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This page contains all GCP Professional Cloud Architect exam questions with answers.
How to use: Review all questions below. The correct answer is highlighted in green. You can print this page or save as PDF for offline studying.
Question 1
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.
FROM ubuntu:16.04
COPY . /src
RUN apt-get update && apt-get install -y python python-pip
RUN pip install -r requirements.txt
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.
Question 2
Your application needs to process credit card transactions. You want the
smallest scope of Payment Card Industry (PCI) compliance without compromising the ability to analyze
transactional data and Trends relating to which payment methods are used. How should you design your
architecture?
Question 3
As part of implementing their disaster recovery plan, your company is trying
to replicate their production MySQL database from their private data center to their GCP project
using a Google Cloud VPN connection. They are experiencing latency issues and a small amount of
packet loss that is disrupting the replication. What should they do?
Question 4
You need to upload files from your on-premises environment to Cloud Storage. You want the files to
be encrypted on Cloud Storage using customer-supplied encryption keys. What should you do?
Question 5
You are using Cloud CDN to deliver static HTTP(S) website content hosted on a Compute Engine
instance group. You want to improve the cache hit ratio. What should you do?
Question 6
For this question, refer to the JencoMart case study. JencoMart has built a version of their
application on Google Cloud Platform that serves traffic to Asia. You want to measure success
against their business and technical goals. Which metrics should you track?
Question 7
You want to automate the creation of a managed instance group and a startup script to install the OS
package dependencies. You want to minimize the startup time for VMs in the instance group. What
should you do?
Question 8
For this question, refer to the Dress4Win case study. You are responsible for the security of data
stored in Cloud Storage for your company, Dress4Win. You have already created a set of Google Groups
and assigned the appropriate users to those groups. You should use Google best practices and
implement the simplest design to meet the requirements. Considering Dress4Win’s business and
technical requirements, what should you do?
Question 9
For this question, refer to the TerramEarth case study. TerramEarth has equipped unconnected trucks
with servers and sensors to collect telemetry data. Next year they want to use the data to train
machine learning models. They want to store this data in the cloud while reducing costs. What should
they do?
Question 10
You have an application that makes HTTP requests to Cloud Storage. Occasionally the requests fail
with HTTP status codes of 5xx and 429. How should you handle these types of errors?
Question 11
For this question, refer to the Dress4Win case study. Dress4Win has configured a new uptime check
with Google Stackdriver for several of their legacy services. The Stackdriver dashboard is not
reporting the services as healthy. What should they do?
Question 12
For this question, refer to the Mountkirk Games case study. Mountkirk Games' gaming servers are not
automatically scaling properly. Last month, they rolled out a new feature, which suddenly became
very popular. A record number of users are trying to use the service, but many of them are getting
503 errors and very slow response times. What should they investigate first?
Question 13
For this question, refer to the Mountkirk Games case study. Mountkirk Games wants you to design
their new testing strategy. How should the test coverage differ from their existing backends on the
other platforms?
Question 14
You need to develop procedures to test a disaster plan for a mission-critical application. You want
to use Google-recommended practices and native capabilities within GCP. What should you do?
Question 15
For this question, refer to the Dress4Win case study. At Dress4Win, an operations engineer wants to
create a low-cost solution to remotely archive copies of database backup files. The database files
are compressed tar files stored in their current data center. How should he proceed?
Question 16
Your company has decided to make a major revision of their API in order to create better experiences
for their developers. They need to keep the old version of the API available and deployable, while
allowing new customers and testers to try out the new API. They want to keep the same SSL and DNS
records in place to serve both APIs. What should they do?
Question 17
Your company plans to migrate a multi-petabyte data set to the cloud. The data set must be available
24hrs a day. Your business analysts have experience only with using a SQL interface. How should you
store the data to optimize it for ease of analysis?
Question 18
The operations manager asks you for a list of recommended practices that she should consider when
migrating a J2EE application to the cloud. Which three practices should you recommend? (Choose
three.)
