chapter5 msis

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what refers to how quickly a system can transform to support environmental changes?
answer

maintainablity
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Portability
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refers to the ability of an application to operate on different devices or software platforms, such as different operating systems
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select two items a disaster recovery cost curve charts
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1.the cost to the company of the unavailability of information and technology 2.the cost to the company of recovering from disaster over time
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Accessibility
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varying levels allow system users to access, view, or perform operational function
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availability
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the system is operational during different time frams
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maintainablity
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the system quickly transforms to support environmental change
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portability
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the system is available to operate on different devices or software platforms
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reliability
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the system functions correctly and provides accurate information
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scalability
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the system can \”scale up\” or adapt to the increased demands of growth
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usability
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the system is easy to learn and efficient and satisfying to use
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what describe the production, management, use, and disposal of technology in a way that minimizes damage to the environment ?
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sustainable MIS
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High availability
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occurs when a system is continuously operational at all time s
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select two accurate statements in relation to MIS infrastruture
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1.hardware consists of the physical devices associated with a computer system 2.software is the set of instructions the hardware executes to carry out specific tasks
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what represents the maximum throughput a system can deliver; for example, the capacity of hard drive represent its size or volume?
answer

capacity
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what is a company’s acknowledged responsibility to society?
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corporate social responsibility
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what is an exact copy of system’s information?
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backup
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three sustainable MIS Infrastructure
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Grid computing, cloud computing, virtualiztion
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what measures how quickly a third party can change a system to ensure it meets user needs and the terms of any contracts, including agreed levels of reliability, maintainability, or availability?
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serviceability
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what is an infrastructure built for notifying people in the event of emergency?
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emergency notification service
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what means the MIS infrastructure can be automatically scaled up or down based on needed requirement?
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dynamic scaling
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three pressures driving sustainable MIS infrastructures
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increased electronic waste, increased energy consumption, increased carbon emissions
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Ewaste
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refer to discarded, obsolete, or broken electronic devices
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sustainable MIS disposal
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refer to the safe disposal of MIS asserts at the end of their life cycle
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recovery
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is the ability to get a system up and running in the event of a system crash of failure that includes restoring the information backup
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fault tolerance
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is the ability for a system to respond to unexpected failures or system crashes as the backup system immediately and automatically takes over with no loss of service
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failover
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a specific type of fault tolerance, occurs when a redundant storage server offers an exact replica of the real-time data, and if the primary server crashes, the users are automatically directed to the secondary server or backup server
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failback
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occurs when the primary machine recovers and resumes
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disaster recovery plan
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which is a detailed process for recovering information or a system in the event of a catastrophic diasater
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hot site
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a separate and fully equipped facility where the company can move immediately after a disaster and resume business
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cold site
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a separate facility that does not have any computer equipment, but is a place where employees can move after a disaster
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warm site
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a separate facility with computer equipment that requires installation and configuration
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disaster recovery cost curve
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1.the cost to the company of the unavailability of information and technology 2.the cost to the company of recovering from a disaster over time
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business continuity planning(BCP)
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which details how a company recovers and restores critical business operations and systems after a disaster or extended disruption
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business impact analysis
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identifies all critical business functions and the effect that a specific disaster may have upon them
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BCP focus areas
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disaster recovery plan, technology recovery strategies, business impact analysis, emergency notification services
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emergency notification service
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an infrastructure built for notifying people in the event of an emergency
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technology failure
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occurs when the ability of a company to operate is impaired because of a hardware, software, or data outage
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cloud computing
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is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources that can be rapidly provisioned and released with minimal management effort or service provider interaction
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infrastructure as a Service
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offers hardware and networking equipment on a pay-per-use basis.(eg. Amazon EC2)
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software as a Service
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offers applications on a pay-per-use basis (eg. Salesforce.com)
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platform as a Service
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offers hardware, networking, and applications on a pay-per-use basis (eg. Google Application Engine)
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public cloud
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promotes massive, global, and industrywide applications offered to the general public
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private cloud
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serves only one customers or organization and can be located on the customer’s premises or off the customer’s premises
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community cloud
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serves a specific community with common business models, security requirements, and compliance considerations
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hybrid cloud
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includes two or more private, public, pr community clouds, but each cloud remains separate and is only linked by technology that enables data and application portability

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