Optimizing Resource Usage
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Questions and Answers

Which version of IKE is supported by the network ID feature?

  • IKE-v4
  • IKE-v3
  • IKE-v2 (correct)
  • IKE-v1

What is the purpose of setting a network ID on each overlay in a VPN configuration?

  • To improve the performance and stability of network applications
  • To prioritize certain flows over others
  • To allow the spokes to establish shortcuts between the same pair of local and remote gateway IP-addresses (correct)
  • To establish shortcuts between different pairs of local and remote gateway IP-addresses

What is traffic shaping?

  • A technique to prioritise specific traffic over other traffic
  • A technique to drop packets that do not conform to bandwidth limitations
  • A technique to adjust bandwidth limits and prioritisation (correct)
  • A technique to normalise traffic peaks and bursts

Which of the following is NOT a technique that can be used to implement QoS?

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

What is the purpose of implementing QoS?

<p>To improve the performance and stability of all types of traffic (B)</p> Signup and view all the answers

What does traffic policing do?

<p>Drops packets that do not conform to bandwidth limitations (C)</p> Signup and view all the answers

What does traffic shaping consist of?

<p>A mixture of traffic policing and priority queue adjustment (B)</p> Signup and view all the answers

What does queuing ensure?

<p>That packets are transmitted in order of their assigned priority queue (A)</p> Signup and view all the answers

What is the benefit of setting a different network ID for each overlay in a VPN configuration?

<p>To establish shortcuts between different pairs of local and remote gateway IP-addresses (A)</p> Signup and view all the answers

What is the purpose of bandwidth adjustment in traffic shaping?

<p>To assist packets in achieving the guaranteed rate (C)</p> Signup and view all the answers

Which of the following is true about idle shortcuts in FortiGate?

<p>Idle shortcuts inherit lifetime settings from their parent tunnels. (D)</p> Signup and view all the answers

What can be done to save resources when dealing with idle shortcuts in FortiGate?

<p>Set an idle timer for shortcuts. (A)</p> Signup and view all the answers

Which type of configuration is recommended for SD-WAN + AD-VPN + lowest cost SLA, rules deployments?

<p>Default configuration (C)</p> Signup and view all the answers

What is the purpose of configuring an idle timeout for shortcuts in FortiGate?

<p>To reduce unnecessary resource utilization on spokes. (A)</p> Signup and view all the answers

What happens if a member does not meet the SLA target in a lowest cost SLA rule?

<p>It is considered out of SLA and placed at the bottom of the outgoing interface list (C)</p> Signup and view all the answers

Which of the following is considered as user traffic in FortiGate?

<p>Forwarding user traffic. (A)</p> Signup and view all the answers

What can happen to links impacted by brownout conditions?

<p>They will switch in and out of SLA states in short periods of time (C)</p> Signup and view all the answers

What happens if an idle shortcut is not used for forwarding user traffic in FortiGate?

<p>FortiGate brings down the idle shortcut. (D)</p> Signup and view all the answers

What is the purpose of configuring the hold-down-time setting on an SD-WAN rule?

<p>To prevent immediate failback to a recovered member (B)</p> Signup and view all the answers

How long does the example configuration set as the idle timeout for shortcuts in FortiGate?

<p>Five minutes. (C)</p> Signup and view all the answers

What is the default value of the hold-down-time setting?

<p>0 (C)</p> Signup and view all the answers

What is the purpose of delaying failback to recovered members in FortiGate?

<p>To prevent impact to sensitive applications during brownout conditions and SLA changes. (D)</p> Signup and view all the answers

What is the impact of session re-evaluation on CPU usage in FortiGate?

<p>It increases CPU usage. (C)</p> Signup and view all the answers

What is the default behavior of shortcuts when their parent tunnel goes down?

<p>Shortcuts remain up (D)</p> Signup and view all the answers

What can be done to bring down shortcuts immediately after their parent tunnel goes down?

<p>Configure the auto-discovery-shortcuts to be dependent (B)</p> Signup and view all the answers

What is the purpose of hold-down-time in FortiGate?

<p>To delay the use of recovered members, including shortcuts. (C)</p> Signup and view all the answers

What happens when there are multiple shortcuts established between the same pair of gateways?

<p>The first shortcut established remains up (B)</p> Signup and view all the answers

What is the impact of delaying failback to recovered members in FortiGate?

<p>It provides more accurate monitoring. (C)</p> Signup and view all the answers

What is the default behavior of shortcut lifetime in relation to parent tunnels?

<p>Shortcut lifetime is independent of parent tunnels (A)</p> Signup and view all the answers

What can be done to allow multiple overlapping shortcuts between the same pair of gateways?

<p>Assign different network IDs to overlays (A)</p> Signup and view all the answers

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