CH28 Planning for the Worst Flashcards
You are configuring a RAID drive for a Media Streaming Server. Your primary concern is speed of delivery of the data. This server has two hard disks installed.
What type of RAID should you install, and what type of data will be stored on Disk 1 and Disk 2?
a. RAID 0 - Disk 1 (Stripe) and Disk 2 (Stripe)
b. RAID 0 - Disk 1 (Mirror) and Disk 2 (Mirror)
c. RAID 1 - Disk 1 (Stripe) and Disk 2 (Stripe)
d. RAID 1 - Disk 1 (Mirror) and Disk 2 (Mirror)
a. RAID 0 - Disk 1 (Stripe) and Disk 2 (Stripe)
Since this is a Media Streaming Server, you should implement a RAID 0 which provides disk stripping across both drives. This will increase the speed of the data delivery, but provides no redundancy.
If you were concerned with redundancy, then you should choose a RAID 1 which uses a mirror of the data on both hard disks.
You cannot use a RAID 5, since this requires a minimum of 3 disk drives and stripes the data across the hard disks.
You also can not use a RAID 6 since this requires at least 4 hard disks with dual parity and disk stripping.
Dion Training has performed an assessment as part of their disaster recovery planning. The assessment found that the organization’s RAID takes, on average, about 8 hours to repair when two drives within the RAID fail. Which of the following metrics would best represent this time period?
a. RTO
b. RPO
c. MTTR
d. MTBF
c. MTTR
Mean time to repair (MTTR) is a basic measure of the maintainability of repairable items. It represents the average time required to repair a failed component or device.
Karen lives in an area that is prone to hurricanes and other extreme weather conditions. She asks you to recommend an electrical conditioning device that will prevent her files from being corrupted if the power to the building is unstable or lost. Additionally, she would like the computer to maintain power for up to an hour of uptime to allow for a graceful shutdown of her programs and computer. Which of the following should you recommend?
a. Surge Protector
b. Power distribution unit
c. Uninterruptible power supply
d. Line conditioner
c. Uninterruptible power supply
An uninterruptible power supply or uninterruptible power source (UPS) is an electrical apparatus that provides emergency power to a load when the input power source becomes too low, or the main power fails. A UPS provides near-instantaneous protection from input power interruptions by using a battery backup. The on-battery run-time of most uninterruptible power sources is usually short (less than 60 minutes) but sufficient to properly shut down a computer system.
Karen lives in an area that is prone to hurricanes and other extreme weather conditions. She asks you to recommend an electrical conditioning device that will prevent her files from being corrupted if the building’s power is unstable or lost. Additionally, she would like the computer to maintain power for up to an hour of uptime to allow for a graceful shutdown of her programs and computer. Which of the following should you recommend?
a. Surge protector
b. Uninterruptible power supply
c. Line conditioner
d. Power distribution unit
b. Uninterruptible power supply
OBJ-2.5: An uninterruptible power supply or uninterruptible power source (UPS) is an electrical apparatus that provides emergency power to a load when the input power source becomes too low or the main power fails. A UPS provides near-instantaneous protection from input power interruptions by using a battery backup. The on-battery run-time of most uninterruptible power sources is usually short (less than 60 minutes) but sufficient to properly shut down a computer system. A line conditioner is a device that adjusts voltages in under-voltage and overvoltage conditions to maintain a 120 V output. Line conditioners raise a sag or under-voltage event back to normal levels, but they cannot protect the line from a complete power failure or power outage. A surge protector defends against possible voltage spikes that could damage your electronics, appliances, or equipment. A power strip will not protect against voltage spikes. A UPS or line conditioner could protect against voltage spikes, but they cost much more than a surge protector. A power distribution unit (PDU) is a device designed to provide power to devices that require power, and may or may not support remote monitoring and access.
You are attempting to prioritize your vulnerability scans based on the data’s criticality. This will be determined by the asset value of the data contained in each system. Which of the following would be the most appropriate metric to use in this prioritization?
a. The depreciated hardware cost of the system
b. The cost of acquisition of the system
c. The cost of hardware replacement of the system
d. The type of data processed by the system
d. The type of data processed by the system
OBJ-5.4: The data’s asset value is a metric or classification that an organization places on data stored, processed, and transmitted by an asset. Different data types, such as regulated data, intellectual property, and personally identifiable information, can determine its value. The cost of acquisition, cost of hardware replacement, and depreciated costs refer to the financial value of the hardware or system itself. This can be significantly different from the value of the information and data that the system stores and processes.
