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Cloud Digital Leader Cloud Digital Leader cheat sheet

Every exam tip and key term from the free Cloud Digital Leader lessons, by domain. Use your browser's Print to save it as a PDF.

Domain 1: Digital transformation with Google Cloud (17%)

Exam tips

Key terms

Cloud computing
On-demand access to shared computing resources over a network, paid for by use.
Digital transformation
Using digital technology to change how an organization operates, serves customers and creates value.
On-demand self-service
Users provision resources themselves, when needed, without human interaction with the provider.
Measured service
Resource use is metered and reported, which enables pay-as-you-go billing.
Scalability
The ability to increase capacity to handle more load, by scaling up or out.
Elasticity
Automatically adding and removing resources as demand changes, so capacity follows load.
Agility
The ability to move quickly: provision, experiment and change direction with little delay or cost.
Reliability
The ability of a service to keep working correctly when components fail.
Capital expenditure (CapEx)
Up-front spending on long-lived assets that are depreciated over time.
Operating expenditure (OpEx)
Ongoing spending on services and running costs, expensed as it is used.
Total cost of ownership (TCO)
All direct and indirect costs of a system over its life, including facilities, power, staff and refresh.
Depreciation
Spreading the cost of an asset over its useful life for accounting.
On-premises
Infrastructure the organization runs in its own or leased facilities.
Private cloud
Cloud-style infrastructure dedicated to a single organization.
Hybrid cloud
A combination of on-premises or private cloud with a public cloud, working together.
Multicloud
Using services from two or more public cloud providers.
IaaS
Infrastructure as a service: virtual machines, storage and networks, with the customer managing the OS and above.
PaaS
Platform as a service: a managed runtime where the customer brings code and data.
SaaS
Software as a service: a complete application delivered over the internet.
Serverless
Services with no servers to manage, automatic scaling and pay-per-use billing.
Shared responsibility model
The division of security and operational duties between the cloud provider and the customer.
Shared fate
Google Cloud's approach of actively helping customers secure their part through defaults, tools and guidance.
Security of the cloud
The provider's duty: physical facilities, hardware, network and virtualization.
Security in the cloud
The customer's duty: data, identities, access and configuration.
Region
An independent geographic area containing multiple zones, such as us-central1.
Zone
An isolated deployment area within a region; a failure domain for zonal resources.
Point of presence (PoP)
An edge location where Google's network connects to other networks near users.
Multi-region
A large geographic area, such as US or EU, containing several regions, used by some storage and database services.
Bandwidth
The maximum amount of data that can be carried per second on a connection.
Latency
The delay for data to travel between two points, usually measured in milliseconds.
Cloud CDN
Google Cloud's content delivery network, which caches content at edge locations near users.
Cloud Interconnect
Private, high-bandwidth connectivity between an on-premises network and Google Cloud.
Vendor lock-in
Dependence on one provider that makes switching costly or difficult.
Open source
Software whose code is openly available to use, modify and share under a license.
Open standard
A publicly available specification that anyone can implement, such as SQL.
Portability
The ability to move applications and data between environments with little change.
Cloud center of excellence
A cross-functional team that sets cloud standards, builds shared foundations and helps other teams adopt the cloud.
Silo
A team or department that works in isolation from others, slowing hand-offs and decisions.
Change management
A structured approach to helping people and organizations adopt new ways of working.
Blameless culture
Reviewing failures to learn and improve systems rather than to punish individuals.

Domain 2: Exploring data transformation with Google Cloud (16%)

