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Google Cloud DE > Storage > Flashcards

Storage Flashcards

1
Q

[Cloud Storage (Benifits)]
What is Automatic storage class transitions?

A

With features like Object Lifecycle Management (OLM) and Autoclass, automatic object movement to colder storage classes is possible based on the last access time. No early deletion or retrieval fees or class transition charges apply.

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2
Q

[Cloud Storage (Benifits)]
What does Continental-scale and SLA-backed replication refer to?

A

A single bucket offers nine regions across three continents, providing a Recovery Time Objective (RTO) of zero. In case of an outage, data can be accessed in an alternate region without a failover and failback process. Turbo replication offers a 15 minute Recovery Point Objective (RPO) SLA.

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3
Q

[Cloud Storage (Benifits)]
Explain Fast and flexible transfer services.

A

Storage Transfer Service offers a highly performant online pathway to Cloud Storage with the scalability and speed needed to simplify data transfer. For offline data transfer, the Transfer Appliance is used.

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4
Q

[Cloud Storage (Benifits)]
What is Default and configurable data security?

A

Cloud Storage offers secure-by-design features including access control policies, data encryption, retention policies, retention policy locks, and signed URLs.

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5
Q

[Cloud Storage (Benifits)]
What tools are available for analytics and ML/AI?

A

Once data is in Cloud Storage, tools like BigQuery for data warehousing, Dataproc for open-source analytics, and Vertex AI for machine learning models are available.

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6
Q

[Cloud Storage (Benifits)]
What is Object lifecycle management?

A

Conditions can be defined that trigger data deletion or transition to a cheaper storage class.

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7
Q

[Cloud Storage (Benifits)]
What does Object Versioning entail?

A

Allows for the storage of old copies of objects even when they are deleted or overwritten.

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8
Q

[Cloud Storage (Benifits)]
What are Retention policies?

A

These define minimum periods that objects must be stored for before they can be deleted.

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9
Q

[Cloud Storage (Benifits)]
What is the purpose of Object holds?

A

Placing a hold on an object prevents its deletion.

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10
Q

[Cloud Storage (Benifits)]
Explain Customer-managed encryption keys.

A

Object data can be encrypted with keys stored by the Cloud Key Management Service and managed by the user.

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11
Q

[Cloud Storage (Benifits)]
What are Customer-supplied encryption keys?

A

Object data can be encrypted with encryption keys created and managed by the user.

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12
Q

[Cloud Storage (Benifits)]
What is Uniform bucket-level access?

A

This uniformly controls access to Cloud Storage resources by disabling object ACLs.

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13
Q

[Cloud Storage (Benifits)]
What does Requester pays mean?

A

Accessors of your data must include a project ID to be billed for network charges, operation charges, and retrieval fees.

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14
Q

[Cloud Storage (Benifits)]
What is Bucket Lock?

A

Bucket Lock allows configuration of a data retention policy that governs how long objects in the bucket must be retained.

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15
Q

[Cloud Storage (Benifits)]
What are Pub/Sub notifications for Cloud Storage?

A

Notifications can be sent to Pub/Sub when objects are created, updated, or deleted.

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16
Q

[Cloud Storage (Benifits)]
What is the purpose of Cloud Audit Logs with Cloud Storage?

A

Admin activity logs and data access logs for Cloud Storage resources can be maintained.

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17
Q

[Cloud Storage (Benifits)]
What are Object- and bucket-level permissions?

A

Cloud Identity and Access Management (IAM) allows control over who has access to buckets and objects.

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18
Q

[Cloud Filestore (Scaling)]
What is Filestore designed to meet the needs of?

A

Filestore is designed to meet the needs of the most demanding applications and scales to meet high performance workloads.

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19
Q

[Cloud Filestore (Performance)]
What are the performance specs for Filestore?

A

Filestore supports capacity up to 100 TB, throughput of 25 GB/s, and 920K IOPS.

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20
Q

[Cloud Filestore (Availability)]
What is the regional availability SLA for Filestore Enterprise?

A

99.99% regional availability SLA.

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21
Q

[Cloud Filestore (Use Case)]
What types of critical applications is Filestore Enterprise built for?

A

Filestore Enterprise is built for critical applications like SAP that require regional availability.

