Domain 3 Flashcards
What is the primary requirement for cloud functionality?
ISP connectivity
What provides immediate, battery-driven power for a short period of time?
UPS - uninterruptible power supplies
What’s the best option for providing backup power for a sustained period of time?
Generators
Redundant arrays of inexpensive disks (RAID) and redundant servers are examples of what kind of controls?
high-availability
What identifies sensitive information stored on endpoint systems or in transit over a network?
DLP systems
What is a duplicate of your system – including lines of communication and network devices – that can act as your business’s main operating system if your primary server goes down for any reason?
Redundant server
What creates a single usable data disk, where several physical disks are combined into an array for better speed and fault tolerance.
Redundant arrays of inexpensive disks (RAID)
What are the following key concepts for:
* Mirroring: copying data to more than one disk
* Striping: splitting data across more than one disk
* Error correction (fault tolerance): redundant data is stored to allow problems to be detected and possibly fixed
RAID
Is RAID a backup solution?
No
What is a network encryption protocol used to protect sensitive information?
TLS
Can TLS identify sensitive information?
No
T/F: The management plane of a cloud service provider’s datacenter should be reserved for use by the provider’s own engineers.
True
What does traffic on the management plane control?
Operation of the infrastructure
What’s a cost-effective way to track items in a facility?
RFID - Radio frequency identification technology
What type of site includes the basic capabilities required for datacenter operations, like space, power, HVAC, and communications?
Cold site, but it lacks hardware required to restore operations
What is the most simplistic type of disaster recovery site consisting of elements providing power, networking capability, and cooling
Cold site
What type of DR site has storage hardware such as tape or disk drives, servers, and switches but has to have data transported for use in recovery?
Warm site
What type of DR site is ideal but challenging to attain that is a fully functional backup site that already has important data mirrored to it?
Hot site
What is the maximum acceptable delay between the interruption of service and restoration of service. This determines an acceptable length of time for service downtime.
RTO - recovery time objective
What is the maximum acceptable amount of time since the last data recovery point. This determines what is considered an acceptable loss of data.
RPO - recovery point objective
Every region consists of multiple __________.
Availability zones
What DR strategy is when data is live, services are idle, and some resources are provisioned and scaled after event?
Pilot light
What DR strategy is always running, business critical, and scales AWS resources after event?
Warm standby
What DR strategy has real-time RPO and RTO, zero downtime, near zero data loss, and is for mission critical services?
Multi-site, active/active