Questões de Concurso
Para analista de tecnologia da informação
Foram encontradas 20.327 questões
Resolva questões gratuitamente!
Junte-se a mais de 4 milhões de concurseiros!
As três características são conhecidas, respectivamente, como:
No mundo da cibernética e da segurança em redes e na internet, existem muitas formas de se lidar com a privacidade, e uma consiste em usar uma rede de camada de soquete seguro, que utiliza o protocolo SSL para estabelecer uma conexão criptografada entre o dispositivo do usuário e o servidor, garantindo que os dados transmitidos entre eles estejam seguros e protegidos contra interceptação ou acesso não autorizado, podendo ser implementada de dois modos, via portal ou túnel.
Essa rede é conhecida pelo seguinte termo técnico:
Os identificadores ALFA − BETA − GAMA − DELTA mostrados na figura, correspondem no ciclo PDCA, respectivamente a:
O texto seguinte servirá de base para responder à questão.

Mother Goose and Grimm cartoon, by Mike Peters
O texto seguinte servirá de base para responder à questão.

Mother Goose and Grimm cartoon, by Mike Peters
O texto seguinte servirá de base para responder à questão.

Mother Goose and Grimm cartoon, by Mike Peters
O texto seguinte servirá de base para responder à questão.
Biden administration, in its last days, proposes new protections for Arctic Alaska land

Lakes and connecting streams in the northeastern part of the National Petroleum Reserve in Alaska, June 2014.
Four days before President Joe Biden is set to leave office, his administration recommended that about 3 million more acres in Alaska's western Arctic be protected from development and issued a guideline, effective immediately, requiring additional protections for traditional Native subsistence harvests of fish, caribou and other resources.
The new recommendations and guidance, which apply to the 23-million-acre National Petroleum Reserve in Alaska, run counter to President-elect Donald Trump's expressed plans to expand oil drilling in the Arctic and elsewhere and to overturn Biden administration environmental policies more broadly.
The recommendations for additional land to be protected as part of what are termed "special areas" and the guidance for elevating the importance of subsistence and tribal consultation could be ignored or scrapped by the incoming Trump administration.
The northeastern part of the reserve is the area considered most likely to hold oil and where development has spread in recent years. There is already production in that area, and the most notable production expected in the future is from ConocoPhillips' Willow project. Willow won Biden administration approval in 2023. Production is expected to start by the end of the decade and peak at 180,000 barrels per day; current production from all North Slope fields amounts to less than 470,000 barrels per day.
Like the existing Teshekpuk special area, which holds important habitat for caribou, fish and migratory birds, the village of Nuiqsut is in the general area of the reserve's northeastern corner, where new oil development has occurred. Nuiqsut is so close that oilfield infrastructure can be seen from the village.

Pipelines extend across the landscape outside Nuiqsut, Alaska, May 2019.
"But at the same time, I think we and our partners have also made it abundantly clear that we're going to keep fighting, and keep fighting for protections in the Western Arctic," she said.
(From ROSEN, Yereth. Biden administration, in its last days, proposes new protections for Arctic Alaska land, Alaska Beacon, January 17, 2025. In alaskabeacon.com/2025/01/17/biden-administration-in-its-last-days-pro poses-new-protections-for-arctic-alaska-land/, accessed on February 19th, 2025)
O texto seguinte servirá de base para responder à questão.
Biden administration, in its last days, proposes new protections for Arctic Alaska land

