SD-WAN-Engineer Practice Test 2 — 30 Questions

Question 1

When performing a 'Soft Shutdown' on an HA device, what is the expected behavior?

Accepted Answer

The device gracefully transitions the active state to the standby device.. A soft shutdown allows the active unit to relinquish its role gracefully to the standby unit.

Answer

The device disables all interfaces without notifying the peer.

Answer

The device immediately reboots.

Answer

The device enters a maintenance mode that clears all routes.

Question 2

In a multi-homed DCI scenario, you are seeing asymmetric routing. What is the most likely cause within the OMP domain?

Accepted Answer

The TLOC preference is higher on one of the exit points, causing traffic to prefer that path for return.. Asymmetry occurs when the return path preference differs from the forward path due to OMP path attribute configurations.

Answer

The MTU size is different on the DCI interfaces.

Answer

The site IDs are identical.

Answer

BFD is disabled on one of the links.

Question 3

When DCI links are used to extend Layer 2, what must you ensure is configured to prevent broadcast storms?

Accepted Answer

STP or a loop prevention mechanism on the bridged interfaces.. L2 extension requires loop prevention mechanisms like BPDU guard or storm control.

Answer

Set all interfaces to 'trunk' mode.

Answer

Increase the MTU size.

Answer

Disable OMP for the L2 interfaces.

Question 4

Which THREE actions occur when a device transitions to 'Active' status in an HA pair?

Accepted Answer

The device restarts its BFD sessions.. The transition triggers BFD, OMP advertisement, and interface reactivation.

Answer

The device initiates a factory reset.

Answer

The device purges all log history.

Question 5

A network architect is designing a branch site deployment requiring sub-second failover. Which Prisma SD-WAN component must be configured to prioritize real-time traffic across multiple transport paths based on path quality metrics?

Accepted Answer

Performance Routing (PFR) Policy. Performance Routing (PFR) policies are configured to monitor path quality and dynamically steer traffic.

Answer

Traffic Policing Rule

Answer

NAT Control Policy

Answer

Access Control List (ACL)

Question 6

Which THREE OMP attributes can be used to influence path selection for DCI?

Accepted Answer

TLOC Preference.. TLOC preference, OMP cost, and OMP tag are standard attributes for path manipulation.

Answer

System IP.

Answer

Device Serial Number.

Question 7

A customer wants to deploy a Hub-and-Spoke model with redundant hubs. What must be configured to ensure seamless transition if the primary hub fails?

Accepted Answer

Hub Priority and Failover settings. Configuring redundant hubs in the controller allows the spokes to fail over to the secondary hub automatically.

Answer

IPsec Key Exchange

Answer

Static Route redistribution

Answer

BGP Multi-homing

Question 8

Which command or interface path is used to verify the status of the SD-WAN tunnel between two branch sites?

Accepted Answer

Controller > Monitoring > Tunnels. The Dashboard or the 'show' commands in the CLI allow for tunnel status verification.

Answer

Configuration > Sites > WAN Interfaces

Answer

Policies > Security > Rules

Answer

Network > Routing > BGP

Question 9

Which TWO features are included in the vManage 'Monitor' menu?

Accepted Answer

Device health and status.. The Monitor menu is the central hub for observing the SD-WAN fabric performance.

Answer

User management.

Answer

Policy configuration.

Answer

Software image repository.

Question 10

You are configuring a branch site with a dual-ISP setup. What is the correct order of operations for defining transport interfaces?

Accepted Answer

Configure IP, then assign interface to a WAN transport type. Interfaces must be defined in the inventory, then assigned as transport in the site configuration.

Answer

Enable IPSec, then configure interface

Answer

Enable BGP, then configure WAN interface

Answer

Assign WAN interface to Transport group, then define IP

Question 11

Which factors should be considered when designing the placement of a regional hub in a Prisma SD-WAN architecture? (Choose TWO)

Accepted Answer

Latency to branch locations. Latency to branch sites and proximity to data centers are critical for hub design.

Answer

The ISP's billing cycle

Answer

The color of the hardware

Answer

The number of local users

Question 12

You are debugging a routing loop. Which tool can you use to see the BGP route advertisements received by an ION device?

Accepted Answer

Route Monitoring. The BGP neighbor status and route tables in the device monitoring show learned routes.

Answer

Path Quality

Answer

Flow Summary

Answer

Interface Stats

Question 13

You have configured two different DCI paths. You want to load balance traffic across both paths. What OMP configuration must be set?

Accepted Answer

Ensure TLOC preference and OMP costs are identical on both paths.. Equal cost multi-path (ECMP) requires identical OMP attributes.

Answer

Disable BFD on both paths.

Answer

Configure a unique site ID for each path.

Answer

Set the OMP administrative distance to 1.

Question 14

Which protocol is utilized for the auto-discovery of Prisma SD-WAN Gateways during site provisioning?

Accepted Answer

ZTP (Zero Touch Provisioning). The Zero-Touch Provisioning (ZTP) process uses the controller to push configurations after the gateway registers via the secure cloud portal.

Answer

SNMP

Answer

RIPv2

Answer

TFTP

Question 15

A company is migrating to a cloud-native architecture. How does Prisma SD-WAN support multi-cloud connectivity?

Accepted Answer

Virtual Gateways (vGateways). Through CloudBlades and virtual gateways (vGateways) deployed in public cloud VPCs/VNets.

Answer

Manual BGP peering with ISPs

Answer

Physical site-to-site VPNs only

Answer

Cloud-only routing protocols

Question 16

What is the primary function of the CloudBlades platform in the Prisma SD-WAN architecture?

Accepted Answer

API-based service integration. CloudBlades is the API integration platform that allows for seamless integration with third-party cloud services.

Answer

Encryption key rotation

Answer

Hardware acceleration

Answer

Local breakout management

Question 17

Which Prisma SD-WAN interface is used to connect to the local LAN?

Accepted Answer

LAN Interface. The LAN-side interface connects to switches, servers, and internal users.

Answer

Tunnel Interface

Answer

Management Interface

Answer

WAN Interface

Question 18

What are the primary benefits of implementing a hub-and-spoke design with Prisma SD-WAN? (Choose THREE)

Accepted Answer

Simplified management and visibility. Centralized security, easier management, and traffic grooming are benefits of hub-and-spoke.

Answer

Hardware-less branch deployments

Answer

Infinite bandwidth at the branch

Question 19

Which of these tasks are part of the pre-deployment planning phase for Prisma SD-WAN? (Choose TWO)

Accepted Answer

Validating WAN link connectivity. Assessing current bandwidth usage and identifying critical applications are vital first steps.

Answer

Negotiating new ISP contracts

Answer

Updating the firmware on end-user laptops

Answer

Painting the office walls

Question 20

A customer requires a granular segmentation strategy where HR, Engineering, and Guest traffic must remain isolated across the SD-WAN fabric. Which configuration construct provides this logical separation?

Accepted Answer

Virtual Networks (VNets). Virtual Networks (VNets) allow for the logical segmentation of traffic throughout the fabric.

Answer

IPsec Tunnel Groups

Answer

Subnet Masking

Answer

VLAN Tagging