PROGRESSION: FIELD TECH V - VI
CONVENTIONAL QUESTIONS AND
ANSWERS
What is typically required when working on a voice installation with a private branch exchange (PBX)
system? ✅✅ANSW-A telephone technician or onsite support that is provided by the customer.
What is the first thing to look for when telephones within the business experience an
issue where there is no dial tone and the embedded multimedia terminal adapter (EMTA) is
powered up? ✅✅ANSW-Check dial tone directly from the EMTA using a telephone test set.
What does electrical interference from electrical wiring or electric motors cause on telephone
wiring? ✅✅ANSW-Noise on the line.
What telephone wiring condition is characterized by one or more telephones not working
because one or both conductors have been cut? ✅✅ANSW-Open condition.
Why is it important that a channel plan ensures no two adjacent access points are on the same
channel? ✅✅ANSW-To avoid co-channel interference
What special band, in the 5 GHz band, is located on Channel 165? ✅✅ANSW-Industrial, Scientific,
and Medical (ISM) band
Which two bands, in the 5GHz band, are home to the dynamic frequency selection (DFS) channels?
✅✅ANSW-Unlicensed National Information Infrastructure (UNII)-2 and UNII-2e bands
Which Wi-Fi transmitting device has the highest likelihood to support dynamic frequency selection
(DFS) channels? ✅✅ANSW-Enterprise-grade access points (AP)
How many non-overlapping, dynamic frequency selection (DFS) supporting, 20 MHz wide channels
reside in the 5 GHz band? ✅✅ANSW-24
, What can be done when access points (AP) share the same channel and are contending for
airtime, thus slowing down the network? ✅✅ANSW-Turn down transmit power
What consideration could one make if a deployed network has good 2.4 GHz coverage with
lackluster 5 GHz coverage? ✅✅ANSW-Reduce transmit power in 2.4 GHz
What is a result of 5 GHz wavelengths being shorter than 2.4 GHz wavelengths? ✅✅ANSW-5 GHz
waves have a lower indoor range then 2.4 GHz waves.
What credential server do Wired Protected Access (WPA) or
WPA2 encrypted access points (AP) use to compare credentials prior to allowing a user to
authenticate to a network? ✅✅ANSW-Remote Authentication Dial-In Service (RADIUS) server
What is a good practice to use when installing an access point (AP) in
a hospital room or dormitory where people sleep? ✅✅ANSW-Disable the light-emitting diodes
(LED) on the AP and only temporarily enable them when troubleshooting
If the Internet protocol (IP) address 192.168.100.0 names the network, what
kind of address is 192.168.100.255 for that same network? ✅✅ANSW-Broadcast.
Paula is dividing her home network into two smaller networks.
Given the fact she is using the 192.168.100.0 network, which of the f
ollowing subnet masks will supply the division she seeks? ✅✅ANSW-255.255.255.128
Bruce purchased a replacement router/firewall combination machine to
replace the old one he inherited from the previous network administrator.
The old router used decimal notation for masks. The new router uses Classless Inter-Domain Routing
(CIDR)
notation for masks. Which of the following decimal to CIDR notations are not valid? ✅✅ANSW-
255.255.255.0 to /32
At work, Emily's laptop is assigned the Internet protocol (IP) address
192.10.10.10. When Emily takes the computer home, the laptop is assigned
CONVENTIONAL QUESTIONS AND
ANSWERS
What is typically required when working on a voice installation with a private branch exchange (PBX)
system? ✅✅ANSW-A telephone technician or onsite support that is provided by the customer.
What is the first thing to look for when telephones within the business experience an
issue where there is no dial tone and the embedded multimedia terminal adapter (EMTA) is
powered up? ✅✅ANSW-Check dial tone directly from the EMTA using a telephone test set.
What does electrical interference from electrical wiring or electric motors cause on telephone
wiring? ✅✅ANSW-Noise on the line.
What telephone wiring condition is characterized by one or more telephones not working
because one or both conductors have been cut? ✅✅ANSW-Open condition.
Why is it important that a channel plan ensures no two adjacent access points are on the same
channel? ✅✅ANSW-To avoid co-channel interference
What special band, in the 5 GHz band, is located on Channel 165? ✅✅ANSW-Industrial, Scientific,
and Medical (ISM) band
Which two bands, in the 5GHz band, are home to the dynamic frequency selection (DFS) channels?
✅✅ANSW-Unlicensed National Information Infrastructure (UNII)-2 and UNII-2e bands
Which Wi-Fi transmitting device has the highest likelihood to support dynamic frequency selection
(DFS) channels? ✅✅ANSW-Enterprise-grade access points (AP)
How many non-overlapping, dynamic frequency selection (DFS) supporting, 20 MHz wide channels
reside in the 5 GHz band? ✅✅ANSW-24
, What can be done when access points (AP) share the same channel and are contending for
airtime, thus slowing down the network? ✅✅ANSW-Turn down transmit power
What consideration could one make if a deployed network has good 2.4 GHz coverage with
lackluster 5 GHz coverage? ✅✅ANSW-Reduce transmit power in 2.4 GHz
What is a result of 5 GHz wavelengths being shorter than 2.4 GHz wavelengths? ✅✅ANSW-5 GHz
waves have a lower indoor range then 2.4 GHz waves.
What credential server do Wired Protected Access (WPA) or
WPA2 encrypted access points (AP) use to compare credentials prior to allowing a user to
authenticate to a network? ✅✅ANSW-Remote Authentication Dial-In Service (RADIUS) server
What is a good practice to use when installing an access point (AP) in
a hospital room or dormitory where people sleep? ✅✅ANSW-Disable the light-emitting diodes
(LED) on the AP and only temporarily enable them when troubleshooting
If the Internet protocol (IP) address 192.168.100.0 names the network, what
kind of address is 192.168.100.255 for that same network? ✅✅ANSW-Broadcast.
Paula is dividing her home network into two smaller networks.
Given the fact she is using the 192.168.100.0 network, which of the f
ollowing subnet masks will supply the division she seeks? ✅✅ANSW-255.255.255.128
Bruce purchased a replacement router/firewall combination machine to
replace the old one he inherited from the previous network administrator.
The old router used decimal notation for masks. The new router uses Classless Inter-Domain Routing
(CIDR)
notation for masks. Which of the following decimal to CIDR notations are not valid? ✅✅ANSW-
255.255.255.0 to /32
At work, Emily's laptop is assigned the Internet protocol (IP) address
192.10.10.10. When Emily takes the computer home, the laptop is assigned
