Configure Performance Service-Level Agreements (SLA) NSE5-SD-WAN-CORE-ADMINISTRATOR Practice Questions (Page 3)

Questions 11–15

1. 11expert · hard

   An administrator is troubleshooting an SD-WAN link that is flapping between 'up' and 'down' states. The SLA target is configured with a latency threshold of 80 ms, jitter of 10 ms, and loss of 1%. The probe interval is 1 second, and the failure count is 1. The link's latency is typically 75 ms but spikes to 85 ms for 1-2 seconds every few minutes. What is the most effective way to reduce the flapping?

   • ASet the packet loss threshold to 0%.
   • BDecrease the probe interval to 500 ms.
   • CIncrease the latency threshold to 90 ms.
   • DIncrease the failure count to 5.
   Reveal Solution Discussion Select an answer first
2. 12foundation · medium

   When configuring an ICMP probe for SLA monitoring, what does the 'source interface' setting determine?

   • AThe maximum number of probes sent per second
   • BThe destination IP address of the probe
   • CThe VLAN ID used for the probe packets
   • DWhich SD-WAN member interface the probe packets are sent from
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4. 13expert · hard

   An administrator is configuring an SLA target for a link that carries both VoIP and bulk data transfer. The VoIP traffic is sensitive to jitter, while the data transfer is sensitive to packet loss. The administrator wants to avoid failover for VoIP due to a brief jitter spike, but wants to failover for data if packet loss exceeds 2% for more than 10 seconds. What is the best way to configure the SLA?

   • ACreate two separate SLA targets: one for VoIP with a jitter threshold and a high failure count, and one for data with a loss threshold and a low failure count.
   • BCreate one SLA target with both jitter and loss thresholds, and set the failure count to 5.
   • CSet the jitter threshold to 0 ms and the loss threshold to 0% to ensure the link is always up.
   • DUse passive monitoring to measure actual traffic and avoid the need for SLA targets.
   Reveal Solution Discussion Select an answer first
5. 14application · medium

   A network administrator is reviewing the SD-WAN SLA dashboard and sees that a member link has been 'up' for the last 24 hours, but the 'SLA compliance' percentage is only 85%. The link's average latency is 50 ms, jitter is 5 ms, and loss is 0%. The SLA target is configured with latency 60 ms, jitter 10 ms, and loss 1%. What does the 85% compliance indicate?

   • AThe link was down for 15% of the time during the last 24 hours.
   • BThe link's packet loss was 15% during the last 24 hours.
   • CThe link met the SLA thresholds for 85% of the time, meaning it exceeded the latency threshold for 15% of the time.
   • DThe link's SLA target is misconfigured and needs to be adjusted.
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6. 15application · medium

   A branch office has two SD-WAN links: Link A (MPLS) and Link B (broadband). The SLA target for Link A has a latency threshold of 70 ms. The SLA target for Link B has a latency threshold of 120 ms. Currently, Link A's latency is 65 ms and Link B's latency is 110 ms. Both links are 'up'. A new SD-WAN rule for VoIP traffic is configured with 'Best Quality' strategy. Which link will be selected for VoIP traffic?

   • ALink A, because it has lower latency and meets its stricter SLA threshold.
   • BNeither link will be selected because both are close to their thresholds.
   • CLink B, because it has a higher latency threshold and is therefore considered more reliable.
   • DBoth links will be used in a load-balancing fashion.
   Reveal Solution Discussion Select an answer first