SD-WAN-Engineer Practice Test 13 — 15 Questions

Question 1

Which TWO indicators would lead you to believe that a site's WAN transport is oversubscribed?

Accepted Answer

Increased packet loss during peak business hours.. High latency and packet loss under load are classic signs of oversubscription.

Answer

Constant low temperature on the device.

Answer

Consistent BGP session drops.

Answer

Low CPU utilization on the edge device.

Question 2

Which TWO features are used to monitor the performance of an application across the SD-WAN?

Accepted Answer

Path performance metrics. Performance monitoring uses traffic flow data and path statistics.

Answer

Physical port speed

Answer

Device power consumption

Answer

User social media activity

Question 3

Where do you go in vManage to generate a report on historical bandwidth utilization for a specific site?

Accepted Answer

Monitor > Reports.. vManage provides a Reporting section specifically for historical analysis of interface and application metrics.

Answer

Configuration > Templates.

Answer

Administration > Maintenance.

Answer

Tools > Logs.

Question 4

A retail customer needs to prioritize POS (Point of Sale) traffic over guest WiFi. Which policy type governs this bandwidth allocation?

Accepted Answer

QoS Policy. QoS policies allow for traffic prioritization and bandwidth limits per service/application.

Answer

Security Policy

Answer

Route Policy

Answer

Access Policy

Question 5

A specific branch is failing to steer traffic via the preferred ISP despite a defined Path Policy. What is the most likely cause?

Accepted Answer

Incorrect application identification. Application definitions often rely on IP ranges or DSCP tags that may not match if traffic is incorrectly identified.

Answer

License expiry

Answer

Restart the WAN interface

Answer

Controller outage

Answer

BGP cost is too high

Question 6

Which THREE parameters are part of the HA state synchronization process?

Accepted Answer

Interface administrative state.. HA state sync includes local routing, device configuration, and tunnel session state.

Answer

Fan speed.

Answer

Power supply voltage.

Question 7

Which feature should you examine if traffic is not being steered based on the application category?

Accepted Answer

Application Identification Settings. If application identification is failing, the SD-WAN policies cannot match the traffic correctly.

Answer

NAT Settings

Answer

VLAN Configuration

Answer

DHCP Settings

Question 8

Which THREE methods can be used to troubleshoot application identification issues?

Accepted Answer

Perform a Packet Capture. Packet captures, flow monitoring, and testing with specific traffic generators help verify identification.

Answer

Check the BGP table

Answer

Reboot the router

Question 9

Which THREE components are verified during the ION device 'check' sequence at startup?

Accepted Answer

Link status. The startup sequence checks physical links, controller reachability, and basic configuration integrity.

Answer

Cloud application popularity

Answer

User browser history

Question 10

You are designing a hub-and-spoke topology where spokes need to communicate directly under specific conditions. Which feature should be enabled to optimize latency and minimize load on the regional hub?

Accepted Answer

Dynamic Mesh. Dynamic Mesh allows spokes to build direct tunnels to each other bypassing the hub when policy requirements are met.

Answer

Hub-to-Hub Transit

Answer

BGP Route Reflector

Answer

Global VPN Overlay

Question 11

Which Prisma SD-WAN feature enables the automatic configuration of security parameters for a new gateway?

Accepted Answer

Security Template. The security template is a container that holds policies, which are applied to gateways during provisioning.

Answer

Firewall Rule set

Answer

Zone Configuration

Answer

Credential Vault

Question 12

When designing a multi-tenant environment, how does the Prisma SD-WAN Controller ensure that management traffic is separated for each entity?

Accepted Answer

Logical Tenant Partitioning. The Controller uses multi-tenancy constructs where each tenant is logically partitioned.

Answer

Shared Management VLANs

Answer

Client-side tunnel encryption only

Answer

Dedicated physical interfaces

Question 13

During the design of a large-scale data center migration, you need to extend Layer 2 domains across the SD-WAN fabric. Which mechanism supports this requirement?

Accepted Answer

L2-Over-SD-WAN (L2VPN). Prisma SD-WAN supports L2 extension through encapsulation over the SD-WAN overlay.

Answer

STP Bridge Group

Answer

Proxy ARP

Answer

BGP EVPN

Question 14

Which Prisma SD-WAN tool is used to monitor real-time health and performance of the SD-WAN fabric during the deployment phase?

Accepted Answer

Controller Dashboard. The Prisma SD-WAN Controller provides the dashboard and analytics tools for monitoring.

Answer

SNMP Traps

Answer

CLI Debugging

Answer

Packet Capture (PCAP)

Question 15

A branch site reports intermittent application slowness. Which tool in the Prisma SD-WAN ION dashboard is best for viewing real-time latency and jitter metrics per path?

Accepted Answer

Path Quality. The Path Quality dashboard provides real-time visibility into path performance metrics including loss, latency, and jitter.

Answer

BGP Neighbors

Answer

Flow Summary

Answer

Security Events