J308 Module 3 GRADE A Q&A
In Shannon's model, signals traveling along a communication channel can be disrupted
by
a. source
b. transmitter
c. receiver
d. noise - (correct answer)noise
A university that offers wireless Internet access to students in classrooms is operating
what type of network?
a. PAN
b. LAN
c. IoT
d. WAN - (correct answer)LAN
T/F: Data traveling on a wired channel tends to be more secure than data traveling on a
wireless channel. - (correct answer)True
Which of the following situations is most suitable for a network that connects most
devices with cables?
a. university campus
b. bank branch office
c. private home
d. coffee shop - (correct answer)bank branch office
What type of wireless channels are most typically used for networks in homes and
coffee shops?
a. RF
b. Coax
,c. Microwave
d. WiMAX - (correct answer)RF
You have a choice fo network connections. Which one of the following is broadband?
a. 56 Kbps phone link
b. 2.4 GHz cordless phone
c. 50 Mbps cable connection
d. 1.2 Mbps satellite link - (correct answer)50 Mbps cable connection
In the full mesh network, how many possible paths are there between any two points?
a. 1
b. 5
c. 9
d. 10 - (correct answer)10
When you connect a cell phone to a network, it is considered
a. DTE
b. DCE
c. SPT
d. TCP - (correct answer)DTE
A typical home network with Internet access would have
a. single DTE
b. multiple DCEs, but no DTEs
c. modem and a router
d. multiple routers - (correct answer)modem and a router
, To extend the reach of your wireless network out onto your balcony, which of the
following devices would be best?
a. hub
b. router
c. repeater
d. gateway - (correct answer)repeater
Which protocol category is responsible for the standards that attempt to block junk mail?
a. physical
b. transport
c. arrival - (correct answer)arrival
A ___ area network connects smart sensors and digital devices within a range of about
30 ft. - (correct answer)personal
The communication ___ used for networks include copper cables, coaxial cables, radio
signals, and microwaves. - (correct answer)channels
Networks that handle at least 25 Mbps are classified by the FCC as ___. - (correct
answer)broadband
Modems and routers are examples of ___ that control the flow of data within a network
and act as a gateway from one network to another (use acronym) - (correct
answer)DCE
Communication ___ set standards for physical channels, transporting data, and
correcting errors. - (correct answer)protocols
ARPANET
In Shannon's model, signals traveling along a communication channel can be disrupted
by
a. source
b. transmitter
c. receiver
d. noise - (correct answer)noise
A university that offers wireless Internet access to students in classrooms is operating
what type of network?
a. PAN
b. LAN
c. IoT
d. WAN - (correct answer)LAN
T/F: Data traveling on a wired channel tends to be more secure than data traveling on a
wireless channel. - (correct answer)True
Which of the following situations is most suitable for a network that connects most
devices with cables?
a. university campus
b. bank branch office
c. private home
d. coffee shop - (correct answer)bank branch office
What type of wireless channels are most typically used for networks in homes and
coffee shops?
a. RF
b. Coax
,c. Microwave
d. WiMAX - (correct answer)RF
You have a choice fo network connections. Which one of the following is broadband?
a. 56 Kbps phone link
b. 2.4 GHz cordless phone
c. 50 Mbps cable connection
d. 1.2 Mbps satellite link - (correct answer)50 Mbps cable connection
In the full mesh network, how many possible paths are there between any two points?
a. 1
b. 5
c. 9
d. 10 - (correct answer)10
When you connect a cell phone to a network, it is considered
a. DTE
b. DCE
c. SPT
d. TCP - (correct answer)DTE
A typical home network with Internet access would have
a. single DTE
b. multiple DCEs, but no DTEs
c. modem and a router
d. multiple routers - (correct answer)modem and a router
, To extend the reach of your wireless network out onto your balcony, which of the
following devices would be best?
a. hub
b. router
c. repeater
d. gateway - (correct answer)repeater
Which protocol category is responsible for the standards that attempt to block junk mail?
a. physical
b. transport
c. arrival - (correct answer)arrival
A ___ area network connects smart sensors and digital devices within a range of about
30 ft. - (correct answer)personal
The communication ___ used for networks include copper cables, coaxial cables, radio
signals, and microwaves. - (correct answer)channels
Networks that handle at least 25 Mbps are classified by the FCC as ___. - (correct
answer)broadband
Modems and routers are examples of ___ that control the flow of data within a network
and act as a gateway from one network to another (use acronym) - (correct
answer)DCE
Communication ___ set standards for physical channels, transporting data, and
correcting errors. - (correct answer)protocols
ARPANET
