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Glossary

Cloud Computing Glossary

Your comprehensive guide to cloud infrastructure, DevOps, and platform engineering terminology.

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Security Group

A security group is a set of firewall rules that controls which network traffic can reach or leave your cloud resources. It permits or denies connections based on protocol, port, and IP address.

Networking
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Service Level Agreement

A Service Level Agreement (SLA) is a contractual commitment between a cloud provider and customer that guarantees specific service availability, typically expressed as an uptime percentage such as 99.9% or 99.99%, with remedies like service credits if the provider fails to meet those commitments.

Infrastructure
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Snapshot

A snapshot is a point-in-time copy of a volume or instance state that captures all data as it existed at the moment of creation, enabling backup, recovery, and cloning operations.

Storage
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SSH Key Pairs

An SSH key pair is a set of two cryptographic files (a public key and a private key) used to authenticate your identity when connecting to remote servers without typing a password.

Security
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Subnet

A subnet is a logical subdivision of an IP network within a cloud environment that partitions a larger network into smaller, manageable segments for grouping and isolating resources.

Networking
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Swift

Swift is the OpenStack object storage service that stores and retrieves unstructured data such as files, images, backups, and media using HTTP APIs.

Storage
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