Recall & Review
beginner
What is an IPv4 address?
An IPv4 address is a unique 32-bit number assigned to each device on a network to identify it and allow communication.
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beginner
How many bits are in an IPv4 address?
An IPv4 address consists of 32 bits, usually shown as four groups of 8 bits each.
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beginner
What is the common format used to write IPv4 addresses?
IPv4 addresses are written in dotted decimal format, which shows four numbers separated by dots, each number between 0 and 255.
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intermediate
What does each part of an IPv4 address represent?
Each of the four parts (called octets) represents 8 bits of the address, which together identify the network and the device on that network.
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intermediate
Why is the IPv4 address divided into network and host parts?
Dividing the address helps routers know where to send data by identifying the network first, then the specific device (host) within that network.
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How many octets are in an IPv4 address?
✗ Incorrect
An IPv4 address has 4 octets, each representing 8 bits.
What is the maximum value of each octet in an IPv4 address?
✗ Incorrect
Each octet can range from 0 to 255 because it is 8 bits long.
Which of the following is a valid IPv4 address?
✗ Incorrect
192.168.1.1 is valid; others have invalid octet values or wrong number of parts.
What does the term 'octet' mean in IPv4 addressing?
✗ Incorrect
An octet is a group of 8 bits, which is one part of the IPv4 address.
Why is the IPv4 address structure important for networking?
✗ Incorrect
IPv4 addresses identify devices and help routers send data to the right place.
Explain the structure of an IPv4 address and how it is written.
Think about how the address is split and shown in numbers.
You got /4 concepts.
Describe why IPv4 addresses are divided into network and host parts.
Consider how data finds its way to the right device.
You got /4 concepts.