Question 19
A news feed web service has the following code running on Google App Engine. During peak load, users
report that they can see news articles they already viewed. What is the most likely cause of this
problem?
import news
from flask import Flask, redirect, request
from flask.ext.api import status
from google.appengine.api import users
app = Flask(__name__)
sessions = {}
@app.route("/")
def homepage():
user = users.get_current_user()
if not user:
return "Invalid login", status.HTTP_401_UNAUTHORIZED
if user not in sessions:
sessions[user] = {"viewed": []}
news_articles = news.get_new_news(user, sessions[user]["viewed"])
sessions[user]["viewed"] += [n["id"] for n in news_articles]
return news.render(news_articles)
if __name__ == "__main__":
app.run()
Question 20
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?
Question 21
You need to reduce the number of unplanned rollbacks of erroneous production deployments in your
company's web hosting platform. Improvement to the QA/Test processes accomplished an 80% reduction.
Which additional two approaches can you take to further reduce the rollbacks? (Choose two.)
Question 22
To reduce costs, the Director of Engineering has required all developers to move their development
infrastructure resources from on-premises virtual machines (VMs) to Google Cloud Platform. These
resources go through multiple start/stop events during the day and require state to persist. You
have been asked to design the process of running a development environment in Google Cloud while
providing cost visibility to the finance department. Which two steps should you take? (Choose two.)
Question 23
Your company wants to track whether someone is present in a meeting room reserved for a scheduled
meeting. There are 1000 meeting
rooms across 5 offices on 3 continents. Each room is equipped with a motion sensor that reports its
status every second. The data from the motion detector includes only a sensor ID and several
different discrete items of
information. Analysts will use this data, together with information about account owners and office
locations.
Which database type should you use?
Which database type should you use?
Question 24
You set up an autoscaling instance group to serve web traffic for an upcoming launch. After
configuring the
instance group as a backend service to an HTTP(S) load balancer, you notice that virtual machine
(VM)
instances are being terminated and re-launched every minute. The instances do not have a public IP
address.
You have verified the appropriate web response is coming from each instance using the curl command.
You want
to ensure the backend is configured correctly. What should you do?
Question 25
You write a Python script to connect to Google BigQuery from a Google Compute Engine virtual
machine. The script is printing errors that it cannot connect to BigQuery. What should you do to fix
the script?
Question 26
Your customer is moving an existing corporate application to Google Cloud Platform from an
on-premises data center. The business owners require minimal user disruption. There are strict
security team requirements for storing passwords. What authentication strategy should they use?
Question 27
Your company has successfully migrated to the cloud and wants to analyze their data stream to
optimize operations. They do not have any existing code for this analysis, so they are exploring all
their options. These options include a mix of batch and stream processing, as they are running some
hourly jobs and live-processing some data as it comes in. Which technology should they use for this?
Question 28
Your customer is receiving reports that their recently updated Google App Engine application is
taking approximately 30 seconds to load for some of their users. This behavior was not reported
before the update. What strategy should you take?
Question 29
A production database virtual machine on Google Compute Engine has an ext4-formatted persistent disk
for data files. The database is about to run out of storage space. How can you remediate the problem
with the least amount of downtime?
Question 30
Your application needs to process credit card transactions. You want the smallest scope of Payment
Card Industry (PCI) compliance without compromising the ability to analyze transactional data and
trends relating to which payment methods are used. How should you design your architecture?
Question 31
You have been asked to select the storage system for the click-data of your company's large
portfolio of websites. This data is streamed in from a custom website analytics package at a typical
rate of 6,000 clicks per minute. With bursts of up to 8,500 clicks per second. It must have been
stored for future analysis by your data science and user experience teams. Which storage
infrastructure should you choose?
Question 32
You are creating a solution to remove backup files older than 90 days from your backup Cloud Storage
bucket. You want to optimize ongoing Cloud Storage spend. What should you do?
Question 33
Your company is forecasting a sharp increase in the number and size of Apache Spark and Hadoop jobs
being run on your local datacenter. You want to utilize the cloud to help you scale this upcoming
demand with the least amount of operations work and code change. Which product should you use?
