Domain 3.2: Compare and contrast business continuity and disaster recovery concepts.

Which choice below represents the LEAST expensive solution for an alternative backup site? A) Hot site B) Warm site C) Cold site D) Just right site E) None of these.

C) Cold site - Cold sites supply a basic environment with no hardware infrastructure and are the least expensive to implement.

This backup type backs up all data that as changed since the last backup of any type. A) Full B) Differential C) Incremental D) Hot

C) Incremental - A full backup backs up all data each time it is run. This is the most time-consuming method. An incremental backup backs up data that has changed since the last backup. A differential backup backs up data that has changed since the last full backup.

When discussing fault tolerance for your network, it is determined that your physical hardware has redundant power for the critical devices. Which choice would provide optimal redundancy for network faults? A) Link aggregation B) NIC teaming C) Load balancing D) Port aggregation

C) Load balancing - In this example, load balancing would enable the network to operate normally in the event of a fault. The other methods shown are targeted more at increasing bandwidth.

What would you consider to be a primary requirement in a system designed to provide high availability? A) Connection speed B) IPS/IDS C) Redundancy D) Environmental controls

C) Redundancy

You need to configure you server pool to appear as a single IP address. Which technique would you use? A) Clustering B) Bundling C) SAN D) VPN

A) Clustering - A server pool can be configured as a cluster, allowing the server pool to appear as a single IP address instead of multiple, individual addresses. Bundling is not a relevant term here. A SAN (Storage Area Network) can be used to cluster storage devices for servers but its not considered part of the server pool. A VPN (Virtual Private Network) is irrelevant to server pools and clusters.

This backup type backs up all data, regardless of any interim backup. A) Full B) Differential C) Incremental D) Hot

A) Full - A full backup backs up all data each time it is run. This is the most time-consuming method. An incremental backup backs up data that has changed since the last backup. A differential backup backs up data that has changed since the last full backup.

Which choice below represents the most expensive solution for an alternative backup site? A) Hot site B) Warm site C) Cold site D) None of these

A) Hot site - Hot sites are fully configured and ready to operate within hours of a disaster.

MTBF and MTTR are both used when evaluating redundancy. Which of these terms would be the most effective metric to prevent downtime? A) MTBF B) MTTR C) Both are equal

A) MTBF - Even the best devices fail eventually. With the MTBF, information technicians can apply preventative measures and reduce if not eliminate downtime.

This document clearly defines a provider's requirements to a company. It will contain specific criteria to ensure that both parties understand the expected performance level. A) SLA B) MOU C) AUP D) SDA

A) SLA

When you are discussing SLA requirements, what area are you focusing on? A) Service levels B) Security levels C) Software licenses D) Safety

A) Service levels - The SLA is the service level agreement between the customer and provider. It typically covers uptime, bandwidth usage, and performance. The other listed answers are not typically part of the SLA.

True or False? An effective disaster recovery plan for a small company could be as simple as a regular backup strategy?

True - Every small business should have a backup recovery plan that may consist simply of a regular backup.

True or False? It is extremely important to have your disaster recovery plan including well documented paper records stored in a safe place.

True - Hard copies of documents should be stored in various locations and at an off-site facility.

When comparing disaster recovery contingencies, which one of the following categories might maintain a duplicate of each of your data center servers but would not be updated daily with your live data and have fewer computers and devices than are used in your daily operation? A) A cold site. B) A warm site. C) A boiler room. D) A hot site.

B) A warm site. - The warm site is a place where the computers, devices, and connectivity necessary to rebuild a network exist, with some pieces appropriately configured, updated, or connected. Typically you would have the warm site service provider update those duplicate servers with your backed-up data on the first each month as a cost-saving measure compared to the expense of performing a daily update (which would be typical of a hot site).

Of the devices shown, which is NOT true regarding snapshots? A) Backup server state even while in use. B) Can fully restore a server C) Are stored locally D) Are an incremental backup

B) Can fully restore a server - A server snapshot can use stored system state data to reset undesired changes. It will not replace a fullback up or recover the server data.

