101 · Question #124
What is a characteristic of iQuery?
The correct answer is B. It uses SSL.. iQuery is F5's proprietary inter-device communication protocol and uses SSL to secure the health and performance data exchanged between GTM and LTM systems.
Question
What is a characteristic of iQuery?
Options
- AIt uses SSH.
- BIt uses SSL.
- CIt uses SCP.
- DIt uses HTTPS.
How the community answered
(27 responses)- A4% (1)
- B89% (24)
- D7% (2)
Why each option
iQuery is F5's proprietary inter-device communication protocol and uses SSL to secure the health and performance data exchanged between GTM and LTM systems.
iQuery does not use SSH; SSH is a general remote administration protocol and is not used for the continuous metric and health data exchange that iQuery performs between F5 devices.
iQuery operates over SSL on TCP port 4353 to encrypt all communication between BIG-IP DNS (GTM) and BIG-IP LTM devices, protecting the virtual server availability and performance metrics in transit. SSL ensures the integrity and confidentiality of the iQuery data stream that GTM relies on to make informed load balancing decisions.
SCP is a file transfer protocol built on SSH and has no role in iQuery's real-time inter-device communication for monitoring and load balancing data.
iQuery does not use HTTPS; it establishes its own SSL-secured channel on a dedicated port (4353) rather than using the standard HTTP/HTTPS protocol stack on port 443.
Concept tested: F5 iQuery protocol SSL-based inter-device communication
Source: https://support.f5.com/csp/article/K7312
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