Cloud Interconnect for dedicated connections in GCP - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ Architecture

intermediate

Choosing the right Cloud Interconnect type for high availability

You want to connect your on-premises data center to Google Cloud with the highest availability. Which Cloud Interconnect setup should you choose?

A Use a VPN connection over the internet for backup only.

B Use two Dedicated Interconnect connections in different locations with VLAN attachments.

C Use a single Partner Interconnect connection with multiple VLAN attachments.

D Use a single Dedicated Interconnect connection with one VLAN attachment.

💡 Hint

Think about avoiding a single point of failure by using multiple physical connections.

Using two Dedicated Interconnect connections in different locations with VLAN attachments provides redundancy and high availability. A single connection or Partner Interconnect does not guarantee the same level of availability. VPN over internet is less reliable and usually used as backup.

❓ service_behavior

intermediate

Bandwidth capacity of a single Dedicated Interconnect link

What is the maximum bandwidth capacity of a single Google Cloud Dedicated Interconnect link?

A 100 Gbps

B 10 Gbps

C 1 Gbps

D 40 Gbps

💡 Hint

Consider the standard capacity for a single physical connection in Dedicated Interconnect.

A single Dedicated Interconnect link provides up to 100 Gbps bandwidth. To achieve higher bandwidth, multiple links can be aggregated.

❓ security

advanced

Securing data over Dedicated Interconnect

Which statement best describes the security of data transmitted over Google Cloud Dedicated Interconnect?

A Data is encrypted by default over Dedicated Interconnect.

B Google Cloud automatically applies TLS encryption on Dedicated Interconnect traffic.

C Data is not encrypted by default; encryption must be handled by the customer.

D Dedicated Interconnect uses IPsec tunnels to encrypt data.

💡 Hint

Think about the physical nature of Dedicated Interconnect and what Google Cloud provides by default.

Dedicated Interconnect provides a private physical connection but does not encrypt data by default. Customers must implement their own encryption if needed. TLS or IPsec are not applied automatically on this connection.

🧠 Conceptual

advanced

Understanding VLAN attachments in Dedicated Interconnect

What is the purpose of a VLAN attachment in a Google Cloud Dedicated Interconnect setup?

A It creates a logical connection to a Virtual Private Cloud (VPC) network over the physical interconnect.

B It encrypts the data passing through the Dedicated Interconnect.

C It monitors traffic for security threats on the interconnect.

D It provides internet access through the Dedicated Interconnect.

💡 Hint

Think about how physical connections are divided logically to connect to cloud networks.

A VLAN attachment is a logical interface that connects the physical Dedicated Interconnect to a specific VPC network, enabling private communication. It does not encrypt or monitor traffic, nor provide internet access.

✅ Best Practice

expert

Optimizing failover for Dedicated Interconnect connections

You have two Dedicated Interconnect connections in different locations for redundancy. What is the best practice to ensure automatic failover between them?

A Manually switch traffic to the backup connection when the primary fails.

B Disable one connection and enable it only when the other fails.

C Use static routes with equal priority on both connections.

D Configure BGP sessions on both connections with different priorities and use dynamic routing.

💡 Hint

Consider how routing protocols help manage multiple paths automatically.

Using BGP with different priorities allows automatic failover and traffic rerouting without manual intervention. Static routes or manual switching do not provide seamless failover. Disabling connections reduces availability.