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Identifique abaixo as afirmativas verdadeiras ( V ) e as falsas ( F ), com relação à normalização de dados, ou FN.
( ) Recomenda-se especialmente aos sistemas do tipo data warehouse e BI.
( ) Bases de dados normalizadas possuem desempenho inferior às não normalizadas.
( ) A consistência dos dados aumenta à medida que se avança nos níveis de FN.
( ) Afirma-se que uma relação está livre de atributos multivalor somente a partir da 3FN.
Assinale a alternativa que indica todas as afirmativas corretas.
Com relação a estruturas de dados, analise as afirmativas abaixo:
1. A manipulação de elementos intermediários em pilhas ocorre de forma indireta.
2. As filas, ao contrário das pilhas, trabalham com o conceito FIFO.
3. Toda e qualquer árvore é também uma tabela hash.
4. Árvore B pode ser utilizada em bancos de dados e/ou sistemas de arquivos.
Assinale a alternativa que indica todas as afirmativas corretas.
Com relação ao protocolo 802.1q, pode-se afirmar:
1. Segmenta os domínios de broadcast em uma mesma rede física sem precisar de roteador.
2. Ao trabalhar na camada de rede causa perda de desempenho.
3. Permite às redes wireless atingir velocidades maiores quando usado na camada de enlace.
4. Aumenta a segurança de redes wireless.
Assinale a alternativa que indica todas as afirmativas corretas.
Phishing ou phishing scam é uma técnica que visa principalmente:
A Intranet de uma determinada empresa é acessada pelos seus funcionários através de browsers instalados em seus computadores. O acesso é feito digitando-se //intranet/ na barra de endereços do browser. Para que este acesso seja possível, o computador que responde pelo endereço //intranet/ deve rodar um programa:
Sobre o Microsoft Access 2000 (considerando instalação padrão em português), é INCORRETO afirmar que:
Observe o código Javascript a seguir.
<script language=“JavaScript”>
For (tot = 0, a = 1, b = 0, x = 0; tot < 7; tot++, x=a+b, b=x) {
Document.write(x + “ ”);
}
</script>
A execução desse código irá gerar a seguinte sequência de números:
Um das vantagens da linguagem XHTML em relação à HTML, é que ela suporta
As cores constituem um aspecto importante na apresentação de conteúdo de forma visual. Na web, aplicam‐se cores ao texto, ao background e às bordas dos elementos, sendo que o CSS oferece diversas maneiras de especificar cores.
Para gerar texto em amarelo, por exemplo, pode‐se utilizar uma das sintaxes CSS indicada na seguinte alternativa:
No Adobe Dreamwaver, para que um usuário visualize seu trabalho em um browser instalado no computador é necessário apertar a seguinte tecla:
No sistema operacional Mac OS X, por default uma pasta contém fontes, plug‐ins e outros softwares que estão disponíveis a todos os usuários de seu computador.
Essa pasta é denominada
O sistema operacional Macintosh Mac OS X possui as características listadas a seguir.
I. A janela do gerenciador de arquivos, que permite navegar, organizar e visualizar os conteúdos de disco rígido e de CD/DVD.
II. Uma barra, normalmente na parte inferior da tela, com diversos ícones, referentes a aplicativos, abertos a partir de um simples clique do mouse.
Por padrão, esse gerenciador de arquivos e essa barra são denominados, respectivamente,
Em um microcomputador com sistema operacional Windows XP, um Webdesigner acessou o Windows Explorer e selecionou a pasta BACKUP no disco F. Com isso, os arquivos armazenados nessa pasta puderam ser visualizados e, em seguida, o arquivo CONVENIO.DOCX foi deletado, sendo transferindo para a Lixeira. Imediatamente após essa ação, ele verificou que deletou o arquivo errado.
Para retornar à situação anterior, ele pode realizar um dos dois procedimentos descritos a seguir.
I. Executar um atalho de teclado que visa desfazer a última operação feita.
II. Acessar a Lixeira e clicar com o botão direito do mouse sobre o arquivo deletado, o que resultará na exibição de uma pequena janela de diálogo na tela na qual o Webdesigner clica em uma determinada opção.
