CLF-C01 Free Practice Test

What best describes the concept of fault tolerance?
Choose the Correct Answer

1. A. The ability for a system to withstand a certain amount of failure and still remain functional.
2. B. The ability for a system to grow and shrink based on demand.
3. C. The ability for a system to grow in size, capacity, and/or scope.
4. D. The ability for a system be accessible when you attempt to access i

Correct Answer: A
Fault tolerance describes the concept of a system (in our case a web application) to have failure in some of its components and still remain accessible (highly available). Fault tolerant web applications will have at least two web servers (in case one fails).

Children's All Saints Hospital has millions of old medical records that they must save for regulatory reasons. These records will most likely never be accessed again. What is the best and most costeffective S3 storage option that will meet the hospitals needs?
Choose the Correct Answer

1. A. Standard
2. B. Infrequent Access
3. C. Glacier
4. D. Reduced Redundacy

Correct Answer: C
Glacer is specifically designed for long-term archival storage. It is extremely inexpensive and should only be used for items that you access very infrequently.

Before moving and/or storing object in AWS Glacier, what considerations should you make regarding the data you want to store.
Choose the Correct Answer

1. A. Make sure the data is properly formatted for storage Glacier.
2. B. Make sure the total amount of data you want to store in under 1 terabyte in size.
3. C. Make sure you are ok with it taking at minimum a few minutes to retrieve the data once stored in Glacier.
4. D. None of the abov

Correct Answer: C
Objects stored in Glacier take time to retrieve. You can pay for expedited retrieval, which will take several minutes - OR wait several hours (for normal retrieval).

What best describes what AWS is?
Choose the Correct Answer

1. A. AWS is an online retailer
2. B. AWS is the cloud.
3. C. AWS is a cloud services provider.
4. D. None of the abov

Correct Answer: C

What is AWS's serverless compute service?
Choose the Correct Answer

1. A. S3
2. B. Lambda
3. C. EC2
4. D. None of the above

Correct Answer: B
AWS has two main compute services, EC2 (server-based) and Lambda (serverless).