Exam tips

Key terms

Data-driven decision
A choice based on analysis of data rather than intuition or habit alone.
Data silo
Data held by one team or system that others cannot easily access or combine.
Data pipeline
The automated flow that moves data from sources through processing to where it is used.
Insight
An understanding gained from data that can guide an action.
Structured data
Data organized in a fixed schema of rows and columns, easily queried with SQL.
Semi-structured data
Data with tags or keys but a flexible schema, such as JSON or XML.
Unstructured data
Data with no predefined model, such as images, video, audio and free text.
Schema
The definition of the fields, types and relationships in a data set.
Database (OLTP)
A store optimized for many small, fast transactions that run an application.
Data warehouse (OLAP)
A store optimized for analytical queries over large amounts of structured, historical data.
Data lake
A repository of raw data of any type, stored in its original format for later processing.
Lakehouse
An approach combining data lake storage with warehouse-style management and SQL analytics.
Bucket
A container for objects in Cloud Storage, with a name, location and default storage class.
Storage class
A setting that trades storage price against access cost: Standard, Nearline, Coldline or Archive.
Minimum storage duration
The period you are billed for even if you delete an object earlier: 30, 90 and 365 days for Nearline, Coldline and Archive.
Object Lifecycle Management
Rules that automatically change the storage class of objects or delete them based on conditions such as age.
Relational database
A database that stores data in related tables and uses SQL and transactions.
Cloud SQL
Managed MySQL, PostgreSQL and SQL Server databases.
AlloyDB
A managed, high-performance PostgreSQL-compatible database.
Spanner
A horizontally scalable, strongly consistent relational database that can span regions.
NoSQL
Databases that use models other than relational tables, such as documents, key-value or wide columns.
Firestore
A serverless NoSQL document database with real-time updates and offline support for apps.
Bigtable
A wide-column NoSQL database for very large, low-latency, high-throughput workloads.
Row key
The single identifier used to store and retrieve rows in Bigtable, which determines how data is organized.
Data warehouse
A central store of cleaned, structured data optimized for analytical queries.
Serverless
No infrastructure to provision or manage; capacity is allocated automatically.
Columnar storage
Storing data by column, so queries read only the columns they need.
BigQuery sandbox
A no-cost way to try BigQuery within free monthly limits, without a billing account.
Pub/Sub
A global messaging service where publishers send messages to topics and subscribers receive them asynchronously.
Dataflow
A serverless service that runs Apache Beam pipelines for streaming and batch data processing.
Dataproc
A managed service for Apache Spark, Hadoop and related open source tools.
Streaming data
Data processed continuously as events arrive, rather than in scheduled batches.
Business intelligence (BI)
Tools and practices that turn data into reports and dashboards for decision making.
Semantic layer
A shared definition of business metrics and data relationships used by all reports.
LookML
Looker's modeling language for defining dimensions, measures and relationships.
Looker Studio
Google's free, self-service dashboard and reporting tool.
Database Migration Service
A managed service that migrates databases into Cloud SQL or AlloyDB with minimal downtime.
BigQuery Data Transfer Service
Scheduled, managed data loads into BigQuery from Google, SaaS and other sources.
Storage Transfer Service
Online transfers of object and file data into Cloud Storage from other clouds, HTTP or on-premises.
Transfer Appliance
A physical device shipped to a customer to move very large data sets offline into Google Cloud.
Data governance
Policies, roles and tools that keep data accurate, secure, discoverable and properly used.
Data lineage
A record of where data came from and how it was transformed.
Data catalog
An inventory of data assets with descriptions, owners and classifications so people can find them.
Column-level security
Restricting access to specific columns, such as sensitive fields, in a table.

Domain 3: Innovating with Google Cloud artificial intelligence (16%)

