Dell SONiC Deploy Practice Test

Skills this practice test covers

• Match an Enterprise SONiC bundle to the features a network needs.
• Install SONiC through ONIE by hand or automatically, and set up ZTP.
• Configure port groups, port breakout, trunk and access ports, and LAGs.
• Build switch redundancy with MC-LAG and gateway redundancy with VRRP.
• Route traffic with static routes, single-area OSPF, BGP and PBR.
• Configure BGP EVPN for VXLAN with asymmetric and symmetric IRB.

6 domains · 31 topics · 190 of 194 questions sorted by domain

Requirements

• No formal prerequisites: Dell asks for enough knowledge from hands-on product experience or its recommended training.
• Recommended: one to two years of network administration or engineering, with Layer 2 and Layer 3 skills.
• Recommended: familiarity with the Linux command line and with protocols such as OSPF, BGP and VXLAN.
• Recommended: hands-on experience with Dell PowerSwitch platforms.

About the D-SNC-DY-00 exam

How to earn the certification

Earns

Dell Technologies Proven Professional SONiC Deploy CertifiedSpecialist

Before

• D-NWG-FN-23 Dell Networking Foundations 2023

  Optional. Dell's foundations-level networking exam, a starting point for those new to Dell networking.

How to prepare for D-SNC-DY-00

1. 1

   Turn the topic list into labs

   Dell's exam description lists every topic, from comparing bundles to configuring QoS. Turn each 'Configure and verify' topic into a lab task, and each 'Describe' topic into a short written explanation.

2. 2

   Install SONiC three ways

   On a lab switch, install SONiC from the ONIE boot menu, then repeat with ONIE automatic discovery. Finish with a ZTP run that pulls a configuration file from a server.

3. 3

   Give configuration and routing most time

   SONiC Configuration and Routing are the two largest domains. Build trunks, LAGs, MC-LAG and VRRP first, then add OSPF, BGP, ECMP and a PBR policy on top.

4. 4

   Draw both IRB traffic flows

   Sketch one packet crossing the fabric with asymmetric IRB, then with symmetric IRB. Mark where each VTEP routes or bridges, and which VNI the packet carries.

5. 5

   Review every miss in Study Mode

   Take the D-SNC-DY-00 practice test in Timed Mode, then go back over each missed question in Study Mode. Ask Brainy AI Assistant about any EVPN route type or ZTP step that is still unclear.

   Start a timed D-SNC-DY-00run

Dell recommends the on-demand course Enterprise SONiC Distribution by Dell Technologies Deploy (ESNETD06103). Its modules can also be taken one by one, from installation and MCLAG to VXLAN BGP EVPN, Q-in-Q and QoS.

Who D-SNC-DY-00 is for

• Network engineers who deploy Enterprise SONiC on Dell PowerSwitch switches in a data center.
• Data center network administrators who run VXLAN fabrics with BGP EVPN.
• Network architects who design SONiC-based networks and want hands-on skills.
• DevOps engineers who automate switch setup with ZTP.

Typical job titles: Data center network engineer · Network engineer · Network administrator · Network architect · DevOps engineer

D-SNC-DY-00 glossary

19 terms from the exam objectives and the vendor's official material, each defined in a sentence.

Asymmetric IRB

A VXLAN routing model in which the ingress VTEP routes and bridges and the egress VTEP only bridges, so every VTEP needs every VLAN.

BGP EVPN

BGP carrying Ethernet VPN routes, used as the control plane that tells each VTEP which MAC and IP addresses sit behind which VTEP.

Enterprise SONiC Distribution by Dell Technologies

Dell's supported edition of the SONiC network operating system, built to run on Dell PowerSwitch switches.

Equal Cost Multi-Pathing

ECMP: spreading traffic over several routes that have the same cost to one destination, instead of using only one.

FRRouting (FRR)

The open-source routing suite that runs protocols such as BGP and OSPF inside SONiC.

ICCP (Inter-Chassis Communication Protocol)

The protocol that two MC-LAG peer switches use to share state, so that they act as one LAG partner.

MC-LAG

Multi-chassis link aggregation: two switches act as one LAG partner, so a server can connect to both with one bundle of links.

Open Network Install Environment (ONIE)

A small boot-time installer on open networking switches that loads a network operating system such as SONiC.

Policy-Based Routing (PBR)

Forwarding chosen traffic by a policy, for example by source address, instead of by the normal routing table.

Port breakout

Splitting one high-speed port into several lower-speed ports, usually with a breakout cable.

Port groups

Sets of ports that share one speed setting, so changing the group's speed changes every port in it.

Q-in-Q

Adding a second, outer VLAN tag to frames that already carry a customer VLAN tag, so many customer VLANs travel inside one VLAN.

Route redistribution

Passing routes learned one way, such as static routes or OSPF routes, into another routing protocol.

Symmetric IRB

A VXLAN routing model in which both the ingress and the egress VTEP route, using an L3 VNI for each VRF.

Virtual Router Redundancy Protocol

VRRP: a protocol that lets two routers share one virtual gateway address, so hosts keep a gateway if one router fails.

VLAN translation

Changing a frame's VLAN ID as it enters or leaves a port, so networks that use different VLAN numbers can connect.

VNI

VXLAN Network Identifier: the number in the VXLAN header that names a Layer 2 segment, much as a VLAN ID does.

VTEP

VXLAN Tunnel Endpoint: the switch that adds and removes the VXLAN header as traffic enters and leaves the overlay.

Zero Touch Provisioning (ZTP)

A process in which a new switch fetches its configuration and scripts from a server at first boot, with nobody at the console.