When planning for disaster recovery time, which choice may take weeks to fully recover? A) Hot site B) Cold site C) Warm site D) This depends on the network

B) Cold site - In disaster recovery, a hot site can be deployed in a matter of minutes. Warm sites have much of the equipment pre-configured and can be brought online in hours or days, more quickly than a cold site, which essentially has the equipment, but it is not configured. Cold site recovery can take weeks.

This backup type backs up all data that has changed since the last full backup. A) Full B) Differential C) Incremental D) Hot

B) Differential - A full backup backs up all data each time it is run. This is the most time-consuming method. An incremental backup backs up data that has changed since the last backup. A differential backup backs up data that has changed since the last full backup.

When planning for disaster recovery time, which choice can be quickly recovered? A) Hot site B) Cold site C) Warm site D) This depends on the network

B) Hot site - In disaster recovery, a hot site can be deployed in a matter of minutes. Warm sites have much of the equipment pre-configured and can be brought online in hours or days, more quickly than a cold site, which essentially has the equipment, but it is not configured. Cold site recovery can take weeks.

Your network documentation contains the acronym MTBF related to devices and services. Which choice most accurately defines this acronym? A) Medial Time Before Failures B) Mean Time Between Failures C) Mean Time Before Faults D) Mean Time Between Faults

B) Mean Time Between Failures - MTBF is a metric developed by manufacturers and service providers to predict failures, enabling technicians to repair/replace components before they fail.

The acronym MTTR is used in your documentation. How would you prepare to reduce this factor? A) Predict the occurrence B) Use MTBF and have replacements on hand C) Create a solid response policy D) Reduce the stresses on the components

B) Use MTBF and have replacements on hand - MTTR is the Mean Time To Repair. This indicates a failure with a calculated replacement timeline. The best way to reduce this time is to have the parts on hand. If you know that a server drive running 24/7 will fail within a specified timeframe, have one on hand. Having said this, the chances are high that you will upgrade most devices before they fail.

Which choice below represents a backup site that is partially configured with some equipment? A) Hot site B) Warm site C) Cold site D) None of these

B) Warm site - Warm site is configured with some equipment and provide a facility and some devices but not a full configuration like a hot site.

When comparing uninterruptable power supplies, the most important factor to consider when purchasing a UPS is which of the following? A) How long to keep a device running? B) What is the amount of power needed? C) Do I need line conditioning? D) How much will it cost?

B) What is the amount of power needed? - The most important step in UPS selection and shopping process is to sit down and chart out your power needs before spending money on equipment that is over-dimensioned (or worse, underpowered) for your situation. Begin by thinking about all the systems that need the extended power protection supplied by a UPS unit, to stay online in the event of power outages. The more power required by a device the more powerful the UPS needs to be. Electrical power is measured in volt-amperes or the VA (the product of voltage and current measured in AMPs.

Which choice below represents a backup site that contains only basic computing environments such as wiring, ventilation, and flooring. A) Hot site B) Warm site C) Cold site D) None of these.

C) Cold site

True or false? When choosing a site that will be used for storage, it is important to duplicate the environment found at the site used for your daily operations?

False - organizations with business critical data processing requirements will utilize offsite storage

Application aware devices respond to network traffic and can be added to which of these devices? A) Firewalls B) IPS C) Proxies D) All of the above

D) All of the above - Application aware devices respond to network traffic and can be added as a function to firewalls, ISPs and IDSs and proxies.

Using redundant links or connections to make network interfaces or ports appear as one logical interface is called _________ __________. A) NIC teaming B) Link aggregation C) Port aggregation D) Any of these

D) Any of these - Redundant links are essential to load balancing. This technique is known by several names. Cisco refers to this as port aggregation and Windows refers to this as NIC teaming. The term link aggregation is also used.

Which of these is a diesel, fossil fuel, or steam powered unit that provides redundant power in the event of a total blackout? A) Dual power supplies B) UPS C) Line conditioner D) Generator

D) Generator