Exam tips

Key terms

Artificial intelligence (AI)
The field of building systems that perform tasks that normally need human intelligence.
Machine learning (ML)
A subset of AI where systems learn patterns from data instead of following hand-written rules.
Generative AI
AI that creates new content, such as text, images or code, from a prompt.
Foundation model
A large model trained on broad data that can be adapted to many tasks; LLMs are one kind.
Classification
Predicting which category an item belongs to, such as fraud or not fraud.
Forecasting
Predicting future numeric values, such as demand next month.
Anomaly detection
Finding data points that differ significantly from normal patterns.
Model drift
A drop in model accuracy over time as real-world data changes from the training data.
Training data
The examples a model learns from.
Representative data
Data that covers the full range of cases and groups the model will face in real use.
Bias (in ML)
Systematic errors in a model's output that unfairly favor or disadvantage certain groups.
Label
The correct answer attached to a training example in supervised learning.
Responsible AI
Designing and using AI so that it is fair, safe, private, explainable and accountable.
Fairness
Avoiding unjust differences in outcomes for different groups of people.
Explainability
The ability to describe why a model produced a given output.
Human in the loop
A design where a person reviews or approves AI outputs before important actions.
Pre-trained model
A model already trained by the provider that you can use immediately without your own training data.
OCR
Optical character recognition: extracting text from images of printed or handwritten documents.
Sentiment analysis
Determining whether text expresses a positive, negative or neutral opinion.
Entity extraction
Identifying names of people, places, organizations and other items in text.
BigQuery ML
A BigQuery feature for creating, training and using ML models with SQL.
CREATE MODEL
The SQL statement that defines and trains a model in BigQuery ML.
ML.PREDICT
The BigQuery ML function that applies a trained model to data to produce predictions.
Logistic regression
A model type that predicts the probability of a yes-or-no outcome.
Vertex AI
Google Cloud's unified platform for building, deploying and managing ML and generative AI.
AutoML
Training a custom model on your own data with little or no code; the service handles model design and tuning.
Custom training
Training with your own code and framework for full control over the model.
MLOps
Practices and tools for deploying, monitoring and maintaining ML models in production.
Build vs buy
Deciding whether to develop a solution in-house or use an existing product or service.
Customization
How much a model can be adapted to an organization's specific data and needs.
Time to value
How quickly an approach starts delivering business results.
Tuning
Adapting a pre-trained or foundation model with additional examples for a specific task.
Gemini
Google's family of multimodal foundation models.
Multimodal
Able to process more than one type of data, such as text, images and audio, together.
Vertex AI Model Garden
A catalog in Vertex AI for discovering, testing and deploying Google, partner and open models.
Prompt engineering
Designing inputs to a generative model to get more useful and reliable outputs.
Hallucination
A confident but incorrect or made-up output from a generative model.
Grounding
Connecting model outputs to trusted sources so responses are based on real information.
Retrieval-augmented generation (RAG)
Retrieving relevant content from a knowledge source and giving it to the model with the question.
AI agent
A system that uses a model to plan and take actions through tools to achieve a goal.
Accelerator
Specialized hardware, such as a GPU or TPU, that speeds up ML computation.
GPU
Graphics processing unit: a processor with many parallel cores, widely used for ML.
TPU
Tensor Processing Unit: Google's custom ASIC designed for machine learning workloads.
ASIC
Application-specific integrated circuit: a chip designed for one type of task.

Domain 4: Modernize infrastructure and applications with Google Cloud (17%)

Exam tips

Key terms

Modernization
Updating infrastructure and applications to use cloud capabilities such as managed services, containers and automation.
Technical debt
The future cost created by outdated technology or shortcuts that make change harder.
CI/CD
Continuous integration and continuous delivery: automating build, test and deployment of code.
Migration Center
A Google Cloud tool for discovering current infrastructure, assessing it and planning a migration.
Rehost (lift and shift)
Moving an application to the cloud without changing it, usually onto VMs.
Replatform (move and improve)
Making targeted changes, such as adopting a managed database, while migrating.
Refactor
Changing an application's code and architecture to be cloud native.
Retire
Decommissioning an application that is no longer needed instead of migrating it.
Compute Engine
Google Cloud's IaaS service for running virtual machines.
Machine type
The vCPU and memory configuration of a VM, predefined or custom.
Managed instance group (MIG)
A group of identical VMs created from a template with autoscaling, autohealing and rolling updates.
Instance template
A reusable definition of a VM's configuration used to create VMs in a MIG.
Google Cloud VMware Engine
A managed service running a native VMware environment in Google Cloud.
Bare Metal Solution
Dedicated physical servers near Google Cloud regions for specialized workloads such as Oracle databases.
Hypervisor
Software that creates and runs virtual machines on physical hardware.
Bare metal
A physical server used directly, without a virtualization layer shared with others.
Container
A lightweight package of an application and its dependencies that runs consistently in any environment.
Container image
A read-only, versioned template from which containers are started.
Artifact Registry
Google Cloud's service for storing and managing container images and other build artifacts.
Orchestration
Automated scheduling, scaling, networking and healing of many containers across machines.
Kubernetes
An open source system for automating deployment, scaling and management of containers.
GKE
Google Kubernetes Engine, Google Cloud's managed Kubernetes service.
Autopilot
A GKE mode where Google manages nodes and infrastructure and billing is based on pod resource requests.
Pod
The smallest deployable unit in Kubernetes, containing one or more containers.
Serverless
Running code without managing servers, with automatic scaling and pay-per-use pricing.
Cloud Run
A managed serverless platform for running containers that scales automatically, including to zero.
Cloud Run functions
Event-driven serverless functions that run in response to triggers such as HTTP requests or new files.
Scale to zero
Running no instances, and incurring no compute cost, when there is no traffic.
Compute spectrum
The range from IaaS VMs (most control) to serverless (least management).
Stateless
An application that stores no session data locally, so any instance can handle any request.
Operational overhead
The work needed to run, patch, scale and secure infrastructure.
Portability
The ability to run the same workload in different environments.
Monolith
An application built and deployed as a single unit.
Microservices
An architecture of small, independently deployable services that communicate through APIs.
Strangler pattern
Gradually replacing parts of a legacy system with new services until the old system can be retired.
Infrastructure as code
Defining and managing infrastructure through version-controlled configuration files.
API
Application programming interface: a defined way for software to request data or actions from other software.
API management
Securing, controlling, monitoring and publishing APIs as products.
Apigee
Google Cloud's API management platform.
Rate limiting
Restricting how many requests a consumer can make in a period to protect back-end systems.
GKE Enterprise
Google Cloud's platform for managing Kubernetes clusters across Google Cloud, on-premises, other clouds and edge (formerly Anthos).
Fleet
A logical group of Kubernetes clusters managed together.
Service mesh
A layer that manages secure communication, traffic and observability between services.
Policy as code
Defining configuration and security policies in version-controlled files applied automatically.

