701-100 Free Practice Test

Which of the following statements describes the principal concept behind test driven development?

1. A. Tests may not be written by the same development team that wrote the tested code.
2. B. All tests are generated automatically from the tested source code.
3. C. Tests are written before the function / method is implemented.
4. D. The only acceptable reason to write a test is to prevent fixed bugs from occurring again.
5. E. Instead of testing software automatically, manual tests are performed and logged daily.

Correct Answer: C
Reference https://en.wikipedia.org/wiki/Test-driven_development

Given the following excerpt of a Dockerfile:
Run apt-get –y update && apt-get install –y fortunes && apt-get clean
Why are the multiple apt-get commands combined in one RUN statement instead of using multiple RUN statements?

1. A. To prevent the commands from running in parallel because Docker executes all RUN statements in their own container at the same time.
2. B. To ensure the execution order of the commands because Docker might evaluate the statements of a Dockerfile in any order.
3. C. To avoid the creation of unnecessary images because Docker creates a new image for each RUN statement.
4. D. To execute both commands in the same container instance and void Docker to reset the container to the original base image.
5. E. To execute the apt-get install command only if the apt-get update command was successful because Docker does not check the success of RUN statements.

Correct Answer: D

Which of the statements below are true about the volume created by the following command? (Choose two correct answers.)
docker run –v /data –ti debian

1. A. The new /data volume contains a copy of the complete container’s base image.
2. B. The volume containing the container’s rootfile system is retained until the /data volume is deleted.
3. C. The /data volume is discarded when the container terminates.
4. D. The /data volume can be attached to another Docker container.
5. E. If the command is run a second time, another volume for /data is create

Correct Answer: DE

Which of the following statements is true about load balancers?

1. A. Load balancers are a security risk because they obfuscate the origin of connections.
2. B. Load balancer help to improve the availability and scalability of a service.
3. C. Load balancers are a single point of failure because they cannot be deployed redundantly.
4. D. Load balancer require access to private keys in order to be able to forward HTTPS traffic.
5. E. Load balancers cannot use connection content, such as HTTP cookies, to route traffi

Correct Answer: B

Which of the following HTTP headers is a CORS header?

1. A. X-CORS-Access-Token:
2. B. Location:
3. C. Referer:
4. D. Authorization:
5. E. Access-Control-Allow-Origin

Correct Answer: E
Reference https://enable-cors.org/server_apache.html