View Full Palo Alto Networks SD-WAN-Engineer Exam Dumps and Practice Test Dumps.

 

Question 361

What is the primary purpose of an ION device site association?

1. To define the device’s physical chassis size
2. To identify which site configuration applies to the device
3. To create a user account
4. To replace the controller

Correct Answer: 2

Explanation

An ION device site association identifies the site configuration that should apply to the device. Site-level configuration provides the context in which policies, network settings, circuits, and other SD-WAN objects are interpreted. Without the correct association, a device may not receive or operate with the intended configuration even when it is otherwise connected. Chassis size and user accounts are unrelated to this relationship, and the site association does not replace the centralized controller. During onboarding or replacement, administrators should verify that the device is assigned to the intended site and that the expected configuration is being applied.

Question 362

An ION device has been installed, but it is not appearing as expected in centralized management. What should be verified first?

1. Management connectivity and device registration
2. QoS class names
3. Application descriptions
4. DNS record age

Correct Answer: 1

Explanation

Management connectivity and device registration should be verified first when an installed ION device does not appear as expected in centralized management. The device needs appropriate connectivity to communicate with the controller and must complete the required registration or activation process. Checking QoS class names or application descriptions would not establish whether the device can communicate with the management infrastructure. DNS information can matter in some connectivity situations, but it should be investigated as part of broader management reachability rather than assumed to be the primary issue. A layered onboarding check helps isolate registration problems efficiently.

Question 363

Why is device identity important during ION onboarding or replacement?

1. It determines the monitor resolution
2. It assigns application priorities automatically
3. It ensures the intended device is associated with the correct managed configuration
4. It creates Internet bandwidth

Correct Answer: 3

Explanation

Device identity is important because centralized management must associate the physical or virtual ION device with the intended managed configuration. During onboarding or replacement, an incorrect identity association can result in the wrong device being assigned to a site or configuration. Application priorities and Internet bandwidth are not created by device identity, and monitor resolution is irrelevant. Administrators should verify the device identifier, site assignment, and registration status when replacing hardware. This ensures that the replacement device receives the appropriate configuration and participates in the SD-WAN deployment according to the intended design.

Question 364

Which action is most appropriate after replacing an ION device at an existing site?

1. Verify device identity, site association, and operational status
2. Remove all routing protocols
3. Disable every security rule
4. Delete all application definitions

Correct Answer: 1

Explanation

After replacing an ION device, administrators should verify its identity, site association, and operational status. These checks confirm that the replacement device is recognized correctly and is receiving the configuration intended for that site. Routing protocols, security policies, and application definitions should not be removed simply because hardware was replaced. Additional validation should include interfaces, circuits, controller connectivity, tunnels, routing, and policy behavior where applicable. A replacement should restore the previous service design rather than introduce unnecessary configuration changes. Verifying the complete operational state helps ensure that the new device is functioning correctly.

Question 365

What is the main reason to use a maintenance window for an ION software upgrade?

1. To increase application latency
2. To avoid monitoring the device
3. To provide a controlled period for possible service interruption and validation
4. To change user credentials

Correct Answer: 3

Explanation

A maintenance window provides a controlled period in which an ION software upgrade can be performed while allowing administrators to manage potential service interruption and complete post-upgrade validation. Software changes can temporarily affect device connectivity or traffic processing, so scheduling the activity during an approved window reduces operational risk. The purpose is not to increase latency, disable monitoring, or change user credentials. Before the upgrade, administrators should confirm prerequisites and compatibility. Afterward, they should verify device health, controller connectivity, interfaces, circuits, routing, tunnels, and application traffic to confirm normal operation.

Question 366

Which validation is especially important immediately after an ION upgrade?

1. Confirm device health and controller connectivity
2. Change all QoS classes
3. Remove backup circuits
4. Recreate every application

Correct Answer: 1

Explanation

Confirming device health and controller connectivity is especially important immediately after an ION upgrade. These checks establish that the device successfully returned to normal operation and can communicate with centralized management. Administrators should also verify interfaces, WAN circuits, tunnels, routing, and important application traffic when appropriate. Changing QoS classes, removing backup circuits, or recreating applications is unnecessary unless a separate configuration requirement exists. Post-upgrade validation should compare the operational state against the expected baseline. This approach can quickly identify upgrade-related problems before they affect users for an extended period.

Question 367

Which interface type provides a logical Layer 3 endpoint that is not tied directly to a physical WAN port?

1. Circuit interface
2. Loopback interface
3. Controller cable
4. DHCP relay

Correct Answer: 2

Explanation

A loopback interface provides a logical Layer 3 endpoint that is independent of a particular physical WAN port. Because it is logical, it can provide a stable addressing point for supported networking functions even when individual physical interfaces change state. A circuit represents a WAN connectivity configuration, while a DHCP relay forwards address-assignment requests across Layer 3 boundaries. A controller cable is not an interface type. Administrators should distinguish logical interfaces from physical interfaces when designing addressing, routing, and troubleshooting strategies, because their operational behavior and dependencies are different.

