Cisco (300-910-DEVOPS) Exam Questions And Answers page 4
Which Kubernetes object is used to create a ClusterIP or NodePort?
pod
deployment
loadbalancer
Automation and Orchestration
DevOps Toolchain
A developer has created a deployment that should launch a pod to run their database service. The pod should launch with a metadata name of Cisco-DB," and the developer has added it to the "Cisco" namespace in their deployment.
Which Kubernetes command confirms that the service is running and usable?
Which Kubernetes command confirms that the service is running and usable?
kubectl -n Cisco get services | grep Cisco-DB
kubectl -n Cisco get pods | grep Cisco-DB
kubectl get pods | grep Cisco-DB
kubectl -n Cisco get service | grep Cisco-DB
DevOps Principles and Practices
Automation and Orchestration
When DevOps practices are integrated into an existing organization, which two characteristics are positive indicators of DevOps maturity? (Choose two.)
mean time between success
mean time to recover
cone testing
change lead time
age of codebase
DevOps Principles and Practices
DevOps Toolchain
A DevOps engineer is supporting a containerized application with multiple components running across the Kubernetes cluster. Metrics from the container (CPU and memory) and application (requests per second and heap size) are being collected by Prometheus and displayed with Grafana. Users report transaction timeout problems with the application, but the metric graphs all look within normal levels.
Which type of failure would prevent the engineer from seeing the problem using the captured metrics?
Which type of failure would prevent the engineer from seeing the problem using the captured metrics?
Grafana has lost connectivity to Prometheus, which causes graphs to display only the cached data.
CPU and memory metrics from Kubernetes nodes are not accurate due to the way that containers share resources.
Some containers are crashing regularly and being restarted automatically by Kubernetes.
The metricbeat agent has crashed and is no longer sending new data to Prometheus, so the metrics are not updating.
Automation and Orchestration
DevOps Toolchain
Refer to the exhibit. What is the user doing with Drone in this automated test?
testing Alpine Linux versus Ubuntu Linux
testing a PostgreSQL DB against multiple architectures
testing only the amd64 architecture
testing PostgreSQL deployment in an Alpine Linux VM
Automation and Orchestration
Automation and Orchestration
Why Should a Docker Golden Image Be Updated Regularly?
Multiple Choice
What are two reasons a Docker golden image should be updated? (Choose two.)
when there is a change to a username or password in the Docker secrets
when the application has a new release
when a fix for a security vulnerability is released
when a change is needed to an environment variable in the Dockerfile
when the base image is nearing the end of life
Automation and Orchestration
Continuous Integration and Deployment
The E-commerce application is being monitored using AppDynamics. AppDynamics has noticed that the application response has degraded and has identified some thread contention that might be the cause of the delays.
Where in the interface does AppDynamics bring this to your attention?
Where in the interface does AppDynamics bring this to your attention?
Potential Issues section of an individual transaction
Transaction Score graph of a business transaction
Code Deadlock section of the Event List
Slow Calls and Errors tab of the application
Automation and Orchestration
DevOps Security
Configuration changes to the production network devices are performed by a CI/CD pipeline. The code repository and the CI tool are running on separate servers. Some configuration changes are pushed to the code repository, but the pipeline did not start.
Why did the pipeline fail to start?
Why did the pipeline fail to start?
The CI server was not configured as a Git remote for the repository.
The webhook call from the code repository did not reach the CI server.
Configuration changes must be sent to the pipeline, which then updates the repository.
The pipeline must be started manually after the code repository is updated.
DevOps Toolchain
Continuous Integration and Deployment
What is the concept and purpose of chaos engineering?
Single Choice
What is chaos engineering?
designing an application with fuzzy logic that makes it hard to predict
a product engineering approach that lacks a formal methodology
splitting a project between teams that do not communicate with each other
introducing problems into a system to study behavior and improve reliability
Automation and Orchestration
DevOps Concepts and Principles
FILL BLANK
Fill in the blanks to complete the statement.
When creating multiple containers, in order to allow communication with each other, you must create a __________ of type _________ .
Fill in the blanks to complete the statement.
When creating multiple containers, in order to allow communication with each other, you must create a __________ of type _________ .
Automation and Orchestration
DevOps Toolchain
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