a transmission medium?
How much data it can theoretically carry
How loud it is
How long it is
How shiny it looks
Is bandwidth a practical or theoretical measure?
Theoretical
Practical always
Only practical at home
Neither practical nor theoretical
Which layer is responsible for bandwidth considerations?
Physical layer
Application layer
Transport layer
Internet layer
Does bandwidth refer to data speed or data capacity?
Data capacity
Data speed only
Screen brightness
Computer size
What does higher bandwidth indicate about a medium?
It can carry more data
It is heavier
It is more colorful
It is louder
Is bandwidth related to the physical medium or software?
Physical medium
Software
Neither
Only apps
