Cloud Digital Leader Cheat Sheet
Google Cloud Digital Leader — Quick reference for the exam
CLI Commands
39gcloud auth loginTOPInteractive authentication with a Google account
gcloud auth application-default loginCredentials for local applications
gcloud config set project <id>TOPSets the active project
gcloud config set compute/region <region>Sets the default region
gcloud config listView active configuration
gcloud projects listTOPList accessible projects
gcloud auth listView authenticated accounts
Comparisons
5| Service | Type | OS management | Scaling | Billing |
|---|---|---|---|---|
| Compute Engine | IaaS — VMs | Customer | Manual/Managed Instance Groups | Per second |
| App Engine | PaaS | Automatic | Per instance-hour | |
| Cloud Run | Serverless containers | Automatic 0→∞ | Per request + CPU/mem | |
| Cloud Run functions | Serverless functions | Automatic 0→∞ | Per request + ms | |
| GKE (Kubernetes) | Orchestrated containers | Partial (nodes) | Automatic (HPA) | Compute Engine nodes |
Quick Reference
35Global infrastructure
Google Cloud has regions (multi-AZ) and zones (an individual datacenter)
A region has ≥3 zones; deploying multi-zone = high availability
Points of presence for CDN (Cloud CDN, Cloud Interconnect)
Google’s SDN that controls the VM network
Premium Network Tier: Google’s private network (lower latency). Standard: public internet.
Digital transformation
Rehost, Replatform, Repurchase, Refactor, Recommit, Retire, Retain
Rehost: move VMs unchanged (fastest migration, fewer cloud benefits)
Refactor: rewrite to take advantage of cloud-native services
AI/ML, data analytics, multicloud as business accelerators
Security and compliance
Google secures the infrastructure, the customer secures data and access
Identity and Access Management — who can do what on which resource
Grant only the permissions that are needed
Identity for applications and workloads (not humans)
Encryption key management; CMEK = customer-managed encryption keys
Security perimeters for sensitive data
WAF and DDoS protection
AI and ML on GCP
ML platform (since 2026 part of Gemini Enterprise Agent Platform)
Train models without ML expertise
Vision, Speech, Natural Language, Translation — no training required
Train ML models directly with SQL
Google’s generative AI model, available in Vertex AI
Fairness, Interpretability, Privacy, Security as pillars
Costs and governance
Billing isolation unit
Linked to projects, receives the charges
Notifications when spend exceeds defined thresholds
1-3 years, up to 55% (70% on memory-optimized)
Automatic discount for continuous monthly usage
Up to 91% discount, can be terminated in 30 s (formerly preemptible)
Detailed spend analysis
CDL exam tips
No deep technical knowledge required: focus on business value
No infrastructure to manage, pay per query
Run = containers, Functions = individual functions
Zone = a single datacenter. Region = multiple zones
GKE Multi-Cloud and Google Distributed Cloud (formerly Anthos): apps on GCP, on-premises, and other clouds
Google Cloud’s SIEM/SOAR (formerly Chronicle)
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