INTRODUCTION
PROTOCOL LAYERING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -IPv4 and IPv6 use the same packet format. TCP uses a four-step process called a four-way handshake to establish a TCP connection. The cost of upgrading infrastructure has been a major factor in the slow adoption of IPv6. In general, a Layer 3 or Layer 4 switch is still optimized for fast Layer 2 data handling.
Detailed explanation-2: -UDP is often described as connectionless or “best-effort delivery” because it does not establish a connection before sending, it does not sequence packets before sending, and it does not provide error control through retransmission.
Detailed explanation-3: -With an IPv6 header, it has a field called Hop Limit that acts similarly to TTL.
Detailed explanation-4: -Hop limit. Known as time to live (TTL) in IPv4, and hop limit in IPv6, this field specifies a limit on the number of hops a packet is allowed before being discarded. Routers modify IP packets as they are forwarded, decrementing the respective TTL or hop limit fields.