Consider two hosts, A and $B,$ connected by a single link of rate $R$ bps$.$ Suppose that the two hosts are separated by meters, and suppose the propagation speed along the link is $s$ meters$/$sec$.$ Host $A$ is to send a packet of size $L$ bits to Host $B.$

$1-$ Express the propagation delay $d_{\text{p}\text{r}\text{o}\text{p}}=$

$2-$ Express the transmission delay $d_{\text{t}\text{r}\text{a}\text{n}\text{s}}=$

$3-$ Host A starts to transmit the packet at time $t=0.$ At time $t=d_{\text{t}\text{r}\text{a}\text{n}\text{s}},$ where is the last bit of the packet? $$

$4-$ Suppose $d_{\text{p}\text{r}\text{o}\text{p}}>d_{\text{t}\text{r}\text{a}\text{n}\text{s}}.$ At time $t=d_{\text{t}\text{r}\text{a}\text{n}\text{s}\text{,}}$ where is the first bit of the packet? $$

$5-$ Suppose $t=d_{\text{t}\text{r}\text{a}\text{n}\text{s}}s=2^{***}{10}^9\frac{m}{s},L=1024R=256kbps{d}_{\text{p}\text{r}\text{o}\text{p}}=d_{\text{t}\text{r}\text{a}\text{n}\text{s}\text{?}}\frac{R}{L}{d}_{\text{p}\text{r}\text{o}\text{p}}.At$ time $t=d_{\text{t}\text{r}\text{a}\text{n}\text{s}},$ where $is$ the first bit $of$ the packet? $$

$6-$ Given $s=2^{***}{10}^9\frac{m}{s},L=1024$ bits, and $R=256kbps.$ What should $bemso$ that $d_{\text{p}\text{r}\text{o}\text{p}}=d_{\text{t}\text{r}\text{a}\text{n}\text{s}\text{?}}?$

$\frac{R}{L}$ seconds

$I*\frac{m}{s}$ seconds $$

Just leaving $A$

$In$ the link

Reached $B$