Question 34
The database administration team has asked you to help them improve the performance of their new
database server running on Google Compute Engine. The database is for importing and normalizing
their performance statistics and is built with MySQL running on Debian Linux. They have an
n1-standard-8 virtual machine with 80 GB of SSD persistent disk. What should they change to get
better performance from this system?
Question 35
You want to optimize the performance of an accurate, real-time, weather-charting application. The
data comes from 50,000 sensors sending 10 readings a second, in the format of a timestamp and sensor
reading. Where should you store the data?
Question 36
Your company's user-feedback portal comprises a standard LAMP stack replicated across two zones. It
is deployed in the us-central1 region and uses autoscaled managed instance groups on all layers,
except the database. Currently, only a small group of select customers have access to the portal.
The portal meets a 99.99% availability SLA under these conditions.
However, next quarter, your company will be making the portal available to all users, including unauthenticated users. You need to develop a resiliency testing strategy to ensure the system maintains the SLA once they introduce additional user load.
What should you do?
However, next quarter, your company will be making the portal available to all users, including unauthenticated users. You need to develop a resiliency testing strategy to ensure the system maintains the SLA once they introduce additional user load.
What should you do?
Question 37
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 two.)
FROM ubuntu:16.04 COPY . /src RUN apt-get update && apt-get install -y python python-pip RUN pip install -r requirements.txt
You want to optimize this Dockerfile for faster deployment times without adversely affecting the app’s functionality.
Which two actions should you take? (Choose two.)
Question 38
Your solution is producing performance bugs in production that you did not see in staging and test
environments. You want to adjust your test and deployment procedures to avoid this problem in the
future.
What should you do?
What should you do?
Question 39
A small number of API requests to your microservices-based application take a very long time. You
know that each request to the API can traverse many services.
You want to know which service takes the longest in those cases.
What should you do?
You want to know which service takes the longest in those cases.
What should you do?
Question 40
During a high traffic portion of the day, one of your relational databases crashes, but the replica
is never promoted to a master. You want to avoid this in the future.
What should you do?
What should you do?
Question 41
Your organization requires that metrics from all applications be retained for 5 years for future
analysis in possible legal proceedings.
Which approach should you use?
Which approach should you use?
Question 42
Your company has decided to build a backup replica of their on-premises user authentication
PostgreSQL database on Google Cloud Platform. The database is 4 TB, and large updates are frequent.
Replication requires private address space communication.
Which networking approach should you use?
Which networking approach should you use?
Question 43
Auditors visit your teams every 12 months and ask to review all the Google Cloud Identity and Access
Management (Cloud IAM) policy changes in the previous 12 months. You want to streamline and expedite
the analysis and audit process.
What should you do?
What should you do?
Question 44
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?
Where should you store the credentials?
Question 45
A lead engineer wrote a custom tool that deploys virtual machines in the legacy data center. He
wants to migrate the custom tool to the new cloud environment.
You want to advocate for the adoption of Google Cloud Deployment Manager.
What are two business risks of migrating to Cloud Deployment Manager? (Choose two.)
You want to advocate for the adoption of Google Cloud Deployment Manager.
What are two business risks of migrating to Cloud Deployment Manager? (Choose two.)
Question 46
A development manager is building a new application. He asks you to review his requirements and
identify what cloud technologies he can use to meet them. The application must:
- Be based on open-source technology for cloud portability
- Dynamically scale compute capacity based on demand
- Support continuous software delivery
- Run multiple segregated copies of the same application stack
- Deploy application bundles using dynamic templates
- Route network traffic to specific services based on URL
Question 47
You have created several pre-emptible Linux virtual machine instances using Google Compute Engine.
You want to properly shut down your application before the virtual machines are preempted.
What should you do?
What should you do?
Question 48
Your organization has a 3-tier web application deployed in the same network on Google Cloud
Platform. Each tier (web, API, and database) scales independently of the others. Network traffic
should flow through the web to the API tier and then on to the database tier. Traffic should not
flow between the web and the database tier.
How should you configure the network?
How should you configure the network?
Question 49
Your development team has installed a new Linux kernel module on the batch servers in Google Compute
Engine (GCE) virtual machines (VMs) to speed up the nightly batch process. Two days after the
installation, 50% of the batch servers failed the nightly batch run. You want to collect details on
the failure to pass back to the development team.
