Medium1 markMultiple Choice
Subtask 2.1: Network TopologyHybrid ConnectivityCloud InterconnectNetworking
This question is part of a case study — click to read the full scenario(Case 06)

CASE STUDY: Dress4Win

Company Overview: Dress4Win is a web-based retail company that helps users organize their wardrobes.
Current Environment: Colocated data center. Tomcat app servers, Nginx web servers, MySQL databases, Redis caching. 100TB of image data on SAN.
Business Requirements: Migrate to cloud to handle seasonal spikes (Black Friday). Reduce CapEx. Enable rapid prototyping.
Executive Statements: CEO: 'Innovate faster, stop worrying about servers.' CFO: 'Move to OpEx. Ensure PCI-DSS compliance.' CTO: 'Modernize stack but migrate quickly first.'
Technical Requirements: Secure hybrid connectivity during migration. PCI-DSS compliance. Automated scaling. CI/CD for microservices.
Constraints: Migration must be completed before Q4 holiday season (6 months). Limited budget for refactoring during initial migration.

QUESTION:
Given the CTO's statement and the 6-month constraint, which migration strategy should you recommend for the initial phase?

GCP PCA · Question 07 · Network Topology

CASE STUDY: Dress4Win

Company Overview: Dress4Win is a web-based retail company that helps users organize their wardrobes.
Current Environment: Colocated data center. Tomcat app servers, Nginx web servers, MySQL databases, Redis caching. 100TB of image data on SAN.
Business Requirements: Migrate to cloud to handle seasonal spikes (Black Friday). Reduce CapEx. Enable rapid prototyping.
Executive Statements: CEO: 'Innovate faster, stop worrying about servers.' CFO: 'Move to OpEx. Ensure PCI-DSS compliance.' CTO: 'Modernize stack but migrate quickly first.'
Technical Requirements: Secure hybrid connectivity during migration. PCI-DSS compliance. Automated scaling. CI/CD for microservices.
Constraints: Migration must be completed before Q4 holiday season (6 months). Limited budget for refactoring during initial migration.

QUESTION:
How should you design the hybrid connectivity to securely transfer the 100TB of image data and maintain database replication during the migration?

Answer options:

A.

Use a single Cloud VPN tunnel over the public internet.

B.

Ship the data using Transfer Appliance and use public IPs for database replication.

C.

Provision a Dedicated Interconnect between the colocated data center and Google Cloud.

D.

Use VPC Peering to connect the on-premises network to Google Cloud.

How to approach this question

Evaluate the bandwidth and security requirements for transferring 100TB and replicating databases.

Full Answer

C.Provision a Dedicated Interconnect between the colocated data center and Google Cloud.✓ Correct
Dedicated Interconnect provides direct physical connections between an on-premises network and Google's network. It offers 10 Gbps or 100 Gbps capacity, which is necessary to move 100TB of data quickly and maintain reliable, secure database replication without traversing the public internet.

Common mistakes

Selecting Cloud VPN, underestimating the bandwidth required for 100TB of data and continuous replication.

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