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What is a CPU?


A) The actual hardware that interprets and executes the program (software) instructions and coordinates how all the other hardware devices work together
B) The computer's main memory,which consists of the random access memory (RAM) ,cache memory and the read-only memory (ROM) that is directly accessible to the central processing unit (CPU)
C) Equipment designed to store large volumes of data for long-term storage
D) Equipment used to capture information and commands

E) B) and D)
F) None of the above

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A

Explain the difference between primary and secondary storage.

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Identify the different media types found in networks.

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What is a router?


A) Occurs when the sending computer divides a message into a number of efficiently sized units called packets,each of which contains the address of the destination computer
B) An intelligent connecting device that examines each packet of data it receives and then decides which way to send it onwards towards its destination.It is hardware to perform traffic control
C) Refers to the geometric arrangement of the actual physical organisation of the computers and other network devices in a network
D) A model for applications in which the bulk of the back-end processing,such as performing a physical search of a database,takes place on a server,while the front-end processing,which involves communicating with the users,is handled by the clients

E) B) and D)
F) All of the above

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What is a telecommunications system?


A) Enables the transmission of data over public or private networks
B) A communications,data exchange and resource-sharing system created by linking two or more computers and establishing standards,or protocols,so that they can work together
C) Any network without a central file server and in which all computers in the network have access to the public files located on all other workstations
D) A computer that is designed to request information from a server

E) B) and C)
F) C) and D)

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Network transmission media refers to the various types of media used to carry the signal between computers.

A) True
B) False

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True

What is roughly 1 million bytes?


A) Megabyte
B) Terabyte
C) Kilobyte
D) Gigabyte

E) A) and B)
F) A) and C)

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What is packet-switching?


A) Occurs when the sending computer divides a message into a number of efficiently sized units called packets,each of which contains the address of the destination computer
B) An intelligent connecting device that examines each packet of data it receives and then decides which way to send it onwards towards its destination
C) Refers to the geometric arrangement of the actual physical organisation of the computers and other network devices in a network
D) A model for applications in which the bulk of the back-end processing,such as performing a physical search of a database,takes place on a server,while the front-end processing,which involves communicating with the users,is handled by the clients

E) All of the above
F) B) and D)

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List and describe the four components that differentiate networks.

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____________ is the capability of two or more computer systems to share data and resources,even though they are made by different manufacturers.

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Which of the following represents megahertz?


A) The number of millions of CPU cycles per second
B) The number of billions of CPU cycles per second
C) A type of CPU that can recognise as many as 100 or more instructions,enough to carry out most computations directly
D) Limit the number of instructions the CPU can execute to increase processing speed

E) B) and D)
F) All of the above

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Identify the different computer categories and explain their potential business uses.

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What is system software?


A) Controls how the various technology tools work together along with the application software
B) Controls the application software and manages how the hardware devices work together
C) Provides additional functionality to the operating system
D) Used for specific information processing needs,including payroll,customer relationship management,project management,training and many others

E) A) and C)
F) All of the above

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What is an older secondary storage medium that uses a strip of thin plastic coated with a magnetically sensitive recording medium?


A) Magnetic medium
B) Magnetic tape
C) Hard drive
D) RAM

E) A) and D)
F) A) and C)

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What is a network?


A) Enables the transmission of data over public or private networks
B) A communications,data exchange and resource-sharing system created by linking two or more computers and establishing standards,or protocols,so that they can work together
C) Any network without a central file server and in which all computers in the network have access to the public files located on all other workstations
D) A computer that is designed to request information from a server

E) All of the above
F) None of the above

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Simple Mail Transfer Protocol (SMTP)is TCP/IP's own messaging system for email.

A) True
B) False

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True

What is network topology?


A) Occurs when the sending computer divides a message into a number of efficiently sized units called packets,each of which contains the address of the destination computer
B) An intelligent connecting device that examines each packet of data it receives and then decides which way to send it onwards towards its destination
C) Refers to the geometric arrangement of the actual physical organisation of the computers and other network devices in a network
D) A model for applications in which the bulk of the back-end processing,such as performing a physical search of a database,takes place on a server,while the front-end processing,which involves communicating with the users,is handled by the clients

E) All of the above
F) C) and D)

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A ____________ is designed to meet the computing needs of several people simultaneously in a small- to medium-size business environment.

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Describe TCP/IP along with its primary purpose.

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____________ access memory is the computer's primary working memory,in which program instructions and data is stored so that it can be accessed directly by the CPU via the processor's high-speed external data bus.

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