Chapter 9: Disaster Recovery Flashcards
Understand Disaster Recovery (DR)
{Blank} is a subset of business continuity activities designed to restore a business to normal operations as quickly as possible following a disruption.
Disaster Recovery (DR)
{Blank} may include immediate measures that get operations working again temporarily, but the disaster recovery efforts are not finished until the organization is completely back to normal.
Disaster Recovery Plans (DRPs)
What are the differemt types of disasters?
- Environmental natural disaster (ex. hurricane)
- Technological failure (ex. power outage)
- Health emergency (ex. pandemic)
- Hazard caused by humans (ex. ransomware attack)
Once a disaster recovery plan is activated, the {blank} folowing an emergency disruption is designed to contain the damage to the organization and recover whatever capacity may be immediately restored.
Initial Response
After the immediate danger to the organization clears, the disaster recovery team shifts from intial response mode to {blank} mode. The goal of this phase is to triage the damage to the organization and implement funtional recovery plans to recover operations on a continuous basis.
assessment
What are the three metrics used to help an organization plan disater recovery efforts?
- Recovery Time Objective (RTO)
- Recovery Point Objective (RPO)
- Recovery Service Level (RSL)
The {blank} is the targeted amount of time that it will take to restore a service to operation following a disruption.
Recovery Time Objective (RTO)
The {blank} is the maximum time period from which data may be lost as a result of a disaster.
Recovery Point Objective (RPO)
The {blank} is the percentage of a service that muct be available during a disaster.
Recovery Serice Level (RSL)
What are three ways to backup media?
- Tape Backups
- Disk Backups
- Cloud Backups
What are the three primary backup types?
- Full
- Differential
- Incremental
{Blank} include everything on the media being backed up. They make a complete copy of the data.
Full backups
{Blank} are a form of full backup created using specialized functionality of the hardware platform.
Snapshots
{Blank} supplement full backups and create a copy of only the data that has changed since the last full backup.
Differntial backups
{Blank} are similiar to differntial backups, but with a small twist: They include only those files that have changed since the most recent full or incremental backup.
Incremental backups
What are the three main types of alternate processing facilities (Disaster Recovery Sites)?
- Hot sites
- Cold sites
- Warm sites
{Blank} are the premier form of alternate processing facility. They are fully operational data centers that have all of the equipement and data required to handle operations ready to run.
Hot sites
{Blank} arae facilities that can be used to restore operations eventually, but with a significant investment of time. They are essentially empty data centers. They have the core racks, cabling, network connections, and environmental controls necessary to support data center operations, but don’t have the servers or data required to restore business operations.
These are less expensive than hot sites, but activating this can take weeks or even months.
Cold sites
{Blank} have the hardware and software necessary to support the company’s operations, but thay are not kept running in a parallel fashion. The hardware costs are the same as a hot site, but much less investment of time from IT staff is required.
Activating it can take hours or days, depending on the circumstances.
Warm sites
What are two goals of testing a disaster recovery plan?
- To validate that the plan functions correctly and that the technology will worj in the event of a disaster.
- To provide an opportunity to identify necessart updates to the plan due to technology or business process changes.
What are the five major types of disaster recovery test?
- Read-Throughs
- Walk-Throughs
- Simulations
- Parallel Tests
- Full Interruption Tests
{Blank} are the simplest form of disaster recovery testing. They’re also known as checklist.
DR staff distribute copies of the current plan to all personnel involved in diaster recovery efferts and ask them to review their procedures. Team members the provide feedback about any updates needed to keep the plan current.
Read-Throughs
{Blank} involves getting everyone together around the same table to review the plan together. They are also know as a tabletop exercise. They achieve the same results as a read-though but are generally more effective because they give the team the opportunity to discuss the plan together.
Walk-Throughs
{Blank} are not just talking about a plan; they are discussing how they would respond in a specific scenario. The test planners design a simulation of an emergency situation and then the disaster recovery team describes how they would react.
Simulations
{Blank} actually activates the DR plan, including activating an alternate cloud or physical operating environment in response to simulated disaster. A company doesn’t actually switch operations to the backup environment, but the DR environment runs in parallel with the primary site.
Parallel Test
{Blank} is the most effective type of DR test; however, it is also the most disruptive to normal operations. The business simulates a disaster by actually shutting down the primary operating environment and attempting to operate out of the DR environment.
Full Interruption Test
Gene recently conducted an assessment and determined that his organization can be without its main transaction databases for a maximum of 2 hours before unacceptable damage occurs to the business. Therefore, the goal of his organization is to restore service within 2 hours. Which metric has Gene identified?
A. RSL
B. RTO
C. RPO
D. MTTR
RTO
Which type of recovery site has some or most systems in place but does not have the data needed to take over operations?
A. Hot site
B. Warm site
C. Cloud site
D. Cold site
Warm site
