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What is in the layer 3 header?

Updated: 10/3/2023
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10y ago

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destination host logical address

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14y ago
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13y ago

destination host logical address

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Q: What is in the layer 3 header?
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What protocols at other layers of the OSI model does ping use?

Layer 3 of the OSI model. An ICMP header follows the IP header of the IP packet.


What header information does a router change?

the Layer 2 source and destination address


Which OSI layer header contains the address of a destination host that is on another?

Network Layer


When creating a packet how does the network layer determine the size of the packet?

The Network layer (Layer 3, typically IP) will receive a segment from the Transport layer (Layer 4, typically TCP or UDP), and will add its own header to it to create a packet. The size of the packet will thus always be the size of the segment plus the Network layer header, the same as when the next layer down (the Data Link layer, layer 2, typically Ethernet) encapsulates the packet into a frame for transmission.


How many fields are there in IPv4 header?

UDP is a Transport layer protocol or fourth layer protocol. UDP is a connection less protocol used in transport layer. UDP header have four fields in total .


Which OSI layer uses the header information to reassemble the data segments into streams?

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destination host address


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The destination host address


What is found on a datalink layer header?

The data link layer header contains the destination and source of information of the original frame and device sending information. You will also find that it contains the information of the device to receive it.


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Port number is 16bits what is the minimum header size of a transport layer?

8