CNT Final Exam with Accurate
Solutions
What is is called when you put segments into packets, and packets into frames and vica
verca? - ANS-Encapsulation
What is the 12-digit hexadecimal unique address burned into each NIC called? - ANS-
MAC address.
What type on -AN (LAN, WLAN, WAN, etc) would be used to connect an Oregon office
to an office in Arizona? - ANS-WAN
Will a server-based environment cost more or less than a peer-to-peer network? - ANS-
Severs will cost more
What part of the frame does a switch use to populate it's switching table? - ANS-source
MAC addresses
What port(s) will a hub forward frames out of? - ANS-All ports
What is the difference between a broadcast and a unicast frame? - ANS-Unicast only
sends the data to one receiver, but broadcast sends the same data to all receivers
connected in one LAN
How does a switch handle a frame with a dest. MAC address that it does not "know"? -
ANS-Forwards it to all ports
What are the default subnet masks for each class and how many hosts will each of
these default SMs support? - ANS-Class A default subnet 255.0. 0.0 with 16777214
hosts
Class B default subnet 255.255. 0.0 with 65,534 hosts
Class C default subnet 255.255. 255.0 with 256 hosts
Why do we subtract 2 from the group size to get the number of supported hosts? - ANS-
The first part of an IP address is used as a network address, the last part as a host
address
What layer is in charge of setting up and establishing a communication session between
a server and a client? (not transport) - ANS-Session layer
Solutions
What is is called when you put segments into packets, and packets into frames and vica
verca? - ANS-Encapsulation
What is the 12-digit hexadecimal unique address burned into each NIC called? - ANS-
MAC address.
What type on -AN (LAN, WLAN, WAN, etc) would be used to connect an Oregon office
to an office in Arizona? - ANS-WAN
Will a server-based environment cost more or less than a peer-to-peer network? - ANS-
Severs will cost more
What part of the frame does a switch use to populate it's switching table? - ANS-source
MAC addresses
What port(s) will a hub forward frames out of? - ANS-All ports
What is the difference between a broadcast and a unicast frame? - ANS-Unicast only
sends the data to one receiver, but broadcast sends the same data to all receivers
connected in one LAN
How does a switch handle a frame with a dest. MAC address that it does not "know"? -
ANS-Forwards it to all ports
What are the default subnet masks for each class and how many hosts will each of
these default SMs support? - ANS-Class A default subnet 255.0. 0.0 with 16777214
hosts
Class B default subnet 255.255. 0.0 with 65,534 hosts
Class C default subnet 255.255. 255.0 with 256 hosts
Why do we subtract 2 from the group size to get the number of supported hosts? - ANS-
The first part of an IP address is used as a network address, the last part as a host
address
What layer is in charge of setting up and establishing a communication session between
a server and a client? (not transport) - ANS-Session layer
