49) Columns are also called

1 punto

A) rows.

B) databases.

C) fields.

D) relations.

E) tables.

50) In a relational database, a collection of related records is a(n)

1 punto

A) row.

B) attribute.

C) table.

D) column.

E) field.

36) Mobile banking and mobile ticket purchases are examples of

1 punto

A) packet processing.

B) advanced SDSL.

C) optical fibre cables.

D) the network effect.

E) m-commerce.

42) Organizations can dynamically reuse servers that use Web services internally by

1 punto

A) creating a private cloud.

B) replicating the servers.

C) allocating different servers for different services.

D) making the servers elastic.

46) When using Google Docs in a collaborative group project, workflow control ensures

1 punto

A) all members know how to use the applications.

B) all members have access to the applications.

C) the network is up and functioning.

D) one member's work does not interfere with another member's work.

E) the project work gets completed.

48) By expanding your personal professional network on LinkedIn

1 punto

A) you are creating a local network.

B) you are taking advantage of network externalities.

C) you are taking advantages of your professional contacts.

D) you are taking advantages of technology.

E) you have joined the trend of collaboration.

50) Which of the following statements best defines the cloud?

1 punto

A) The cloud is the elastic leasing of pooled computer resources over the Internet.

B) The cloud is a peer-to-peer network used to share data between users.

C) The cloud is the elastic leasing of in-house computer hardware.

D) The cloud is the network of servers hosted in-house by an organization for its own requirements.

51) In the context of the cloud, which of the following best describes the term elastic?

1 punto

A) It means that the computing resources leased can be increased or decreased dynamically in cloud-based hosting.

B) It means that the operations staff manually allots fresh resources when the traffic increases.

C) It means that the customers are provided a consistent bandwidth on the cloud.

D) It means that the resources available for cloud-hosting are shared among customers.

54) Which of the following statements is true of a virtual private cloud (VPC)?

1 punto

A) A VPC does not make use of a virtual private network.

B) A VPC generally stores an organization's most sensitive data.

C) A VPC can be accessed only from within an organization.

D) A VPC can be built on a public cloud infrastructure.

58) Which of the following statements is true of cloud-based hosting?

1 punto

A) It makes scaling up to meet the demands of increased traffic difficult.

B) It involves the risk of investing in technology that may soon become obsolete.

C) It gives greater control over physical location of data.

D) It gives little visibility over the security being used to protect data.

60) Which of the following factors has contributed to an increase in the popularity of cloud hosting?

1 punto

A) Demand for services that can run without the support of the Internet

B) Development of virtualization technology that allows near-instantaneous creation of new virtual machines

C) Development of Web services that can be accessed without meeting the service-oriented architecture specifications

D) Increase in the cost of processors, data communication, and data storage

63) Which of the following is true of a virtual private network (VPN)?

1 punto

A) It provides a secure connection for information transmitted over the public Internet.

B) It does not encrypt messages.

C) It is limited to organizational use.

D) It can be used to store highly sensitive information of an organization