EMC D-SNC-DY-00 Real Exam Questions Test Engine Dumps Training With 47 Questions
D-SNC-DY-00 Actual Questions Answers PDF 100% Cover Real Exam Questions
EMC D-SNC-DY-00 Exam Syllabus Topics:
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NEW QUESTION # 20
Refer to the exhibit.
What is the primary VRRP router for VRRP group 10?
- A. Router-3
- B. Router-1
- C. Router-2
Answer: C
Explanation:
Based on the exhibit, Router-2 has the highest priority (90) in VRRP group 10. In VRRP, the router with the highest priority becomes the primary (master) router. Therefore, Router-2 is the primary VRRP router for VRRP group 10.
References:
* Dell Technologies SONiC VRRP Configuration Guide
* VRRP Protocol Overview
NEW QUESTION # 21
An administrator issues The ztp enable and show ztp status commands. What two objectives are they trying to accomplish?
- A. Check on the progress of the ZTP process.
- B. Remove the ZTP function from the switch.
- C. Administratively enable the ZTP process.
- D. Disable the ZTP process.
Answer: A,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 # 22
Which protocol is used to perform an automated installation of Enterprise SONiC?
- A. HTTP
- B. SCP
- C. SFTP
Answer: A
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 # 23
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 VLAN id
- D. MC-LAG domain 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 # 24
What does the show vian command display?
- A. Only VLANs in an active state
- B. All 4094 VLANs
- C. All configured VLANs
Answer: C
Explanation:
The show vlan command displays all configured VLANs on the device, including their status, ports, and other relevant details. It does not limit the display to only active VLANs or all possible VLANs but shows those that are currently configured.
References:
* Dell Technologies SONiC Command Reference Guide
* Dell Networking Configuration Guide
NEW QUESTION # 25
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 successful because there is a route to 10.0.1.1, which is connected to 1(10.2.2, which is connected to PC2.
- B. The ping is unsuccessful because there is no route from switch 1 to the 192.168.20.0 network.
- C. The ping is unsuccessful because there is no route to the VLAN 10 gateway address of 192.168.10.254.
- D. The ping is successful because there are two routes from switch1 to switch2 which are connected to PC2.
Answer: B
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 # 26
Which two additional Q-in-Q VLAN tunnel configuration steps must be followed if the provider network uses a VXLAN overlay?
- A. Configure VLAN Translation.
- B. Map the SVLAN traffic to a VNI.
- C. Remove the CVLAN-to-SVLAN mapping.
- D. Configure the BGP route-target and route-distinguisher.
Answer: A,B
Explanation:
* Configure VLAN Translation (A): VLAN translation is necessary to translate customer VLANs (CVLANs) to service VLANs (SVLANs) for Q-in-Q tunneling in a VXLAN environment.
* Map the SVLAN traffic to a VNI (B): SVLAN traffic must be mapped to a VXLAN Network Identifier (VNI) for encapsulation and transport across the VXLAN overlay network.
References:
* Dell Technologies SONiC documentation
* VXLAN Configuration Guide
NEW QUESTION # 27
What is an iBGP neighbor relationship?
- A. Two BGP neighbors share L2VPN EVPN advertisements.
- B. Two BGP neighbors share only private networks.
- C. Two BGP neighbors share only native BGP networks.
- D. Two BGP neighbors have the same autonomous system numbers
Answer: D
Explanation:
An iBGP (Internal Border Gateway Protocol) neighbor relationship is established between two BGP routers within the same autonomous system (AS). This relationship allows for the exchange of routing information within the AS, ensuring that internal routes are propagated correctly.
References:
* Dell Technologies SONiC Routing Guide
* BGP Configuration Guide
NEW QUESTION # 28
Refer to the exhibit.
The router ID has not been manually configured. What router ID is used for Switch 3?
- A. 192.168.100.0
- B. 10.0.2.1
- C. 10.0.1.1
- D. 192.168.100.2
Answer: C
Explanation:
In the absence of a manually configured router ID, OSPF typically uses the highest IP address on the switch's active interfaces. For Switch 3 in the exhibit, the highest IP address is 10.0.1.1 on Loopback 0. Therefore,
10.0.1.1 is used as the router ID for Switch 3.
References:
* Dell Technologies SONiC documentation
* OSPF Configuration Guide
NEW QUESTION # 29
Refer to the exhibit.
Eth 1/1 of SONiC-1 and Eth1/56 of SONiC-2 should be a routed link connecting the two Enterprise SONiC switches. No traffic is passing between them.
What is the cause of the failure?
- A. IPv6 is not enabled on interface Eth 1/1 of SONiC-1.
