27) Which of the following statements is true of content delivery networks (CDNs)?
A) They reduce access costs by delivering data faster.
B) They distribute data on different servers without any data replication.
C) They use geographic proximity as the factor to decide which server should deliver a requested content.
D) They use predetermined servers to deliver content to each location irrespective of traffic changes.
28) An internal information system built using Web services is said to be using the cloud if it ________.
A) allocates specific servers to each task
B) offers elasticity in the usage of servers
C) uses the Intranet
D) provides platform as a service (PaaS)
29) Which of the following is a reason for an internal information system that uses Web services to not be considered a cloud?
A) The number of servers is fixed and is not made elastic.
B) Idle servers are dynamically re-allocated.
C) Data transfer is enabled without dependency on the Internet.
D) Web service standards are not followed, as they are confined within the limits of a company.
30) Organizations can dynamically reuse servers that use Web services internally by ________.
A) creating a private cloud
B) replicating the servers
C) allocating different servers for different services
D) making the servers elastic
31) To use software as a service (SaaS), a user has to just sign up for the service and learn how to use it.
32) A content delivery network (CDN) provides a specialized type of platform as a service (PaaS).
33) A content delivery network (CDN) services a user's request using the geographically closest server.
34) Content delivery networks (CDNs) increase a Web page's load time.
35) A routing server determines which content delivery network (CDN) server should respond to a request in real time.
36) Content delivery networks (CDNs) are used to store and deliver content that rarely changes.
37) A user can receive various pieces of a Web page from different servers on a content delivery network (CDN).