Data Center II Final Questions & Answers

Design for modularity Design for simplicity Design for standards adherence Design for security - ANSWERSSelect one or more of the following as valid data center design principles: Familiarity with your company and products is not typically a requirement. - ANSWERSSelect a category from the list below that should not typically be included as requirements when evaluating external hosting providers? Availability Data Archiving and Retention Security - ANSWERSSelect one or more valid non-functional requirements of the Data Center: An adequate budget and an abundant pool of qualified employees - ANSWERSWhich of the following is not considered a data center project constraint? T/F: A company's Data Center should always be required to host any application irrespective of the technology upon which it is built. - ANSWERSFalse Which of the following is not typically a category for defining current Data Center Requirements? - ANSWERSPast requirements It is reasonable to have a requirement for a Data Center hosting provider around the area of Service Level Agreements and Objectives. - ANSWERSTrue Which of the following Data Center Tier levels according to the Uptime Institute meet all of the following criteria : 1. 2 simultaneously active distribution paths, 2. Continuous Cooling (Class A), and 3) is concurrently maintainable, fault tolerant, has N active capacity components to support IT load, and provides compartmentalization. - ANSWERSTier 4 Select one of the following as not an essential design criteria for the data center. - ANSWERSEquipment such as forklifts and pallet jacks Which of the following are not part of the TIA-942 scope for Data Centers? - ANSWERSLocal regulations Which of the following technologies are examples of recent trends in Data Centers? - ANSWERSAll the above According to the textbook in chapter 3, the Bahnhof Data Center in Sweden makes their customers secure about the physical security of the DC because it is built within a former nuclear bunker and is conveniently located centrally in Stockholm. - ANSWERSTrue Which of the following areas are examples where consolidation in the Data Center occurs? - ANSWERSAll of the answers are correct and have been a focus in consolidation efforts. Which one of the following is not a best practices design principle for the Data Center? - ANSWERSDesign for rigidity Which Data Center tier level below most correctly describes a Data Center with multiple active distribution paths? - ANSWERSTier 3 The component in the Data Center which typically consumes the most power proportionally is _________. - ANSWERSCooling is the most energy intensive component - consuming approximately 38% of the power. Which of the following metrics is derived by taking the IT equipment power divided by total facility power? - ANSWERSDCIE Select the following area(s) that are valid forms of network virtualization in the Data Center. - ANSWERSVirtual LAN (VLAN) Virtual Private Network (VPN) Out-of-band Network T/F: The value of an efficiency metric in a Data Center should not vary during the course of a day or week. - ANSWERSFalse T/F: Virtualization within the context of your Data Center and IT infrastructure is the introduction of an abstraction layer that enables logical resources to be consumed at a physical level. - ANSWERSFalse T/F: One should require as a best practice that cabling and electrical contractors provide as-builts of the DC room. - ANSWERSTrue Select one or more choices below for typical areas of Data Center documentation. - ANSWERSFloor plans and cabinet locations Electrical infrastructure Server details Application Design Documentation and Database Schema Details According to the textbook in chapter 4, The Barcelona Supercomputing Center was one of the first computer rooms becoming a hot computer room instead of a cold computer room - with no cold aisles anymore per se. - ANSWERStrue Select one or more choices of typical operating process areas that are documented in the Data Center. - ANSWERSAccess and change management policies Application unit testing guidelines Service Level Agreements (SLAS) Server installation guidelines and equipment moves Operational procedures Select one or more choices of what is typically included in a server inventory list. - ANSWERSAll the above T/F: As Data Centers remain relatively static in their configuration, it is not that important to update its documentation on an on-going basis. - ANSWERSFalse T/F: Operating procedures are needed to standardize operational aspects of installations, configurations, task management, backups and restores, and other Data Center activities. - ANSWERSTrue Which of the following choices is NOT typically included in an application inventory? - ANSWERSApplication end of life date T/F An accurate floor plan map shows physical clearances, cabinet locations, the placement of major infrastructure, and the numbering scheme. More detailed plans could also include cabling paths, electrical conduits, data ports, and electrical receptacles. - ANSWERStrue The axis selection is not a critical decision in a data center plan and has minimal impact on performance and economy. - ANSWERSFalse Select one or more of the following as valid common errors in equipment layout according to the course notes. - ANSWERSIgnoring support columns in advance Adding partitions without studying the effect on equipment layout Failure to plan the entire layout in advance According to the textbook in chapter 5, the uniqueness of the Calcul Quebec data center is its arrangement of hardware in a circular space- with hot area being blown down and cold air circular upward in a single hot aisle and cold aisle. - ANSWERStrue In the data floor planning process, there are room dimensions for data centers based upon the pitch chosen. - ANSWERSTrue It is important to identify rows in the DC floor plan in order to align the floor grid for raised floor with a ceiling grid for a suspended ceiling. - ANSWERSTrue For situations where columns are unavoidable in the DC, but boundaries are flexible, the floor plan should be laid out as if no columns existed - based on the standardized dimensions of the room and the pitches required. Columns should then be located directly over any one particular rack location, preferably at a row end. - ANSWERStrue The _______ of a data center row layout is the distance from one mid-cold-aisle to the next-cold-aisle. - ANSWERSpitch Select one or more of the following as valid principles of equipment layout according to course notes and APC White Paper #144. - ANSWERSControlling airflow using a hot-aisle/cold-aisle layout is commonly used.. Provide safe and convenient access ways Plan complete equipment layout in advance as much as possible Align floor or ceiling tile systems with equipment _____ is the rapid discharge of static electricity between bodies at different electrical potentials and can damage electronic components. - ANSWERSESD The most widespread use these days is Power Usage Effectiveness (PUE), which gauges the electrical efficiency of a server environment by focusing on its electrical overhead. Select the correct choice below for the formula for computing PUE. - ANSWERSPUE = Total Facility Power / IT Equipment Power When calculating the air flow needs of a data center for under floor cooling, which of the following should have higher air pressure? - ANSWERSSubfloor A "power sag" or "brownout" can be prevented by using _______ Technology. - ANSWERSPower conditioning The UPS (Uninterruptible Power Supply) should be continually online, even when there is no failure in the power grid. - ANSWERStrue To maintain the integrity of the supply air plenum, poor fitting files and perimeter penetrations should be avoided. - ANSWERStrue Cooling is the component in the Data Center which typically consumes the most power proportionally. - ANSWERStrue According to the textbook in chapter 6, the Cisco data center in Allen, Texas uses an active-passive mirror with a link to a second data center 15 miles away - requiring manual failover to one another in a matter of hours. - ANSWERSfalse Excessive humidity in the air increases the _____ potential of gases and should be avoided in the data center environment. - ANSWERScorrosive As computing and memory requirements have grown over time, this has resulted in more generated heat. However, the power requirements have actually decreased proportionally. - ANSWERSFalse Select one or more of the following items that are valid cleaning materials and equipment. - ANSWERSVacuums equipped with HEPA filters Canned air Lint-free mops, anti-static wipes and towels Which of the following devices require preventative maintenance during their life cycle? - ANSWERSPDUs Raised Floors Humidifiers Fire Alarm Systems The strategic or best practices approach to preventative maintenance is to have multiple management systems, each addressing its own component type. - ANSWERSFalse Select one or more of the following as valid preventative maintenance techniques considered non-invasive. - ANSWERSGeneral appearance examination Roof penetrations