Free Dell EMC D-SNC-DY-00 Exam Actual Questions

The questions for D-SNC-DY-00 were last updated On Apr 28, 2025

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Question No. 1

Which network devices route unencapsulated user traffic in a symmetric IRB overlay network?

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Correct Answer: A

In a symmetric Integrated Routing and Bridging (IRB) overlay network, the Source Virtual Tunnel End Point (VTEP) and the Destination VTEP route unencapsulated user traffic. Symmetric IRB ensures that routing occurs at both the ingress and egress VTEPs, allowing for optimized traffic flow and efficient network operations.


Dell Technologies SONiC documentation

VXLAN Configuration Guide

Question No. 2

Refer to the exhibit.

What can be determined from this show command?

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Correct Answer: B

The output of the command show qos wred-policy pfc34 shows the ECN (Explicit Congestion Notification) configuration for the policy pfc34. The line ecn: ecn_all indicates that ECN is enabled for all traffic classes (all DSCP values). Additionally, the green-min-threshold, green-max-threshold, and green-drop-probability settings are shown, but there is no indication of a 10% probability for marking traffic as congested. Therefore, the correct answer is B.


Dell Enterprise SONiC documentation

Dell Technologies InfoHub

Question No. 3

What is a correct use-case scenario for ZTP in Enterprise SONiC?

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Correct Answer: B

ZTP (Zero Touch Provisioning) is used to automate the configuration of switches, especially useful in scenarios where a failed unit needs to be replaced. By using ZTP, the switch can automatically download and apply the necessary configuration scripts upon boot-up, reducing the need for manual intervention and speeding up the deployment process.


Dell Technologies SONiC documentation

Zero Touch Provisioning Guide

Question No. 4

Refer to the exhibit.

What is the purpose of the static route?

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Correct Answer: A

The static route shown in the exhibit S* 12.0.0.0/16 via 192.168.45.254 Vlan45 is used to provide a route to the 12.0.0.0 network. This static route directs traffic destined for the 12.0.0.0/16 network through the gateway at 192.168.45.254, which is associated with VLAN 45. This configuration is typically used to ensure that traffic can reach a specific network via a defined path.


Dell Technologies SONiC Routing Guide

Dell Networking Configuration Guide

Question No. 5

What two methods can be used to upgrade or downgrade Enterprise SONiC?

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Correct Answer: A, D

Enterprise SONiC can be upgraded or downgraded using:

Boot Loader (A): The boot loader can be used to select and load different versions of the SONiC firmware.

GRUB (D): GRUB (Grand Unified Bootloader) is another method used to manage and select different SONiC firmware versions during system boot-up.


Dell Technologies SONiC documentation

SONiC Upgrade Guide