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22
Q

[Cloud Filestore (Data Protection)]
What backup and snapshot features does Filestore offer?

A

Filestore offers instantaneous backups and snapshots. You can back up data and metadata of the file share, set up a regular backup schedule, or take snapshots anytime you need.

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23
Q

[Cloud Filestore (Kubernetes Support)]
How does Filestore support GKE workloads?

A

Filestore supports both stateful and stateless applications running in GKE. It comes with an integrated and managed GKE Container Storage Interface (CSI) driver, allowing multiple pods to have shared file system access.

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24
Q

[Cloud Filestore (VMware Support)]
How does Filestore integrate with Google Cloud VMware Engine?

A

Filestore High Scale and Filestore Enterprise are VMware-certified as NFS datastores with Google Cloud VMware Engine. You can right-size vCPUs and storage capacity independently to meet compute and storage requirements for your storage-intensive VMs.

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25
Q

[Cloud Filestore (Capacity Scaling)]
What range can you scale Filestore in terms of capacity?

A

You can scale Filestore from terabytes (TBs) to petabytes (PBs) to meet the storage requirements of capacity-hungry VMs.

26
Q

[Cloud Filestore (Performance Tiers)]
What are the three performance tiers of Filestore?

A

Filestore Basic (HDD & SSD), Filestore Enterprise, Filestore High Scale

27
Q

[Cloud Filestore (Best for)]
What is Filestore Basic best for?

A

File sharing, GKE, software development, and web hosting

28
Q

[Cloud Filestore (Best for)]
What is Filestore Enterprise best for?

A

Critical applications like SAP, Compute Engine, and GKE workloads

29
Q

[Cloud Filestore (Best for)]
What is Filestore High Scale best for?

A

High performance computing including genome sequencing, financial services trading analysis, and other high performance workloads.

30
Q

[Cloud Filestore (Combined Specs)]
What are the combined specs for Filestore Basic?

A

Capacity: 1-63.9 TiB (HDD), 2.5-63.9 TiB (SSD); Max Read Throughput: 180 MB/s (HDD), 1,200 MB/s (SSD); Max Random IOPS: 1,000 (HDD), 60,000 (SSD)

31
Q

[Cloud Filestore (Combined Specs)]
What are the combined specs for Filestore Enterprise?

A

Capacity: 1-10 TiB; Max Read Throughput: 1,200 MB/s; Max Random IOPS: 57,000

32
Q

[Cloud Filestore (Combined Specs)]
What are the combined specs for Filestore High Scale?

A

Capacity: 10-100 TiB; Max Read Throughput: 26,000 MB/s; Max Random IOPS: 960,000

33
Q

[Persistent Disk (Disk Types)]
What is the Standard Persistent Disk best for?

A

Big data, big compute workloads. Most cost-effective disk type.

34
Q

[Persistent Disk (Disk Types)]
What is Balanced Persistent Disk best for?

A

Standard enterprise applications. Balance of performance and cost.

35
Q

[Persistent Disk (Disk Types)]
What is Performance Persistent Disk best for?

A

Scale-out analytics, databases, persistent cache. Performance-sensitive workloads.

36
Q

[Persistent Disk (Disk Types)]
What is Extreme Persistent Disk best for?

A

Enterprise applications like SAP HANA, Oracle. Highest performance for largest in-memory databases.

37
Q

[Persistent Disk (Disk Types)]
What is Local SSD best for?

A

Hot cache for databases and real-time analytics. Flash-optimized ephemeral storage offering the lowest latencies.

38
Q

[Persistent Disk (Scalability)]
How does Persistent Disk handle scalability?

A

Allows you to flexibly resize your block storage while it’s in use by one or more virtual machines. Performance scales automatically with size.

39
Q

[Persistent Disk (Disk Clones)]
What are Disk Clones used for?

A

Quickly bring up staging environments from production, create new disks for backup verification or data export jobs, and create disks in a different project.

40
Q

[Persistent Disk (Local SSD Option)]
What advantages does the Local SSD option offer?

A

Superior performance, very high IOPS, and very low latency compared to other block storage options. Often used for temporary storage.

41
Q

[Persistent Disk (Decoupled Storage)]
How is Persistent Disk decoupled from compute?

