MongoDB Atlas Admin Associate flashcards
MongoDB Atlas Admin Associate · Build recall with a focused review session.
32 cards. Read the term and the definition here. The deck at the top of this page is optional.
- M10 dedicated tier
- M10 and higher Atlas tiers are dedicated clusters with isolated compute and storage; they support features such as continuous cloud backup and private endpoints.
- Three-node replica set
- By default Atlas creates a three-node replica set with one primary and two secondaries, distributed across three availability zones when the region supports them.
- Analytics nodes
- Analytics nodes are read-only replica set members used for reporting; they do not participate in elections and can be added to dedicated Atlas clusters.
- Storage autoscaling
- Atlas storage autoscaling increases cluster disk capacity when usage crosses a configured threshold, reducing disk-full risk; it is available on dedicated clusters.
- SCRAM-SHA-256
- SCRAM-SHA-256 is the default password authentication mechanism for Atlas database users; SCRAM-SHA-1 remains available for older drivers and tools.
- Database user roles
- Atlas database users are project-scoped and receive built-in roles such as read, readWrite, dbAdmin, clusterMonitor, or root, or custom roles with action-level privileges.
- Organization API keys
- Organization API keys authenticate Atlas Administration API calls and can manage multiple projects; project API keys are scoped to a single project.
- Encryption at rest
- Atlas encrypts data at rest using cloud provider key management, such as AWS KMS, Azure Key Vault, or Google Cloud KMS, with optional customer-managed keys.
- IP access list
- The Atlas IP access list allows client connections only from listed IP addresses or CIDR blocks; entries apply at the project level and can include 0.0.0.0/0.
- VPC peering
- VPC peering connects an Atlas VPC to a customer VPC using private IP addresses; CIDR ranges must not overlap, and routes and security groups must allow traffic.
- Private endpoint
- A private endpoint uses AWS PrivateLink, Azure Private Link, or Google Private Service Connect to reach an Atlas dedicated cluster without public internet exposure.
- SRV connection string
- A mongodb+srv connection string uses DNS SRV records to discover Atlas cluster hosts; it requires correct DNS resolution and is the default Atlas connection format.
- Query Targeting ratio
- Query Targeting is documents examined divided by documents returned; a high ratio indicates the query examines many documents to return few results and may need an index.
- Performance Advisor
- Atlas Performance Advisor analyzes slow queries and recommends indexes; it groups similar query shapes and shows the estimated improvement for each suggestion.
- Profiler levels
- MongoDB profiler levels are 0 off, 1 log operations slower than slowms, and 2 log all operations; Atlas Query Profiler surfaces recent slow operations.
- Replication lag alert
- A replication lag alert fires when secondary members fall behind the primary beyond a threshold; causes include network latency, write load, and secondary resource saturation.
- Continuous Cloud Backup
- Continuous Cloud Backup stores oplog-backed snapshots for dedicated Atlas clusters, enabling point-in-time recovery to a timestamp within the retention window.
- Point-in-time recovery
- Point-in-time recovery restores an Atlas cluster to a specific timestamp by replaying oplog data from a base snapshot within the backup retention window.
- Snapshot retention policy
- A backup snapshot retention policy defines how long hourly, daily, weekly, and monthly snapshots are kept; it determines the available restore points.
- mongodump archive
- mongodump creates a binary BSON backup; the --archive option writes a single archive file, and --gzip compresses it for transport or storage.
- Atlas Administration API
- The Atlas Administration API is a REST API at cloud.mongodb.com/api/atlas/v2; it uses HTTP Digest authentication with public and private API keys.
- Atlas CLI
- Atlas CLI is a command-line tool that wraps Atlas Administration API operations, such as creating clusters, database users, and backup snapshots.
- Terraform provider
- The MongoDB Atlas Terraform provider manages Atlas projects, clusters, database users, and IP access lists as infrastructure-as-code resources with declarative configuration.
- Kubernetes Operator
- The Atlas Kubernetes Operator manages Atlas resources through Kubernetes custom resources, reconciling declared cluster, user, and project specifications with Atlas.
- Live Migration service
- Atlas Live Migration pulls data from a source replica set or sharded cluster into Atlas while source writes continue, then requires a cutover to finish.
- mongomirror
- mongomirror is the tool behind Atlas live migration; it tails the source oplog to apply changes continuously until the migration cutover.
- mongosync
- mongosync performs cluster-to-cluster synchronization between MongoDB clusters, supporting continuous sync and cutover for supported source and destination versions.
- mongoexport format
- mongoexport writes collection data to JSON or CSV; mongoimport loads it back, but these tools do not preserve all BSON types or indexes.
- MongoServerSelectionError
- MongoServerSelectionError means the driver could not find a reachable server; common causes are DNS or SRV failure, IP access list blocks, TLS errors, or a paused cluster.
- Authentication failed error
- Authentication failed usually means a wrong username, password, authentication database, or mechanism; verify the user exists in the target Atlas project and authSource.
- not authorized error
- A not authorized error means the authenticated database user lacks a role for the requested action; check the user's built-in or custom roles and authSource.
- Failover test
- A failover test deliberately triggers a primary election to verify that applications reconnect through SRV discovery and that retryable writes handle transient errors.