- Monitor
It enables RFID-tag location tracking
It enables air-quality data and interference detection across all enabled devices
- Sensor
It supports real-time Wi-Fi client troubleshooting when network engineers are offsite.
It supports analytics for wireless performance testing
- Sniffer
It supports software that analyzes wireless frames on a remote device
it captures and forwards packets on a specific wireless channel
Please check the following
- Monitor Mode
> To optimize the monitoring and location calculation of RFID tags, you can enable tracking optimization on up to four channels within the 2.4-GHz band of an 802.11b/g/x access point radio. This feature allows you to scan only the channels on which tags are usually programmed to operate (such as channels 1, 6, and 11).
https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/config-guide/b_wl_16_10_cg/monitor-mode.html
> Monitor—When Cisco CleanAir is enabled in monitor mode, the access point provides air quality and interference detection reports for all monitored channels.
https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/config-guide/b_wl_16_10_cg/cisco-cleanair.html
- Sniffer Mode
> The controller enables you to configure an access point as a network “sniffer”, which captures and forwards all the packets on a particular channel to a remote machine that runs packet analyzer software. These packets contain information on time stamps, signal strength, packet sizes, and so on.
> A remote monitoring device—A computer capable of running the analyzer software.
https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/config-guide/b_wl_16_10_cg/sniffer-mode.html
- Sensor Mode
> As these wireless networks grow especially in remote facilities where IT professionals may not always be on site, it becomes even more important to be able to quickly identify and resolve potential connectivity issues ideally before the users complain or notice connectivity degradation.
https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/config-guide/b_wl_16_10_cg/b_wl_16_10_cg_chapter_01101110.html
> To address these issues we have created Cisco's Wireless Service Assurance and a new AP mode called "sensor" mode. Cisco's Wireless Service Assurance platform has three components, namely, Wireless Performance Analytics, Real-time Client Troubleshooting, and Proactive Health Assessment.
https://www.cisco.com/c/en/us/td/docs/wireless/controller/technotes/8-6/b_Cisco_Aironet_Sensor_Deployment_Guide.html
Monitor
It enables RFID-tag location tracking
It enables air-quality data and interference detection across all enabled devices
Sensor
it supports real time wifi client troubleshooting when network engineers are offline
It supports analytics for wireless performance testing
Sniffer
it captures and forwards packets on a specific wireless channel
It supports software that analyzes wireless frames on a remote device
https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/config-guide/b_wl_16_10_cg/monitor-mode.html
https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/config-guide/b_wl_16_10_cg/b_wl_16_10_cg_chapter_01101110.html
https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/config-guide/b_wl_16_10_cg/sniffer-mode.html
Monitor
It enables RFID-tag location tracking
It supports analytics for wireless performance testing (if the mode provide AP location is in dee analytics for performance)
monitor mode：https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/config-guide/b_wl_16_10_cg/monitor-mode.pdf
Sensor
it supports real time wifi client troubleshooting when network engineers are offline
It enables air-quality data and interference detection across all enabled devices
sensor mode：https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/config-guide/b_wl_16_10_cg/b_wl_16_10_cg_chapter_01101110.pdf
Sniffer
it captures and forwards packets on a specific wireless channel
It supports software that analyzes wireless frames on a remote device
general rf: https://study-ccnp.com/cisco-wireless-access-point-ap-modes-explained/
Monitor
It supports analytics for wireless performance testing
It enables RFID-tag location tracking
Sensor
it supports real time wifi client troubleshooting when network engineers are offline
It enables air-quality data and interference detection across all enabled devices
Sniffer
It supports software that analyzes wireless frames on a remote device
it captures and forwards packets on a specific wireless channel
https://study-ccnp.com/cisco-wireless-access-point-ap-modes-explained/
Sniffer, huh?
Maybe some folks at Cisco could do with one of those. Might help them sniff out the BS that's clearly leaking through into the CCNA exam.
