$1-$ How many bits are there in a MAC address?

a$.8$

b$.16$

c$.24$

d$.48$

e$.64$

$2-$ What is the significance of IP address $255\mathrm{.}255\mathrm{.}255\mathrm{.}255?$

a$.$ It is a regular Class E address

b$.$ It is an APIPA address

c$.$ It is the loopback address

d$.$ It is the broadcast address

e$.$ It is a regular Class C address

$3-$ What is the range of Well Known network ports?

a$.0$ to $1023$

b$.0$ to $127$

c$.0-64$

d$.0-80$

e$.0-512$

$4-$ The Data Link layer of the OSI model deals with:

a$.$ Segments

b$.$ Frames

c$.$ Packets

d$.$ Datagrams

e$.$ Bits on the transmission medium

$5-$ What is the function of the source port field in the TCP header?

a$.$ To identify the process to be used at the destination

b$.$ To identify the switch port from which the TCP segment came

c$.$ To identify the process that should be referenced in the return segment

d$.$ to identify the switch port to which the TCP segment should go at the destination

e$.$ None of the above