Domain 5: Trust and security with Google Cloud (17%)

Exam tips

Key terms

Confidentiality
Ensuring information is only accessible to authorized people.
Integrity
Ensuring information is accurate and not altered without authorization.
Availability
Ensuring systems and data are accessible when needed.
Compliance
Meeting the requirements of laws, regulations, standards and contracts.
Shared responsibility
The division of security duties between the cloud provider and the customer.
Shared fate
Google Cloud's approach of actively helping customers secure their workloads with defaults, tools and guidance.
Attack surface
All the points where an attacker could try to get into a system.
Identity perimeter
Treating identity and access checks, rather than the network edge, as the main security boundary.
Misconfiguration
An insecure setting, such as public access or overly broad permissions, often made by mistake.
Phishing
Deceptive messages designed to trick people into revealing credentials or running malware.
Ransomware
Malware that encrypts data and demands payment to restore access.
Compromised credentials
Passwords, keys or tokens obtained by an attacker and used to impersonate a legitimate user.
Zero trust
A model that grants no implicit trust based on network location and verifies every request.
BeyondCorp
Google's implementation of zero trust, allowing access based on user and device rather than network.
Defense in depth
Layering multiple independent security controls so one failure does not expose the system.
Identity-Aware Proxy (IAP)
A Google Cloud service that checks identity and context before granting access to applications and VMs.
Titan chip
A Google-designed security chip that verifies machines boot with trusted firmware and software.
Hardware root of trust
A trusted hardware component that verifies the integrity of the system from start-up.
Shielded VM
A Compute Engine VM with secure boot and integrity monitoring against boot-level tampering.
Defense at scale
Using the size of Google's network and security operations to detect and absorb attacks.
Encryption at rest
Encrypting stored data; on by default for all customer data in Google Cloud.
Encryption in transit
Encrypting data as it moves across networks, for example with TLS.
CMEK
Customer-managed encryption keys: keys the customer creates and controls in Cloud KMS.
Cloud KMS
Google Cloud's service for creating, managing, rotating and using cryptographic keys.
Principal
An identity that can be granted access, such as a user, group or service account.
Role
A collection of permissions that can be granted to a principal on a resource.
Least privilege
Granting only the permissions needed, on the narrowest scope, for only as long as needed.
Service account
An identity used by applications and workloads rather than people.
VPC firewall rules
Rules that allow or deny network traffic to and from resources in a VPC network.
Cloud Armor
Google Cloud's DDoS protection and web application firewall for applications behind external load balancers.
Web application firewall (WAF)
A filter that blocks common web attacks such as SQL injection and cross-site scripting.
VPC Service Controls
Service perimeters around Google Cloud services that reduce the risk of data exfiltration.
Security Command Center
Google Cloud's central platform for security posture, vulnerabilities, misconfigurations and threat detection.
Cloud Audit Logs
Logs recording administrative actions and data access in Google Cloud.
SIEM
Security information and event management: collecting and analyzing security logs to detect threats.
SOAR
Security orchestration, automation and response: automating investigation and response steps.
Data residency
The geographic location where data is stored and processed.
Data sovereignty
The principle that data is subject to the laws of the country where it is located, including control over who can access it.
Assured Workloads
A Google Cloud service that applies controls, such as data location and personnel access, for regulated workloads.
Resource locations constraint
An organization policy that restricts the locations where resources can be created.
Compliance Reports Manager
Google's portal for downloading certifications and third-party audit reports.
Access Transparency
Logs of actions Google personnel take on customer content, with justifications.
Access Approval
A feature that requires customer approval before Google personnel access customer content.
SOC 2 report
An independent audit report on a service provider's controls for security, availability, confidentiality and related criteria.