Question 368

A branch must carry multiple VLANs over one physical Ethernet connection. Which configuration concept is most relevant?

1. VLAN subinterfaces
2. BGP communities
3. NAT pools
4. Performance probes

Correct Answer: 1

Explanation

VLAN subinterfaces are relevant when multiple VLANs need to be carried over a single physical Ethernet connection. Each logical subinterface can represent a separate VLAN and provide the appropriate Layer 3 connectivity while sharing the physical interface. BGP communities are routing attributes, NAT pools relate to address translation, and performance probes measure connectivity or service behavior. When troubleshooting VLAN subinterfaces, administrators should verify VLAN identifiers, tagging behavior, parent-interface configuration, addressing, and associated routing or policy requirements. A mismatch in VLAN configuration can prevent traffic from reaching the intended logical network.

Question 369

What is the key distinction between a DHCP server and a DHCP relay?

1. A relay forwards DHCP requests toward a DHCP server
2. A relay always performs NAT
3. A server only forwards routing updates
4. A server measures WAN jitter

Correct Answer: 1

Explanation

A DHCP relay forwards DHCP requests between clients and a DHCP server when the server is located across a Layer 3 boundary. This allows clients on a remote subnet to obtain address configuration without requiring a separate DHCP server on every local network. A DHCP server actually provides the address leases and related configuration information. NAT, routing updates, and WAN jitter measurement are separate functions. When remote clients cannot obtain addresses, administrators should check the relay configuration, reachability to the DHCP server, VLAN or interface configuration, and relevant network policies.

Question 370

A remote VLAN cannot obtain DHCP addresses, while local VLANs work correctly. What should be investigated?

1. The remote VLAN’s relay configuration and reachability to the DHCP server
2. The monitor’s refresh rate
3. The browser cache
4. The QoS class name

Correct Answer: 1

Explanation

If a remote VLAN cannot obtain DHCP addresses while local VLANs work correctly, the remote VLAN’s relay configuration and reachability to the DHCP server should be investigated. The problem may involve an incorrect relay address, interface or VLAN configuration, routing, or a policy blocking DHCP communication. Since local VLANs already work, the investigation can focus on the path and configuration specific to the remote network. Monitor settings, browser cache, and QoS class names do not normally affect DHCP address assignment. Checking packet flow and relay behavior can help identify where the DHCP exchange is failing.

Question 371

Which routing feature allows routes learned from one routing source to be introduced into another routing domain?

1. Route redistribution
2. QoS marking
3. Application fingerprinting
4. Destination NAT

Correct Answer: 1

Explanation

Route redistribution allows routes learned through one routing source or protocol to be introduced into another routing domain or protocol. This can be useful when different parts of a network use different routing mechanisms and need controlled exchange of reachability information. Redistribution should be designed carefully because unrestricted exchange can introduce unnecessary or conflicting routes. QoS marking, application fingerprinting, and destination NAT perform different functions. Administrators should also consider filtering, route attributes, and redistribution direction when troubleshooting unexpected routes or unintended forwarding behavior resulting from multiple routing sources.

Question 372

What is a major benefit of route filtering when redistributing routes?

1. It limits which prefixes are allowed to propagate
2. It increases monitor brightness
3. It changes application names
4. It disables all dynamic routing

Correct Answer: 1

Explanation

Route filtering limits which prefixes are allowed to propagate during routing exchanges or redistribution. This helps administrators control the routing information shared between network domains and prevents unnecessary or unintended prefixes from entering another routing table. Proper filtering can reduce routing complexity and help avoid undesirable forwarding paths. It does not disable all dynamic routing or affect application names or monitor settings. When implementing filters, administrators should confirm that required prefixes remain permitted and that the resulting routing tables contain the expected destinations. An overly restrictive filter can itself create connectivity problems.

Question 373

A route unexpectedly appears in a routing table after redistribution is enabled. What is a likely area to inspect?

1. Redistribution policy and route filters
2. Monitor resolution
3. Application icon
4. Keyboard settings

Correct Answer: 1

Explanation

Redistribution policy and route filters are likely areas to inspect when an unexpected route appears after redistribution is enabled. Redistribution can introduce prefixes from one routing source into another, and insufficient filtering may allow routes that were not intended for propagation. Administrators should identify the route’s source, review redistribution direction and conditions, and examine applicable filters or route policies. Monitor resolution, application icons, and keyboard settings are unrelated. Understanding where the route originated and why it was accepted provides a more reliable troubleshooting path than simply deleting the route from the routing table.

Question 374

Why can an overly restrictive routing filter cause an application outage?