O atalho de teclado e a opção são, respectivamente,
No Windows 7 BR, a execução do atalho de teclado a seguir
tem a finalidade de
Atualmente, em notebooks com tela de 15 polegadas, microprocessador Intel i7, disco rígido de 1 TB, 8GB de memória DDR3 e sistema operacional Windows 7 BR, a resolução de tela de vídeo utilizada como padrão é
O texto a seguir deve ser utilizado para responder às questões de números 46 a 50.
When the market received the IBM PC bang in the mid-1980, Microsoft, thanks to IBM came up with MS-DOS. The runner up was Digital Research. So, in August 12, 1981 Microsoft starts working at MS-DOS. They started from a clone of QDOS for which they paid $50000, clone renamed as PC-DOS.
But MS-DOS got alive only thanks to COMPAQ who managed to clone the IBM BIOS and so the world got a new player on the computer manufacturers. Thanks to this, Microsoft began licensing its operating system for use on non-IBM PC clones and so MS-DOS (Microsoft Disk Operating System) entered the scene.
In 1985, Microsoft moves to Ireland and there they founded the first international production facility. And there, on November 20 Microsoft released its first retail version of Microsoft Windows, originally a graphical extension for its MS-DOS operating system. In August, Microsoft and IBM partnered in the development of a different operating system called 0S/2. OS/2 was marketed in connection with a new hardware design proprietary to IBM, the PS/2. Shortly afterwards on February 16, 1986, Microsoft relocated to Redmond, Washington. Around one month later, on March 13, the company went public with an IPO, raising US$61 million at US$21.00 per share. By the end of the trading day, the price had risen to US$28.00. In 1987, Microsoft eventually released their first version of OS/2 to OEMS.
The early versions of Windows were often thought of as just graphical user interfaces or desktops, mostly because they were started from MS-DOS and used it for file system services. However even the carliest 16-bit Windows versions already assumed many typical operating system functions, notably having their own executable file format and providing their own device drivers (timer, graphics, printer, mouse, keyboard and sound) for applications. Unlike DOS, Windows allowed users to execute multiple graphical applications at the same time, through co-operative multitasking, something which competitors (like GEM) did not offer. Finally, Windows implemented an elaborate, segment-based, software virtual memory scheme which allowed it to run applications larger than available memory: code segments and resources were swapped in and thrown away when memory became scarce, and data segments moved in memory when a given application had relinquished processor control, typically waiting for user input. Examples include Windows 1.0 (1985) and Windows 2.0 (1987) and its close relative Windows/286.
[Extraído de: http://news.soft32.com/windows-evolution 1629.html]
Segundo o último parágrafo, o Windows permitia a execução de aplicações
O texto a seguir deve ser utilizado para responder às questões de números 46 a 50.
When the market received the IBM PC bang in the mid-1980, Microsoft, thanks to IBM came up with MS-DOS. The runner up was Digital Research. So, in August 12, 1981 Microsoft starts working at MS-DOS. They started from a clone of QDOS for which they paid $50000, clone renamed as PC-DOS.
But MS-DOS got alive only thanks to COMPAQ who managed to clone the IBM BIOS and so the world got a new player on the computer manufacturers. Thanks to this, Microsoft began licensing its operating system for use on non-IBM PC clones and so MS-DOS (Microsoft Disk Operating System) entered the scene.
In 1985, Microsoft moves to Ireland and there they founded the first international production facility. And there, on November 20 Microsoft released its first retail version of Microsoft Windows, originally a graphical extension for its MS-DOS operating system. In August, Microsoft and IBM partnered in the development of a different operating system called 0S/2. OS/2 was marketed in connection with a new hardware design proprietary to IBM, the PS/2. Shortly afterwards on February 16, 1986, Microsoft relocated to Redmond, Washington. Around one month later, on March 13, the company went public with an IPO, raising US$61 million at US$21.00 per share. By the end of the trading day, the price had risen to US$28.00. In 1987, Microsoft eventually released their first version of OS/2 to OEMS.