Which three actions should you take? (Choose three.)
Which three actions should you take? (Choose three.)
Question 50
Your company wants to try out the cloud with low risk. They want to archive approximately 100 TB of
their log data to the cloud and test the analytics features available to them there, while also
retaining that data as a long-term disaster recovery backup.
Which two steps should you take? (Choose two.)
Which two steps should you take? (Choose two.)
Question 51
You created a pipeline that can deploy your source code changes to your infrastructure in instance
groups for self-healing. One of the changes negatively affects your key performance indicator. You
are not sure how to fix it, and investigation could take up to a week.
What should you do?
What should you do?
Question 52
Your organization wants to control IAM policies for different departments independently, but
centrally.
Which approach should you take?
Which approach should you take?
Question 53
You deploy your custom Java application to Google App Engine. It fails to deploy and gives you the
following stack trace.
What should you do?
java.lang.SecurityException: SHA1 digest error for com/Altostrat/CloakedServlet.class
at com.google.appengine.runtime.Request.process_d36E18a24b8cf1d (Request.java)
at sun.security.util.ManifestEntryVerifier.verify (ManifestEntryVerifier.java:210)
at java.util.jar.JarVerifier.processEntry (JarVerifier.java:218)
at java.util.jar.JarVerifier.update (JarVerifier.java:205)
at java.util.jar.JarVerifier$VerifierStream.read (JarVerifier.java:428)
at sun.misc.Resource.getBytes (Resource.java:124)
at java.net.URLClassLoader.defineClass (URLClassLoader.java:273)
at sun.reflect.GeneratedMethodAccessor5.invoke (Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:616)
at java.lang.ClassLoader.loadClass (ClassLoader.java:266)
What should you do?
Question 54
You are designing a mobile chat application. You want to ensure people cannot spoof chat messages,
by providing a message were sent by a specific user.
What should you do?
What should you do?
Question 55
As part of implementing their disaster recovery plan, your company is trying to replicate their
production MySQL database from their private data center to their GCP project using a Google Cloud
VPN connection. They are experiencing latency issues and a small amount of packet loss that is
disrupting the replication.
What should they do?
What should they do?
Question 56
Your customer support tool logs all email and chat conversations to Cloud Bigtable for retention and
analysis. What is the recommended approach for sanitizing this data of personally identifiable
information or payment card information before initial storage?
Question 57
You are using Cloud Shell and need to install a custom utility for use in a few weeks. Where can you
store the file so it is in the default execution path and persists across sessions?
Question 58
You want to create a private connection between your instances on Compute Engine and your
on-premises data center. You require a connection of at least 20 Gbps. You want to follow
Google-recommended practices. How should you set up the connection?
Question 59
You are analyzing and defining business processes to support your startup's trial usage of GCP, and
you don't yet know what consumer demand for your product will be. Your manager requires you to
minimize GCP service costs and adhere to Google best practices. What should you do?
Question 60
You are building a continuous deployment pipeline for a project stored in a Git source repository
and want to ensure that code changes can be verified before deploying to production. What should you
do?
Question 61
You have an outage in your Compute Engine managed instance group: all instances 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?
Question 62
Your company is migrating its on-premises data center into the cloud. As part of the migration, you
want to integrate Google Kubernetes Engine (GKE) for workload orchestration. Parts of your
architecture must also be PCI DSS-compliant. Which of the following is most accurate?
Question 63
Your company has multiple on-premises systems that serve as sources for reporting. The data has not
been maintained well and has become degraded over time. You want to use Google-recommended practices
to detect anomalies in your company data. What should you do?
Question 64
Google Cloud Platform resources are managed hierarchically using organization, folders, and
projects. When Cloud Identity and Access Management (IAM) policies exist at these different levels,
what is the effective policy at a particular node of the hierarchy?
Question 65
You are migrating your on‑premises solution to Google Cloud in several phases. You will use Cloud
VPN to maintain a connection between your on‑premises systems and Google Cloud until the migration
is completed. You want to make sure all your on‑premise systems remain reachable during this period.
