D-SNC-DY-00 Dumps Updated Mar 31, 2025 Practice Test and 47 unique questions
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NEW QUESTION # 19
What are three characteristics of VLAN translation?
- A. SVLAN configuration for both Q-in-Q VLAN tunneling and VLAN translation is possible on the same interface.
- B. The SVLAN header is replaced with a VNI if the provider network uses a VXLAN overlay.
- C. By default, VLAN stacking is enabled on Z9432F-ON switches.
- D. VLAN translation is not supported on MC-LAG port channel interfaces.
- E. Trunk or access ports can be configured as members of any VLANs that are not used as an SVLAN.
Answer: A,D,E
Explanation:
* VLAN translation is not supported on MC-LAG port channel interfaces (A): This is a restriction commonly seen in network configurations involving Multi-Chassis Link Aggregation (MC-LAG) where VLAN translation capabilities are not applied.
* Trunk or access ports can be configured as members of any VLANs that are not used as an SVLAN (B): This ensures that the VLAN configuration on trunk or access ports is flexible and does not overlap with Service VLANs (SVLANs).
* SVLAN configuration for both Q-in-Q VLAN tunneling and VLAN translation is possible on the same interface (E): This allows for complex VLAN tagging and translation configurations to be applied to the same interface, supporting advanced networking scenarios.
References:
* Dell Technologies SONiC documentation
* Dell Networking Configuration Guide
NEW QUESTION # 20
How many ports are in each port-group on the S5200 series switches?
- A. 0
- B. 1
- C. 2
Answer: B
Explanation:
Each port-group on the S5200 series switches consists of 4 ports. This grouping allows for efficient management and configuration of the switch ports in sets.
References:
* Dell S5200 Series Switches Documentation
* Dell Technologies InfoHub
NEW QUESTION # 21
Which two elements must be included in the show mclag interface x x command?
- A. Peer-link port channel number
- B. MC-LAG port channel number
- C. MC-LAG domain id
- D. MC-LAG VLAN id
Answer: A,B
Explanation:
The show mclag interface command provides information about the multi-chassis link aggregation (MC-LAG) configuration. Essential elements that must be included are the peer-link port channel number and the MC-LAG port channel number. These parameters are critical for identifying the interface and its associated link aggregation settings.
References:
* Dell SONiC Command Reference Guide
* Dell Technologies InfoHub
Topic 1, SIMULATION / Lab based
NEW QUESTION # 22
How many times must BGP be configured when running symmetric IRB with two VFRs?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
Explanation:
When running symmetric Integrated Routing and Bridging (IRB) with two Virtual Forwarding Routers (VFRs), BGP must be configured twice. Each VFR will have its own BGP instance to handle the routing information.
References:
* Dell Technologies SONiC Routing Guide
* Dell Networking Configuration Guide
NEW QUESTION # 23
An administrator obtains the following CLI output:
How much time does the local system take to detect remote failures without receiving packets?
- A. 1200 milliseconds
- B. 800 milliseconds
- C. 600 milliseconds
- D. 900milliseconds
Answer: D
Explanation:
The local timers in the BFD (Bidirectional Forwarding Detection) configuration show a detect multiplier of 4 and a receive interval of 300ms. The time taken to detect remote failures is calculated as detect multiplier × receive interval = 4 × 300ms = 1200ms.
References:
* Dell Technologies SONiC documentation
* BFD Configuration Guide
NEW QUESTION # 24
An administrator issues The ztp enable and show ztp status commands. What two objectives are they trying to accomplish?
- A. Disable the ZTP process.
- B. Administratively enable the ZTP process.
- C. Check on the progress of the ZTP process.
- D. Remove the ZTP function from the switch.
Answer: B,C
Explanation:
The ztp enable command is used to administratively enable the Zero Touch Provisioning (ZTP) process on the switch. This process allows the switch to automatically download and apply configuration files upon boot-up without manual intervention. The show ztp status command is used to check on the progress and status of the ZTP process, providing information about whether the process is active, completed, or encountered any issues.
