- Class 1: maximum output power 100 mW (20 dBm). Used for extended range up to about 100 m;
- Class 2: maximum output power 2,5 mW (4 dBm). Normal usage, range up to about 10 m;
- Class 3: maximum output power 1 mW (0 dBm). Short range communications from 10 cm up to 1 m.
Which 802.11 standard functions are in both the 2.4 GHz and 5 GHz band?
AX
operates in both the 2.4 GHz and 5 GHz frequencies and is backward compatible with Wi-Fi 4 and 5.
Which of the following does Bluetooth use to take advantage of the 79 channels it has allocated to it?
– Bluetooth, commonly used to connect wireless personal devices, uses FHSS to take advantage of the 79 channels allocated to the
Bluetooth band
.
Answer :
Network layer 3
is the lowest layer of the OSI Model at which wired and wireless transmissions share the same protocol .
What is a Class 1 Bluetooth device?
The class of the Bluetooth device will determine the wireless range of the device. Most Bluetooth devices are Class 2 meaning they operate at a distance of up to 30 feet. Class 1 devices
can operate at a distance of up to 300 feet
.
Which Bluetooth power class allows for a maximum power output of 100 mW and a range of up to 100m?
| BT Class >Maximum Power Operating Range | Class 1 100 mW (20 dBm) 100 meters | Class 2 2.5 mW (4 dBm) 10 meters | Class 3 1 mW (0 dBm) 1 meter |
|---|
What is the maximum speed of 802.11 b?
| Protocol Frequency Maximum data rate (theoretical) | 802.11g 2.4 GHz 54 Mbps | 802.11a 5 GHz 54 Mbps | 802.11b 2.4 GHz 11 Mbps | Legacy 802.11 2.4 GHz 2 Mbps |
|---|
Which is better 802.11 n or 802.11 ac?
However, the simple answer is this:
802.11ac is faster than 802.11n
. 802.11n is ok if you have just a few devices connecting to a router. But if you have lots of Wi-Fi gadgets and a family where each person has a phone and a tablet, you’ll have a better experience with 802.11ac.
What is the fastest 2.4 GHz wireless 802.11 standard?
| Name Speed Frequency | 802.11n 100 Mbps 2.4 and 5 GHz | Notes The fastest type of network. 100 Mbps is common, though speeds of up to 600 Mbps is possible under perfect conditions. It does this by using multiple frequencies at once and joining that speed together. |
|---|
What is the minimum category of UTP cable required?
The
CAT5 cable
is the minimum category of the UTP cable required in order to support gigabit speeds.
What technology does Bluetooth use to take?
Bluetooth is a short-range wireless communication technology standard. Bluetooth uses
short-wavelength UHF radio waves
of a frequency range between 2.4 and 2.485 GHz.
Which Carrier Sense technology is used on wireless networks to reduce collision?
Carrier sense multiple access/collision avoidance (CSMA/CA)
is a protocol for carrier transmission in 802.11 networks. It was developed to minimize the potential of a collision occurring when two or more stations send their signals over a data link layer.
What 802.11 frame type is involved?
There are three types of 802.11 frames:
management, control, and data
. Management frames are used to mange the BSS, control frames control access to the medium, and data frames contain payloads that are the layer 3-7 information.
How many address fields does an 802.11 header have quizlet?
An 802.11 data frame contains
four
address fields, in contrast to the two address fields in 802.3 Ethernet.
What is the purpose of the layer 2 LLC sublayer?
What is the purpose of the Layer 2 LLC sublayer? It is used
to handle multiplexing, flow and error control, and reliability
.
What is a Class 3 Bluetooth device?
The range of Bluetooth depends on its class and there are three main classes of Bluetooth: Class 1 : transmits at 100 mW with a range of 100 meters. Class 2 : Most Bluetooth headsets and headphones transmit at 2.5 mW with a range of 10 meters. Class 3 :
transmits with 1 mW at a range of less than 10 meters
.
What is the maximum range of Class 2 2.5 milliwatt mW Bluetooth devices?
What is the maximum range of Class 2, 2.5 milliwatt (mW), Bluetooth devices?
10 meters or 33 feet
.
What is the difference between Class 1 and Class 2 Bluetooth?
Class 1 devices are the most powerful. These can have up to 100 mW of power, and a regular antenna will give them a range of about 40 m – 100 m (130 – 330 ft).
Class 2 devices are lower power, with up to 2.5 mW of power
. A regular antenna will give them a range of about 15 m – 30 m (50 – 100 ft).
What is the maximum range of Bluetooth 2.0 Specification for Class 1 devices?
What is the maximum range of the Bluetooth 2.0 specification for Class 1 devices? Bluetooth version 2.0 class 1 devices have a maximum range of about
100 meters
. Earlier versions had a maximum range of only about 10 meters.
How many output power classes Does Bluetooth have list the power level and the operating range for each class?
The Bluetooth specification defines
three power classes
for radio transmitters with an output power of 1 mW, 2.5 mW and 100 mW. The output power defines the range that the device is able to cover and thus the functionality of your product must be considered when deciding which power class to use.
What is the maximum supported throughput of a Cat6 cable group of answer choices?
The maximum supported throughput of a Cat6 cable is
10Gbps
.
Does 802.11b/g/n support 5GHz?
Generally, a router that states it’s 802.11a/g/n, or 802.11ac will work at 5GHz. However,
a router that is 802.11b/g/n has a slim chance of supporting that frequency
, and you may need to upgrade. If your router supports 5GHz connectivity, the next thing to do is to check your adapter.
How fast is wireless n?
Almost the Fastest: 802.11n:
Maximum throughput: 450Mbps
. Normal throughput in practice: 100Mbps+. Approved in 2009. It can operate on both the 2.4GHz or 5GHz.
What speed is wireless n?
| 2.4 GHz Theoretical Speed Real-World Speed | 802.11g 54 Mbps 10-29 Mbps | 802.11n 300 Mpbs 150 Mbps |
|---|
Which wireless standard is the fastest?
If you’re looking for faster Wi-Fi performance, you want
802.11ac
— it’s that simple. In essence, 802.11ac is a supercharged version of 802.11n. 802.11ac is dozens of times faster, and delivers speeds ranging from 433 Mbps (megabits per second) up to several gigabits per second.
Should I use 2.4 G or 5G?
Ideally, the
2.4GHz band should be used to connect devices for low bandwidth activities like browsing the Internet
. On the other hand, 5GHz is the best option for high-bandwidth devices or activities like gaming and streaming HDTV.
Which wireless network mode is best?
If you want maximum throughput and minimal interference,
channels 1, 6, and 11
are your best choices. But depending on other wireless networks in your vicinity, one of those channels might be a better option than the others.
