VMware VMware Certifications 3V0-41.19 Questions & Answers

• Question 31:

  Which two resources can be used by an NSX architect during the Assessment Phase? (Choose two.)

  A. vRealize Network Insight

  B. VMware customer references

  C. application licensing

  D. VMware Validated Design

  E. key stakeholder interviews

  Correct Answer: AE

  https://blogs.vmware.com/management/2016/11/david-davis-vrealize-operations-post-33-vrealizenetwork-insight-vrni.html--vetted

• Question 32:

  An architect is helping an organization with the Logical Design of an NSX-T Data Center solution. This information was gathered during the Assessment Phase:

  1.

  Customer currently has a single 10 host vSphere cluster.

  2.

  Customer wants to improve network security and automation.

  3.

  Current cluster utilization and business policies prevent changing the existing vSphere deployment.

  4.

  High-availability is important to the customer.

  Which three should the architect include in their design? (Choose three.)

  A. Apply vSphere Distributed Resource Scheduler (vSphere DRS) VM-Host anti-affinity rules to NSX Managers.

  B. Deploy at least two large-size NSX-T Edge virtual machines in the vSphere cluster.

  C. Apply vSphere DRS VM-Host anti-affinity rules to the virtual machines of the NSX-T Edge cluster.

  D. Remove 2 hosts from the cluster and create a new edge cluster.

  E. Apply vSphere DRS VM-Host affinity rules to the NSX-T Controller VMs.

  F. Deploy the NSX Controllers in the management cluster.

  Correct Answer: ABC

  VM-Host anti-affinity rules means it separates VMs on different hosts. Affinity rules means run on the same host

• Question 33:

  Which three IPv6 features are supported in an NSX-T Data Center design? (Choose three.)

  A. IPv6 Distributed Firewall

  B. IPv6 OSPF

  C. IPv6 switch security

  D. IPv6 static routing

  E. IPv6 DNS

  F. IPv6 VXLAN

  Correct Answer: ACD

  https://blogs.vmware.com/networkvirtualization/2019/02/ipv6-support-in-nsx-t-2-4.html/--vetted

• Question 34:

  Refer to Exhibit:

  

  An NSX-T architect has been asked to review and recommend improvements for an NSX-T Data Center Logical Design, as shown in the drawing. The design must allow workload bursts for tenants to and from the public cloud and accommodate 30% yearly growth.

  What two VMware recommended changes will Improve the Logical design? (Choose two.)

  A. A separate POD is required for the NSX Edge nodes since the amount of traffic will be heavy.

  B. An additional POD will be required to pivot workloads to Public Cloud.

  C. Automation tools will be required to reduce time for workloads to be vMotioned.

  D. Load balancers should be added to the design to support bursts from the Public Cloud.

  E. NSX-T Datacenter components needs to be placed on the Public Cloud for cost reduction.

  Correct Answer: CD

  You aren't placing NSX-T components in the cloud so (E) is wrong. It talks about bursting "to and from" the cloud, which lends itself to possibly being a VMware HCX (automation tools) play for (C) (A) With a whole separate "POD" (covering everything in the graphic) based on this logical design would be overkilled for the NSX Edges (B) no additional pods are required for pivoting/moving workloads to the public cloud

• Question 35:

  An architect is helping an organization with the Physical Design of an NSX-T Data Center solution. This information was gathered during the Assessment Phase:

  1.

  There Is a critical application used by the Finance Team.

  2.

  The critical application has an availability and recoverability SLA of 99.99%.

  3.

  The critical application Is sensitive to network changes.

  Which two should an architect include in their design? (Choose two.)

  A. Install and configure hosts with 100Gbps physical NICs.

  B. Configure Tler-0 gateway for eBGP and ECMP.

  C. Configure Tier-1 gateway for eBGP and ECMP.

  D. Enable BFD on Tier-0 gateway.

  E. Configure multiple static routes on Tier-1 gateway.

  Correct Answer: BD

  Answer B is NSX-T Tier-0 Gateway Best Practice. Dump recommended "E", but having `multiple static routes on Tier-1 gateway' in and of itself does not lend to high reliability HA (Four 9's). BFD is used in physical networking to rapidly detectedge node failure and expedite re-convergence --vetted

• Question 36:

  A customer wants to place their NSX Managers in different subnets. Which would an architect recommend to support the request?

