ITN 100 ACTUAL FINALS QUESTIONS AND ANSWERS
SET A+
✔✔Carrier Sense - ✔✔A device "listens" to determine if another computer is
transmitting
✔✔Multiple Access - ✔✔Many devices have access to transmit on the network medium
✔✔Collision Detection - ✔✔-Collisions occur when multiple devices transmit
simultaneously
-If a collision is detected, wait a random amount of time and resend
What is this?
✔✔2.4 GHz range - ✔✔-2.412-2.462 Ghz
-3 non-overlapping channels
What is this?
✔✔5 GHz range - ✔✔-5.180-5.320 and 5.745-5.825 Ghz
-12 non-overlapping channels
What is this?
✔✔Identify bottlenecks - ✔✔How can we improve throughput, the total data transmitted
in a given period of time?
_______________
Servers
, Clients
Networking devices
Circuits
Demand
✔✔Core Layer - ✔✔The _________ is the part of the backbone that connects the
different backbones together.
✔✔Routed Backbones - ✔✔_________ move packets along the backbone based on
their network layer address.
✔✔Rack - ✔✔With a switched backbone network, the equipment is usually placed in a
______.
✔✔False - ✔✔Layer-3 switches switch messages based on their data link layer
address.
True or False
✔✔False - ✔✔A VLAN network assigns computers to LAN segments by hardware.
True or False
✔✔True - ✔✔The distribution layer of a backbone connects LANs together.
True or False
✔✔there are many more networking devices in a switched backbone network -
✔✔Which of the following is not true about switched backbones?
performance is improved over traditional (bridged or routed) backbone networks
each connection into the switch is a separate point-to-point circuit which supports
simultaneous access by the LANs connected to the switch
there are many more networking devices in a switched backbone network
if the switch fails, so does the entire backbone network
the backbone essentially exists in the switch; there is no backbone cable
SET A+
✔✔Carrier Sense - ✔✔A device "listens" to determine if another computer is
transmitting
✔✔Multiple Access - ✔✔Many devices have access to transmit on the network medium
✔✔Collision Detection - ✔✔-Collisions occur when multiple devices transmit
simultaneously
-If a collision is detected, wait a random amount of time and resend
What is this?
✔✔2.4 GHz range - ✔✔-2.412-2.462 Ghz
-3 non-overlapping channels
What is this?
✔✔5 GHz range - ✔✔-5.180-5.320 and 5.745-5.825 Ghz
-12 non-overlapping channels
What is this?
✔✔Identify bottlenecks - ✔✔How can we improve throughput, the total data transmitted
in a given period of time?
_______________
Servers
, Clients
Networking devices
Circuits
Demand
✔✔Core Layer - ✔✔The _________ is the part of the backbone that connects the
different backbones together.
✔✔Routed Backbones - ✔✔_________ move packets along the backbone based on
their network layer address.
✔✔Rack - ✔✔With a switched backbone network, the equipment is usually placed in a
______.
✔✔False - ✔✔Layer-3 switches switch messages based on their data link layer
address.
True or False
✔✔False - ✔✔A VLAN network assigns computers to LAN segments by hardware.
True or False
✔✔True - ✔✔The distribution layer of a backbone connects LANs together.
True or False
✔✔there are many more networking devices in a switched backbone network -
✔✔Which of the following is not true about switched backbones?
performance is improved over traditional (bridged or routed) backbone networks
each connection into the switch is a separate point-to-point circuit which supports
simultaneous access by the LANs connected to the switch
there are many more networking devices in a switched backbone network
if the switch fails, so does the entire backbone network
the backbone essentially exists in the switch; there is no backbone cable
