Cloud Glossary: Letter Z

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Z

Zero-Day

A software vulnerability that is unknown to security vendors and has no available patch or fix.

Zero Downtime Deployment

A deployment strategy that updates applications without interrupting service availability to end users.

Zone

A geographical region or logical grouping within cloud infrastructure that provides isolation and redundancy.

Zsh (Z Shell)

An extended version of the Bourne shell with improved features for interactive use and scripting.

Zero Trust

A security model that requires verification of every user and device before granting access to systems.

Zone Redundancy

A deployment strategy that distributes resources across multiple availability zones for high availability.

Zombie Process

A process that has completed execution but still has an entry in the process table as a zombie.

Zookeeper

A centralized service for maintaining configuration information and providing distributed synchronization.

Zero Configuration

A set of technologies that automatically discover and configure network services without manual setup.

Zone Transfer

The process of copying DNS zone data from a primary DNS server to secondary DNS servers.

Zero-Knowledge Proof

A cryptographic method where one party can prove knowledge of information without revealing the information itself.

Zone Apex

The root domain name of a DNS zone, also known as the naked domain or bare domain.

ZFS (Zettabyte File System)

A combined file system and logical volume manager with features like data integrity verification and snapshots.

Zone ID

A unique identifier assigned to a specific availability zone or DNS zone within cloud infrastructure.

Zero-Copy

An optimization technique that eliminates unnecessary copying of data between memory locations.

Zonal Persistent Disk

A storage type that provides persistent, high-performance block storage within a single zone.

Zone-Aware Autoscaling

An autoscaling strategy that considers zone distribution when adding or removing instances.

Zonal Resource

A cloud resource that exists in a specific availability zone and cannot be moved to other zones.

Zero-Touch Provisioning

An automated process that configures network devices without manual intervention during deployment.

ZIP Deployment

A deployment method that packages application code and dependencies into a ZIP file for upload.

Zone Affinity

A scheduling preference that keeps related resources or workloads within the same availability zone.

Zone Delegation

The process of assigning responsibility for a DNS subdomain to another set of name servers.

Zone Health Check

A monitoring mechanism that verifies the operational status of resources within an availability zone.

ZIP Slip

A security vulnerability that allows attackers to write files outside of the intended directory during extraction.

Zone Balancing

A load distribution strategy that evenly spreads workloads across multiple availability zones.

ZeroMQ

A high-performance asynchronous messaging library used in distributed and concurrent applications.