References:
* Dell Technologies SONiC documentation
* Dell Networking Configuration Guide
NEW QUESTION # 25
Which two things does the no vrrp 100 address-family ipv6 command delete?
- A. Authentication
- B. Identifier
- C. Address-family
- D. Version
- E. Interface
Answer: B,C
Explanation:
The no vrrp 100 address-family ipv6 command deletes the VRRP (Virtual Router Redundancy Protocol) identifier (A) and the address-family configuration (D) for VRRP group 100. This effectively removes the VRRP configuration for the specified address family.
References:
* Dell Technologies SONiC documentation
* VRRP Configuration Guide
NEW QUESTION # 26
What is the impact of entering the qos-mode uniform command on a VTEP interface?
- A. A uniform VNI value is configured on local and remote VTEP interfaces.
- B. The DCSP values for the local and remote VTEPs are synchronized.
- C. The local VNI value is aligned to the VNI of the remote VTEP interface.
- D. The payload DSCP value is copied to the outer header DSCP value.
Answer: D
Explanation:
Entering the qos-mode uniform command on a VTEP interface ensures that the DSCP (Differentiated Services Code Point) value of the payload is copied to the outer header DSCP value. This maintains the Quality of Service (QoS) markings across the VXLAN tunnel, allowing consistent traffic prioritization.
References:
* Dell Technologies SONiC documentation
* VXLAN and QoS Configuration Guide
NEW QUESTION # 27
Refer to the exhibit.
The route distinguisher was autogenerated. Which VLAN is mapped to VNI410?
- A. VLAN 26
- B. VLAN 410
- C. VLAN 10
- D. VLAN41
Answer: C
Explanation:
The route distinguisher (RD) in the exhibit is 10.0.2.26:41. The RD typically reflects the VNI and VLAN mapping configuration. Given that the VNI is 410 and the RD ends with :41, it implies that VLAN 10 is mapped to VNI 410.
References:
* Dell Technologies SONiC documentation
* VXLAN Configuration Guide
NEW QUESTION # 28
Refer to the exhibit.
What is the purpose of the static route?
- A. Provide a route to the 12.0.0.0 network.
- B. Verify that the 12.0.0.0 network is active and reachable.
- C. Verify that devices in VLAN 45 are reachable.
- D. Provide a route to the 192.168.45.0 network.
Answer: A
Explanation:
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.
References:
* Dell Technologies SONiC Routing Guide
* Dell Networking Configuration Guide
NEW QUESTION # 29
How many port channels can be assigned to a single port?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
Explanation:
According to the Dell SONiC documentation, a single physical port can be a member of only one port channel at a time. This restriction ensures the consistency and integrity of link aggregation configurations.
References:
* Dell Networking SONiC: How to Configure Port Channels
* Dell Technologies InfoHub
NEW QUESTION # 30
What is the purpose of the write erase boot command option?
- A. Remove user-installed packages and tile changes.
- B. Delete the running configuration and all user accounts.
- C. Delete the startup configuration and the management interface configuration.
- D. Delete the startup and enable zero touch provisioning.
Answer: D
Explanation:
The write erase boot command option deletes the startup configuration and enables zero touch provisioning (ZTP). This is used to reset the switch to its default state and prepare it for automated configuration through ZTP.
References:
* Dell Technologies SONiC Command Reference Guide
* Switch Configuration Guide
NEW QUESTION # 31
Refer to the exhibits.
PC1 has a valid address on the 192.168.10.0 network, and PC2 has a valid address on the 192.168.20.0 network.
What happens when a ping command is issued between PC1 and PC2?
- A. The ping is unsuccessful because there is no route to the VLAN 10 gateway address of 192.168.10.254.
- B. The ping is successful because there are two routes from switch1 to switch2 which are connected to PC2.
- C. The ping is unsuccessful because there is no route from switch 1 to the 192.168.20.0 network.
- D. The ping is successful because there is a route to 10.0.1.1, which is connected to 1(10.2.2, which is connected to PC2.