The early versions of Windows were often thought of as just graphical user interfaces or desktops, mostly because they were started from MS-DOS and used it for file system services. However even the carliest 16-bit Windows versions already assumed many typical operating system functions, notably having their own executable file format and providing their own device drivers (timer, graphics, printer, mouse, keyboard and sound) for applications. Unlike DOS, Windows allowed users to execute multiple graphical applications at the same time, through co-operative multitasking, something which competitors (like GEM) did not offer. Finally, Windows implemented an elaborate, segment-based, software virtual memory scheme which allowed it to run applications larger than available memory: code segments and resources were swapped in and thrown away when memory became scarce, and data segments moved in memory when a given application had relinquished processor control, typically waiting for user input. Examples include Windows 1.0 (1985) and Windows 2.0 (1987) and its close relative Windows/286.
[Extraído de: http://news.soft32.com/windows-evolution 1629.html]
Um termo no texto que apresenta o significado de trocado é:
O texto a seguir deve ser utilizado para responder às questões de números 46 a 50.
When the market received the IBM PC bang in the mid-1980, Microsoft, thanks to IBM came up with MS-DOS. The runner up was Digital Research. So, in August 12, 1981 Microsoft starts working at MS-DOS. They started from a clone of QDOS for which they paid $50000, clone renamed as PC-DOS.
But MS-DOS got alive only thanks to COMPAQ who managed to clone the IBM BIOS and so the world got a new player on the computer manufacturers. Thanks to this, Microsoft began licensing its operating system for use on non-IBM PC clones and so MS-DOS (Microsoft Disk Operating System) entered the scene.
In 1985, Microsoft moves to Ireland and there they founded the first international production facility. And there, on November 20 Microsoft released its first retail version of Microsoft Windows, originally a graphical extension for its MS-DOS operating system. In August, Microsoft and IBM partnered in the development of a different operating system called 0S/2. OS/2 was marketed in connection with a new hardware design proprietary to IBM, the PS/2. Shortly afterwards on February 16, 1986, Microsoft relocated to Redmond, Washington. Around one month later, on March 13, the company went public with an IPO, raising US$61 million at US$21.00 per share. By the end of the trading day, the price had risen to US$28.00. In 1987, Microsoft eventually released their first version of OS/2 to OEMS.
The early versions of Windows were often thought of as just graphical user interfaces or desktops, mostly because they were started from MS-DOS and used it for file system services. However even the carliest 16-bit Windows versions already assumed many typical operating system functions, notably having their own executable file format and providing their own device drivers (timer, graphics, printer, mouse, keyboard and sound) for applications. Unlike DOS, Windows allowed users to execute multiple graphical applications at the same time, through co-operative multitasking, something which competitors (like GEM) did not offer. Finally, Windows implemented an elaborate, segment-based, software virtual memory scheme which allowed it to run applications larger than available memory: code segments and resources were swapped in and thrown away when memory became scarce, and data segments moved in memory when a given application had relinquished processor control, typically waiting for user input. Examples include Windows 1.0 (1985) and Windows 2.0 (1987) and its close relative Windows/286.
[Extraído de: http://news.soft32.com/windows-evolution 1629.html]
Os termos early e allowed, presentes no 4.º parágrafo do texto, têm por antônimos, respectivamente,
O texto a seguir deve ser utilizado para responder às questões de números 46 a 50.
When the market received the IBM PC bang in the mid-1980, Microsoft, thanks to IBM came up with MS-DOS. The runner up was Digital Research. So, in August 12, 1981 Microsoft starts working at MS-DOS. They started from a clone of QDOS for which they paid $50000, clone renamed as PC-DOS.
But MS-DOS got alive only thanks to COMPAQ who managed to clone the IBM BIOS and so the world got a new player on the computer manufacturers. Thanks to this, Microsoft began licensing its operating system for use on non-IBM PC clones and so MS-DOS (Microsoft Disk Operating System) entered the scene.
