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CompTIA A+220-1002 > Disaster Recovery > Flashcards

Flashcards in Disaster Recovery Deck (9)
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1
Q

Backup strategies

A
• Image level
 • Bare metal backup using images
 • Operating system volume snapshots
    or hypervisor snapshots
 • Recover the entire system at once
 • Make an exact copy somewhere else
• File level
 • Copy individual files to a backup
 • May not necessarily store all system files
 • May need to rebuild the OS and then
   perform a file restore
2
Q

Critical application backups

A
  • Application software
  • Often distributed across multiple servers
  • Application data
  • Databases, other data storage
  • Location of data
  • Local and cloud-based
  • All of these are needed when restoring
  • They all work together
3
Q

Backup testing

A
  • It’s not enough to perform the backup
  • You have to be able to restore
  • Disaster recovery testing
  • Simulate a disaster situation
  • Restore from backup
  • Confirm the restoration
  • Test the restored application and data
  • Perform periodic audits
  • Always have a good backup
4
Q

UPS

A
  • Uninterruptible Power Supply
  • Short-term backup power
  • Blackouts, brownouts, surges
  • UPS types
  • Offline/Standby UPS
  • Line-interactive UPS
  • On-line/Double-conversion UPS

• Features
• Auto shutdown, battery capacity, outlets,
phone line suppression

5
Q

Surge suppressor

A
  • Not all power is “clean”
  • Self-inflicted power spikes and noise
  • Storms, power grid changes

• Spikes are diverted to ground

  • Noise filters remove line noise
  • Decibel (Db) levels at a specified frequency
  • Higher Db is better
6
Q

Account recovery options

A

• Apps won’t work if users can’t login
• Your Windows Domain will most likely be
the foundation of your recovery efforts

  • Consider other authentication requirements
  • Multi-factor authentication validation
  • Additional authentication databases
  • RADIUS, TACACS
  • Another good reason for centralized administration
  • No local accounts
7
Q

Restoring data from an incremental backup requires

A

All copies of incremental backups made since the last full backup

Copy of the last full backup

8
Q

What is the function of archive bit?

A

Indicating whether a file has been modified since the last backup

9
Q

Which type of UPS provides the best power outage protection?

A

Online

Double-conversion