Answer: C
Explanation:
* Network Topology Analysis:
* PC1 is on VLAN 10 with an IP address in the 192.168.10.0/24 subnet.
* PC2 is on VLAN 20 with an IP address in the 192.168.20.0/24 subnet.
* The network uses OSPF for routing between the switches.
* The OSPF area is 0, and all switches have loopback interfaces for OSPF.
* Routing Table Examination (from switch1):
* The show ip route command output from switch1 provides a detailed look at the routing table.
* Routes to the 192.168.10.0/24 network (directly connected via Vlan10) are present.
* No routes to the 192.168.20.0/24 network are listed in switch1's routing table.
* Explanation:
* For PC1 to communicate with PC2, switch1 must have a route to the 192.168.20.0/24 network.
* The absence of a route to the 192.168.20.0/24 network in switch1's routing table means that switch1 cannot forward packets destined for 192.168.20.0/24.
* Therefore, any ping from PC1 to PC2 will be unsuccessful as switch1 does not know how to route packets to PC2's network.
* Verification with Dell SONiC:
* In Dell SONiC environments, OSPF is configured to ensure dynamic routing.
* The configuration must include all necessary networks for inter-switch routing.
* If a network (like 192.168.20.0/24) is not included in OSPF configurations on switch1, routes to that network will not be advertised or learned, leading to failed connectivity tests like the ping from PC1 to PC2.
References:
* Dell Enterprise SONiC Deployment Guide
* Dell Technologies Networking - SONiC
NEW QUESTION # 32
Which three actions are required to route traffic sourced from voice servers to a dedicated Internet link''
- A. Create a class-map and attach an ACL with the IP of the next-hop to it.
- B. Create a class-map and attach that ACL.
- C. Create a policy-map and attach the configured class-map and set the next-hop IP
- D. Attach a policy to the egress interface
- E. Create an ACL that selects IPs of voice servers
Answer: C,D,E
Explanation:
To route traffic from voice servers to a dedicated Internet link, the following steps are necessary:
* Create an ACL that selects IPs of voice servers (B): This ACL will match the traffic coming from the specified IP addresses of the voice servers.
* Create a policy-map and attach the configured class-map and set the next-hop IP (D): The policy-map will use the class-map to identify the voice server traffic and then set the next-hop IP for routing.
* Attach a policy to the egress interface (C): The policy-map must be applied to the egress interface to ensure that the traffic is routed correctly.
References:
* Dell SONiC QoS Configuration Guide
* Dell Technologies InfoHub
Feel free to refer to the Dell SONiC documentation and Dell Technologies InfoHub for more detailed explanations and additional context.
NEW QUESTION # 33
Which network devices route unencapsulated user traffic in a symmetric IRB overlay network?
- A. Leaf router and spine router
- B. Source VTEP and destination VTEP
- C. Capability extended next hop router and leaf router
- D. Autonomous system boundary router and source VTEP
Answer: B
Explanation:
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.
References:
* Dell Technologies SONiC documentation
* VXLAN Configuration Guide
NEW QUESTION # 34
Create port channel 10 on interfaces Eth 1/11 and 1/12, so that it connects to an already configured switch. A server will be connected on Eth 1/1. Both the server and port channel need VLAN 1 untagged and only VLAN
10 tagged.
Complete the configuration on Switch A.
Answer:
Explanation:
see the explanation for all step by step solution with all explanation.
Explanation:
Here are the steps to configure the required port channel and VLAN settings on Switch A:
* Enter Configuration Mode:
SwitchA# configure terminal
* Create Port Channel 10:
SwitchA(config)# interface port-channel 10
SwitchA(config-if-po10)# switchport mode trunk
SwitchA(config-if-po10)# switchport trunk native vlan 1
SwitchA(config-if-po10)# switchport trunk allowed vlan 1,10
* Assign Interfaces Eth 1/11 and Eth 1/12 to Port Channel 10:
SwitchA(config)# interface ethernet 1/11
SwitchA(config-if-eth1/11)# channel-group 10 mode active
SwitchA(config-if-eth1/11)# exit
SwitchA(config)# interface ethernet 1/12
SwitchA(config-if-eth1/12)# channel-group 10 mode active
SwitchA(config-if-eth1/12)# exit
* Configure Interface Eth 1/1 for Server Connection:
SwitchA(config)# interface ethernet 1/1
SwitchA(config-if-eth1/1)# switchport mode trunk
SwitchA(config-if-eth1/1)# switchport trunk native vlan 1
SwitchA(config-if-eth1/1)# switchport trunk allowed vlan 1,10
SwitchA(config-if-eth1/1)# end
* Save Configuration:
SwitchA# write memory
Comprehensive Detailed Step by Step Explanation with References:
* Enter Configuration Mode:
* Start by entering the global configuration mode to make changes to the switch configuration.
