nerdexam
Fortinet

NSE4_FGT-7.0 · Question #110

In a high availability (HA) cluster operating in active-active mode, which of the following correctly describes the path taken by the SYN packet of an HTTP session that is offloaded to a secondary…

The correct answer is D. Client> primary FortiGate> secondary FortiGate> web server. In an active-active FortiGate HA cluster, the primary FortiGate receives initial client requests and, when offloading a session, redirects the SYN packet to a secondary FortiGate, which then processes and forwards it directly to the web server.

High Availability

Question

In a high availability (HA) cluster operating in active-active mode, which of the following correctly describes the path taken by the SYN packet of an HTTP session that is offloaded to a secondary FortiGate?

Options

  • AClient > primary FortiGate> secondary FortiGate> primary FortiGate> web server.
  • BClient > secondary FortiGate> web server.
  • CClient >secondary FortiGate> primary FortiGate> web server.
  • DClient> primary FortiGate> secondary FortiGate> web server.

How the community answered

(24 responses)
  • B
    4% (1)
  • C
    8% (2)
  • D
    88% (21)

Why each option

In an active-active FortiGate HA cluster, the primary FortiGate receives initial client requests and, when offloading a session, redirects the SYN packet to a secondary FortiGate, which then processes and forwards it directly to the web server.

AClient > primary FortiGate> secondary FortiGate> primary FortiGate> web server.

The traffic does not return to the primary FortiGate after being offloaded to the secondary for processing and then go to the web server; the secondary FortiGate handles the traffic directly once offloaded.

BClient > secondary FortiGate> web server.

In an active-active HA setup, the client typically sends the initial SYN packet to the primary FortiGate's virtual IP, not directly to a secondary FortiGate.

CClient >secondary FortiGate> primary FortiGate> web server.

After offloading, the secondary FortiGate processes the session and sends traffic directly to the web server; it does not send it back to the primary FortiGate first.

DClient> primary FortiGate> secondary FortiGate> web server.Correct

In an active-active HA cluster, the primary FortiGate receives all initial connections, and if a session is offloaded, the primary unit redirects the SYN packet to a secondary FortiGate which then processes the session and forwards it directly to the web server. This ensures session load distribution while maintaining a single point of entry for clients.

Concept tested: FortiGate Active-Active HA session offloading

Source: https://docs.fortinet.com/document/fortigate/7.4.0/fortios-handbook/314115/active-active-ha-load-balancing

Topics

#High Availability#Active-Active HA#Session offloading#Traffic flow

Community Discussion

No community discussion yet for this question.

Full NSE4_FGT-7.0 Practice