Imagine a network with two routers that are connected with a point-to-point HDLC serial link.Each router has an Ethernet Lan, with PC1 Connecting to Router1 and PC2 connecting with Router2. When PC1 sends data to PC2, which of the following is true?Question 7Select one:Router1 removes the Ethernet, IP, and TCP headers and rebuilds the appropriate headers before forwarding the packet to Router2.Router1 encapsulates the Ethernet frame inside an HDLC header and sends the frame to Router2, which extracts the Ethernet frame for forwarding to PC2.Router1 strips the Ethernet header and trailer off the frame received from PC1, which is exactly re-created by Router2 before forwarding data to PC2.Router1 strips the Ethernet header and trailer off the frame received from PC1, never to be used again.
Question
Imagine a network with two routers that are connected with a point-to-point HDLC serial link.Each router has an Ethernet Lan, with PC1 Connecting to Router1 and PC2 connecting with Router2. When PC1 sends data to PC2, which of the following is true?Question 7Select one:Router1 removes the Ethernet, IP, and TCP headers and rebuilds the appropriate headers before forwarding the packet to Router2.Router1 encapsulates the Ethernet frame inside an HDLC header and sends the frame to Router2, which extracts the Ethernet frame for forwarding to PC2.Router1 strips the Ethernet header and trailer off the frame received from PC1, which is exactly re-created by Router2 before forwarding data to PC2.Router1 strips the Ethernet header and trailer off the frame received from PC1, never to be used again.
Solution
The correct answer is: Router1 strips the Ethernet header and trailer off the frame received from PC1, which is exactly re-created by Router2 before forwarding data to PC2.
Here's the step-by-step explanation:
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PC1 sends data to Router1. This data is encapsulated in an Ethernet frame because it's being sent over an Ethernet LAN.
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Router1 receives the Ethernet frame. It then strips off the Ethernet header and trailer because the data is about to be sent over a different type of network (a point-to-point HDLC serial link).
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Router1 encapsulates the data in an HDLC frame and sends it to Router2 over the point-to-point HDLC serial link.
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Router2 receives the HDLC frame. It then strips off the HDLC header and trailer because the data is about to be sent over a different type of network (an Ethernet LAN).
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Router2 encapsulates the data in an Ethernet frame
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