You are deploying a PHP App Engine Standard service with SQL as the backend. You want to minimize the number of queries to the database.
What should you do?

• A.Set the memcache service level to dedicated. Create a key from the hash of the query, and return database values from memcache before issuing a query to Cloud SQL.
• B.Set the memcache service level to dedicated. Create a cron task that runs every minute to populate the cache with keys containing query results.
• C.Set the memcache service level to shared. Create a cron task that runs every minute to save all expected queries to a key called "cached-queries".
• D.Set the memcache service level to shared. Create a key called "cached-queries", and return database values from the key before using a query to Cloud SQL.

Comment: *

Name: *

Email: *

Verification: *

Dress4Win has end-to-end tests covering 100% of their endpoints.
They want to ensure that the move to the cloud does not introduce any new bugs.
Which additional testing methods should the developers employ to prevent an outage?

• A.They should run the end-to-end tests in the cloud staging environment to determine if the code is working as intended.
• B.They should enable Google Stackdriver Debugger on the application code to show errors in the code.
• C.They should add canary tests so developers can measure how much of an impact the new release causes to latency.
• D.They should add additional unit tests and production scale load tests on their cloud staging environment.

Comment: *

Name: *

Email: *

Verification: *

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?

• A.Flat file
• B.NoSQL
• C.Relational
• D.Blobstore

Correct Answer: B

Relational databases were not designed to cope with the scale and agility challenges that face modern applications, nor were they built to take advantage of the commodity storage and processing power available today.
NoSQL fits well for:
Developers are working with applications that create massive volumes of new, rapidly changing

data types - structured, semi-structured, unstructured and polymorphic data.
Incorrect Answers:
D: The Blobstore API allows your application to serve data objects, called blobs, that are much larger than the size allowed for objects in the Datastore service. Blobs are useful for serving large files, such as video or image files, and for allowing users to upload large data files.
References: https://www.mongodb.com/nosql-explained

Comment: *

Name: *

Email: *

Verification: *

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?

• A.Use gRPC instead of HTTP for better performance.
• B.Implement retry logic using a truncated exponential backoff strategy.
• C.Make sure the Cloud Storage bucket is multi-regional for geo-redundancy.
• D.Monitor https://status.cloud.google.com/feed.atom and only make requests if Cloud Storage is not reporting an incident.

Comment: *

Name: *

Email: *

Verification: *

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?

• A.Create a read replica instance in a different region
• B.Create a failover replica instance in a different region
• C.Create a read replica instance in the same region, but in a different zone
• D.Create a failover replica instance in the same region, but in a different zone

Comment: *

Name: *

Email: *

Verification: *