1. It can prevent a required destination prefix from being learned or advertised
2. It automatically changes application permissions
3. It increases available WAN bandwidth
4. It creates a new VLAN

Correct Answer: 1

Explanation

An overly restrictive routing filter can cause an application outage by preventing a required destination prefix from being learned, accepted, or advertised. The physical network may remain operational, but the affected device may no longer have a valid route toward the application destination. Administrators should compare the required prefixes with the prefixes actually present in routing tables and advertisements. Application permissions, WAN bandwidth, and VLAN creation are separate concerns. When a route disappears after a policy change, checking filtering and redistribution behavior is often more productive than immediately changing application or security settings.

Question 375

What does an Advanced NAT Stack provide in a policy design?

1. A structured way to organize multiple NAT policy rules
2. A replacement for routing protocols
3. A physical WAN interface
4. A method for measuring jitter

Correct Answer: 1

Explanation

An Advanced NAT Stack provides a structured way to organize multiple NAT policy rules so that different translation requirements can be handled according to configured precedence and matching conditions. This is useful when a deployment contains several translation scenarios that need different treatment. It does not replace routing protocols, create physical interfaces, or measure jitter. When troubleshooting NAT behavior, administrators should examine the applicable stack, rule order, match criteria, source and destination information, and translation action. Reviewing the effective rule is important when traffic appears to receive an unexpected address translation.

Question 376

An application is being translated when it should retain its original source address. What should be checked?

1. NAT rule matching and whether a No NAT rule applies
2. Monitor refresh interval
3. BGP hold timer only
4. Application icon

Correct Answer: 1

Explanation

NAT rule matching and whether a No NAT rule applies should be checked when an application is translated even though its original source address should be preserved. Administrators should verify the source and destination criteria, zones or interfaces where applicable, rule order, and the effective NAT action. A more general translation rule may be matching before the intended No NAT behavior. Monitor settings and application icons are unrelated, while BGP timers do not directly determine NAT translation. Examining the actual session attributes against the ordered NAT configuration helps identify why translation occurred.

Question 377

Which overlay option is designed to provide Prisma SD-WAN VPN connectivity between sites?

1. Direct
2. Prisma SD-WAN VPN
3. Physical Ethernet
4. DHCP Relay

Correct Answer: 2

Explanation

Prisma SD-WAN VPN is the overlay option specifically designed to provide Prisma SD-WAN VPN connectivity between sites. An overlay establishes logical connectivity across underlying WAN transports while abstracting some of the details of the physical network. Direct connectivity represents a different overlay choice, while physical Ethernet is an underlying network medium rather than an overlay type. DHCP relay is unrelated to site-to-site overlay connectivity. When troubleshooting an overlay, administrators should first verify the underlying circuit and reachability, then examine tunnel or overlay status and finally review routing and security requirements.

Question 378

A tunnel is established between two sites, but an application still cannot communicate. What should be checked next?

1. Routing and security policy for the application traffic
2. Monitor size
3. Keyboard language
4. Desktop wallpaper

Correct Answer: 1

Explanation

If an overlay tunnel is established but an application still cannot communicate, routing and security policy for the application traffic should be checked next. A tunnel indicates that logical connectivity may exist, but it does not automatically guarantee that the required destination route is present or that the application is permitted through security controls. Administrators should verify routes, source and destination zones, application or service matching, NAT behavior, and relevant policy rules. Checking unrelated endpoint appearance settings will not resolve the network problem. Layered validation helps distinguish tunnel establishment from actual application reachability.

Question 379

Why should effective configuration be reviewed after changing a centralized SD-WAN policy?

1. To confirm that the intended policy was deployed and is actually influencing traffic
2. To increase physical circuit speed
3. To replace all routing protocols
4. To remove application identification

Correct Answer: 1

Explanation

Reviewing effective configuration after a centralized SD-WAN policy change helps confirm that the intended policy was deployed and is actually influencing traffic. A configuration may exist centrally but still require correct site association, deployment, policy ordering, or matching conditions before the expected behavior occurs. Administrators should compare the intended configuration with the effective device state and then validate actual traffic behavior. Policy changes do not increase physical circuit speed, replace routing protocols, or remove application identification. Effective-state verification is therefore an important step between configuration deployment and operational validation.

Question 380

Which combination provides the most complete validation after a major SD-WAN configuration change?

1. Check only the management dashboard
2. Check only interface status
3. Validate device health, connectivity, routing, policy behavior, and affected applications
4. Restart every endpoint

Correct Answer: 3

Explanation

A complete post-change validation should include device health, connectivity, routing, policy behavior, and the affected applications. Checking only the management dashboard or interface status can miss problems that occur at routing, overlay, security, NAT, QoS, or application layers. Restarting endpoints is not an appropriate substitute for structured validation. Administrators should confirm that devices remain connected, expected routes are present, relevant policies are effective, and application traffic follows the intended path and access rules. This end-to-end approach provides stronger evidence that the configuration change achieved its intended operational result without introducing secondary issues.