UDP datagram structure in Computer Networks - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to identify the size of the UDP header in bytes.

Computer Networks

UDP header size is [1] bytes.

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A20

B8

C16

D12

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing UDP header size with IP header size.

Assuming UDP header size varies.

The UDP header is always 8 bytes long, which includes source port, destination port, length, and checksum fields.

2fill in blank

medium

Complete the code to name the first field in the UDP header.

Computer Networks

The first field in the UDP header is the [1].

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ASource Port

BDestination Port

CLength

DChecksum

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up source and destination ports.

Choosing checksum as the first field.

The first field in the UDP header is the Source Port, which identifies the sender's port number.

3fill in blank

hard

Fix the error in the UDP header field order: Source Port, Length, Destination Port, {{BLANK_1}}.

Computer Networks

The correct order is Source Port, Destination Port, Length, [1].

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AChecksum

BData

CProtocol

DHeader Length

Attempts:

3 left

💡 Hint

Common Mistakes

Placing Length after Destination Port incorrectly.

Confusing checksum with protocol field.

The UDP header fields are ordered as Source Port, Destination Port, Length, and Checksum.

4fill in blank

hard

Fill both blanks to complete the UDP header fields: {{BLANK_1}}, {{BLANK_2}}, Length, Checksum.

Computer Networks

UDP header fields start with [1] and [2], followed by Length and Checksum.

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ASource Port

BData

CDestination Port

DProtocol

Attempts:

3 left

💡 Hint

Common Mistakes

Using Data or Protocol as header fields.

Swapping Source and Destination Port order.

The UDP header starts with Source Port and Destination Port fields, then Length and Checksum.

5fill in blank

hard

Fill all three blanks to complete the UDP datagram structure: {{BLANK_1}}, {{BLANK_2}}, {{BLANK_3}}.

Computer Networks

UDP datagram consists of [1], [2], [3], and Payload.

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AHeader

BChecksum

CLength

DSource Port

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing Source Port as a separate part of the datagram.

Omitting the Length or Checksum fields.

The UDP datagram consists of the Header (including Length and Checksum fields), and the Payload data.