Management

/ˈskɛdʒʊlər/

noun — "decides which task runs when."

/kjuːˌoʊˈɛs/

noun — "the traffic cop that keeps networks running smoothly."

QoS, short for Quality of Service, is a network management mechanism that prioritizes certain types of traffic to ensure reliable performance, low latency, and minimal packet loss. It is widely used in IP networks, VoIP, streaming, and enterprise networks to guarantee bandwidth and service levels for critical applications while controlling congestion.

/pɪp/

n. "Python's standard package installer for fetching, resolving, and deploying modules from PyPI and beyond."

/ɛn piː ɛm/

n. “JavaScript's default package manager and registry for discovering, installing, and managing Node.js dependencies through a vast ecosystem of reusable modules.”

/ˌɛm viː siː ˈsiː/

n. — "Database sorcery keeping readers blissfully ignorant of writers' mayhem."

MVCC (Multi-Version Concurrency Control) stores multiple temporal versions of each database row, letting readers grab consistent snapshots without blocking writers—who append fresh versions instead of overwriting. Unlike 2PL locking wars, transactions see "their" reality via timestamps/transaction IDs, with garbage collection culling ancient corpses once safe.

Key characteristics and concepts include:

/kuːtʃ diː biː/

n. — "JSON document store obsessed with offline replication sync."

CouchDB is Apache's Erlang-built NoSQL document database storing JSON-like documents with built-in bi-directional replication and multi-version concurrency control (MVCC) for offline-first apps. Unlike MongoDB's master-slave replication, CouchDB treats all nodes equal—changes propagate via HTTP with automatic conflict resolution via revision vectors, using MapReduce views for querying and B-tree indexes for fast lookups.

/daɪˈnæmoʊ diː biː/

n. — "AWS serverless key-value firehose mocking MongoDB's document bloat."

/ˈmɒŋɡoʊ diː biː/

n. — "NoSQL dumpster storing JSON blobs without schema nagging."

MongoDB is document-oriented NoSQL database using BSON (Binary JSON) format to store schema-less collections of records, grouping related documents without rigid table schemas or foreign key joins. Unlike SQL RDBMS, MongoDB embeds related data within single documents or references via ObjectIDs, supporting ad-hoc queries, horizontal sharding across replica sets, and MapReduce aggregation pipelines.

/ˌɑːr-ɛs-oʊ-ˈpiː/

n. “The snapshot of what policies are actually applied.”

RSoP, short for Resultant Set of Policy, is a Microsoft Windows feature used to determine the effective policies applied to a user or computer in an Active Directory environment. It aggregates all GPOs affecting a target object, considering inheritance, filtering, and security settings, to provide a clear picture of the resulting configuration.

Key characteristics of RSoP include:

/ˌdʒiː-piː-ɛm-ˈsiː/

n. “The console for managing all your Group Policies.”

GPMC, short for Group Policy Management Console, is a Microsoft Windows administrative tool that provides a single interface for managing Group Policy Objects (GPOs) across an Active Directory environment. It streamlines the creation, editing, deployment, and troubleshooting of policies that control user and computer settings in a networked domain.

Key features of GPMC include: