SD-WAN Intersite Connectivity JN0-1103 Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   What is a key security feature of SD-WAN intersite connectivity?

   • AUsing MPLS to ensure privacy
   • BUsing a single shared VLAN for all sites
   • CEncryption of traffic using IPsec
   • DBlocking all inbound traffic
   Reveal Solution Discussion Select an answer first
2. 7expert · hard

   An SD-WAN edge is forwarding traffic from a branch to a data center. The edge has two transports: MPLS (low latency, 50 Mbps) and broadband (high latency, 500 Mbps). The branch runs a real-time VoIP application and a bulk data replication job. The VoIP application requires latency below 30 ms, and the replication job is delay-tolerant. The MPLS link is currently at 90% utilization due to the replication job. What should the SD-WAN edge do to ensure VoIP quality?

   • AMove the replication job to broadband and steer VoIP to MPLS
   • BSteer both VoIP and replication to broadband to use the higher bandwidth
   • CKeep the replication job on MPLS and steer VoIP to broadband
   • DSteer both VoIP and replication to MPLS to ensure low latency for all
   Reveal Solution Discussion Select an answer first
4. 8expert · hard

   A network architect is designing an SD-WAN overlay. The underlay consists of MPLS, broadband, and LTE links. The architect must ensure that the overlay is secure and that it can use any of the underlay transports interchangeably. Which design decision is most important to achieve this?

   • ARelying on the underlay's native security (e.g., MPLS VPN) without an overlay
   • BUsing GRE tunnels without IPsec to reduce overhead
   • CEstablishing independent IPsec tunnels over each underlay transport, with the overlay abstracting the transport differences
   • DUsing a single IPsec tunnel that is bound to the MPLS link only
   Reveal Solution Discussion Select an answer first
5. 9application · medium

   An SD-WAN edge has two transports: a 100 Mbps MPLS link and a 500 Mbps broadband link. The site runs VoIP, video conferencing, and email. The SD-WAN policy must ensure that VoIP and video are not degraded when the broadband link is congested. Which QoS mechanism should the SD-WAN design use?

   • ADisable QoS on the broadband link and rely on the MPLS link for all real-time traffic
   • BApply the same DSCP marking to all traffic and use FIFO queuing
   • CClassify traffic, mark VoIP and video with higher DSCP values, and use priority queuing for those classes
   • DUse round-robin scheduling for all queues
   Reveal Solution Discussion Select an answer first
6. 10application · easy

   A company currently uses a traditional WAN with a single MPLS circuit at each branch. They are considering SD-WAN to improve reliability and reduce cost. The company wants to add a broadband circuit at each branch and use both circuits for active traffic. Which benefit does SD-WAN provide in this scenario?

   • AIt automatically uses both MPLS and broadband for active traffic, providing transport diversity and failover
   • BIt eliminates the need for MPLS entirely
   • CIt provides no benefit because broadband is less reliable than MPLS
   • DIt requires the broadband circuit to be a backup only, never carrying active traffic
   Reveal Solution Discussion Select an answer first