Exam SD-WAN-Engineer Topic 3 Question 30 Discussion
Actual exam question for Palo Alto Networks's SD-WAN-Engineer exam
Question #: 30
Topic #: 3
Question #: 30
Topic #: 3
When planning a software upgrade for a large fleet of ION devices, what is the recommended best practice regarding the "Software Version" assigned in the Site Summary?
Suggested Answer: C Vote an answer
Comprehensive and Detailed Explanation
The best practice for managing upgrades in a large-scale Prisma SD-WAN environment is the Canary or Phased Rollout approach, utilizing Site Tags.
* Risk Mitigation: Upgrading all sites simultaneously (Option B) is highly risky. If the new software version has an unforeseen bug or compatibility issue with a specific circuit type, the entire network could face an outage.
* Tag-Based Management: Administrators should create tags such as "Upgrade-Phase-1" (Pilot sites) or
"Region-North". By assigning the specific Software Version to the Tag (rather than the individual site or the global default), the controller pushes the update only to that subset of devices.
* Procedure:
* Apply update to "Pilot" tag (5 sites). Monitor for 24-48 hours.
* Apply update to "Region-1" tag (50 sites). Monitor.
* Eventually, update the Global default once confidence is high.
Option A is unscalable, and Option D is incorrect as the administrator retains full control over when upgrades occur; they are not forced automatically without policy configuration.
The best practice for managing upgrades in a large-scale Prisma SD-WAN environment is the Canary or Phased Rollout approach, utilizing Site Tags.
* Risk Mitigation: Upgrading all sites simultaneously (Option B) is highly risky. If the new software version has an unforeseen bug or compatibility issue with a specific circuit type, the entire network could face an outage.
* Tag-Based Management: Administrators should create tags such as "Upgrade-Phase-1" (Pilot sites) or
"Region-North". By assigning the specific Software Version to the Tag (rather than the individual site or the global default), the controller pushes the update only to that subset of devices.
* Procedure:
* Apply update to "Pilot" tag (5 sites). Monitor for 24-48 hours.
* Apply update to "Region-1" tag (50 sites). Monitor.
* Eventually, update the Global default once confidence is high.
Option A is unscalable, and Option D is incorrect as the administrator retains full control over when upgrades occur; they are not forced automatically without policy configuration.
by Lucien at Sep 14, 2026, 01:13 PM
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