$1.$ State the difference between Ethernet and ATM.

$2.$ How does switch differs from hub $?$

$3.$ Given the following IP addresses $($In Hexadecimal$)$ ;

$1.$ BC$145$F$3$A

$2.765$E$9$A$8$D

$3.$ C$8483$F$95$

$4.5$D$3$A$297$E

$5.957$B$357$E

a$)$ Identify the Class,

b$)$ the Network ID $($both in hex and binary$),$

c$)$ the Host ID $($both in hex and binary$),$

d$)$ write each address in dotted decimal notation. and in binary format. You can group $8$ bits at a time for easy reading.

$4.$ Given the following IP addresses convert to binary format. You can group the binary numbers in $8$ bits for easy reading.

$1.$ BC$145$F$3$A

$2.765$E$9$A$8$D

$3.$ C$8483$F$95$

$4.5$D$3$A$297$E

$5.957$B$357$E

$2.$ Exactly how many class A$,$ B$,$ and C networks can exist? Exactly how many hosts can a network in each class have? How many possible addresses are possible in each class? How many IP addresses are available overall?