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VMware Advanced Design NSX-T Data Center 2.4 Exam 試験

最新更新時間: 2024/03/19,合計50問。

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Question No : 1
A customer wants to place their NSX Managers in different subnets.
Which would an architect recommend to support the request?

正解:
Explanation:
“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-t-manager-clustering/--vetted

Question No : 2
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:
- A total of 50 ESXI hosts to be configured as Transport Nodes.
- 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.)

正解:
Explanation:
Z- (A & C) aren’t supported for N-VDS. Failover order is Active/Standby. Leaving (B&E) as the only supported teaming policies (only supported on ESXi though)
http://www.cloudxtreme.info/nsx-t-uplink-profile/

Question No : 3
An architect is helping an organization with the Physical Design of an NSX-T Data Center solution.
This information was gathered during a workshop:
- There are six hosts and hardware has already been purchased.
- Customer is planning a collapsed Management/Edge/Compute cluster.
- Each host has two 10Gb NICs connected to a pair of ToR switches.
- There should be no single point of failure in any proposed design.
Which virtual switch design should the architect recommend to the organization?

正解:
Explanation:
Z C 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 No : 4
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:
- Deployment will be a brownfield vSphere environment.
- A smooth transition for deployment is required.
Which two should the architect include in their design? (Choose two.)

正解:
Explanation:
Z C
* (D) You need at least 1 free pNIC to begin the migration to a N-VDS.
* (A) Separating mgmt. and edge doesn’t do anything for making a smooth transition from vSphere networking to NSX-T
* (C) Changing of the default gateway will have to happen for VMs but this doesn’t line up with a physical design
* (B) Jumbo frames will help,and by setting it all to 9000 will aid in the “smooth” transition.
* (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 No : 5
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:
- Services contain stateful services.
- Services should be in high availability mode.
Which two should the architect include in their design? (Choose two.)

正解:
Explanation:
Z C
* Stateful services cant be in active/active, they need to be in Active/Standby
* SNAT and DNAT work with stateful services, reflexive NAT works with stateless
* NAT is applied to a logical switch, not an uplink.
* http://www.vexpertconsultancy.com/2019/12/nsx-t-configure-network-address-translation-nat/

Question No : 6
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:
- Customer Is concerned with NSX Manager availability.
- 3 cabinets/racks are available in the data center.
- No integration with 3rd party solution is required.
- There is no budget for physical equipment acquisition.
- The 3 cabinets/racks do not share the same L2 domain.
Which three should the architect include in their design to address the customer's concern with NSX Manager availability? (Choose three.)

正解:
Explanation:
Z C Customer is concerned with availability and NSX-T requires (except for labs)a 3x Mgr cluster must be deployed. You can use internal HA/VIP& vSphere HA for Mgmt cluster only when the mgrs. are on the same L2 domain. To do this you need an external load-balancer, the only one that would meet the “no 3rd party” & “no physical equipment acquisition” would be a NSX-T Edge LB though the only answer that lines up with that is (D) and its worded poorly. (F) and (B) are both wrong/worded even more poorly. (A) by itself isn’t right/wrong but when also looking at (E) then you know it doesn’t cut it. (C & E) are correct.
https://docs.vmware.com/en/VMware-NSX-T-Data-Center/2.4/installation/GUID-72A55651-0031-43A4-9F23-5950C1AFF304.html
https://vxplanet.com/2020/03/26/using-nsx-t-loadbalancer-for-the-nsx-t-management-cluster-part-1/&https://vxplanet.com/2020/03/26/using-nsx-t-loadbalancer-for-the-nsx-t-management-clusterpart-2/

Question No : 7
An architect is helping an organization with the Physical Design of an NSX-T Data Center solution.
This information was gathered during a workshop:
- Some workloads should be moved to a Cloud Provider.
- Extend network's VLAN or VNI across sites on the same broadcast domain.
- Enable VM mobility use cases such as migration and disaster recovery without IP address changes.
- Support 1500 byte MTU between sites.
Which should the architect include in their design?

