Refer to the exhibit. ACME Mining has four data centers in Santiago, Cape Town, Mumbai, and Beijing, full-mesh connected via a 400 Mb/s EVP-LAN. They want to deploy a new mission-critical application with these requirements:
* cluster heartbeat 2 MB/s continuous (250 KB/s)
* cluster heartbeat one-way maximum latency 100 ms
These are the current ping tests results between the four data centers:
Which hosting data center pair can host the new application?
To meet the application's requirement of a one-way maximum latency of 100 ms, the data center pair must have a round-trip ping result of no more than 200 ms (because one-way latency is half of the round-trip time). The only data center pair that meets this requirement is Cape Town and Mumbai with a round-trip latency of 185 ms, which translates to one-way latency of 92.5 ms. All other pairs have round-trip latencies exceeding 200 ms.
Refer to the table. A customer investigates connectivity options for a DCI between two production data centers to aid a large-scale migration project. The solution must provide a single 10G connection between locations and be able to run its own varying QoS profiles without service provider interaction based on the migration stages. All connectivity methods are at 10 Gbps. Which transport technology costs the least if the connectivity is required for just one year?
The least costly transport technology that meets the requirement is CWDM over dark fiber. This technology allows the customer to manage its own QoS profiles without needing service provider interaction. The total cost for using CWDM over dark fiber for one year is $275,000, calculated as follows: $150,000 for CAPEX, $100,000 for OPEX, and $25,000 for the installation fee. Comparatively, DWDM over dark fiber ($380,000), MPLS wires only ($165,000), and Metro Ethernet ($150,000) either fail to meet all the requirements or are more expensive.
Refer to the table. A customer investigates connectivity options for a DCI between two production data centers. The solution must provide dual 10G connections between locations with no single points of failure for Day 1 operations. It must also include an option to scale for up to 20 resilient connections in the second year to accommodate isolated SAN over IP and isolated dedicated replication IP circuits. All connectivity methods are duplex 10 Gbps. Which transport technology costs the least over two years in this scenario?
To determine which transport technology costs the least over two years while meeting scaling requirements, we need to consider CAPEX, OPEX, installation fees, and scalability to support up to 20 resilient connections. DWDM (Dense Wavelength Division Multiplexing) supports a higher number of wavelength channels compared to CWDM (Coarse Wavelength Division Multiplexing). This makes DWDM more suitable for the requirement to scale up to 20 connections in the second year. Although the CAPEX and installation fees for DWDM are higher, the ability to scale without significant additional costs makes it the most cost-effective solution over two years.
What are two examples of business goals to be considered when a network design is built? (Choose two.)
When designing a network with business goals in mind, minimizing operational costs and standardizing resiliency are essential considerations. Minimized operational costs can lead to significant savings and improved financial performance, while standardized resiliency ensures that the network remains reliable and can quickly recover from disruptions, thereby maintaining business continuity. Reducing complexity, although beneficial, is generally a technical objective rather than a primary business goal.
Refer to the table. A customer investigates connectivity options for a DCI between two production data centers to aid a large-scale migration project. The migration is estimated to take 20 months to complete but might extend an additional 10 months if issues arise. All connectivity options meet the requirements to migrate workloads. Which transport technology provides the best ROI based on cost and flexibility?
To determine the best ROI based on cost and flexibility for a DCI between two production data centers, considering a migration project estimated to take 20 months but potentially extending to 30 months, we must closely analyze the cost structure. Metro Ethernet is the best choice given its relatively low CAPEX of $65,000, lower ongoing OPEX of $100,000 annually, and low installation fee of $5,000. Additionally, its 36-month term provides flexibility in case the project extends, making it the most cost-effective solution with the highest flexibility.