Q13

Node $\text{X}$ has a $\text{TCP}$ connection open to node $\text{Y}$. The packets from $\text{X}$ to $\text{Y}$ go through an intermediate $\text{IP}$ router $\mathrm{R}$. Ethernet switch $\mathrm{S}$ is the first switch on the network path between $\mathrm{X}$ and $\mathrm{R}$. Consider a packet sent from $\mathrm{X}$ to $\mathrm{Y}$ over this connection. Which of the following statements is/are TRUE about the destination $\text{IP}$ and $\text{MAC}$ addresses on this packet at the time it leaves $\mathrm{X}$?