Insufficient ______ can cause a proces...

单项选择题

A ______ system placed between the company network and the outside world may limit outside access to the internal network.

A．firewall
B．modem
C．gateway
D．key

单项选择题

C++ fully supports ______ programming.

A．visual
B．object-oriented
C．logic
D．natural language

单项选择题

In ______, the only element that can be deleted or removed is the one that was inserted most recently.

A．a line
B．a queue
C．an array
D．a stack

单项选择题

As an operating system repeatedly allocates and frees storage space, many physically separated unused areas appear. This phenomenon is called ______.

A．fragmentation
B．compaction
C．swapping
D．paging

单项选择题

The Internet is an open system, and most information is available to everyone. It is very important to add ______ to existing system for protecting the secret information.

A．web pages
B．modem
C．security
D．network

单项选择题

Most ______ measures involve data encryption and password.

A．security
B．hardware
C．display
D．program

单项选择题

The usual address for a Web site is the ______ page address， although you can enter the address of any page and have that page sent to you.

A．home
B．main
C．host
D．house

单项选择题

The ______ in e-mail messages has affected almost every computer around the world and has caused the damage of up to US$1 billion in North America.

A．illness
B．virus
C．weakness
D．attachment

单项选择题

A ______ infected computer may lose its data.

A．file
B．data base
C．virus
D．program

单项选择题

______ software, also called end-user program, includes database programs, word processors, spreadsheets etc.

A．Application
B．System
C．Compiler
D．Utility

单项选择题

A ______ consists of the symbols, characters, and usage rules that permit people to communicate with computer.

A．programming language
B．network
C．keyboard
D．display

单项选择题

One of the greatest features of a home ______ is the ability to share one Internet connection simultaneously over two or more computers.

A．computer
B．device
C．network
D．work

单项选择题

The ______ is a collection of modules serving as interface between hardware and software to provide a software platform.

A．computer
B．processor
C．application software
D．operating system

单项选择题

The line of computing jobs waiting to be run on a computer system might be a ______. The jobs are serviced in the order of their arrival, that is, the first in is the first out.

A．queue
B．stack
C．array
D．record

单项选择题

Insufficient ______ can cause a processor to work at 50% or even more below its performance potential.

A．mouse
B．I/O
C．document
D．memory

单项选择题

Insufficient ______ can cause a processor to work at 50% or even more below its performance potential.

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A ______ system placed between the company network and the outside world may limit outside access to the internal network.

C++ fully supports ______ programming.

In ______, the only element that can be deleted or removed is the one that was inserted most recently.

As an operating system repeatedly allocates and frees storage space, many physically separated unused areas appear. This phenomenon is called ______.

The Internet is an open system, and most information is available to everyone. It is very important to add ______ to existing system for protecting the secret information.

Most ______ measures involve data encryption and password.

The usual address for a Web site is the ______ page address， although you can enter the address of any page and have that page sent to you.

The ______ in e-mail messages has affected almost every computer around the world and has caused the damage of up to US$1 billion in North America.

A ______ infected computer may lose its data.

______ software, also called end-user program, includes database programs, word processors, spreadsheets etc.

A ______ consists of the symbols, characters, and usage rules that permit people to communicate with computer.

One of the greatest features of a home ______ is the ability to share one Internet connection simultaneously over two or more computers.

The ______ is a collection of modules serving as interface between hardware and software to provide a software platform.

The line of computing jobs waiting to be run on a computer system might be a ______. The jobs are serviced in the order of their arrival, that is, the first in is the first out.

Insufficient ______ can cause a processor to work at 50% or even more below its performance potential.

A ______ is a functional unit that interprets and carries out instructions. )

We can use the word processor to ______ your documents.

One of the basic rules of computer security is to change your ______ regularly.

To document your code can increase program (2) and make program easier to (3) .

To document your code can increase program (2) and make program easier to (3) .