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Em janeiro de 2022, a empresa Adobe anunciou uma atualização de segurança para seu popular produto Adobe Acrobat Reader. A atualização corrige vulnerabilidades de segurança, dentre as quais uma é explorada quando se realiza a exportação do conteúdo de arquivos PDF para o formato do Microsoft Office. O problema se manifesta quando um arquivo PDF, criado de forma maliciosa, ao ser processado pelo Adobe Acrobat Reader para a exportação supracitada, permite a execução de um código arbitrário no contexto do usuário executando a aplicação (Acrobat Reader). Um ataque que explora esta vulnerabilidade pode executar um código malicioso, previamente inserido no PDF, objetivando a escalada de privilégios no sistema operacional durante a execução para realizar acesso privilegiado aos recursos do computador. Com base no exposto neste enunciado, assinale a alternativa que melhor representa este tipo de ataque.
Em um hospital, todas as estações de trabalho da área administrativa são do tipo diskless. Ao ligar estes computadores, uma imagem do seu sistema operacional será carregada da rede a partir de um servidor de imagem de boot. Para receber uma imagem do sistema operacional, as estações de trabalho precisam suportar protocolos para esse propósito. Assinale a alternativa abaixo que melhor representa esta combinação de protocolos.
Considerando os elementos de rede, Tranceiver - Repeater - Bridge - Hub, nesta ordem, assinale a alternativa que representa as camadas do modelo OSI em que estes elementos têm seu papel clássico.
Considerando os elementos físicos de rede e o conceito de segmentação de rede, analise as assertivas abaixo e assinale V, se verdadeiras, ou F, se falsas. Lx significa camada x do modelo OSI.
( ) Bridges conectam múltiplos segmentos L2 para formar um único segmento L1.
( ) Todas as estações de trabalho ligadas a um hub estão no mesmo segmento L2 de rede.
( ) Todas as estações de trabalho ligadas a um swtich podem pertencer ao mesmo segmento L1 de rede.
( ) Todas as estações de trabalho ligadas a um switch podem pertencer ao mesmo segmento L3 de rede.
A ordem correta de preenchimento dos parênteses, de cima para baixo, é:
O protocolo de gerenciamento CMIP utiliza os serviços do protocolo ACSE (Association Control Service Element) para realizar operações entre gerentes e agentes de gerenciamento OSI. Em qual camada do modelo OSI se encontra o protocolo ACSE?
A versão 2 do protocolo SNMP introduziu uma nova operação para otimizar a recuperação de grandes blocos de dados de agentes de gerenciamento, o que na versão 1 era feito de forma ineficiente. Esta operação é:
Em ambos os protocolos de gerenciamento de redes, CMIP (OSI) e SNMP (TCP/IP), a MIB é uma base de informações de gerenciamento que armazena informações sobre os objetos gerenciados. Neste contexto, o GDMO (Guidelines for Definition of Managed Objects) define as regras para especificar os objetos gerenciados que serão acessados via:
Sobre as versões 1, 2 e 3 do protocolo de gerenciamento de redes SNMP, analise as assertivas abaixo:
I. O conceito de proxy-agent foi introduzido na versão 3 do protocolo.
II. A versão 2 do protocolo introduziu a opção de variáveis contadores de 64 bits, enquanto a versão 1 suporta apenas contadores de 32 bits.
III. Nas versões 1 e 2 do SNMP, a comunicação entre gerente e agentes segue uma abordagem client-server, enquanto na versão 3 segue-se uma abordagem peer-to-peer.
Quais estão corretas?
Para criar um sistema de arquivos, é necessário considerar o tamanho e o número de arquivos estimados a serem armazenados. Dentre os tipos de sistemas de arquivos suportados pelo AIX está o JFS (Journaled File System), cujo tamanho máximo depende dos parâmetros:
No sistema operacional AIX, o comando crfs é usado para:
No sistema operacional AIX, o valor padrão (default) em bytes para o tamanho de bloco no sistema de arquivos JFS2 é:
Nos sistemas operacionais da família UNIX, um processo P se encontra no estado Zombie quando:
Como é chamado, no navegador Google Chrome, o arquivo criado por um site visitado pelo usuário e que tem o objetivo de facilitar a experiência on-line salvando dados de navegação?