In 1985, Microsoft moves to Ireland and there they founded the first international production facility. And there, on November 20 Microsoft released its first retail version of Microsoft Windows, originally a graphical extension for its MS-DOS operating system. In August, Microsoft and IBM partnered in the development of a different operating system called 0S/2. OS/2 was marketed in connection with a new hardware design proprietary to IBM, the PS/2. Shortly afterwards on February 16, 1986, Microsoft relocated to Redmond, Washington. Around one month later, on March 13, the company went public with an IPO, raising US$61 million at US$21.00 per share. By the end of the trading day, the price had risen to US$28.00. In 1987, Microsoft eventually released their first version of OS/2 to OEMS.
The early versions of Windows were often thought of as just graphical user interfaces or desktops, mostly because they were started from MS-DOS and used it for file system services. However even the carliest 16-bit Windows versions already assumed many typical operating system functions, notably having their own executable file format and providing their own device drivers (timer, graphics, printer, mouse, keyboard and sound) for applications. Unlike DOS, Windows allowed users to execute multiple graphical applications at the same time, through co-operative multitasking, something which competitors (like GEM) did not offer. Finally, Windows implemented an elaborate, segment-based, software virtual memory scheme which allowed it to run applications larger than available memory: code segments and resources were swapped in and thrown away when memory became scarce, and data segments moved in memory when a given application had relinquished processor control, typically waiting for user input. Examples include Windows 1.0 (1985) and Windows 2.0 (1987) and its close relative Windows/286.
[Extraído de: http://news.soft32.com/windows-evolution 1629.html]
A melhor tradução para o fragmento — ... Microsoft released its first retail version of Microsoft Windows... —, presente no 3.º parágrafo do texto, é:
O texto a seguir deve ser utilizado para responder às questões de números 46 a 50.
When the market received the IBM PC bang in the mid-1980, Microsoft, thanks to IBM came up with MS-DOS. The runner up was Digital Research. So, in August 12, 1981 Microsoft starts working at MS-DOS. They started from a clone of QDOS for which they paid $50000, clone renamed as PC-DOS.
But MS-DOS got alive only thanks to COMPAQ who managed to clone the IBM BIOS and so the world got a new player on the computer manufacturers. Thanks to this, Microsoft began licensing its operating system for use on non-IBM PC clones and so MS-DOS (Microsoft Disk Operating System) entered the scene.
In 1985, Microsoft moves to Ireland and there they founded the first international production facility. And there, on November 20 Microsoft released its first retail version of Microsoft Windows, originally a graphical extension for its MS-DOS operating system. In August, Microsoft and IBM partnered in the development of a different operating system called 0S/2. OS/2 was marketed in connection with a new hardware design proprietary to IBM, the PS/2. Shortly afterwards on February 16, 1986, Microsoft relocated to Redmond, Washington. Around one month later, on March 13, the company went public with an IPO, raising US$61 million at US$21.00 per share. By the end of the trading day, the price had risen to US$28.00. In 1987, Microsoft eventually released their first version of OS/2 to OEMS.
The early versions of Windows were often thought of as just graphical user interfaces or desktops, mostly because they were started from MS-DOS and used it for file system services. However even the carliest 16-bit Windows versions already assumed many typical operating system functions, notably having their own executable file format and providing their own device drivers (timer, graphics, printer, mouse, keyboard and sound) for applications. Unlike DOS, Windows allowed users to execute multiple graphical applications at the same time, through co-operative multitasking, something which competitors (like GEM) did not offer. Finally, Windows implemented an elaborate, segment-based, software virtual memory scheme which allowed it to run applications larger than available memory: code segments and resources were swapped in and thrown away when memory became scarce, and data segments moved in memory when a given application had relinquished processor control, typically waiting for user input. Examples include Windows 1.0 (1985) and Windows 2.0 (1987) and its close relative Windows/286.
[Extraído de: http://news.soft32.com/windows-evolution 1629.html]
De acordo com 2.º parágrafo, a Microsoft começou a licenciar seu sistema operacional
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