VMware 3V0-41.19 Online Practice Questions and Exam Preparation

VMware 3V0-41.19 Online Questions & Answers

• Question 1:

  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.

  There Isn't much budget available for a new off-shore site.

  2.

  The new site is decentralized and no communication with the main data center is required.

  3.

  The design will need to cater for availability, upgrades, and failure scenarios.

  Which three should the architect recommend In their design? (Choose three.)

  A. Collapse the Management/Edge/Compute cluster.
  B. A Shared Edge/Management cluster and one for Compute.
  C. Separate the hosts physical NICs for VSS and N-VDS.
  D. Install a minimum 4 ESXi hosts In the site.
  E. Make all pNICs part of N-VDS and VMKs will be migrated.
  F. Install a minimum of 6 ESXi hosts in the site.
  A. Collapse the Management/Edge/Compute cluster.
  C. Separate the hosts physical NICs for VSS and N-VDS.
  D. Install a minimum 4 ESXi hosts In the site.

  ---

  Limited budget for new site means collapsing of mgmt., edge, and compute provides the best value at lowest cost. NSX-T can fully operate with 4 esxi hosts (no need for 6) as that is more a requirement of VCF/vSAN. Because you are running NSX Edges you should run a vSS or vDS for vmkerneland edge traffic and a N-vDS for NSX-T overlays traffic. Each vSwitch requiring its own set of pNics https://blogs.vmware.com/networkvirtualization/2018/10/flexible-deploymentoptions-for-nsx-t- edge-vm.html/

• Question 2:

  Refer to Exhibit.

  

  To meet the technical requirements for NSX Edge VM, which two design choices are required to satisfy this architectural design. (Choose two.)

  A. NSX Edge TEP and ESXi TEP need to be in different VLANs.
  B. ESXi host should be prepared as a Transport Node and use VLAN backend segments to connect Edge Node Interfaces.
  C. ESXi host must have more than 2 pNICs available to create another N-VDS. D NSX Edge should run as a physical device.
  D. vmk ports need to be on VDS instead of N-VDS, with onepNIC for each virtual switch providing greater functionality.
  A. NSX Edge TEP and ESXi TEP need to be in different VLANs.
  B. ESXi host should be prepared as a Transport Node and use VLAN backend segments to connect Edge Node Interfaces.

  ---

  I believe this was supposed to have 5 answers as (C) looks like it has two answers on the same line unless it is saying "ESXi host must have more than 2pNICs available to create another N-VDS or NSX Edge should run as a physical device". Either one of those statements is still incorrect based on that diagram though.

  (D)

  is wrong as 1 pNIC per vSwitch is a bad design.

  (C)

  is wrong because you can do a 2 pNIC design with NSX-T and an Edge VM running on a N-VDS

  https://vxplanet.com/2019/07/08/deploying-and-configuring-nsx-t-edges-on-n-vds-networking/

• Question 3:

  An architect is helping an organization with the Physical Design of an NSX-T Data Center solution.

  1.

  This information was gathered during a workshop:

  2.

  Some workloads should be moved to a Cloud Provider.

  3.

  Extend network's VLAN or VNI across sites on the same broadcast domain.

  4.

  Enable VM mobility use cases such as migration and disaster recovery without IP address changes.

  5.

  Support 1500 byte MTU between sites.

  Which should the architect include in their design?

  A. SSL VPN
  B. Reflexive NAT
  C. L2 VPN
  D. Load Balancer
  C. L2 VPN

  ---

  NSX-T doesn't support sslvpn, reflexive NATand LB don't solve the ask. L2VPN will stretch across sites and to Cloud Providers.

• Question 4:

  Refer to exhibit:

  

  An NSX architect is creating a Greenfield NSX-T Data Center solution using IPv6 addressing. This solution will form the starting point for a migration away from IPv4 addressing in the data center.

  What are three correct labels for locations A, B, and C in the exhibit? (Choose three.)

  A. Static IPv4 Addresses
  B. Auto assigned from fc5f:b8e2:ac6a::/48 Unique Local
  C. Static IPv6 addresses
  D. Auto Assigned from fe:::::/48 Unique Local
  E. DHCP relay for IPv4
  F. Static IPv6 addresses and DHCP Relay
  B. Auto assigned from fc5f:b8e2:ac6a::/48 Unique Local
  C. Static IPv6 addresses
  F. Static IPv6 addresses and DHCP Relay

  ---

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

• Question 5:

  An architect is designing a solution for containerization. The solution will include high availability and security using NSX-T Data Center. The architect plans to provide a basic required components list In the Logical Design. Which solution should the architect recommend?