A função __________, do Microsoft Excel 2010, arredonda um número para uma quantidade especificada de dígitos decimais.
Assinale a alternativa que preenche corretamente a lacuna do trecho acima.
Assinale a alternativa que apresenta uma ação que pode ser utilizada, no Microsoft Word 2010, para selecionar uma palavra no corpo de um documento.
Analise as assertivas abaixo, verificando se fazem parte da Barra de Tarefas do Microsoft Windows XP:
I. Área de Notificação.
II. Barra de Inicialização Rápida.
III. Menu Iniciar.
Quais estão corretas?
Instrução: As questões de números 01 a 05 referem-se ao texto abaixo.
...
A importância da saúde mental para o bem-estar
..
01--------A saúde mental é um importante fator que possibilita o ajuste necessário para lidar com as
02--emoções positivas e negativas. Investir em estratégias que possibilitem o equilíbrio das funções
03--mentais é essencial para um convívio social mais saudável.
04--------Além de ser determinante para a estabilidade física, a saúde mental está relacionada à
05--qualidade da interação individual e coletiva. No cenário atual, buscar alternativas que
06--possibilitem a harmonia nessas relações é uma urgente necessidade.
07--------A Organização Mundial de Saúde (OMS) aponta que o conceito de saúde é bem mais
08--abrangente que a simples ausência de doença: é um completo estado de bem-estar físico, mental
09--e social e, dessa forma, merece atenção em todas as suas vertentes.
10--------Assim como a física, a saúde mental é uma parte integrante e complementar à manutenção
11--das funções orgânicas. Nesse contexto, a promoção da saúde mental é essencial para que o
12--indivíduo tenha a capacidade necessária de executar suas habilidades pessoais e profissionais.
13--------Sumariamente, o bom estado mental confere ao homem o amplo exercício de seus direitos
14--sociais e de cidadania. Assegura ainda as condições de interação social para uma convivência
15--familiar mais harmônica e segura.
16--------Desse modo, entender a importância da estabilidade mental e sua intensa relação com o
17--bem-estar é fundamental. Possibilita, assim, a compreensão da importância de utilizar a
18--capacidade individual para a percepção de valores e virtudes inerentes à construção da
19--coletividade.
20--------Como parte importante das medidas de prevenção às doenças mentais, a atenção primária a
21--alguns hábitos do cotidiano precisa ser considerada. Muito provavelmente ocorrerá um aumento
22--expressivo do número de doentes desta natureza – e isso em caráter global.
23--------Fatores como o envelhecimento da população, a acentuação dos problemas sociais e
24--econômicos e os desajustes familiares concorrem para o surgimento de desequilíbrios
25--emocionais. Em geral, eles evoluem para transtornos mentais e físicos cada vez mais
26--desafiadores.
27--------Nesse contexto, destacamos os hábitos mais prejudiciais à saúde mental: pensamentos
28--negativos, vício em jogos, álcool e drogas e uso excessivo de Internet.
...
(Disponível em: https://hospitalsantamonica.com.br/a-saude-mental-e-a-importancia-dela-na-vida-daspessoas/ – texto adaptado especialmente para esta prova).
Assinale a frase que está com pontuação INCORRETA.
The Rise of the “Bike Bus” Movement
01 On Earth Day* 2022, Sam Balto, a physical education teacher in Portland, convinced a few
02 dozen parents to send their kids to school on their bikes and posted the first in a series of videos
03 that turned his “bike bus” into a viral sensation. Balto has continued documenting his weekly
04 bike buses with joyous videos that show students rolling to school while he blasts music from an
05 eclectic collection of artists, including AC/DC, Metallica, and OneRepublic. Over time, these
06 boisterous bike buses have grown to more than 150 kids. “The more these kids practice riding
07 bikes, the more confident they become. And now they want to keep riding on non-bike bus days,
08 and even on rainy days!” said Balto.
09 Balto’s bike bus is much more than a fad. His TikTok and Twitter videos have raked in
10 millions of views, inspiring similar initiatives in New York, New Jersey, Florida, Utah, Ohio, and
11 Texas. Bike buses previously existed in European cities such as Barcelona and London, but new
12 ones in cities like Cape Town are now joining the trend. Nancy Pullen-Seufert, the director of the
13 National Center for Safe Routes to School, said biking and walking to school have myriad benefits,
14 including “improving air quality, improving safety for walkers and bicyclists, increasing physical
15 activity, and making it easier for school buses and others who can’t actively travel to school to
16 arrive to school on time.”
