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ACA-CloudNative Questions and Answers

Question # 6

To deploy Istio, at least____worker nodes are configured for the Kubernetes cluster.

A.

1

B.

2

C.

3

D.

4

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Question # 7

Does ACK support vGPU?

A.

True

B.

False

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Question # 8

How does Alibaba Cloud accelerate AI/ML on Alibaba Cloud Container Service for Kubernetes

(ACK)? (Number of correct answers: 3)

Score 2

A.

Supports continuous training pipelines with composable workflow

B.

Scales out to hundreds of nodes to support AI/ML model training

C.

Supports heterogeneous resource management, including management of GPU, FPGA, and

RDMA-enabled resources

D.

All resources are free

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Question # 9

For worker nodes, which of the following statements are correct? (Number of correct answers: 3)

Score 2

A.

If worker node capacity is more than 1000 cores, consider using EBM (ECS Bare Metal).

B.

You should choose higher instance specifications, because you can run more tasks on a single

worker node this way, improving utilization.

C.

You should choose the lowest possible instance specification for your workers, to reduce costs.

D.

Ensure redundant worker node capacity for each running pod.

E.

Attach data disk to worker nodes, because Docker image, system logs, and temp data will

consume space. Without a data disk, systems can quickly run out of disk space.

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Question # 10

How do you collect application log data using Log Service?

Score 2

A.

Configure Kubernetes standard output in Import Data by Log Service console

B.

Configure where to store logs in each pod

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Question # 11

How to keep the data consistency in microservices architecture refer to microservice.io?

A.

Use PL/SQL Statement from RDBMS

B.

Database lock required (commit and rollback scenario)

C.

Use store procedure/function from RDBMS

D.

Use a Choreographer and Event Bus. In the failed scenario in a service, a Choreographer will use event bus to cancel all the communications among services related.

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Question # 12

CronHPA was developed by Alibaba Cloud.

Score 2

A.

True

B.

False

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Question # 13

Both Federation and Istio can achieve multi-cluster management?

Score 2

A.

True

B.

False

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Question # 14

CronHPA was developed by Alibaba Cloud.

Score 2

A.

True

B.

False

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Question # 15

Which of the following options are correct with respect to supported external metrics ? (Number

of correct answers: 3)

Score 2

A.

Log Service (Ingress)

B.

SLB

C.

CMS

D.

Network

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Question # 16

The bounded context is at the heart of_____architecture.

A.

Tighly coupled monolith

B.

Microservices

C.

Client server

D.

Agile

E.

Emerging from trial and error

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Question # 17

When we use beats to collect Alibaba Cloud Kubernetes data, to what level should we deploy it?

A.

Deployment

B.

DeamonSet

C.

Sidecar

D.

StatefulSet

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Question # 18

Can ACK register k8s cluster which is running on IDC or other cloud provider?

A.

True

B.

False

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Question # 19

Master nodes managed by Alibaba Cloud side in managed cluster of ACK.

A.

True

B.

False

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Question # 20

Alibaba Cloud Container Service for Kubernetes (ACK) supports GPU resource auto-scaling.

Score 2

A.

True

B.

False

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Question # 21

How to design Microservices in monolith architecture? (The number of correct answer: 4)

A.

Domain-Driven Design

B.

Decompose by Business capability

C.

Centralize all components(Authorization, Presentation, Business logic, Database layer) use single-tiered software application combined into a single program from a single platform

D.

Divide and conquer

E.

Decompose by Subdomain

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Question # 22

Alibaba Cloud Container Service for Kubernetes (ACK) supports the creation of multiple scaling

groups with cluster autoscaler.

Score 2

A.

True

B.

False

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Question # 23

Which type of storages does ACK support? (Number of correct answers: 5)

A.

Cloud Disk

B.

NAS

C.

OSS

D.

CPFS

E.

Local Disk

F.

HDFS

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