Networking and storage on cloud Flashcards
(15 cards)
What ensures availability in the cloud?
Selecting multiple regions to save data
This allows for redundancy and improved access.
What factors should be considered when selecting cloud regions?
- Compliance with data governance and legal requirements
- Proximity to your customers
- Available services within a region
- Pricing
These factors help optimize performance and legal compliance.
How do cloud providers ensure data availability within the same region?
By building multiple data centers across the region
This allows for backup within multiple locations.
What is the purpose of a Content Delivery Network (CDN)?
To cache content at strategically placed physical nodes across global points of presence (PoPs)
This reduces load times and improves user experience.
What does a virtual network consist of?
- Private services not exposed to the internet
- Devices with public addresses
- NAT for internet connection to private devices
This setup allows for controlled access and security.
How can cloud services with only private addresses be accessed?
Through a VPN connection between the on-premises device and the virtual gateway
This enables secure access to private resources.
What is a direct fiber connection to a cloud provider used for?
To establish a dedicated, high-speed connection to the cloud services
This enhances performance and security.
What are network access control lists (ACLs) used for?
To control network traffic and manage access to resources
This is crucial for security in cloud environments.
What is the function of security groups in cloud networking?
To define firewall rules for controlling inbound and outbound traffic
This helps in securing virtual servers.
What is virtual storage?
Storage that is abstracted from physical hardware
This includes virtual hard disks, snapshots, and images.
What is object storage used for?
Storing large amounts of unstructured data like text or binary data
It is scalable and used for various applications including backups and media streaming.
How does a relational database store data?
In a way that relates it to other pieces of data using structured query language (SQL)
This ensures data is stored consistently and can be easily queried.
What is the primary characteristic of nonrelational databases?
They use structures other than rows and columns, such as key-value pairs
This allows for flexibility in data organization.
Fill in the blank: Nonrelational databases are also known as ______.
NoSQL databases
This term reflects their ability to handle various data structures.
What allows for the addition or removal of attributes in key-value databases?
The flexibility of item structures
This means not every item needs to have the same attributes.