How should you organize your networking in Google Cloud?
Question 66
You have found an error in your App Engine application caused by missing Cloud Datastore indexes.
You have created a YAML file with the required indexes and want to deploy these new indexes to Cloud
Datastore. What should you do?
Question 67
You have an application that will run on Compute Engine. You need to design an architecture that
takes into account a disaster recovery plan that requires your application to fail over to another
region in case of a regional outage. What should you do?
Question 68
You are deploying an application on App Engine that needs to integrate with an on-premises database.
For security purposes, your on-premises database must not be accessible through the public internet.
What should you do?
Question 69
You are working in a highly secured environment where public Internet access from the Compute Engine
VMs is not allowed. You do not yet have a VPN connection to access an on-premises file server. You
need to install specific software on a Compute Engine instance. How should you install the software?
Question 70
Your company is moving 75 TB of data into Google Cloud. You want to use Cloud Storage and follow
Google-recommended practices. What should you do?
Question 71
You have an application deployed on Google Kubernetes Engine using a Deployment named
echo-deployment. The deployment is exposed using a Service called echo-service. You need to perform
an update to the application with minimal downtime to the application. What should you do?
Question 72
Your company is using BigQuery as its enterprise data warehouse. Data is distributed over several
Google Cloud projects. All queries on BigQuery need to be billed on a single project. You want to
make sure that no query costs are incurred on the projects that contain the data. Users should be
able to query the datasets, but not edit them.
How should you configure users access roles?
How should you configure users access roles?
Question 73
You have developed an application using Cloud ML Engine that recognizes famous paintings from
uploaded images. You want to test the application and allow specific people to upload images for the
next 24 hours. Not all users have a Google Account. How should you have users upload images?
Question 74
Your web application must comply with the requirements of the European Union's General Data
Protection Regulation (GDPR). You are responsible for the technical architecture of your web
application. What should you do?
Question 75
You need to set up Microsoft SQL Server on GCP. Management requires that there's no downtime in case
of a data center outage in any of the zones within a GCP region. What should you do?
Question 76
The development team has provided you with a Kubernetes Deployment file. You have no infrastructure
yet and need to deploy the application. What should you do?
Question 77
You need to evaluate your team readiness for a new GCP project. You must perform the evaluation and
create a skills gap plan which incorporates the business goal of cost optimization.Your team has
deployed two GCP projects successfully to date. What should
you do?
Question 78
You are designing an application for use only during business hours. For the minimum viable product
release, you'd like to use a managed product that automatically "scales to zero" so you don't incur
costs when there is no activity. Which primary compute resource should you choose?
Question 79
You are creating an App Engine application that uses Cloud Datastore as its persistence layer. You
need to retrieve several root entities for which you have the identifiers. You want to minimize the
overhead in operations performed by Cloud Datastore. What should you do?
Question 80
You need to upload files from your on-premises environment to Cloud Storage. You want the files to
be encrypted on Cloud Storage using customer-supplied encryption keys. What should you do?
Question 81
Your customer wants to capture multiple GBs of aggregate real-time key performance indicators (KPIs)
from their game servers running on Google Cloud Platform and monitor the KPIs with low latency. How
should they capture the KPIs?
Question 82
You have a Python web application with many dependencies that requires 0.1 CPU cores and 128 MB of
memory to operate in production. You want to monitor and maximize machine utilization. You also want
to reliably deploy new versions of the application. Which set of steps should you take?
Question 83
Your company wants to start using Google Cloud resources but wants to retain their on-premises
Active Directory domain controller for identity management. What should you do?
Question 84
You are running a cluster on Kubernetes Engine (GKE) to serve a web application. Users are reporting
that a specific part of the application is not responding anymore. You notice that all pods of your
deployment keep restarting after 2 seconds. The application writes logs to standard output. You want
to inspect the logs to find the cause of the issue. Which approach can you take?
Question 85
You are using a single Cloud SQL instance to serve your application from a specific zone. You want
to introduce high availability. What should you do?
