Application Steering with SD-WAN and FortiGate Quiz

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Questions and Answers

Which of the following triggers a session re-evaluation on the next packet?

  • Firewall policy lookup
  • Application detection
  • Dirty flag (correct)
  • Route lookup

What does FortiGate do if the application is not detected on a packet?

  • Drops the packet
  • Sends the packet to IPS for application detection (correct)
  • Stores the packet in the cache
  • Forwards the packet without further inspection

How many entries can the ISDB application cache contain?

  • 256 entries
  • 512 entries (correct)
  • 2048 entries
  • 1024 entries

What happens to old entries in the ISDB application cache when it is full?

<p>They are deleted to make space for new entries (A)</p> Signup and view all the answers

What does the 'app' field indicate on the SD-WAN session?

<p>Application ID (C)</p> Signup and view all the answers

What does the 'rpdb_svc_id' field indicate on the SD-WAN session?

<p>ISDB application ID (A)</p> Signup and view all the answers

When can a session initially match the wrong rule and member?

<p>When the session 3-tuple doesn't have an entry in the ISDB application cache (D)</p> Signup and view all the answers

What happens to subsequent sessions with the same 3-tuple after the application is learned?

<p>They are routed to the expected member (A)</p> Signup and view all the answers

What happens to the routing information of a session subject to S-NAT after the application is detected?

<p>It is preserved (C)</p> Signup and view all the answers

What is the purpose of running 'diagnose sys sdwan internet-service-app-ctrl-list' on the FortiGate CLI?

<p>To view the ISDB application cache entries (D)</p> Signup and view all the answers

Which of the following is true about the application learning phase in FortiGate?

<p>FortiGate must identify the application before it can match the right rule. (A)</p> Signup and view all the answers

What does the ISDB application cache in FortiGate map?

<p>Destination IP, protocol, and destination port to an application and an SD-WAN rule. (B)</p> Signup and view all the answers

When does FortiGate add a session 3-tuple to the ISDB application cache?

<p>After the application is detected and the session 3-tuple doesn't match an entry in the cache. (C)</p> Signup and view all the answers

What happens when a packet matches an entry in the ISDB application cache in FortiGate?

<p>FortiGate routes the packet based on the matching SD-WAN rule and performs a firewall policy lookup. (C)</p> Signup and view all the answers

What does FortiGate do if the 3-tuple on a packet doesn't match an entry in the ISDB application cache?

<p>FortiGate performs route and firewall policy lookups for the packet. (C)</p> Signup and view all the answers

What does FortiGate do after the firewall policy lookup for a packet?

<p>FortiGate must identify the application using the IPS engine. (C)</p> Signup and view all the answers

What does it mean when a session is flagged as dirty in FortiGate?

<p>S-NAT conditions apply to the session. (B)</p> Signup and view all the answers

How many applications can be mapped to a single 3-tuple in the ISDB application cache?

<p>One (B)</p> Signup and view all the answers

What does FortiGate do when it receives the first packet of a session?

<p>Checks if the 3-tuple on the packet matches an entry in the ISDB application cache. (B)</p> Signup and view all the answers

What is the purpose of the application learning phase in FortiGate?

<p>To identify the application on the traffic before matching the right rule. (A)</p> Signup and view all the answers

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