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| Section | Objectives |
|---|---|
| Storage Management | - Aggregate and volume management
|
| Networking and Access Management | - Security and authentication
|
| Troubleshooting and Maintenance | - Software and firmware management
|
| ONTAP Cluster Architecture and Administration | - Cluster setup and configuration
|
| Data Protection | - Backup and replication
|
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問題 #50
Which two hypervisors does NetApp ONTAP Select MetroCluster SDS support? (Choose two)
答案:A,C
解題說明:
NetApp ONTAP Select delivers a software-defined storage (SDS) implementation of ONTAP running as a virtualized appliance on commodity x86 server hardware. For environments requiring disaster recovery and high availability across campus distances, NetApp offers ONTAP Select MetroCluster SDS, which provides synchronous data mirroring and automated failover capabilities across two separate physical locations.
ONTAP Select MetroCluster SDS supports two hypervisor platforms:
* VMware ESXi (Statement D): VMware vSphere environments utilizing vSphere Standard/Enterprise Plus hypervisors.
* KVM - Kernel-Based Virtual Machine (Statement A): Linux environments utilizing supported enterprise distributions (such as Red Hat Enterprise Linux).
Citrix XenServer (Statement B) and Microsoft Hyper-V (Statement C) are not supported hypervisors for ONTAP Select MetroCluster SDS configurations. Deployments on ESXi and KVM are provisioned and managed using the NetApp ONTAP Deploy utility, which automates virtual machine creation, disk pool allocation, node clustering, and mediator node assignments for split-brain avoidance.
Reference: NetApp Data Administrator, ONTAP - Core ONTAP; ONTAP Select Architecture and Best Practices; Supported Hypervisors for ONTAP Select MetroCluster SDS.
問題 #51
Fill in the blank for the following statement using the best answer from the choices that follow. A snapshot is a frozen, read-only image of the entire Data ONTAP file system that reflects the state of the____________at the time the snapshot was created.
答案:B
問題 #52
Which two types of capacity tiers are supported with FabricPool aggregates In ONTAP 9.8? (Choose two.)
答案:A,D
問題 #53
When adding nodes to an existing 2-node cluster, which feature is automatically disabled?
答案:C
解題說明:
In a 2-node ONTAP cluster, cluster HA is enabled to maintain quorum and availability with only two nodes. When additional nodes are added, the special 2-node cluster HA functionality is automatically disabled because the cluster can maintain quorum through the standard multi-node architecture.
問題 #54
Which NetApp solution uses hardware-based disk encryption?
答案:D
解題說明:
Hardware-based disk encryption in NetApp ONTAP is implemented through Self-Encrypting Drives (SEDs) utilized within NetApp Storage Encryption (NSE). SEDs are specialized hard disk drives (HDDs) or solid- state drives (SSDs) equipped with integrated hardware-level cryptographic ASIC chips built directly into the drive controller circuitry.
When data is written to an SED, the onboard drive controller encrypts every sector automatically using an internal Data Encryption Key (DEK) before committing it to physical media. When data is read, it is decrypted on the fly. Because cryptographic calculations occur directly on the drive hardware, zero CPU processing overhead is imposed on the storage storage controllers. NetApp Volume Encryption (NVE) and NetApp Aggregate Encryption (NAE) are software-based encryption technologies where the ONTAP operating system uses the controller's host CPU to encrypt blocks at the WAFL volume and aggregate layers.
IPsec is a network security protocol that secures data in flight across the network rather than securing drives at rest.
Reference: NetApp Data Administrator, ONTAP - Security; NetApp Storage Encryption (NSE); Comparing Hardware (SED) vs. Software (NVE/NAE) Encryption in ONTAP 9.
問題 #55
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