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| Section | Objectives |
|---|---|
| Topic 1: Cloud Native Observability | - Monitoring and logging
|
| Topic 2: Cloud Native Architecture | - Microservices and distributed systems
|
| Topic 3: Cloud Native Application Delivery | - CI/CD and deployment strategies
|
| Topic 4: Kubernetes Fundamentals | - Core Kubernetes concepts
|
| Topic 5: Container Orchestration | - Container lifecycle and scheduling
|
| Topic 6: Cloud Security and Governance | - Security fundamentals in cloud native systems
|
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NEW QUESTION # 261
You are using a Kubernetes admission controller to enforce security policies. Which of the following admission controller configurations is MOST appropriate for preventing pods from running with the "-privileged" flag?
Answer: A
Explanation:
Option E is the most appropriate configuration for preventing pods from running with the '-privileged' flag. This configuration defines a ValidatingAdmissionPolicy named 'privileged-pod-policy' that specifically targets pod creation operations ('CREATE'). It checks the 'securityContext' field of the pod spec and ensures that the 'privileged' field is set to 'false". By enforcing this rule, the admission controller will block any attempt to create pods with the privileged" flag, enhancing the security of your Kubernetes cluster.
NEW QUESTION # 262
What is the core functionality of GitOps tools like Argo CD and Flux?
Answer: C
Explanation:
The defining capability of GitOps controllers such as Argo CD and Flux is continuous reconciliation: they compare the desired state stored in Git to the actual state in the cluster and then alert and/or correct drift, making D correct. In GitOps, Git becomes the single source of truth for declarative configuration (Kubernetes manifests, Helm charts, Kustomize overlays). The controller watches Git for changes and applies them, and it also watches the cluster for divergence.
This is more than "auditing human changes" (option A). GitOps does provide auditability because changes are made via commits and pull requests, but the core functionality is the reconciliation loop that keeps cluster state aligned with Git, including optional automated sync/remediation. Option B is not accurate because GitOps is not about tracking user Git commands; it's about reconciling desired state definitions. Option C (automatically creating pull requests for outdated dependencies) is a useful feature in some tooling ecosystems, but it is not the central defining behavior of GitOps controllers.
In Kubernetes delivery terms, this approach improves reliability: rollouts become repeatable, configuration drift is detected, and recovery is simpler (reapply known-good state from Git). It also supports separation of duties: platform teams can control policies and base layers, while app teams propose changes via PRs.
So the verified statement is: GitOps tools continuously reconcile Git desired state with cluster actual state-exactly option D.
________________________________________
NEW QUESTION # 263
What Linux namespace is shared by default by containers running within a Kubernetes Pod?
Answer: C
NEW QUESTION # 264
What is the purpose of the kube-proxy?
Answer: A
Explanation:
The correct answer is B: kube-proxy maintains network rules on nodes. kube-proxy is a node component that implements part of the Kubernetes Service abstraction. It watches the Kubernetes API for Service and EndpointSlice/Endpoints changes, and then programs the node's dataplane rules (commonly iptables or IPVS, depending on configuration) so that traffic sent to a Service virtual IP and port is correctly forwarded to one of the backing Pod endpoints.
This is how Kubernetes provides stable Service addresses even though Pod IPs are ephemeral. When Pods scale up/down or are replaced during a rollout, endpoints change; kube-proxy updates the node rules accordingly. From the perspective of a client, the Service name and ClusterIP remain stable, while the actual backend endpoints are load-distributed.
Option A is a tempting phrasing but incomplete: load distribution is an outcome of the forwarding rules, but kube-proxy's primary role is maintaining the network forwarding rules that make Services work. Option C is incorrect because internet connectivity depends on cluster networking, routing, NAT, and often CNI configuration-not kube-proxy's job description. Option D is incorrect because DNS is typically handled by CoreDNS; kube-proxy does not "maintain DNS rules." Operationally, kube-proxy failures often manifest as Service connectivity issues: Pod-to-Service traffic fails, ClusterIP routing breaks, NodePort behavior becomes inconsistent, or endpoints aren't updated correctly. Modern Kubernetes environments sometimes replace kube-proxy with eBPF-based dataplanes, but in the classic architecture the correct statement remains: kube-proxy runs on each node and maintains the rules needed for Service traffic steering.
NEW QUESTION # 265
What is the goal of load balancing?
Answer: C
NEW QUESTION # 266
......
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