DCA Cheat Sheet 2026

The 30 highest-yield DCA facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. How do regulations differ from industry standards in DCA practice? → Regulations are legally binding; standards are typically voluntary guidelines
2. Why is written communication important in DCA practice? → It creates a permanent record, ensures clarity, and provides reference for future actions
3. Why is regular review important in DCA risk management? → Because conditions change and new risks emerge requiring updated assessments
4. What is multi-factor authentication (MFA) in DCA security? → A security method requiring two or more verification factors to gain access
5. How can John launch a container that utilizes the json-file log driver when he has configured his Docker daemon to use the syslog log driver by default? → By using “--log-driver json-file” along with docker run
6. Which of the following parameters would allow you to SSH into an active "nginx" Docker container? → docker exec -it nginx /bin/sh
7. Which command lists all nodes currently participating in a Docker Swarm? → docker node ls
8. What does running a container with the `--privileged` flag do? → Grants the container almost all Linux capabilities and access to host devices
9. What is trend analysis in DCA reporting? → Examining data over time to identify patterns, directions, and changes in performance
10. What is the default subnet used by Docker's default bridge network (docker0)? → 172.17.0.0/16
11. What is cash flow management in DCA practice? → Monitoring and optimizing the timing of money coming in and going out of an organization
12. Which command shows detailed information about a Docker network including its connected containers? → docker network inspect my-network
13. What command creates a user-defined bridge network named 'my-network'? → docker network create --driver bridge my-network
14. Why is documentation critical in DCA regulatory compliance? → It provides evidence of compliance and creates a defensible record of activities
15. Which of the subsequent patterns would prevent any Python byte-code files from being copied during the building of a Docker image? → **/*.pyc
16. Which Docker daemon flag enables mutual TLS authentication for secure client-to-daemon communication? → --tlsverify
17. What role does feedback play in DCA professional development? → It identifies strengths and areas for improvement, guiding professional growth
18. What is a budget variance analysis in DCA financial management? → Comparing actual spending against budgeted amounts to identify and explain differences
19. Which network driver assigns a MAC address and connects containers directly to the physical network? → macvlan
20. Why is data visualization important in DCA reporting? → It makes complex data patterns and relationships easier to understand and communicate
21. What is a dashboard in DCA data reporting? → A visual display of key metrics and data points for at-a-glance monitoring of performance
22. How can a running container on a Linux host be interpreted? → a process
23. What happens to containers connected to the 'none' network driver? → They have no network access
24. Which Linux feature does Docker use to filter the system calls a container can make to the kernel? → Seccomp
25. Which command updates the image of a running service named 'api' to use the tag '2.0'? → docker service update --image api:2.0 api
26. Which command deploys a stack named 'myapp' to a Swarm using 'docker-compose.yml'? → docker stack deploy -c docker-compose.yml myapp
27. Which of the commands can be used to view an IPv4 network's subnet? → docker network inspect
28. What is the principle of least privilege in DCA technology management? → Users should only have the minimum access rights necessary for their job functions
29. What lvm mode should a host in production use when using the devicemapper as a storage driver? → direct-lvm
30. What is the critical path in DCA project scheduling? → The longest sequence of dependent tasks determining the minimum project duration