17 Balto has also triggered real political change by working with lawmakers to pass a so-called
18 “Bike Bus Bill”, that was signed into law by Oregon Governor Tina Kotek in August. “The bill
19 brings flexibility so school districts can now use student transportation funds, which were
20 previously only for school buses, to pay for crossing guards or adults to lead walking school buses
21 or bike buses. It’s awesome.” Balto said. And he is not the only bike bus leader driving positive
22 change in Oregon… Last year, Megan Ramey, who has been organizing a bike bus ___ 2020, was
23 named the Safe Routes to School Manager at Hood River County School District and since then,
24 she has secured nearly $11 million in funding to make it safer for kids to walk and bike to school.
25 “I feel like I'm in a cash-grabbing machine. We just got $7 million to create an off-road trail to
26 the high school. This means kids will be able to bike to high school on a green trail instead of a
27 car-centered road,” said Ramey.
28 Nearly 90% of kids walked to school in 1969. Half a century later, in 2017, that number
29 had fallen to just 10%. That year, a third of students took the school bus and more than half
30 were driven in a private vehicle. This has led to more pollution, with researchers finding that
31 toxic car fumes have an adverse effect on attention, reasoning, and academic performance
32 among school children. In New York, the Open Schools Program has helped increase biking and
33 walking in the 65 schools that restricted traffic during drop-off and pick-up times this year, said
34 Sabina Sethi Unni, who works at Open Plans, a non-profit that supports the shift to walkable
35 cities. “This program makes kids more comfortable with walking and biking at a young age. When
36 they get older, they will be cyclists instead of car users,” said Unni.
(Available in: https://www.distilled.earth/p/the-rise-of-the-bike-bus-movement – text especially adapted for this test).
*Earth Day: a day in April designated for promoting concern for the environment (Merriam-Webster).
Mark the sentence below that shows the adapted excerpt “Balto has triggered real political change (…)” (l. 17) correctly rewritten in the passive voice, in the same verb tense.
The Rise of the “Bike Bus” Movement
01 On Earth Day* 2022, Sam Balto, a physical education teacher in Portland, convinced a few
02 dozen parents to send their kids to school on their bikes and posted the first in a series of videos
03 that turned his “bike bus” into a viral sensation. Balto has continued documenting his weekly
04 bike buses with joyous videos that show students rolling to school while he blasts music from an
05 eclectic collection of artists, including AC/DC, Metallica, and OneRepublic. Over time, these
06 boisterous bike buses have grown to more than 150 kids. “The more these kids practice riding
07 bikes, the more confident they become. And now they want to keep riding on non-bike bus days,
08 and even on rainy days!” said Balto.
09 Balto’s bike bus is much more than a fad. His TikTok and Twitter videos have raked in
10 millions of views, inspiring similar initiatives in New York, New Jersey, Florida, Utah, Ohio, and
11 Texas. Bike buses previously existed in European cities such as Barcelona and London, but new
12 ones in cities like Cape Town are now joining the trend. Nancy Pullen-Seufert, the director of the
13 National Center for Safe Routes to School, said biking and walking to school have myriad benefits,
14 including “improving air quality, improving safety for walkers and bicyclists, increasing physical
15 activity, and making it easier for school buses and others who can’t actively travel to school to
16 arrive to school on time.”
17 Balto has also triggered real political change by working with lawmakers to pass a so-called
18 “Bike Bus Bill”, that was signed into law by Oregon Governor Tina Kotek in August. “The bill
19 brings flexibility so school districts can now use student transportation funds, which were
20 previously only for school buses, to pay for crossing guards or adults to lead walking school buses
21 or bike buses. It’s awesome.” Balto said. And he is not the only bike bus leader driving positive
22 change in Oregon… Last year, Megan Ramey, who has been organizing a bike bus ___ 2020, was
23 named the Safe Routes to School Manager at Hood River County School District and since then,
24 she has secured nearly $11 million in funding to make it safer for kids to walk and bike to school.