* Create Port Channel 10:
* Enter the port channel interface configuration mode using interface port-channel 10.
* Set the port channel to trunk mode with switchport mode trunk.
* Specify VLAN 1 as the native VLAN (untagged) using switchport trunk native vlan 1.
* Allow VLANs 1 and 10 on the trunk with switchport trunk allowed vlan 1,10.
* Assign Interfaces Eth 1/11 and Eth 1/12 to Port Channel 10:
* Enter interface configuration mode for ethernet 1/11 and ethernet 1/12.
* Assign each interface to port channel 10 using the channel-group 10 mode active command.
* Exit the interface configuration mode.
* Configure Interface Eth 1/1 for Server Connection:
* Enter interface configuration mode for ethernet 1/1.
* Set the interface to trunk mode with switchport mode trunk.
* Specify VLAN 1 as the native VLAN using switchport trunk native vlan 1.
* Allow VLANs 1 and 10 on the trunk with switchport trunk allowed vlan 1,10.
* Exit the configuration mode.
* Save Configuration:
* Ensure the configuration is saved so it persists after a reboot using the write memory command.
References:
* Dell Technologies Networking - SONiC
* Dell Enterprise SONiC Deployment Guide
These steps provide a comprehensive guide to configure a port channel and VLAN settings on Switch A to meet the specified requirements for server and trunk connections.
NEW QUESTION # 35
An administrator for a service provider uses this command on a switch:
What is the result of running the command?
- A. Maps the VLAN traffic that a TPID identifies to a VNI on a VTEP
- B. Maps the VLAN traffic that a CVLAN identifies to a VNI on a VTEP
- C. Maps the VLAN traffic that an SVLAN identifies to a VNI on a VTEP
Answer: C
Explanation:
The command interface vxlan vtep-stacking followed by map vni 10010 vlan 100 maps the VLAN traffic that an SVLAN identifies to a VNI on a VTEP. In this context, SVLAN (Service VLAN) is being mapped to a VXLAN Network Identifier (VNI) for encapsulation and transport across the VXLAN tunnel.
References:
* Dell Technologies SONiC documentation
* VXLAN Configuration Guide
NEW QUESTION # 36
What is ECMP?
- A. A Layer 3 routing feature to forward traffic using multiple available paths
- B. A routing protocol with multipath support
- C. A routing protocol database filter supporting a maximum of four paths
- D. A round-robin path distribution mechanism
Answer: A
Explanation:
ECMP (Equal-Cost Multi-Path) is a Layer 3 routing feature that allows traffic to be forwarded using multiple available paths of equal cost. This improves bandwidth utilization and provides redundancy. ECMP is commonly used in modern networks to optimize the flow of traffic and increase the resiliency of network connections.
References:
* Dell Technologies SONiC documentation
* ECMP Configuration Guide
NEW QUESTION # 37
Which protocol is used to perform an automated installation of Enterprise SONiC?
- A. SFTP
- B. HTTP
- C. SCP
Answer: B
Explanation:
The automated installation of Enterprise SONiC is typically performed using the HTTP protocol. During the Zero Touch Provisioning (ZTP) process, the switch retrieves configuration files and software images from an HTTP server, allowing for automated and streamlined deployments.
References:
* Dell Technologies SONiC documentation
* ONIE User Guide
NEW QUESTION # 38
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