Homework Help: Questions and Answers: A company wants to connect cloud applications to an Oracle database in its data center. Requirements are over 10 Gbps of data and a Service Level Agreement (SLA) of 99%. What best suits the requirements?
Step by Sep Answering:
To solve the problem of connecting cloud applications to an Oracle database in a data center with the specified requirements, we need to consider both the bandwidth (over 10 Gbps) and the Service Level Agreement (SLA) of 99%.
Here is a step-by-step approach to find the best solution:
Step 1: Understanding Requirements
- Bandwidth Requirement: Over 10 Gbps.
- SLA Requirement: 99% uptime or availability.
Step 2: Connectivity Options
There are several options for connecting cloud applications to a data center:
- Public Internet: Generally, not suitable due to potential variability in speed, latency, and reliability.
- VPN over Internet: More secure than a public internet connection, but still might not meet the bandwidth and SLA requirements.
- Dedicated Connections:
- Direct Connect: Offered by cloud providers like AWS Direct Connect, Azure ExpressRoute, and Google Cloud Interconnect.
- MPLS (Multiprotocol Label Switching): A high-performance telecommunications network.
- Dark Fiber: Leasing an unlit fiber optic cable and managing it yourself.
Step 3: Compare Options Against Requirements
1. Public Internet
- Bandwidth: Typically, does not meet 10 Gbps consistently.
- SLA: Variable and often lower than 99%.
- Conclusion: Not suitable.
2. VPN over Internet
- Bandwidth: Can be limited by the internet connection.
- SLA: Depends on the ISP; often not guaranteed to be 99%.
- Conclusion: Not suitable.
3. Dedicated Connections
a) Direct Connect (AWS Direct Connect, Azure ExpressRoute, Google Cloud Interconnect)
- Bandwidth: Can offer more than 10 Gbps.
- SLA: Typically offers high SLA (often 99.9% or higher).
- Conclusion: Suitable.
b) MPLS
- Bandwidth: Can support over 10 Gbps.
- SLA: High SLA, typically 99.9% or higher.
- Conclusion: Suitable.
c) Dark Fiber
- Bandwidth: Can support over 10 Gbps.
- SLA: High SLA but requires in-house management.
- Conclusion: Suitable but complex.
Step 4: Select the Best Option
Based on the requirements (over 10 Gbps and 99% SLA), the most straightforward and efficient solutions would be:
- Direct Connect (e.g., AWS Direct Connect, Azure ExpressRoute, Google Cloud Interconnect): These services are designed to provide dedicated, high-bandwidth connections between your data center and the cloud with high SLAs.
- MPLS: This is a reliable, high-performance option with guaranteed SLAs and can be customized to meet specific requirements.
Considering ease of setup, management, and meeting both the bandwidth and SLA requirements, Direct Connect services (such as AWS Direct Connect, Azure ExpressRoute, or Google Cloud Interconnect) are recommended. They provide the required bandwidth, high availability, and reliability with minimal complexity compared to setting up and managing MPLS or Dark Fiber solutions.
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