  A. Use a cluster Virtual IP.

  B. Use round-robin DNS.

  C. Use a load balancer.

  D. Use NAT.

  Correct Answer: C

  "With NSX-T 2.4 it is also possible to create a High Available NSX-T Cluster using an external Load Balancer which can load balance traffic from GUI, API clients and CMP Platforms to each NSX-T Manager. In this configuration NSX-T Managers can be in different subnets." http://www.cloudxtreme.info/nsx-tmanager-clustering/--vetted

• Question 37:

  An architect is helping an organization with the Physical Design of an NSX-T Data Center solution. This information was gathered during a workshop about ESXi Host networking:

  1.

  A total of 50 ESXI hosts to be configured as Transport Nodes.

  2.

  All ESXi hosts have a dedicated 2 x Intel 10Gbps Physical Network adapter for the Overlay Traffic.

  To achieve low latency, high throughput, redundancy, and performance, which two NIC teaming policies should the architect recommend? (Choose two.)

  A. Load Balance Port ID

  B. Load Balance Source

  C. Load Balance Source Port ID

  D. Failover Order

  E. Load Balance Source MAC

  Correct Answer: BE

  (A and C) aren't supported for N-VDS. Failover order is Active/Standby. Leaving (BandE) as the only supported teaming policies (only supported on ESXi though) http://www.cloudxtreme.info/nsx-t-uplink-profile/

• Question 38:

  An architect is helping an organization with the Physical Design of an NSX-T Data Center solution. This information was gathered during a workshop:

  1.

  There are six hosts and hardware has already been purchased.

  2.

  Customer is planning a collapsed Management/Edge/Compute cluster.

  3.

  Each host has two 10Gb NICs connected to a pair of ToR switches.

  4.

  There should be no single point of failure in any proposed design.

  Which virtual switch design should the architect recommend to the organization?

  A. Create an NSX-T Virtual Distributed Switch (N-VDS) for Management VMkernal and overlay traffic and assign a new virtual NIC.

  B. Create an NSX-T Virtual Distributed Switch (N-VDS) for Management VMkernel and overlay traffic and assign both NICs.

  C. Create an NSX-T Virtual Distributed Switch (N-VDS) for Management VMkernel traffic and assign one NIC. Also, create an NSX-T Virtual Distributed Switch (N-VDS) for overlay traffic and assign one NIC.

  D. Create a vSphere Distributed Switch (vDS) for Management VMkernel traffic and assign one NIC. Also, create an NSX-T Virtual Distributed Switch (N-VDS) for overlay traffic and assign one NIC.

  Correct Answer: B

  The only way to have N.S.P.o.F is a single N-vDS design. Virtual NICs don't help the pNIC availability issue

• Question 39:

  An architect is helping an organization with the Physical Design of an NSX-T Data Center solution. This information was gathered during the Assessment Phase:

  1.

  Deployment will be a brownfield vSphere environment.

  2.

  A smooth transition for deployment is required.

  Which two should the architect include in their design? (Choose two.)

  A. Separate management and NSX Edge clusters.

  B. Set an end-to-end MTU of 9000.

  C. The physical gateway will be migrated to the Tier-1 gateway.

  D. The ESXi hosts will need at least one free physical NIC.

  E. L2 connectivity will be the core convergent network.

  Correct Answer: BD

  1.

  (D) You need at least 1 free pNIC to begin the migration to a N-VDS.

  2.

  (A) Separating mgmt. and edge doesn't do anything for making a smooth transition from vSphere networking to NSX-T

  3.

  (C) Changing of the default gateway will have to happen for VMs but this doesn't line up with a physical design

  4.

  (B) Jumbo frames will help,and by setting it all to 9000 will aid in the "smooth" transition.

  5.

  (E) doesn't really jive with NSXor physical design

  https://docs.vmware.com/en/VMware-NSX-T-Data-Center/2.4/nsxt_24_migrate.pdf

• Question 40:

  An architect is helping an organization with the Logical Design of an NSX-T Data Center solution. During discussions about Centralized Services NAT running on Tier-1 or Tier-0 LR the customer made these requests:

  1.

  Services contain stateful services.

  2.

  Services should be in high availability mode.

  Which two should the architect include in their design? (Choose two.)

  A. An active/active model should be used.

  B. NAT should be applied on the uplink Interface.

  C. Mix stateful and stateless NAT rules on the same LR.

  D. The high availability mode supported is only Active-Stand by.

  E. Use only DNAT rules in stateful NAT.

  Correct Answer: DE

  1.

  Stateful services cant be in active/active, they need to be in Active/Standby

  2.

  SNAT and DNAT work with stateful services, reflexive NAT works with stateless

  3.

  NAT is applied to a logical switch, not an uplink. http://www.vexpertconsultancy.com/2019/12/nsx-t-configure-network-address-translation-nat/