mis 2 chapter 6 – Flashcards
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which of the following statements best defines the cloud?
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the cloud is the elastic leasing of pooled computer resources over the internet.
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what does the term elastic in the definition of the cloud mean?
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it means that the computing resources leased can be increased or decreased dynamically in cloud based hosting.
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an organization that hires cloud services...
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can limit the responsive time of its web pages
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which of the following statements is true of web services?
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they are programs designed using the concept of service oriented architecture.
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which of the following statements is true of cloud based hosting?
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it gives little visibility over the security being used to protect data.
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which of the following is an advantage of in house hosting?
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it gives greater control over the location of data.
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which of the following factors has contributed to an increase in the popularity of cloud hosting?
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development of virtualization technology that allows near instantaneous creation of new virtual machines
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cloud resources are pooled because many different organizations use the same physical hardware
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true
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cloud vendors do not benefit from economies of scale
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false
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service oriented architecture (SOA) is a way of designing computer programs so that they can be combined flexibly.
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true
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as standard practice, customers are regularly updated by cloud vendors about the location and number of copies made of their data.
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false
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to use cloud based hosting, an organization will have to construct its own data center
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false
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before the creation of personal computers, time sharing vendors provided slices of computer time on a use-fee basis.
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true
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cloud based hosting is preferred by organizations that are required by law to have physical control over their data
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false
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phobas inc. offers an online service that stores notes made by customers on the cloud. when a customer enters notes on a device, it gets updated in all the devices he/she owns. which of the following cloud-based offerings does phobas inc. provide to its customers?
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software as a service (SaaS)
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an online service provider provides its users with hosted computers, an operating system, and a database management system. this allows customers to add their own applications to the hosted services. which of the followng cloud- based offerings is being provided to the users?
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platform as a service (PaaS)
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the cloud based service that provides the hardware and allows customers to load an operating system of their choice is known as...
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infrastructure as a service (IaaS)
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A ... is an information system that stores user data in many different geographical locations and makes that data available on demand.
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content delivery network
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which of the following is an advantage of a content delivery network?
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it provides protection from denial- of service (DOS) attacks.
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which of the following statements is true of content delivery networks (CDNs)?
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they reduce access costs by delivering data faster.
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an internal information system built using web services is said to be using the cloud if it....
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offers elasticity in the usage of servers
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which of the following is a reason for an internal information system that uses web services to not be considered a cloud?
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the number of servers is fixed and is not made elastic.
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organizations can dynamically reuse servers that use web services internally by...
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creating a private cloud
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to use software as a service a user has to just sign up for the service and learn how to use it
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true
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a content delivery network provides a specialized type of platform as a service
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true
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a content delivery network services a users request using the geographically closest server
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false
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content delivery networks increase a web pages load time
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false
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a routing server determines which content delivery network server should respond to a request in real time
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true
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content delivery networks are used to store and deliver content that rarely changes
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true
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a user can receive various pieces of a web page from different servers on a content delivery network
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true
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an elastic load balancer is a feature available in a private cloud that is not available in internal information systems, built using web services.
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true
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an organizations internal information system that does not provide elasticity is still considered a cloud
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false
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sireus corp has availed a cloud based service. as this service provides hardware and operating systems, sireus corp can easily install its software on this cloud product. which of the following services has the company availed from its cloud vendor?
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platform as a service (PaaS)
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if an organization opts for software as a service it will have to...
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transfer data and develop procedures
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a vendor providing software as a service usually makes the software available as a thin client
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true
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if software licensed from others is to be installed on the cloud, licenses that permit replication must be purchased.
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true
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database management system products are included in infrastructure as a service
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false
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a small company is likely to choose infrastructure as a service as it does not require much technical expertise to load operating systems on a server
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false
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what is a virtual private network?
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it is a connection that uses the internet to create secure point to point connections
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which of the following is true of a virtual private network
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it provides a secure connection for information transmitted over the public internet
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which of the following is an advantage of a virtual private network?
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it helps to securely access information over the public internet.
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which of the following statements is true of private clouds?
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idle servers in a private cloud cannot be repurposed for use by other organizations.
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which of the following is an advantage of a private cloud in an organization
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it allows the organization to manage its servers with elastic load balancing
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which of the following statements is true of a virtual private cloud?
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a vpc can be built on a public cloud infrastructure
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which of the following is a difference between a virtual private network and a virtual private cloud?
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a vpc probides the advantages of cloud storage, but a vpn by itself cannot provide these advantages
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which of the following is an advantage of using a private cloud over a virtual private cloud?
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unlike a vpc, a private cloud does not require permission from regulating bodies to host sensitive data
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a tunnel is a virtual, private pathway over a public or shared network from the virtual private network client to the vpn server.
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true