正解:
Explanation:
Z C NSX-T doesn’t support sslvpn, reflexive NAT & LB don’t solve the ask. L2VPN will stretch across sites and to Cloud Providers.

Question No : 8
Which three assessment findings are part of a Conceptual Design? (Choose three.)

正解:
Explanation:
Z C Conceptual Design is RRCA (requirements, risks, constraints, & assumptions)

Question No : 9
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:
- There Isn't much budget available for a new off-shore site.
- The new site is decentralized and no communication with the main data center is required.
- The design will need to cater for availability, upgrades, and failure scenarios.
Which three should the architect recommend In their design? (Choose three.)

正解:
Explanation:
Z CLimited 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 vmkernel& 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-deployment-options-for-nsx-tedge-vm.html/

Question No : 10
An NSX-T architect is working with a customer who wants to improve performance and future-proof
their workloads with a multi-site architecture.
A current-state analysis captured this information:
- Latency between sites Is 160ms.
- Bandwidth is 2Gbps.
- The MTU is 1600.
What two VMware design recommendations should the architect recommend to the organization to achieve future-proofing? (Choose two.)

正解:
Explanation:
https://docs.vmware.com/en/VMware-NSX-T-Data-Center/2.4/administration/GUID-5D7E3D43-6497-4273-99C1-77613C36AD75.html

Question No : 11
Which is associated with the Discover Task of the Engagement Lifecycle?

正解:
Explanation:
Discovery is part of the initial conceptual design (RRCA)

Question No : 12
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:
- Maximum performance and availability is required between the physical and virtual network.
- Load Balancing service is required for back-end web servers.
- NAT is required.
Which should the architect include in their design?

正解:
Explanation:
Option A is required (even though B&C are technically correct for parts of the requirement). Stateful services (LB) can’t be on the same gateway as ECMPgateway.
https://docs.vmware.com/en/VMware-NSX-T-Data-Center/2.4/administration/GUID-DAEF8457-8363-4F33-84DA-68AA36A2DE3C.html
https://vnuggets.com/2019/09/13/nsx-t-inline-and-onearm-load-balancing-part1/
https://nsx.techzone.vmware.com/resource/vmware-nsx-t-design-guide-designing-environmentsnsx-t

Question No : 13
Which three must be taken into consideration when creating a Logical Design for a planned migration? (Choose three.)

正解:
Explanation:
Z C Transport Zone 101 w/ NSX-T

Question No : 14
An architect is helping an organization with the Physical Design of an NSX-T Data Center solution and resolving a network throughput bottleneck.
This information was gathered during a workshop:
- A VM running a business critical application Is peaking at ~5Gbps
- Current host uplink is configured as Active/Standby with two 10Gb NICs.
- The installed server NIC model does not support GENEVE offload.
- All VM traffic is East/West.
- The business critical application VM communicates with multiple client VMs.
Which should the architect recommend to improve vSphere VM throughput?

正解:
Explanation:
Z C(D) will perform the necessary offload to greatly improve performance. The 5GBps isn’t saturating the actual pNIC, and while switching the uplink to active/active will help some, the issue will come back during a pNIC failure.

Question No : 15
Which NSX-T feature is used to allocate the network bandwidth to business-critical applications and to resolve situations where several types of traffic compete for common resources?

正解:
Explanation:
https://docs.vmware.com/en/VMware-NSX-T-Data-Center/2.2/com.vmware.nsxt.install.doc/GUID-9A8FD62A-F099-4329-8220-6D5853F9A62D.html
Use the Network I/O Control (NIOC) profile to allocate the network bandwidth to business-critical applications and to resolve situations where several types of traffic compete for common resources.
NIOC profile introduces a mechanism to reserve bandwidth for system traffic based on the capacity of the physical adapters on a host. Version 3 of the Network I/O Control feature offers improved network resource reservation and allocation across the entire switch.
Network I/O Control version 3 for NSX-T supports resource management of system traffic related to virtual machines and to infrastructure services, such as vSphere Fault Tolerance, and so on. System traffic is strictly associated with an vSphere ESXi host

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