Question 86
Your company is running a stateless application on a Compute Engine instance. The application is
used heavily during regular business hours and lightly outside of business hours. Users are
reporting that the application is slow
during peak hours. You need to optimize the application's performance. What should you do?
Question 87
Your web application has several VM instances running within a VPC. You want to restrict
communications between instances to only the paths and ports you authorize, but you don't want to
rely on static IP addresses or subnets because the app can autoscale. How should you restrict
communications?
Question 88
You are using Cloud SQL as the database backend for a large CRM deployment. You want to scale as
usage increases and ensure that you don't run out of storage, maintain 75% CPU usage cores, and keep
replication lag below 60 seconds. What are the correct steps to meet your requirements?
Question 89
You are tasked with building an online analytical processing (OLAP) marketing analytics and
reporting tool. This requires a relational database that can operate on hundreds of terabytes of
data. What is the Google-recommended tool for such applications?
Question 90
You have deployed an application to Google Kubernetes Engine (GKE), and are using the Cloud SQL
proxy container to make the Cloud SQL database available to the services running on Kubernetes. You
are notified that the application is reporting database connection issues. Your company policies
require a post- mortem. What should you do?
Question 91
Your company pushes batches of sensitive transaction data from its application server VMs to Cloud
Pub/Sub for processing and storage. What is the Google-recommended way for your application to
authenticate to the required Google Cloud services?
Question 92
You want to establish a Compute Engine application in a single VPC across two regions. The
application must communicate over VPN to an on-premises network.
How should you deploy the VPN?
How should you deploy the VPN?
Question 93
Your applications will be writing their logs to BigQuery for analysis. Each application should have
its own table. Any logs older than 45 days should be removed.
You want to optimize storage and follow Google-recommended practices. What should you do?
You want to optimize storage and follow Google-recommended practices. What should you do?
Question 94
You want your Google Kubernetes Engine cluster to automatically add or remove nodes based on CPU
load.
What should you do?
What should you do?
Question 95
You need to develop procedures to verify resilience of disaster recovery for remote recovery using
GCP. Your production environment is hosted on-premises. You need to establish a secure, redundant
connection between your on-premises network and the GCP network.
What should you do?
What should you do?
Question 96
Your company operates nationally and plans to use GCP for multiple batch workloads, including some
that are not time-critical. You also need to use GCP services that are HIPAA-certified and manage
service costs.
How should you design to meet Google best practices?
How should you design to meet Google best practices?
Question 97
Your customer wants to do resilience testing of their authentication layer. This consists of a
regional managed instance group serving a public REST API that reads from and writes to a Cloud SQL
instance.
What should you do?
What should you do?
Question 98
Your BigQuery project has several users. For audit purposes, you need to see how many queries each
user ran in the last month. What should you do?
Question 99
You want to automate the creation of a managed instance group. The VMs have many OS package
dependencies. You want to minimize the startup time for new VMs in the instance group.
What should you do?
What should you do?
Question 100
Your company captures all web traffic data in Google Analytics 360 and stores it in BigQuery. Each
country has its own dataset. Each dataset has multiple tables.
You want analysts from each country to be able to see and query only the data for their respective countries.
How should you configure the access rights?
You want analysts from each country to be able to see and query only the data for their respective countries.
How should you configure the access rights?
Question 101
You have been engaged by your client to lead the migration of their application infrastructure to
GCP. One of their current problems is that the on-premises high performance SAN is requiring
frequent and expensive upgrades to keep up with the variety of workloads that are identified as
follows:
- 20 TB of log archives retained for legal reasons
- 500 GB of VM boot/data volumes and templates
- 500 GB of image thumbnails
- 200 GB of customer session state data that allows customers to restart sessions even if off-line for several days.
Question 102
Your web application uses Google Kubernetes Engine to manage several workloads. One workload
requires a consistent set of hostnames even after pod scaling and relaunches.
Which feature of Kubernetes should you use to accomplish this?
Which feature of Kubernetes should you use to accomplish this?
Question 103
Your architecture calls for the centralized collection of all admin activity and VM system logs
within your project.
How should you collect these logs from both VMs and services?
How should you collect these logs from both VMs and services?