Disaster Recovery and Business Continuity Flashcards
A team leader assigns Ron, a server administrator, the task of determining the business and financial effects that a failed e-mail server would have if it was down for two hours. What type of analysis must Ron perform?
Critical systems and components identification
Business impact analysis
Security audit
Business impact analysis
A business impact analysis (BIA), also referred to as a business impact assessment, identifies the effect unwanted events have on the operation of a business
An urban law enforcement agency leases a new space in another part of town, complete with a functioning computer network mirroring the current live site. A high-speed network link constantly synchronizes data between the two sites. What type of site is the new leased location?
Frost site
Warm site
Hot site
Hot site
A hot site offers the least downtime but at the most cost, since it is an immediately available alternate processing site should the primary site become unavailable
An urban law enforcement agency leases a new space in another part of town, complete with a functioning computer network mirroring the current live site. Data backups from the primary site are copied to the new leased location every two days. What type of site is the new leased location?
Frost site
Cold site
Warm site
Warm site
Warm sites are functional only once critical data is available
Turtle Airlines has hired you to ensure that its customer reservation system is always online. The software runs and stores data locally on the Linux operating system. What should you do?
Install two Linux servers in a cluster. Cluster the airline software, with its data being written to shared storage.
Install a new Linux server. Ensure that the airline software runs from the first server. Schedule airline data to replicate to the new Linux server nightly.
Configure the Linux server with RAID 5.
Install two Linux servers in a cluster. Cluster the airline software, with its data being written to shared storage.
Clustering software between two servers will enable the customer reservation system to function even if one server fails, because the data is not stored within a single server; it exists on shared storage that both cluster nodes can access. When a cluster node (server) fails, the application fails over to a running cluster node (server)
A busy clustered web site regularly experiences congested network traffic. You must improve the web site response time. What should you implement?
Ethernet switch
Network load balancing
Fibre Channel switch
Network load balancing
Network load balancing (NLB) can distribute network traffic to multiple servers hosting the same content to improve performance
Your primary e-mail server uses three hot-swappable hard disks in a RAID 5 configuration. When one disk fails, you have other disks readily available in the server room that you simply plug in while the server is still running. Which term best describes this scenario?
Disk clustering
Hardware fault tolerance
Disk striping
Hardware fault tolerance
With hardware fault tolerance, a hardware component can fail without completely impeding data access. A single disk failure in a RAID 5 configuration means the failed disk can be hot-swapped with a functional disk. Because RAID 5 stripes data across disks in the array and parity is distributed across disks, user requests for data can be reconstructed dynamically in RAM until the data is reconstructed on the replaced disk
Your server backup routine consists of a full backup each Friday night and a nightly backup of all data changed since Friday’s backup. What type of backup schedule is this?
Full
Full and incremental
Full and differential
Full and differential
Differential backups will archive data that has changed since the last full backup. Restoring data means first restoring the full backup and then the latest differential
The chief security officer at a national bank chain will be retiring next year, and an IT security employee must be groomed to fill that position. What term encompasses this procedure?
Retirement
Job rotation
Succession planning
Succession planning
Succession planning involves identifying and preparing individuals to fill specific job roles
You are a network engineer for a San Francisco law firm. After the 1989 earthquake, an emphasis on continued business operation after future earthquakes dominated in the San Francisco business community. What type of plan focuses on ensuring that personnel, customers, and IT systems are minimally affected after a disaster?
Fault tolerant
Disaster recovery
Business continuity
Business continuity
Business continuity is considered the key goal to which disaster recovery plays a part. Disaster recovery (DR) normally involves implementing steps to get the business operational. Business continuity ensures business operation after the successful implementation of the DRP. Keeping the organization functional sometimes requires the use of an alternate site if the primary site fails, or the use of a recruitment agency (against normal business practices) to employ workers if there is a worker shortage
Windows Server 2012 backups are scheduled as follows: full backups on Saturdays at 3 a.m. and incremental backups weeknights at 9 p.m. Write verification has been enabled. Backup tapes are stored off site at a third-party location. What should be done to ensure the integrity and confidentially of the backups? (Choose two.)
Have a different person than the backup operator analyze each day’s backup logs.
Ensure the user performing the backup is a member of the Administrators group.
Encrypt the backup media.
Use SSL to encrypt the backup media.
Have a different person than the backup operator analyze each day’s backup logs.
Encrypt the backup media.
To reduce the likelihood of tampering, a different person should review backup logs. For confidentiality, backup tapes stored off site should be encrypted
You are an IT network architect. Your firm has been hired to perform a network security audit for Acme Shipping, Inc. One of Acme’s warehouses has a server room containing one Windows server and two Linux servers. After interviewing the server administrators, you learn they have no idea what to do if the Linux servers cease to function. What is needed here?