A

Storage is located independently from VM instances, so you can detach or move your disks to keep your data even after you delete your instances.

42
Q

[Persistent Disk (Data Backup)]
How can you back up data on Persistent Disk?

A

Create snapshots to periodically back up data from your zonal or regional Persistent Disks. Setting up a snapshot schedule is a best practice.

43
Q

[Persistent Disk (Machine Images)]
What are Machine Images used for?

A

To store all the configuration, metadata, permissions, and data from one or more disks for a VM instance running on Compute Engine.

44
Q

[Persistent Disk (Asynchronous Replication)]
What is the purpose of Asynchronous Replication?

A

Provides low RPO and low RTO block storage replication for cross-region disaster recovery. Enables data failover to a secondary region.

45
Q

[Persistent Disk (Regional Persistent Disk)]
What are the benefits of using Regional Persistent Disk?

A

Provides synchronous replication of data between two zones in the same region. Offers zero RPO and low RTO, making it a good choice for implementing high availability services in Compute Engine.

46
Q

[Persistent Disk (Disk Types)]
List all the Persistent Disk types.

A

Standard Persistent Disks (HDD), Balanced Persistent Disks (SSD), Performance Persistent Disks (SSD), Extreme Persistent Disks (SSD), Local SSDs.

47
Q

[Local SSD (General Overview)]
What is the primary use-case of Local SSDs?

A

Local SSDs are designed for high-performance, ephemeral storage use-cases such as caches or scratch processing space. Suitable for media rendering, data analytics, and high-performance computing.

48
Q

[Local SSD (Performance)]
What is the IOPS for Local SSD?

A

Reach IOPS of 2,400,000 / 1,200,000 (read/write) for 9 TB instances.

49
Q

[Local SSD (Throughput)]
What is the maximum throughput for Local SSD?

A

Throughput up to 9,360 MB per second / 4,680 MB per second for 9 TB instances.

50
Q

[Local SSD (Scalability)]
How can Local SSD storage be scaled?

A

Attach up to 24 Local SSD partitions for 9 TB of total Local SSD storage space per instance. You can also format and mount multiple Local SSD partitions into a single logical volume.

51
Q

[Local SSD (VM Customization)]
Can you customize VM shapes for Local SSDs?

A

Yes, depending on your workload, you can attach custom-sized disks to your VMs, allowing you to tailor your storage to your specific needs and budget.

52
Q

[Local SSD (Security)]
How is data security managed for Local SSDs?

A

Data stored on Local SSDs is automatically encrypted at rest with an ephemeral encryption key.

53
Q

[Local SSD (Supported Workloads)]
What are the typical workloads supported?

A

Local SSDs are suitable for a range of workloads, including data analytics, media rendering, and gaming.

54
Q

[Persistent Disk’ vs ‘Local SSD’ (Durability)]
How is data safeguarded?

A

Persistent Disk: Highly durable; Local SSD: Ephemeral, data lost if VM terminates.

55
Q

[Persistent Disk’ vs ‘Local SSD’ (Flexibility)]
Can it attach to multiple VMs?

A

Persistent Disk: Yes, can detach and reattach; Local SSD: No, fixed to one VM.

56
Q

[Persistent Disk’ vs ‘Local SSD’ (Scalability)]
Can size be changed on-the-fly?

A

Persistent Disk: Yes; Local SSD: No, but can add more partitions.

57
Q

[Persistent Disk’ vs ‘Local SSD’ (Storage Types)]
What storage types are available?

A

Persistent Disk: Multiple types; Local SSD: One high-performance type.

58
Q

[Persistent Disk’ vs ‘Local SSD’ (Data Replication)]
Is replication supported?

A

Persistent Disk: Yes, both synchronous and asynchronous; Local SSD: No.

59
Q

[Persistent Disk’ vs ‘Local SSD’ (Security)]
How is data secured?

A

Both offer automatic encryption, but Local SSD is more ephemeral.

60
Q

[Persistent Disk’ vs ‘Local SSD’ (Performance)]
How does it handle high-demand tasks?

A

Persistent Disk: Scales with disk size and VM vCPUs; Local SSD: Very high IOPS and throughput.

Google Cloud DE (3 decks)

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