Which policy must be applied to an ImageStream to automatically deploy the latest Docker image upon an update?
Anonymous Quiz
33%
RollingPolicy
34%
LatestOnly
12%
Automatic
21%
ImageChangePolicy
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DevOps_Shack_10_Docker_Projects_to_Master_Docker_1739206364.pdf
1.3 MB
#Docker
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Popular Redis Use Cases
1. Caching
The most common use case is to utilize Redis for caching. This helps protect the database layer from overloading. Redis offers fast lookup for cached data and can help improve application performance.
2. Session Store
We use Redis to share user session data among stateless servers. Redis provides a centralized place to store session dat and makes it easy to scale out servers.
3. Distributed lock
We use Redis distributed locks to grant mutually exclusive access to shared resources. This prevents race conditions in distributed systems. Redis locks are easy to implement and automatically expire.
4. Counter and Rate Limiter
We use Redis to track like counts, view counts etc on social media apps. Redis counters provide atomic increments/ decrements. We also use Redis to enforce rate limits on our API endpoints. This helps prevent abuse.
5. Leaderboard
Sorted sets make it easy to implement gaming leaderboards in Redis. We can add, update, or remove users from the leaderboard and query ranges efficiently.
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DevOps_Shack_Prometheus_and_Grafana_Errors_Solutions_1739417248.pdf
1.3 MB
#Prometheus
Prometheus and Grafana Errors & Solutions
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Prometheus and Grafana Errors & Solutions
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Which command is used to search for a package in the Ubuntu repositories?
Anonymous Quiz
77%
Use 'apt search package_name'
16%
Run 'findpkg package_name'
3%
Type 'searchpkg'
3%
Use 'pkgfinder'
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Forwarded from DevOps(Document Repository)
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Kubernetes_Networking_1739467692.pdf
2.9 MB
#Kubernetes
Introduction to Kubernetes networking
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Introduction to Kubernetes networking
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What is the purpose of the `FROM` instruction in a Dockerfile?
Anonymous Quiz
85%
It sets the base image for the container
8%
It defines environment variables
3%
It installs packages
4%
It sets the working directory
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DevOps(Document Repository)
Photo
Network Programming with Go.pdf
3.9 MB
#Book
#Go
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#Go
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Forward proxy Vs Reverse proxy
A forward proxy is a server that sits between user devices and the internet. A forward proxy is commonly used for:
- Protect clients
- Avoid browsing restrictions
- Block access to certain content
A reverse proxy is a server that accepts a request from the client, forwards the request to web servers, and returns the results to the client as if the proxy server had processed the request. A reverse proxy is good for:
- Protect servers
- Load balancing
- Cache static contents
- Encrypt and decrypt SSL communications
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How to change the priority of a swap file/partition to 10
Anonymous Quiz
56%
swapon -p 10 /path/to/swapfile
23%
We can't change the priority of swap partions
14%
swapping -P 10 /path/to/swapfile
8%
swapon +10 /path/to/swapfile
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Ansible_1739460293.pdf
5.5 MB
#Ansible
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Which are the notable application areas for Docker?
Anonymous Quiz
83%
Simplifying configuration, Code pipelines management, Debugging capabilities and Rapid deployment.
17%
Robust, Transparency, code illustrator and slow deployment
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A Quick Reference to Database Scaling
1. Indexing: Analyze query patterns and create optimal indexes
2. Materialized Views: Pre-compute and store complex query results
3. Denormalization: Simplify joins to boost query performance
4. Vertical Scaling: Upgrade server resources (CPU, RAM, storage)
5. Caching: Store frequent data in faster memory
6. Replication: Create database copies on replicas to scale reads
7. Sharding: Distribute data across servers for improved scalability
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How do you copy a file from one location to another in Ubuntu?
Anonymous Quiz
93%
Use 'cp source destination'
3%
Run 'copyfile source destination'
1%
Type 'duplicate source destination'
2%
Use 'filecopy source destination'
AWS_networking_fundamentals_1739735250.pdf
1.7 MB
#AWS
#Network
AWS networking fundamentals
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#Network
AWS networking fundamentals
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azure_1739851452.pdf
4.9 MB
#Azure
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Jenkins_Starter_Guide_Ebook_1739466978.pdf
2.8 MB
#Jenkins
Jenkins starter giude
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Jenkins starter giude
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Which command would you use to force a restart of all pods in a DeploymentConfig?
Anonymous Quiz
57%
oc restart dc <DeploymentConfig-name>
12%
oc redeploy <DeploymentConfig-name>
25%
oc rollout latest <DeploymentConfig-name>
7%
oc refresh dc <DeploymentConfig-name>
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