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Google Professional-Cloud-Architect 考試大綱：

主題 簡介
主題 1
  • Analyzing and Pptimizing Technical and Business Processes
  • Analyzing and Defining Technical Processes, Software Development Lifecycle Plan
主題 2
  • Designing a Solution Infrastructure that Meets Technical Requirements
  • High Availability and Failover Design
主題 3
  • Managing Implementation
  • Ensuring Solution and Operations Reliability
  • Deployment and Release Management
主題 4
  • Envisioning Future Solution Improvements
  • Cloud and Technology Improvements
  • Evangelism and Advocacy
主題 5
  • Designing a Solution Infrastructure that Meets Business Requirements
  • Business Use Cases and Product Strategy

最新的 Google Cloud Certified Professional-Cloud-Architect 免費考試真題 (Q134-Q139):

問題 #134
For this question, refer to the JencoMart case study.
JencoMart has decided to migrate user profile storage to Google Cloud Datastore and the application servers to Google Compute Engine (GCE). During the migration, the existing infrastructure will need access to Datastore to upload the data. What service account key- management strategy should you recommend?

  • A. Deploy a custom authentication service on GCE/Google Container Engine (GKE) for the on-premises infrastructure and use GCP managed keys for the VMs.
  • B. Authenticate the on-premises infrastructure with a user account and provision service account keys for the VMs.
  • C. Provision service account keys for the on-premises infrastructure and use Google Cloud Platform (GCP) managed keys for the VMs
  • D. Provision service account keys for the on-premises infrastructure and for the GCE virtual machines (VMs).

答案：C 解題說明：
https://cloud.google.com/iam/docs/understanding-service-accounts
問題 #135
An application development team believes their current logging tool will not meet their needs for their new cloud-based product. They want a better tool to capture errors and help them analyze their historical log data.
You want to help them find a solution that meets their needs.
What should you do?

  • A. Help them upgrade their current tool to take advantage of any new features
  • B. Send them a list of online resources about logging best practices
  • C. Direct them to download and install the Google StackDriver logging agent
  • D. Help them define their requirements and assess viable logging tools

答案：C 解題說明：
The Stackdriver Logging agent streams logs from your VM instances and from selected third party software packages to Stackdriver Logging. Using the agent is optional but we recommend it. The agent runs under both Linux and Microsoft Windows.
Note: Stackdriver Logging allows you to store, search, analyze, monitor, and alert on log data and events from Google Cloud Platform and Amazon Web Services (AWS). Our API also allows ingestion of any custom log data from any source. Stackdriver Logging is a fully managed service that performs at scale and can ingest application and system log data from thousands of VMs. Even better, you can analyze all that log data in real time.
References: https://cloud.google.com/logging/docs/agent/installation
https://medium.com/google-cloud/hidden-super-powers-of-stackdriver-logging-ca110dae7e74
問題 #136
One of the developers on your team deployed their application in Google Container Engine with the Dockerfile below. They report that their application deployments are taking too long.

You want to optimize this Dockerfile for faster deployment times without adversely affecting the app's functionality.
Which two actions should you take? Choose 2 answers.

  • A. Use larger machine types for your Google Container Engine node pools.
  • B. Remove dependencies from requirements.txt.
  • C. Copy the source after the package dependencies (Python and pip) are installed.
  • D. Remove Python after running pip.
  • E. Use a slimmed-down base image like Alpine linux.

答案：C,E 解題說明：
Explanation
The speed of deployment can be changed by limiting the size of the uploaded app, limiting the complexity of the build necessary in the Dockerfile, if present, and by ensuring a fast and reliable internet connection.
Note: Alpine Linux is built around musl libc and busybox. This makes it smaller and more resource efficient than traditional GNU/Linux distributions. A container requires no more than 8 MB and a minimal installation to disk requires around 130 MB of storage. Not only do you get a fully-fledged Linux environment but a large selection of packages from the repository.
References: https://groups.google.com/forum/#!topic/google-appengine/hZMEkmmObDU
https://www.alpinelinux.org/about/
問題 #137
You are designing a large distributed application with 30 microservices. Each of your distributed microservices needs to connect to a database back-end. You want to store the credentials securely.
Where should you store the credentials?

  • A. In a secret management system
  • B. In a config file that has restricted access through ACLs
  • C. In an environment variable
  • D. In the source code

答案：A 解題說明：
A is not correct because storing credentials in source code and source control is discoverable, in plain text, by anyone with access to the source code. This also introduces the requirement to update code and do a deployment each time the credentials are rotated.
B is not correct because consistently populating environment variables would require the credentials to be available, in plain text, when the session is started.
C is correct because key management systems generate, use, rotate, encrypt, and destroy cryptographic keys and manage permissions to those keys.
D is not correct because instead of managing access to the config file and updating manually as keys are rotated, it would be better to leverage a key management system. Additionally, there is increased risk if the config file contains the credentials in plain text.
https://cloud.google.com/kms/
問題 #138
You have an outage in your Compute Engine managed instance group: all instance keep restarting after 5 seconds. You have a health check configured, but autoscaling is disabled. Your colleague, who is a Linux expert, offered to look into the issue. You need to make sure that he can access the VMs. What should you do?

  • A. Perform a rolling restart on the instance group
  • B. Disable the health check for the instance group. Add his SSH key to the project-wide SSH keys
  • C. Disable autoscaling for the instance group. Add his SSH key to the project-wide SSH Keys
  • D. Grant your colleague the IAM role of project Viewer

答案：B
問題 #139
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