Machine types and families (E2, N2, C2) in GCP - Practice Problems & Coding Challenges

Challenge - 5 Problems

🧠 Conceptual

intermediate

Understanding the main difference between E2 and N2 machine families

Which statement best describes the key difference between E2 and N2 machine types in Google Cloud Platform?

A E2 machines use custom CPUs optimized for cost efficiency, while N2 machines use newer Intel or AMD processors for better performance.

B E2 machines are designed for high-performance computing with GPUs, while N2 machines are only for general workloads without GPUs.

C E2 machines support only fixed machine types, while N2 machines support only custom machine types.

D E2 machines are only available in specific regions, while N2 machines are available globally.

💡 Hint

Think about the CPU types and cost-performance trade-offs between these families.

E2 machine types use cost-optimized CPUs and are designed for general workloads with good price-performance balance. N2 machines use newer Intel or AMD processors offering better performance for more demanding workloads.

❓ Architecture

intermediate

Choosing the right machine family for a CPU-intensive workload

You have a CPU-intensive application that requires consistent high performance. Which machine family should you choose to optimize performance without GPUs?

A C2 family, because it is designed for cost savings on general workloads.

B E2 family, because it offers the best CPU performance for intensive workloads.

C N2 family, because it uses newer Intel or AMD processors optimized for performance.

D E2 family, because it supports the highest number of vCPUs per instance.

💡 Hint

Consider which family uses the latest processors for CPU-intensive tasks.

N2 machines use newer Intel or AMD processors that provide better CPU performance for demanding workloads compared to E2 or C2.

❓ service_behavior

advanced

Behavior of C2 machine family under burst CPU load

What happens when a C2 machine type instance experiences a sudden burst of CPU load beyond its baseline capacity?

A The instance automatically scales up to more vCPUs to handle the burst without performance degradation.

B The instance throttles CPU usage to stay within its allocated capacity, potentially reducing performance temporarily.

C The instance switches to a lower-cost CPU mode to save money during the burst.

D The instance shuts down automatically to prevent overheating.

💡 Hint

Think about how fixed CPU capacity machines handle sudden load spikes.

C2 machines have fixed CPU capacity and do not auto-scale. Under burst load, they throttle CPU usage to stay within limits, which can reduce performance temporarily.

❓ security

advanced

Security implications of using E2 vs N2 machine types

Which security feature is uniquely available or enhanced in N2 machine types compared to E2 in Google Cloud Platform?

A N2 machines support Confidential Computing with AMD SEV, which is not available on E2 machines.

B E2 machines have built-in hardware encryption, but N2 machines rely only on software encryption.

C E2 machines automatically isolate network traffic at the hardware level, unlike N2 machines.

D N2 machines support Shielded VMs with advanced firmware security features, while E2 machines do not.

💡 Hint

Consider which machine family supports Confidential Computing features.

N2 machines support Confidential Computing using AMD SEV technology, providing enhanced memory encryption. E2 machines do not support this feature.

✅ Best Practice

expert

Optimizing cost and performance with mixed machine families

You need to deploy a scalable web application with variable workloads. Which strategy best balances cost and performance using E2, N2, and C2 machine types?

A Use N2 machines exclusively to simplify management and maximize performance regardless of cost.

B Use E2 machines for CPU-intensive tasks, N2 machines for memory-intensive tasks, and C2 machines for GPU workloads.

C Use only C2 machines for all workloads because they offer the best cost savings and performance balance.

D Use E2 machines for baseline workloads to save cost, N2 machines for moderate traffic spikes, and C2 machines for short CPU-intensive batch jobs.

💡 Hint

Think about matching machine types to workload characteristics and cost efficiency.

E2 machines are cost-effective for steady baseline workloads. N2 machines handle moderate spikes with better performance. C2 machines are optimized for short, CPU-heavy tasks. Combining them balances cost and performance.