Domain 6: Scaling with Google Cloud operations (17%)

Exam tips

Key terms

FinOps
A practice that brings finance, technology and business together to manage cloud costs and maximize value.
Cost allocation
Assigning cloud costs to the teams, products or projects that incur them.
Rightsizing
Changing resources to the size that actually matches their workload.
Active Assist recommendations
Google Cloud suggestions, such as removing idle VMs or resizing machines, to reduce cost and improve security.
Organization node
The root of the resource hierarchy, representing the company.
Folder
A grouping of projects and other folders, often by department, team or environment.
Project
The basic unit for enabling services, billing, IAM and grouping resources; every resource belongs to one.
Project ID
A globally unique, permanent identifier for a project.
Policy inheritance
Policies set on a node apply to all descendants in the hierarchy.
IAM allow policy
A policy that grants roles to principals on a resource.
Organization policy
A constraint that restricts how resources can be configured, regardless of who acts.
Additive access
Effective permissions are the union of all grants at a resource and its ancestors.
Cloud Billing account
The account that pays for Google Cloud usage, linked to projects and a payment method.
Budget alert
A notification sent when actual or forecast spend reaches a threshold; it does not stop spending.
Quota
A limit on how much of a resource or API a project can use.
Label
A key-value pair attached to resources, used to organize and allocate costs.
Pay-as-you-go
Paying only for resources used, with no up-front commitment.
Sustained use discount
An automatic discount for certain Compute Engine resources that run for much of a month.
Committed use discount (CUD)
A lower price in exchange for a one- or three-year commitment to resources or spend.
Spot VM
A heavily discounted VM using spare capacity that Google can stop at any time.
DevOps
A culture and practices uniting development and operations to deliver changes quickly and reliably.
Site Reliability Engineering (SRE)
Google's approach to running reliable systems by applying software engineering to operations.
Toil
Manual, repetitive operational work that scales with the service and can be automated.
Blameless postmortem
An incident review that focuses on causes and fixes, not on blaming individuals.
SLI
Service level indicator: a measurement of service behavior, such as the percentage of successful requests.
SLO
Service level objective: an internal target for an SLI over a period of time.
SLA
Service level agreement: a contract with customers stating consequences if a service level is not met.
Error budget
The allowed unreliability under an SLO, equal to 100% minus the SLO.
High availability
Designing a system to keep running despite component failures, usually through redundancy.
Disaster recovery
Plans and systems for restoring service after a major failure.
RTO
Recovery time objective: the maximum acceptable downtime before service is restored.
RPO
Recovery point objective: the maximum acceptable data loss, measured in time.
Observability
The ability to understand a system's internal state from its metrics, logs and traces.
Cloud Monitoring
Collects metrics and provides dashboards, uptime checks and alerts.
Cloud Logging
Collects, stores, searches and routes log data.
Cloud Trace
Distributed tracing that shows how long each step of a request takes across services.
Customer Care
Google Cloud's support offering, with basic and paid plans.
Technical Account Manager (TAM)
A named Google adviser for Premium Support customers who knows their environment.
Case priority
The urgency level set on a support case, based on business impact.
Proactive support
Guidance such as architecture reviews and event planning offered before problems happen.
24/7 carbon-free energy
Matching every hour of electricity use with carbon-free sources on the same grid; Google's 2030 goal.
Carbon-free energy percentage (CFE%)
The share of a region's hourly electricity use that comes from carbon-free sources.
Carbon Footprint tool
A console tool that reports the estimated emissions of a customer's Google Cloud usage.
Low CO2 region
A region marked in the console as having low grid carbon intensity.
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