S7 - Operations & Reliability

Question 1

SRE

Answer 1

Site Reliability Engineering — apply software principles to maintain reliability and performance.

Question 2

SLI, SLO, SLA

Answer 2

SLI = metric; SLO = target; SLA = contract.

Question 3

error budget

Answer 3

The acceptable failure allowance within SLO before breaching SLA.

Question 4

Cloud Operations suite

Answer 4

Monitoring, Logging, Trace, Profiler, Debugger, Error Reporting.

Question 5

export logs for long-term compliance

Answer 5

Aggregated sinks exporting to BigQuery or Cloud Storage.

Question 6

backup and DR

Answer 6

Backup = data copy; DR = live standby system ready to take over.

Question 7

RTO and RPO

Answer 7

RTO = time to recover; RPO = data loss window.

Question 8

HA for VMs

Answer 8

Use Regional Managed Instance Groups with load balancing.

Question 9

HA for Cloud SQL

Answer 9

Enable high availability (dual-zone replicas).

Question 10

alerts trigger automation

Answer 10

Cloud Monitoring alert → Pub/Sub → Cloud Function → remediation.

Question 11

reduce toil

Answer 11

Automate repetitive ops tasks to increase reliability.

Question 12

visualize network performance issues

Answer 12

Network Intelligence Center or Monitoring dashboards.

Question 13

Blue-Green deployment

Answer 13

Two environments — switch traffic only after verifying the new version.

Question 14

rolling deployment

Answer 14

Gradually update instances with no downtime.

Question 15

Infrastructure as Code

Answer 15

To define infrastructure declaratively (Deployment Manager/Terraform).

Question 16

service analyzes CPU/memory performance

Answer 16

Cloud Profiler.

Question 17

service traces latency across distributed apps

Answer 17

Cloud Trace.

Question 18

Detect suspicious IAM activity

Answer 18

Event Threat Detection (SCC).

Question 19

Prevent overspend while maintaining uptime

Answer 19

Budget alerts + sustained/committed use discounts.

Question 20

Self-healing compute layer

Answer 20

Managed Instance Groups with health checks.