Monitor
- It enables enhanced RFID-tag location tracking.
https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/config-guide/b_wl_16_10_cg/monitor-mode.pdf
- It provides air-quality data and interference detection across all enabled channels.
https://www.cisco.com/en/US/docs/switches/lan/catalyst3650/software/release/3se/consolidated_guide/configuration_guide/b_consolidated_3850_3se_cg_chapter_011011.html#task_8022D2989BD74F1E851BBA6C30992C2E
Sensor
- It supports real-time Wi-Fi client troubleshooting when network engineers are offsite.
- It supports analytics for wireless performance testing.
https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/config-guide/b_wl_16_10_cg/monitor-mode.pdf
Sniffer
- It captures and forwards packets on a specific wireless channel.
https://www.cisco.com/c/en/us/support/docs/wireless-mobility/80211/200527-Fundamentals-of-802-11-Wireless-Sniffing.html
- It supports software that analyzes wireless frames on a remote device.
https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/17-7/config-guide/b_wl_17_7_cg/m-sniffer-cg.html#:~:text=%E2%80%9Csniffer%E2%80%9D%2C%20which%20captures%20and%20forwards%20all%20the%20packets%20on%20a%20particular%20channel%20to%20a%20remote%20machine%20that%20runs%20packet%20analyzer%20software.
From Cert guide, nothing about sensor in the book.
Monitor: The AP does not transmit at all, but its receiver is enabled to act as a dedicated sensor. The AP checks for IDS events, detects rogue access points, and determines the position of stations through location-based services.
Sniffer: An AP dedicates its radios to receiving 802.11 traffic from other sources, much like a sniffer or packet capture device. The captured traffic is then forwarded to a PC running network analyzer software such as Wildpackets OmniPeek or WireShark, where it can be analyzed further.
Based off the text from the cert guide I think the following fits best.
It enables enhanced RFID-tag location tracking ( bit of a stretch but location services)
it provides air-quality data and interference detection across all enabled channels (detect rouge APs)
it supports analytics for wireless performance testing
it supports real-time wifi client troubleshooting when network engineers are offsite
it supports software that analyzes wireless frames on a remote device ("forwarded to a pc")
IT captures and forwards packets on a specific wireless channel (packet capture device)
Monitor
It enables RFID-tag location tracking
It supports analytics for wireless performance testing
Sensor
it supports real time wifi client troubleshooting when network engineers are offline
It supports software that analyzes wireless frames on a remote device
Sniffer
it captures and forwards packets on a specific wireless channel
It enables air-quality data and interference detection across all enabled devices
monitor mode：https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/config-guide/b_wl_16_10_cg/monitor-mode.pdf
sensor mode：https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/config-guide/b_wl_16_10_cg/b_wl_16_10_cg_chapter_01101110.pdf
sniffer mode：https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/config-guide/b_wl_16_10_cg/sniffer-mode.pdf
sorry, I correct my answer as follows
Monitor
It enables RFID-tag location tracking
It supports software that analyzes wireless frames on a remote device
Sensor
it supports real time wifi client troubleshooting when network engineers are offline
It supports analytics for wireless performance testing
Sniffer
it captures and forwards packets on a specific wireless channel
It enables air-quality data and interference detection across all enabled devices
Don't think that "sensor" is an official AP mode, but by elimination and using below sources i came to this result
(please correct if wrong)
Monitor
It supports analytics for wireless performance testing
It supports software that analyzes wireless frames on a remote device
Sensor
It enables RFID-tag location tracking
It enables air-quality data and interference detection across all enabled devices
Sniffer
it supports real time wifi client troubleshooting when network engineers are offline
it captures and forwards packets on a specific wireless channel
https://community.cisco.com/t5/wireless/access-point-modes/td-p/1154701
https://study-ccnp.com/cisco-wireless-access-point-ap-modes-explained/
https://networklessons.com/cisco/ccna-200-301/cisco-wireless-ap-modes
For me it would be more logic that way :
Monitor
It supports analytics for wireless performance testing
it supports real time wifi client troubleshooting when network engineers are offline
Sensor
It enables RFID-tag location tracking
It enables air-quality data and interference detection across all enabled devices
Sniffer
It supports software that analyzes wireless frames on a remote device
it captures and forwards packets on a specific wireless channel
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