Section 3.3 Demonstrate your acquired knowledge about Disaster Recovery(DR) Concepts. This will demonstrate your proficiency for section 3.3 of the Network+ 10-009 objectives. 1 / 25 A failed router took 90 minutes to replace. What metric does this reflect? MTBF MTTR RPO RTO 2 / 25 A financial firm needs zero data loss and sub-second recovery. Which configuration is best? Cold site + daily backups Warm site + manual sync Active-active hot sites with synchronous replication Active-passive with async restore 3 / 25 Which DR test provides the most assurance that failover systems work properly? Tabletop Full validation MIB polling Passive listening 4 / 25 During a tabletop exercise, participants: Discuss disaster scenarios in a simulated environment Perform live failover Deploy backup systems Update firmware 5 / 25 What role does MTTR play in disaster recovery planning? Measures risk level Sets maximum backup size Helps estimate time required for service restoration Determines replication method 6 / 25 A business has a 4-hour RTO. What does this mean? Systems must be back online within 4 hours No more than 4 hours of data can be lost Systems must be replaced every 4 hours Recovery may start after 4 hours 7 / 25 What scenario would most benefit from an active-passive setup? Real-time trading system Web server with nightly updates DNS round-robin configuration Simultaneous load balancing 8 / 25 What is the primary advantage of a hot site compared to a warm site? Faster recovery time Lower operational costs No equipment needed Requires manual reconfiguration 9 / 25 You have a service that must never lose more than 10 seconds of data. Which of the following best meets this requirement? Daily offsite backup Real-time replication to a hot site Weekly differential backup Active-passive cold site 10 / 25 A validation test in disaster recovery typically: Involves role-playing scenarios Checks whether backup systems function as intended Only checks documentation Is performed without IT staff 11 / 25 Which of the following is used to simulate a disaster recovery plan without actually taking systems offline? Failover test Functional validation Tabletop exercise Load test 12 / 25 Which is an example of a high-availability strategy? Active-active clustering Manual failover Cold site replication Offsite backup only 13 / 25 Which metric would a systems engineer use to estimate hardware replacement frequency? RTO MTTR MTBF RPO 14 / 25 You are told your DR solution must support 30 minutes of downtime and no more than 15 minutes of lost data. What are your RTO and RPO values? RTO: 15 min, RPO: 30 min RTO: 30 min, RPO: 15 min RTO: 45 min, RPO: 0 min RTO: 15 min, RPO: 15 min 15 / 25 Which recovery metric is best improved by faster backups? RPO RTO MTTR MTBF 16 / 25 In an active-passive configuration, which is true? Both systems handle traffic One system is on standby until failure occurs Load is balanced across servers Neither system is active 17 / 25 In an active-active setup, what occurs during normal operations? Only one system handles all the load Multiple systems share the workload simultaneously All systems stay offline until disaster strikes Standby system handles testing 18 / 25 What is the main difference between a cold site and a warm site? Cold site has no power Warm site has pre-installed systems and hardware Cold site is more expensive Warm site lacks connectivity 19 / 25 A warm site typically includes: Full data replication and running services Hardware and partial system configurations Just physical space Nothing until disaster strikes 20 / 25 Which type of DR site is fully operational and ready for immediate failover? Hot site Warm site Cold site DRP site 21 / 25 Which type of disaster recovery site has the longest setup time but is the most cost-effective? Hot site Warm site Cold site Remote office 22 / 25 If a server has a high MTBF, what does that imply? It fails frequently It is highly reliable It is hard to repair It has long RTO 23 / 25 Which metric indicates how long it typically takes to fix a failed component? RPO MTTR MTBF RTO 24 / 25 What does the Recovery Time Objective (RTO) measure? Time between system crashes Maximum acceptable downtime after a failure Duration of data restoration Backup retention period 25 / 25 Which metric defines how much data loss is acceptable during a disaster event? RTO RPO MTBF MTTR Your score is 0% Restart quiz Return to CompTia N+ 10-009 Objectives
