QUESTION: 29

You are parsing a log file that contains three columns: a timestamp, an account number (a string), and a transaction amount (a number). You want to calculate the sum of all transaction amounts for each unique account number efficiently.
Which data structure should you use?

A linked list
A hash table
A two-dimensional array
A comma-delimited string

Answer(s): B

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QUESTION: 30

Your company has a BigQuery dataset named "Master" that keeps information about employee travel and expenses. This information is organized by employee department. That means employees should only be able to view information for their department. You want to apply a security framework to enforce this requirement with the minimum number of steps.
What should you do?

Create a separate dataset for each department. Create a view with an appropriate WHERE clause to select records from a particular dataset for the specific department. Authorize this view to access records from your Master dataset. Give employees the permission to this department-specific dataset.
Create a separate dataset for each department. Create a data pipeline for each department to copy appropriate information from the Master dataset to the specific dataset for the department. Give employees the permission to this department-specific dataset.
Create a dataset named Master dataset. Create a separate view for each department in the Master dataset. Give employees access to the specific view for their department.
Create a dataset named Master dataset. Create a separate table for each department in the Master dataset. Give employees access to the specific table for their department.

Answer(s): C

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QUESTION: 31

You have an application in production. It is deployed on Compute Engine virtual machine instances controlled by a managed instance group. Traffic is routed to the instances via a HTTP(s) load balancer. Your users are unable to access your application. You want to implement a monitoring technique to alert you when the application is unavailable.
Which technique should you choose?

Smoke tests
Stackdriver uptime checks
Cloud Load Balancing - heath checks
Managed instance group - heath checks

Answer(s): B

Reference:

https://medium.com/google-cloud/stackdriver-monitoring-automation-part-3-uptime-checks-476b8507f59c

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QUESTION: 32

You are load testing your server application. During the first 30 seconds, you observe that a previously inactive Cloud Storage bucket is now servicing 2000 write requests per second and 7500 read requests per second. Your application is now receiving intermittent 5xx and 429 HTTP responses from the Cloud Storage
JSON API as the demand escalates. You want to decrease the failed responses from the Cloud Storage API.
What should you do?

Distribute the uploads across a large number of individual storage buckets.
Use the XML API instead of the JSON API for interfacing with Cloud Storage.
Pass the HTTP response codes back to clients that are invoking the uploads from your application.
Limit the upload rate from your application clients so that the dormant bucket's peak request rate is reached more gradually.

Answer(s): D

Reference:

https://cloud.google.com/storage/docs/request-rate

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Free Professional Cloud Developer Exam Braindumps (page: 8)

QUESTION: 29

QUESTION: 30

QUESTION: 31

Reference:

QUESTION: 32

Reference: