This CAS-004 practice question tests your understanding of scripting, containers and automation. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which two of the following are best practices for securing container orchestration platforms (e.g., Kubernetes)? (Select two.)
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Use privileged containers for system services.
Why wrong: Privileged containers should be avoided as they have nearly unrestricted access to the host.
Disable all security contexts to avoid restrictions.
Why wrong: Security contexts enforce necessary restrictions; disabling them weakens security.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Apply network policies to isolate workloads.
Network policies in Kubernetes act as a firewall for pods, controlling ingress and egress traffic at the IP address or port level (OSI layer 3 or 4). By default, all pods can communicate with each other; applying network policies enforces least-privilege segmentation, which is a core security best practice for container orchestration platforms.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Use privileged containers for system services.
Why it's wrong here
Privileged containers should be avoided as they have nearly unrestricted access to the host.
Disable all security contexts to avoid restrictions.
Why it's wrong here
Security contexts enforce necessary restrictions; disabling them weakens security.
Option-by-option analysis
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The CAS-004 exam frequently reuses these exact scenarios with slightly different constraints.
Why this is wrong here
Privileged containers should be avoided as they have nearly unrestricted access to the host.
Why this is wrong here
Security contexts enforce necessary restrictions; disabling them weakens security.
Analysis generated from the official CAS-004blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Common exam traps
Cisco often tests the misconception that privileged containers are necessary for system services, when in fact they should be avoided and replaced with specific capability grants (e.g., CAP_NET_ADMIN) or security context constraints.
Detailed technical explanation
Kubernetes network policies are implemented by a CNI plugin (e.g., Calico, Cilium) that programs iptables or eBPF rules on each node. RBAC (Role-Based Access Control) in Kubernetes uses the RBAC API (rbac.authorization.k8s.io/v1) to bind roles or cluster roles to users, groups, or service accounts, controlling access to API resources like pods, secrets, and deployments. A real-world scenario: without RBAC, a compromised service account token could allow an attacker to create privileged pods or exfiltrate secrets across the entire cluster.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A junior network technician can log in to a core router but cannot reach the enable prompt or configuration mode. The AAA server is authenticating the login — but the authorisation policy only grants privilege level 1, not 15. Authentication (who you are) is working; authorisation (what you can do) is not.
What to study next
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FAQ
Scripting, Containers and Automation — This question tests Scripting, Containers and Automation — Read the scenario before looking for a memorised answer..
The correct answer is: Apply network policies to isolate workloads. — Network policies in Kubernetes act as a firewall for pods, controlling ingress and egress traffic at the IP address or port level (OSI layer 3 or 4). By default, all pods can communicate with each other; applying network policies enforces least-privilege segmentation, which is a core security best practice for container orchestration platforms.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jun 11, 2026
This CAS-004 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CAS-004 exam.
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