Disaster recovery plan
Risk analysis
Windows servers
Disaster recovery plan
Disaster recovery plans outline exactly who must do what in case unfavorable events occur
Which items should be considered when ensuring high availability for an e-commerce web site? (Choose two.)
Using TPM to encrypt server hard disks
Using redundant Internet links
Network load balancing
Upgrading the server CMOS to the latest version
Using redundant Internet links
Network load balancing
High availability makes a resource available as often as is possible. Redundant Internet links allow access to the web site even if one Internet link fails. Network load balancing (which could use the redundant Internet links) distributes traffic evenly either to server cluster nodes or through redundant network links
Which of the following should be considered when creating a disaster recovery plan?
(Choose three.)
Determining which class of IP addresses are in use.
Ranking risks.
Disabling unused switch ports.
Assigning recovery tasks to personnel.
Establishing an alternate location to continue business operations.
Ranking risks.
Assigning recovery tasks to personnel.
Establishing an alternate location to continue business operations.
Risks should be ranked to determine which are the most probable. The most attention should be given to the most likely threats. Personnel must be assigned tasks according to the disaster recovery plan (DRP) to minimize confusion and downtime. DRPs also provide details about the order of restoration, such as the order in which software components must be placed back into operation. An alternate site (cold, warm, or hot) should at least be considered. Larger businesses or agencies may be able to justify the cost of maintaining an alternate site
As part of your disaster recovery planning, you create a prioritized list of professionals who can be contacted in the event of a flood. Who are they? (Choose three.)
Property restoration specialist
Document restoration specialist
Server backup specialist
Server restoration specialist
Property restoration specialist
Document restoration specialist
Server restoration specialist
Property restoration specialists efficiently restore the state of a facility so that a business can continue to operate. Their responsibilities include HVAC, electricity, water, lighting, and so on. Document restoration specialists have expertise in retrieving damaged data, whether it is physical (paper documents) or digital. Server restoration specialists are trained in quickly getting servers up and running to their previous state. A disaster recovery plan is required for server restoration specialists to perform their duties efficiently
What should be used to make informed decisions regarding your specific disaster recovery plan?
DRP template freely downloaded from a web site
ROI analysis
Business impact analysis
Business impact analysis
A business impact analysis identifies which risks will affect business operations more than others. This is valuable in determining how to recover from a disaster
Identify the disaster recovery plan errors. (Choose two.)
Perform a business impact analysis first.
Base your DRP on a downloaded template.
Data backups are never tested; it costs the company too much money.
Keep existing backup solutions in place even though the software is two versions out of date.
Base your DRP on a downloaded template.
Data backups are never tested; it costs the company too much money.
Your DRP should be much more specific than what a downloaded template can provide. DRPs are not worth their investment if their success has not been proven through testing
You are creating a DRP for a small, independent car dealership. There are four employees who each use a desktop computer; there are no servers. All company data is stored on the four computers. A single high-speed DSL link is shared by all users. What are the best DRP solutions? (Choose two.)
Store data with an online data storage service.
Ensure employees know exactly what to do in the event of a disaster.
Purchase faster desktops.
Purchase a file server.
Store data with an online data storage service.
Ensure employees know exactly what to do in the event of a disaster.
Online data storage would be an affordable solution to safeguard business data. Users must know what to do in the event of a catastrophe to ensure the timely resumption of business
Mark is the server specialist for Big Game Hunting, Inc. While installing a new server data hard disk, Mark spills his cup of coffee on the old server data hard disk. What should Mark do?
Use a blow-dryer to dry the hard disk.
Immerse the hard disk in warm water to remove the coffee.
Place the hard disk in an air-sealed container.
Place the hard disk in an air-sealed container.
Mark must ensure the coffee does not dry onto any electrical components. An air-sealed container is a good solution, followed by immediately contacting a data recovery specialist
You are working with management to justify the cost of a warm site versus a cold site. What factors can help justify the cost of a warm site? (Choose two.)
Large revenue loss during short downtime
Small revenue loss during long downtime
Customer contracts tolerating no more than 8 hours of downtime
Customer contracts tolerating no more than 72 hours of downtime
Large revenue loss during short downtime
Customer contracts tolerating no more than 8 hours of downtime
Some businesses could lose large sums even in a short period of downtime. Calculating these figures enables intelligent decisions to be made regarding justifying the cost of an alternate site. Your business may have customer contracts requiring minimal downtime in the event of a disaster. The cost of the loss of this business could be factored into justifying the cost of an alternate (warm) site
Your senior network administrator has decided that the five physical servers at your location will be virtualized and run on a single physical host. The five virtual guests will use the physical hard disks in the physical host. The physical host has the hard disks configured with RAID 1. Identify the flaw in this plan.
The physical server should be using RAID 5.
You cannot run five virtual machines on a physical host simultaneously.
The physical host is a single point of failure.