- B. A spanning-tree is blocking the routed link.
- C. There is a cable that is unplugged between SONiC-1 and SONiC-2.
- D. An incorrect IPv6 address type was used for interface Eth1/56 of SONiC-2.
Answer: D
Explanation:
From the exhibit, it is evident that Eth1/56 on SONiC-2 is assigned a link-local IPv6 address (fe80::e7d:8aff:fecb
/64). Link-local addresses are not routable beyond the local network segment, which means they cannot be used to route traffic between SONiC-1 and SONiC-2. For routed links, global unicast addresses must be used.
References:
* Dell Technologies SONiC documentation
* IPv6 Addressing Guide
NEW QUESTION # 30
What is the correct order of steps for data flow in asymmetric IRB frame encapsulation?
Answer:
Explanation:
Explanation:
* Ingress VTEP performs a route lookup that is based on the destination IP address.
* Ingress VTEP encapsulates the packet with VXLAN and sends it on the appropriate VNI segment.
* Egress VTEP determines that the host is local to the VNI and switches the packet.
* Egress VTEP bridges the packet after decapsulation.
Steps and Correct Order:
* Ingress VTEP performs a route lookup that is based on the destination IP address.
* The ingress VTEP (Virtual Tunnel Endpoint) first needs to determine the next hop for the packet.
This involves performing a route lookup using the destination IP address.
* Ingress VTEP encapsulates the packet with VXLAN and sends it on the appropriate VNI segment.
* Once the route lookup is complete, the ingress VTEP encapsulates the packet in a VXLAN header, which includes the appropriate VNI (VXLAN Network Identifier) segment, and forwards it.
* Egress VTEP determines that the host is local to the VNI and switches the packet.
* The egress VTEP receives the encapsulated VXLAN packet, decapsulates it, and then checks its local VNI to determine if the destination host is within the same VNI.
* Egress VTEP bridges the packet after decapsulation.
* After determining the destination host's locality, the egress VTEP bridges the packet to the appropriate interface to deliver it to the final destination.
References:
* Dell Technologies Networking - SONiC
* Dell Enterprise SONiC Deployment Guide
These steps provide a comprehensive guide to understand the correct order of operations in asymmetric IRB (Integrated Routing and Bridging) frame encapsulation within a VXLAN environment.
NEW QUESTION # 31
An administrator obtains the following CLI output:
How much time does the local system take to detect remote failures without receiving packets?
- A. 900milliseconds
- B. 600 milliseconds
- C. 800 milliseconds
- D. 1200 milliseconds
Answer: A
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 # 32
Which two elements are configured when RoCE is enabled?
- A. ETS
- B. TCP
- C. IB
- D. PFC
Answer: A,D
Explanation:
When RDMA over Converged Ethernet (RoCE) is enabled, Enhanced Transmission Selection (ETS) and Priority Flow Control (PFC) are two key elements that need to be configured. ETS allows for bandwidth allocation among different traffic classes, and PFC provides lossless Ethernet operation for specific traffic classes to support low-latency, high-performance network communication.
References:
* Dell Technologies SONiC documentation
* RDMA over Converged Ethernet Configuration Guide
NEW QUESTION # 33
What interface must be selected when configuring the management port from within the MF-CLI environment?
- A. ma 0/1
- B. mgmt 1/1/1
- C. eth0
- D. Management 0
Answer: C
Explanation:
* Dell SONiC Management Interface Configuration:
* In Dell SONiC, the management port configuration is a crucial aspect that allows administrators to access and manage the network device.
* The management interface typically provides out-of-band management access to the device, ensuring that even if the data network is down, the management network can still be accessed.
* Common Interface Naming Conventions:
* mgmt 1/1/1: This naming convention is not typically used in Dell SONiC environments for management interfaces.
* ma 0/1: This could be a potential naming convention but is not standard for Dell SONiC.
* Management 0: This is a logical name but does not align with the standard interface naming conventions used in Dell SONiC.
* eth0: This is the standard naming convention used for the primary management interface in most Linux-based systems, including Dell SONiC.
* Verification with Dell SONiC Documentation:
* Dell SONiC documentation specifies that the management interface is usually named eth0.
* When accessing the management interface within the MF-CLI (Management Framework Command Line Interface) environment, eth0 is the correct interface to configure.
* Practical Configuration Example:
* When configuring the management port, the command might look something like:
config interface ip add eth0 <management_ip_address>/<subnet_mask>
* This command specifies the management interface eth0 and assigns it an IP address for network management purposes.