  A. 2 NSX Managers, 2 virtual NSX Edges, one Tier-0 gateway, BGP configuration and a static route
  B. 3 NSX Managers, 1 virtual NSX Edge, one Tier-0 gateway and a static route and OSPF
  C. 1 NSX Manager, 2 virtual NSX Edges, two Tier-0 gateways In Active/Active, BGP configuration
  D. 3 NSX Managers, 2 virtual NSX Edges, two Tier-0 gateways in Active/Passive, BGP configuration
  D. 3 NSX Managers, 2 virtual NSX Edges, two Tier-0 gateways in Active/Passive, BGP configuration

  ---

  HA should include 3 NSX Managers and redundant Tier-0 Gateways. OSPF isn't supported https://docs.vmware.com/en/VMware-Enterprise-PKS/1.5/vmware-enterprise-pks-15/GUID-nsxt- install-nsx-mgmt-cluster.html

• Question 6:

  An architect is helping an organization design an NSX-T Data Center solution. This information was gathered during a workshop:

  1.

  There are three LUNs In the storage array.

  2.

  There is no additional budget to purchase any more hardware.

  3.

  LUN 1 usage is 90% and is configured with a high-performance profile.

  4.

  LUN 2 usage is 75% and is configured with a high availability profile.

  5.

  LUN 3 usage is 60% and is configured with a balanced performance/availability profile.

  6.

  A highly available NSX Management cluster is required.

  7.

  ECMP routing is required.

  Which should the architect recommend for the organization's NSX-T Datacenter environment?

  A. Place all three NSX Managers on LUN 2 for high availability.
  B. Place all three NSX Managers on LUN 1 to avoid latency.
  C. Spread the NSX Managers across LUN 2 and LUN 3.
  D. Spread the NSX Managers across the three LUNs.
  D. Spread the NSX Managers across the three LUNs.

  ---

  Even though the LUN itself is "HA", the fact remains it is a S.P.o.F. and must not have all the managers running on it. While (C) seems fine, because LUN2 is "HA", if either LUN goes offline that holds 2 managers then you have lost quorum and will effectively be down w/o a mgmt. cluster.

• Question 7:

  An architect is helping an organization with the Logical Design of an NSX-T Data Center solution. This information was gathered during the assessment: There must be a performance based SLA for East - West traffic.

  Which two key performance features should the architect recommend? (Choose two.)

  A. Setup RSS to leverage multiple cores.
  B. Enable GENEVE-Offload.
  C. Configure N-VDS Enhanced Data Path.
  D. Install advanced Edge pNIC Features.
  E. Leverage DPDK drivers.
  A. Setup RSS to leverage multiple cores.
  B. Enable GENEVE-Offload.

  ---

  *

  (D) iswrong because its talking about edge pNIC and the only requirement we have shows performance based SLA for East/West traffic.

  *

  (E) is wrong because DPDK is about edge fast-path for bare-metal NSX-T Edges

  *

  (A, B, and C) are all perf enhancers

  *

  (C) is focused on super low latency for NFV type workloads; if its not needed then don't deploy it.

  *

  (B) GENEVE-Offload (TSO for Geneve offload send and LRO for Geneve offload receive)uses Rx/Tx filters for queuing traffic.

  *

  (A) seems like the next best option over (C) as it corresponds to offloading principles of RSS,TSO, and LRO https://www.virtualizationhowto.com/2019/10/vmware-nsx-t-performance-tips-and-tuning/

• Question 8:

  Which three must be taken into consideration when creating a Logical Design for a planned migration? (Choose three.)

  A. A transport node can attach single VLAN transport zones with single N-VDS.
  B. An N-VDS with the same name can be attached to both Overlay and VLAN transport zones.
  C. An N-VDS can attach to both an Overlay and a VLAN transport zone to a N-VDS having different name/s.
  D. An N-VDS can only attach to a single Overlay transport zone.
  E. An N-VDS can only attach to a single VLAN transport zone.
  F. An N-VDS can only attach to a multiple VLAN transport nodes.
  B. An N-VDS with the same name can be attached to both Overlay and VLAN transport zones.
  D. An N-VDS can only attach to a single Overlay transport zone.
  F. An N-VDS can only attach to a multiple VLAN transport nodes.

  ---

  Transport Zone 101 w/ NSX-T

• Question 9:

  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
  A. vRealize Network Insight
  E. key stakeholder interviews

  ---

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

• Question 10:

  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.

  On premises deployment required.

  2.

  Use the existing network infrastructure.

  3.

  ESXi hosts have 2 pNICs with only 1 available for use.

  4.

  High availability will be required across all ports in any proposed solution.

  5.

  N-VDS will be required across the infrastructure in the future.

  Which should the architect include in their design?

  A. Use N-VDS for management and workload traffic.
  B. Use a VDS for management traffic and N-VDS- for workload traffic.
  C. Use VDS for management and workload traffic.
  D. Use a N-VDS for management traffic and VDS- for workload traffic.
  A. Use N-VDS for management and workload traffic.

  ---

  Only way to keep high availability and use NSX-T 2.4 N-VDS will be to migrate to N-VDS with collapsed management and workload on the same vSwitch with both pNICs.