APNIC Academy / IPv6 Header Format Quiz

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Question 1 of 10

1. Question
What is the length of an IPv6 packet header?
- 40 bytes, but can be variable
- 128 bits
- 40 octets
- 20 bytes
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Question 2 of 10

2. Question
Which of the following correctly lists different field types in an IPv6 header, as specified in RFC8200?
- Version, TTL, extension header
- Flow label, traffic class, source address
- Hop limit, checksum, payload length
- Options, destination address, next header
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Question 3 of 10

3. Question
In RFC8200, the IPv6 header comprises of which of the following fields?
- Version
- Traffic Class
- Identification
- Destination Address
- Options
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Question 4 of 10

4. Question
Please match the fields on the left with the length on the right.
Sort elements
- 20-bit
- 4-bit
- 128-bit
- 8-bit
- Flow Label
- Version
- Source Address
- Hop-limit
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Question 5 of 10

5. Question
Which of the following statements is correct?
- The value of next header is the length of the header which immediately follows the IPv6 header
- The value of next header is the type of the header which immediately follows the IPv6 header
- The value of next header is the checksum of the header which immediately follows the IPv6 header
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Question 6 of 10

6. Question
Refer to the topology above. If there is an IPv6 packet arriving at Router1 with a hop limit value 56, and the destination is Router5 – what is the value of the hop limit when the packet arrives at Router3?
- 54
- 55
- 2
- 1
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Question 7 of 10

7. Question
When a router receives an IPv6 packet, after checking the routing table, before it sends out the IPv6 packet, it will increase the value of hop limit in the IPv6 packet header.
- True
- False
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Question 8 of 10

8. Question
Inspect the following IPv6 packet from the following link and answer the following question.

View Packet Capture

After analyzing this IPv6 packet, which of the following statements is correct?
- The payload is 16 bytes (or octets) and the next header value is 58.
- The payload is 32 bytes (or octets) and the next header value is 60.
- The payload is 128 bytes (or octets) and the next header value is 30.
- The payload is 40 bytes (or octets) and the next header value is 20.
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Question 9 of 10

9. Question
Please examine the following packet from the link.

View Packet Capture

After analyzing the packet, is this an IPv6 Packet?
- True
- False
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Question 10 of 10

10. Question
Which of the following statements are NOT correct?
- Traffic class is used to classify traffic into different classes
- Next header field is used to locate the next router
- Flow label is used to control the flow path by swapping labels
- The maximum value of Hop Limit is 255
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