References:
* Dell Enterprise SONiC Deployment Guide
* Dell Technologies Networking - SONiC
This detailed step-by-step explanation confirms that the correct answer is D, providing insights into the typical interface naming conventions and configuration practices within the Dell SONiC environment.
NEW QUESTION # 34
Configure the system to meet these requirements.
. Configure R1 with AS 1.
. R1 must use a static neighbor assignment for BGP peering.
. R1 needs to redistribute all current and future connected IPv4 routes.
All the required BGP configurations have already been completed on R2.
R2 resides in BGP AS 2.
Answer:
Explanation:
see the explanation for all step by step solution with all explanation.
Explanation:
Here is the step-by-step configuration for R1:
* Enter BGP Configuration Mode:
R1# configure terminal
R1(config)# router bgp 1
* Configure the BGP Neighbor:
R1(config-router)# neighbor 10.10.12.2 remote-as 2
* Redistribute Connected Routes into BGP:
R1(config-router)# redistribute connected
* Exit BGP Configuration Mode and Save the Configuration:
R1(config-router)# end
R1# write memory
Comprehensive Detailed Step by Step Explanation with References:
* Enter BGP Configuration Mode:
* To configure BGP on R1, you need to enter global configuration mode and then enter BGP
* configuration mode with the AS number. Since R1 is in AS 1, you use the command router bgp 1.
* Configure the BGP Neighbor:
* BGP neighbors must be manually specified. In this case, R1's neighbor is R2, which has an IP address of 10.10.12.2 and resides in AS 2. The command neighbor 10.10.12.2 remote-as 2 establishes this relationship.
* Redistribute Connected Routes into BGP:
* To ensure that all connected routes on R1 are advertised via BGP, you use the redistribute connected command. This ensures that any connected IPv4 routes are redistributed into BGP, meeting the requirement to advertise current and future connected routes.
* Exit BGP Configuration Mode and Save the Configuration:
* Once the configuration is complete, you exit BGP configuration mode by typing end and then save the configuration with the write memory command. This ensures that the changes persist after a reboot.
References:
* Cisco BGP Configuration Guide
* Dell Technologies Networking - SONiC
* Dell Enterprise SONiC Deployment Guide
These steps provide a comprehensive guide to configure R1 to meet the specified requirements for BGP peering and route redistribution.
NEW QUESTION # 35
How many times must BGP be configured when running symmetric IRB with two VFRs?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
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 # 36
Enterprise SONiC Switch 1 and Switch 2 are part of a symmetric VXLAN fabric in a data center environment.
Switch 1 has learned MAC addresses from its local VLANs.
What role does BGP EVPN play in this scenario?
- A. Enables efficient communication across the VXLAN fabric
- B. Distributes locally learned MAC addresses to Switch 2
- C. Establishes Layer 2 connectivity between Switch 1 and Switch 2
Answer: B
Explanation:
BGP EVPN (Border Gateway Protocol Ethernet VPN) is used in a VXLAN fabric to distribute MAC address reachability information between switches. In this scenario, Switch 1 uses BGP EVPN to advertise the locally learned MAC addresses to Switch 2. This distribution of MAC addresses enables the switches to build and maintain an efficient forwarding table, facilitating communication across the VXLAN fabric.
References:
* Dell Technologies SONiC documentation
* BGP EVPN Configuration Guide
NEW QUESTION # 37
What are the supported modes for the QSFP28 ports on an S5248F?
- A. 1x200G, 1x100 G, 1x40 G, and 4x25 G
- B. 1x100G, 1x40 G, 4x25 G, and 4x10 G
- C. 1x400G, 2x200 G, 4x25 G. and 4x10 G
- D. 1x100G, 1x40 G, 2x50 G, and 4x25 G
Answer: D
Explanation:
The QSFP28 ports on an S5248F switch support multiple modes, including 1x100G, 1x40G, 2x50G, and
4x25G. These modes provide flexibility in network design and enable the switch to support different types of network connections and bandwidth requirements.
References:
* Dell S5248F Switch Data Sheet
* Dell Technologies InfoHub
NEW QUESTION # 38
In what order should these commands be entered to configure an access port in SONiC CLI if the required VLAN is already configured?
Answer:
Explanation:
Explanation:
To configure an access port on the SONiC CLI, the commands should be entered in the following order:
* Enter global configuration mode with configure terminal.
* Specify the interface to configure using interface ethernet 1/1.
* Set the interface to access mode and assign it to VLAN 20 with switchport access vlan 20.
* Exit the interface configuration mode with exit.
References:
* Dell Technologies SONiC Command Reference Guide
* Dell Networking Configuration Guide
NEW QUESTION # 39
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