JNCIA-MISTAI EXAM WITH VERIFIED ANSWERS

JNCIA-MISTAI EXAM WITH VERIFIED
ANSWERS

Bluetooth - correct answer ✔802.15.1
x x x x




Zigbee - correct answer ✔802.15.4
x x x x




Firewire - correct answer ✔IEEE 1394
x x x x x




Special Interest Group (SIG) - correct answer ✔Who branded bluetooth?
x x x x x x x x x




Apple
Comcast
Sony
Intel
Qualcomm
T-mobile - correct answer ✔Who is part of the wifi alliance
x x x x x x x x x x




They are a non-profit organization whi provides branding for WiFi and owns
x x x x x x x x x x x x


the logo and terms (such asWiFi6 andWPA) - correct answer ✔Who are the
x x x x x x x x x x x x x


WiFi alliance?
x




Lower Frequency
x




Longer wavelength
x

,More range x




Crowded
Higher non-wifi interference
x x




802.11b/n/g/ax - correct answer ✔Define 2.5GHz x x x x x




Higher frequency x




Shorter wavelength x




Less range
x




Less crowded
x




Less non-wifi interference
x x




802.11a/n/ac/ax - correct answer ✔Define 5GHz x x x x x




1-11 (12 & 13 in Europe and 14 in Japan) - correct answer ✔How many
x x x x x x x x x x x x x x x


channels are in 2.4GHz? x x x




20MHz - correct answer ✔How wide is each channel in 24 and 5GHz?
x x x x x x x x x x x x




3 non-overlapping channel (1, 6 & 11) - correct answer ✔How many channels
x x x x x x x x x x x x x


don't overlap in 2.4GHz and what are they?
x x x x x x x




Each channel can corrupt the others transmissions causing sporadic
x x x x x x x x x


connections and/or signals - correct answer ✔What happens when you use
x x x x x x x x x x x


overlapping channels? x




One device at any given time on any given channel - correct answer ✔How
x x x x x x x x x x x x x x


many devices can transmit at any given time?
x x x x x x x

, When two or more devices are operating on the same frequency channel. -
x x x x x x x x x x x x x


correct answer ✔What is co-channel interference?
x x x x x




nearly 25 - correct answer ✔How many channels are there with 5GHz?
x x x x x x x x x x x




Unlicensed National Information Infrastructure (UNII) - correct answer ✔What
x x x x x x x x


are the smaller bands within 5GHz called?
x x x x x x x




UNII-1 has 4 channels x x x




UNII-2 has 4 channels x x x




UNII-2 extended has 12 channels
x x x x




UNII-3 has 4 channels x x x x




ISM (Industrial, Scientific & Medical) band has 1 channel - correct answer
x x x x x x x x x x x x


✔How many channels are in the UNII bands?
x x x x x x x




UNII-2 & UNII-2 Extended - correct answer ✔What channels in the 5GHz band
x x x x x x x x x x x x


include DFS (Dynamic Frequency Selection) channels?
x x x x x x




The operating AP much listen for radar for a certain amount of time, before
x x x x x x x x x x x x x x


it can begin to operate on these channels. - correct answer ✔What must an
x x x x x x x x x x x x x x


AP do when operating on a DFS channel?
x x x x x x x




If a radar signal is detected by an operating AP, the AP will transmit a
x x x x x x x x x x x x x x x


Channel Switch Announcement (CSA) - correct answer ✔What happens when
x x x x x x x x x x


a radar signal is detected?
x x x x