The physical host is a single point of failure.
If the single physical host experiences a failure, all five virtual machines will be unavailable. A second server should be clustered with the first, and virtual guests should use shared disk storage versus local disk storage
Your company is virtualizing DNS, DHCP, web, and e-mail servers at your location. Each of the four virtual machines will be spread out across two physical hosts. Virtual machines are using virtual hard disks, and these files exist on a SAN. Choose the best virtual machine backup strategy that will allow the quickest granular restore.
Back up the virtual machine hard disks at the SAN level.
Install a backup agent in each virtual machine and perform backups normally.
Duplicate your SAN disk array so that backups are not necessary.
Install a backup agent in each virtual machine and perform backups normally.
If granular restores are required, backing up each virtual machine using a backup agent installed in each virtual machine is the best choice
What should you do when storing server backup tapes off site?
Encrypt backed-up data.
Generate file hashes for each backed-up file.
Place backup tapes in static shielding bags.
Encrypt backed-up data.
Backup tapes stored off site must be encrypted to ensure data confidentiality
You are the administrator for a virtual Windows 2012 Server running Active Directory Domain Services (AD DS). Abnormal server behavior and finally a server freeze lead you to believe that the server has a virus infection. What should you do?
Revert to an earlier virtual machine snapshot prior to the virus infection.
Format the hard disk, reinstall the server, and restore from tape.
Refer to your DRP.
Refer to your DRP.
A DRP specifies who should do what in case of a disaster, such as in the case of an infected server
What is the purpose of a disaster recovery plan? (Choose two.)
To minimize economic loss
To have a premeditated reaction to public relations blunders
To install confidence in shareholders
To earn a high rate of return annually
To minimize economic loss
To install confidence in shareholders
Minimizing downtime, reducing customer disruption, and avoiding economic loss are the reasons for a disaster recovery plan. Shareholder confidence is solidified when an efficient, well-thought-out disaster recovery plan is in place
Which of the following would appear on a DRP?
Prioritized list of critical computer systems
Single points of failure
Dollar value associated with an hour of downtime
Prioritized list of critical computer systems
Prioritized lists of critical computer systems helps ensure minimal downtime
You are the network administrator for a small IT consulting firm. All servers are located at the single site. After testing the DRP and receiving management approval, you e-mail a copy to all employees for their reference in the event of a disaster. Identify the problem.
The e-mail should have been digitally signed.
Only executives should have received the message.
The mail server might not be available in the event of a disaster.
The mail server might not be available in the event of a disaster.
The only copy of the disaster recovery plan exists on a mail server that users may not have access to when they need it most. Alternate storage locations and physical copies must be considered
You are the network administrator for a small IT consulting firm. All servers are hosted externally. After analyzing threats, creating a DRP, and receiving management approval, you e-mail a copy to all employees for their reference in the event of a disaster. Identify the problem.
The e-mail should have been encrypted.
The DRP was not tested.
Only executives should have received the message.
The DRP was not tested.
A disaster recovery plan changes with the business and must be tested to ensure its success
Which of the following regarding disaster recovery are true? (Choose two.)
Once the plan is complete, it need never be revisited.
Once the plan is complete, it must have management approval.
The plan is never complete; it must evolve with the business.
The plan should include only IT systems.
Once the plan is complete, it must have management approval.
The plan is never complete; it must evolve with the business.
Without management support and approval, a disaster recovery plan will not succeed. The plan must be revisited periodically to ensure that it is in step with changes in the business
You are a web site administrator. You need to minimize web site downtime in the event of a disaster or security compromise. Which of the following terms best describes the reliability of hard disks?
MTBF
MTTF
MTTR
MTTR
Mean time to recovery (MTTR) measures the amount of time it takes to return a device, system, or network to normal functionality
As the IT director, you are comparing public cloud providers. Your company will no longer house on-premises mail or application servers. Which factors under your control must you consider to ensure that mail and applications are always available to users?
Updates applied to cloud provider servers
Redundant network links
RAID level used on cloud provider servers
Redundant network links
Redundant network links to the Internet will ensure that if one Internet connection fails, the other can be used to access mail and application services in the cloud. Laws and regulations can sometimes prevent the use of cloud applications and cloud storage. In response to this issue, many large cloud providers offer community clouds that cater to specific industries and their security requirements. Another cloud storage issue is data sovereignty, which deals with the physical location of data and any applicable laws. Cloud providers allow customers to specify a region in which data is stored
Laurel is the head of IT security for a government department. Recent repeated security breaches involving malware on removable media have her concerned about future incidents, so she reviews the past incident responses to determine how such occurrences can be prevented and how responses can be improved. What type of document should Laurel prepare?
After-action report
SLA
Risk assessment
After-action report
After-action reports take lessons learned from previous incidents—essentially they strive to improve upon identified problems that hampered incident response