25 “I feel like I'm in a cash-grabbing machine. We just got $7 million to create an off-road trail to
26 the high school. This means kids will be able to bike to high school on a green trail instead of a
27 car-centered road,” said Ramey.
28 Nearly 90% of kids walked to school in 1969. Half a century later, in 2017, that number
29 had fallen to just 10%. That year, a third of students took the school bus and more than half
30 were driven in a private vehicle. This has led to more pollution, with researchers finding that
31 toxic car fumes have an adverse effect on attention, reasoning, and academic performance
32 among school children. In New York, the Open Schools Program has helped increase biking and
33 walking in the 65 schools that restricted traffic during drop-off and pick-up times this year, said
34 Sabina Sethi Unni, who works at Open Plans, a non-profit that supports the shift to walkable
35 cities. “This program makes kids more comfortable with walking and biking at a young age. When
36 they get older, they will be cyclists instead of car users,” said Unni.
(Available in: https://www.distilled.earth/p/the-rise-of-the-bike-bus-movement – text especially adapted for this test).
*Earth Day: a day in April designated for promoting concern for the environment (Merriam-Webster).
The word that correctly completes the gap in line 22 is:
The Rise of the “Bike Bus” Movement
01 On Earth Day* 2022, Sam Balto, a physical education teacher in Portland, convinced a few
02 dozen parents to send their kids to school on their bikes and posted the first in a series of videos
03 that turned his “bike bus” into a viral sensation. Balto has continued documenting his weekly
04 bike buses with joyous videos that show students rolling to school while he blasts music from an
05 eclectic collection of artists, including AC/DC, Metallica, and OneRepublic. Over time, these
06 boisterous bike buses have grown to more than 150 kids. “The more these kids practice riding
07 bikes, the more confident they become. And now they want to keep riding on non-bike bus days,
08 and even on rainy days!” said Balto.
09 Balto’s bike bus is much more than a fad. His TikTok and Twitter videos have raked in
10 millions of views, inspiring similar initiatives in New York, New Jersey, Florida, Utah, Ohio, and
11 Texas. Bike buses previously existed in European cities such as Barcelona and London, but new
12 ones in cities like Cape Town are now joining the trend. Nancy Pullen-Seufert, the director of the
13 National Center for Safe Routes to School, said biking and walking to school have myriad benefits,
14 including “improving air quality, improving safety for walkers and bicyclists, increasing physical
15 activity, and making it easier for school buses and others who can’t actively travel to school to
16 arrive to school on time.”
17 Balto has also triggered real political change by working with lawmakers to pass a so-called
18 “Bike Bus Bill”, that was signed into law by Oregon Governor Tina Kotek in August. “The bill
19 brings flexibility so school districts can now use student transportation funds, which were
20 previously only for school buses, to pay for crossing guards or adults to lead walking school buses
21 or bike buses. It’s awesome.” Balto said. And he is not the only bike bus leader driving positive
22 change in Oregon… Last year, Megan Ramey, who has been organizing a bike bus ___ 2020, was
23 named the Safe Routes to School Manager at Hood River County School District and since then,
24 she has secured nearly $11 million in funding to make it safer for kids to walk and bike to school.
25 “I feel like I'm in a cash-grabbing machine. We just got $7 million to create an off-road trail to
26 the high school. This means kids will be able to bike to high school on a green trail instead of a
27 car-centered road,” said Ramey.
28 Nearly 90% of kids walked to school in 1969. Half a century later, in 2017, that number
29 had fallen to just 10%. That year, a third of students took the school bus and more than half
30 were driven in a private vehicle. This has led to more pollution, with researchers finding that
31 toxic car fumes have an adverse effect on attention, reasoning, and academic performance
32 among school children. In New York, the Open Schools Program has helped increase biking and
33 walking in the 65 schools that restricted traffic during drop-off and pick-up times this year, said
34 Sabina Sethi Unni, who works at Open Plans, a non-profit that supports the shift to walkable
35 cities. “This program makes kids more comfortable with walking and biking at a young age. When
36 they get older, they will be cyclists instead of car users,” said Unni.
(Available in: https://www.distilled.earth/p/the-rise-of-the-bike-bus-movement – text especially adapted for this test).
*Earth Day: a day in April designated for promoting concern for the environment (Merriam-Webster).
Which of the following statements about the article is INCORRECT?
Conheça nossos planos