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GCP PROFESSIONAL DATA ENGINEER CERTIFICATION EXAM LATEST 2026-2027
ACTUAL EXAM WITH COMPLETE QUESTIONS AND CORRECT DETAILED
ANSWERS (100% VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED|| ||BRANDNEW!!!||
A multinational corporation is building a global inventory
database. The database will support OLTP type transactions at a
global scale. Which of the following would you consider as
possible databases for the system?
A. Cloud SQL and Cloud Spanner
B. Cloud SQL and Cloud Datastore
C. Cloud Spanner only
D. Cloud Datastore only - ANSWER-C.
The correct answer is C. Cloud Spanner is the only globally
scalable relational database for OLTP applications. Options A
and B are incorrect because Cloud SQL will not meet the
scaling requirements. Options B and D are incorrect because
Cloud Datastore does not support OLTP models.
A database administrator (DBA) who is new to Google Cloud has
asked for your help configuring network access to a Cloud SQL
PostgreSQL database. The DBA wants to ensure that traffic is
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encrypted while minimizing administrative tasks, such as
managing SQL certificates. What would you recommend?
A. Use the TLS protocol
B. Use Cloud SQL Proxy
C. Use a private IP address
D. Configure the database instance to use auto-encryption -
ANSWER-B.
The correct answer is B, Cloud SQL Proxy. Cloud SQL Proxy
provides secure access to Second Generation instances
without you having to create allow lists or configure SSL.
The proxy manages authentication and automatically
encrypts data. Option A is incorrect because TLS is the
successor to SSL. It can be used to encrypt traffic, but it
would require the DBA to manage certificates, so it is not as
good an answer as Option B. Option C is incorrect; using an
IP address does not ensure encryption of data. Option D is
incorrect; there is no such thing as an auto-encryption
feature in Cloud SQL.
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You created a Cloud SQL database that uses replication to
improve read performance. Occasionally, the read replica will be
unavailable. You haven't noticed a pattern, but the disruptions
occur once or twice a month. No DBA operations are occurring
when the incidents
occur. What might be the cause of this issue?
A. The read replica is being promoted to a standalone Cloud SQL
instance.
B. Maintenance is occurring on the read replica.
C. A backup is being performed on the read replica.
D. The primary Cloud SQL instance is failing over to the read
replica. - ANSWER-B.
The correct answer is B. Maintenance could be occurring.
Maintenance on read replicas is not restricted to the
maintenance window of the primary instance or to other
windows, so it can occur anytime. That would make the read
replica unavailable. Option A is incorrect because a database
administrator would have to promote a read replica, and the
problem stated that there is no pattern detected and DBAs
were not performing database operations. Option C is
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incorrect; backups are not performed on read replicas.
Option D is incorrect; Cloud SQL instances do not fail over to
a read replica.
Your department is experimenting with using Cloud Spanner for a
globally accessible database. You are starting with a pilot project
using a regional instance. You would like to follow Google's
recommendations for the maximum sustained CPU utilization of a
regional instance. What is the maximum CPU utilization that you
would target?
A. 50%
B. 65%
C. 75%
D. 45% - ANSWER-B.
The correct answer is B, 65%. Options A and C are not
recommended levels for any Cloud Spanner configuration.
Option D, 45%, is the recommend CPU utilization for a multi-
regional Cloud Spanner instance.
GCP PROFESSIONAL DATA ENGINEER CERTIFICATION EXAM LATEST 2026-2027
ACTUAL EXAM WITH COMPLETE QUESTIONS AND CORRECT DETAILED
ANSWERS (100% VERIFIED ANSWERS) |ALREADY GRADED A+| ||PROFESSOR
VERIFIED|| ||BRANDNEW!!!||
A multinational corporation is building a global inventory
database. The database will support OLTP type transactions at a
global scale. Which of the following would you consider as
possible databases for the system?
A. Cloud SQL and Cloud Spanner
B. Cloud SQL and Cloud Datastore
C. Cloud Spanner only
D. Cloud Datastore only - ANSWER-C.
The correct answer is C. Cloud Spanner is the only globally
scalable relational database for OLTP applications. Options A
and B are incorrect because Cloud SQL will not meet the
scaling requirements. Options B and D are incorrect because
Cloud Datastore does not support OLTP models.
A database administrator (DBA) who is new to Google Cloud has
asked for your help configuring network access to a Cloud SQL
PostgreSQL database. The DBA wants to ensure that traffic is
,2|Page
encrypted while minimizing administrative tasks, such as
managing SQL certificates. What would you recommend?
A. Use the TLS protocol
B. Use Cloud SQL Proxy
C. Use a private IP address
D. Configure the database instance to use auto-encryption -
ANSWER-B.
The correct answer is B, Cloud SQL Proxy. Cloud SQL Proxy
provides secure access to Second Generation instances
without you having to create allow lists or configure SSL.
The proxy manages authentication and automatically
encrypts data. Option A is incorrect because TLS is the
successor to SSL. It can be used to encrypt traffic, but it
would require the DBA to manage certificates, so it is not as
good an answer as Option B. Option C is incorrect; using an
IP address does not ensure encryption of data. Option D is
incorrect; there is no such thing as an auto-encryption
feature in Cloud SQL.
,3|Page
You created a Cloud SQL database that uses replication to
improve read performance. Occasionally, the read replica will be
unavailable. You haven't noticed a pattern, but the disruptions
occur once or twice a month. No DBA operations are occurring
when the incidents
occur. What might be the cause of this issue?
A. The read replica is being promoted to a standalone Cloud SQL
instance.
B. Maintenance is occurring on the read replica.
C. A backup is being performed on the read replica.
D. The primary Cloud SQL instance is failing over to the read
replica. - ANSWER-B.
The correct answer is B. Maintenance could be occurring.
Maintenance on read replicas is not restricted to the
maintenance window of the primary instance or to other
windows, so it can occur anytime. That would make the read
replica unavailable. Option A is incorrect because a database
administrator would have to promote a read replica, and the
problem stated that there is no pattern detected and DBAs
were not performing database operations. Option C is
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incorrect; backups are not performed on read replicas.
Option D is incorrect; Cloud SQL instances do not fail over to
a read replica.
Your department is experimenting with using Cloud Spanner for a
globally accessible database. You are starting with a pilot project
using a regional instance. You would like to follow Google's
recommendations for the maximum sustained CPU utilization of a
regional instance. What is the maximum CPU utilization that you
would target?
A. 50%
B. 65%
C. 75%
D. 45% - ANSWER-B.
The correct answer is B, 65%. Options A and C are not
recommended levels for any Cloud Spanner configuration.
Option D, 45%, is the recommend CPU utilization for a multi-
regional Cloud Spanner instance.
