HP0-J67 · Question #140
Scenario 1: A large publicity-traded motion picture exhibitor that is a leader In digital and 3D cinema deployments orepates 233 theaters and more than 2,200 screens in small to mid-sized…
The correct answer is A. WAN latency C. data change rate. The scenario describes a company's current backup and disaster recovery strategy involving large data volumes and physical tape transport, highlighting factors relevant to data protection and potential network-based replication.
Question
Scenario 1:
A large publicity-traded motion picture exhibitor that is a leader In digital and 3D cinema deployments orepates 233 theaters and more than 2,200 screens in small to mid-sized communities in 35 states around United States. They rely on MS Exchange Server 2010 for email, MS SQL. Server 2010 for analyzing data about movies and theater-goers, and MS Excel 2010 for crunching numbers. The company runs nightly incremental backups and a full weekly backup that consists of close to 7TB of data which takes up 72 hours to complete. The quarterly backups add an additional 7 TB of data. Tapes are inventoried and transported from the main data center to the disaster recovery site 150 miles away. The process of transporting tape cartridges to and from the Disaster Recovery site requires hours of dally work. The company currently relies on an aging robotic tape library and a process that takes the nightly backup tapes of site every morning. Additionally, the company keeps an inventory, and if a restore is necessary,they have to retrieve the tapes from the DR site and transport them to the main data center site. They have a 7 year data retention plan, and the tapes are expensive and not always reliable. Given the company's current system, if a full weekly backup fails over a weekend, the re-run could take p to 10 hours, even if just one job failed. The company has deployed an virtualized server infra structure which runs VmWare VSphere 5 on HP Blade system c7000 enclosures and BL46Oc servers interconnected with HP virtual Connect Flex-10 10Gb Ethernet modules as well as several HP ProLiant DL380 servers. The company top four IT improvements goal are as follows:
- replacing the aging robotic tape library
- enabling replication of backed up data from the main data center to
the disaster recovery site (150 miles)
- retaining more backup data in smaller disk space
- increasing efficiency, reliability and ease of System administration.
Moreover the company's top thee business benefit goals are as follows:
- increased confidence in disaster recovery
- Minimal disruption by backup during regular business hours -improved
management of external audits. The company has asked that you create multiple solution proposals and prioritize one when you return for a presentation. Refer to the scenario. Which additional information do you require to validate the customer DR strategy? (Select two.)
Options
- AWAN latency
- Bdata structure
- Cdata change rate
- Dnumber of hosts
- Edistance between data centers
How the community answered
(64 responses)- A69% (44)
- B5% (3)
- D19% (12)
- E8% (5)
Why each option
The scenario describes a company's current backup and disaster recovery strategy involving large data volumes and physical tape transport, highlighting factors relevant to data protection and potential network-based replication.
WAN latency is a critical factor for any network-based replication solution between the main data center and the disaster recovery site, especially for synchronizing 7TB of data over 150 miles. High latency would significantly impact the RPO and the efficiency of real-time or near-real-time data replication.
Data structure defines how information is organized, but it is not a primary operational or network performance factor for disaster recovery, especially when considering network latency or data change volume.
The data change rate dictates the volume of data that needs to be backed up incrementally and protected, directly impacting the 7TB backup size and the 72-hour backup window mentioned. A high change rate necessitates more frequent or efficient data protection methods to maintain a low RPO.
The number of hosts is relevant for overall infrastructure planning but is not presented as a primary factor influencing the challenges of backing up 7TB of data or the inter-site connectivity for disaster recovery.
While the distance between data centers is specified as 150 miles and is relevant, WAN latency (A) specifically quantifies the network performance impact of that distance, which is a more direct technical factor for network-based disaster recovery solutions.
Concept tested: Data protection factors; network latency impact on DR
Source: https://learn.microsoft.com/en-us/azure/site-recovery/site-recovery-capacity-planner-for-vmware#network-bandwidth-considerations
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