Lakes and connecting streams in the northeastern part of the National Petroleum Reserve in Alaska, June 2014.
Four days before President Joe Biden is set to leave office, his administration recommended that about 3 million more acres in Alaska's western Arctic be protected from development and issued a guideline, effective immediately, requiring additional protections for traditional Native subsistence harvests of fish, caribou and other resources.
The new recommendations and guidance, which apply to the 23-million-acre National Petroleum Reserve in Alaska, run counter to President-elect Donald Trump's expressed plans to expand oil drilling in the Arctic and elsewhere and to overturn Biden administration environmental policies more broadly.
The recommendations for additional land to be protected as part of what are termed "special areas" and the guidance for elevating the importance of subsistence and tribal consultation could be ignored or scrapped by the incoming Trump administration.
The northeastern part of the reserve is the area considered most likely to hold oil and where development has spread in recent years. There is already production in that area, and the most notable production expected in the future is from ConocoPhillips' Willow project. Willow won Biden administration approval in 2023. Production is expected to start by the end of the decade and peak at 180,000 barrels per day; current production from all North Slope fields amounts to less than 470,000 barrels per day.
Like the existing Teshekpuk special area, which holds important habitat for caribou, fish and migratory birds, the village of Nuiqsut is in the general area of the reserve's northeastern corner, where new oil development has occurred. Nuiqsut is so close that oilfield infrastructure can be seen from the village.

Pipelines extend across the landscape outside Nuiqsut, Alaska, May 2019.
"But at the same time, I think we and our partners have also made it abundantly clear that we're going to keep fighting, and keep fighting for protections in the Western Arctic," she said.
(From ROSEN, Yereth. Biden administration, in its last days, proposes new protections for Arctic Alaska land, Alaska Beacon, January 17, 2025. In alaskabeacon.com/2025/01/17/biden-administration-in-its-last-days-pro poses-new-protections-for-arctic-alaska-land/, accessed on February 19th, 2025)
O texto seguinte servirá de base para responder à questão.
Biden administration, in its last days, proposes new protections for Arctic Alaska land

Lakes and connecting streams in the northeastern part of the National Petroleum Reserve in Alaska, June 2014.
Four days before President Joe Biden is set to leave office, his administration recommended that about 3 million more acres in Alaska's western Arctic be protected from development and issued a guideline, effective immediately, requiring additional protections for traditional Native subsistence harvests of fish, caribou and other resources.
The new recommendations and guidance, which apply to the 23-million-acre National Petroleum Reserve in Alaska, run counter to President-elect Donald Trump's expressed plans to expand oil drilling in the Arctic and elsewhere and to overturn Biden administration environmental policies more broadly.
The recommendations for additional land to be protected as part of what are termed "special areas" and the guidance for elevating the importance of subsistence and tribal consultation could be ignored or scrapped by the incoming Trump administration.
The northeastern part of the reserve is the area considered most likely to hold oil and where development has spread in recent years. There is already production in that area, and the most notable production expected in the future is from ConocoPhillips' Willow project. Willow won Biden administration approval in 2023. Production is expected to start by the end of the decade and peak at 180,000 barrels per day; current production from all North Slope fields amounts to less than 470,000 barrels per day.
Like the existing Teshekpuk special area, which holds important habitat for caribou, fish and migratory birds, the village of Nuiqsut is in the general area of the reserve's northeastern corner, where new oil development has occurred. Nuiqsut is so close that oilfield infrastructure can be seen from the village.

Pipelines extend across the landscape outside Nuiqsut, Alaska, May 2019.
"But at the same time, I think we and our partners have also made it abundantly clear that we're going to keep fighting, and keep fighting for protections in the Western Arctic," she said.
(From ROSEN, Yereth. Biden administration, in its last days, proposes new protections for Arctic Alaska land, Alaska Beacon, January 17, 2025. In alaskabeacon.com/2025/01/17/biden-administration-in-its-last-days-pro poses-new-protections-for-arctic-alaska-land/, accessed on February 19th, 2025)
O texto seguinte servirá de base para responder à questão.
Biden administration, in its last days, proposes new protections for Arctic Alaska land

Lakes and connecting streams in the northeastern part of the National Petroleum Reserve in Alaska, June 2014.
Four days before President Joe Biden is set to leave office, his administration recommended that about 3 million more acres in Alaska's western Arctic be protected from development and issued a guideline, effective immediately, requiring additional protections for traditional Native subsistence harvests of fish, caribou and other resources.
The new recommendations and guidance, which apply to the 23-million-acre National Petroleum Reserve in Alaska, run counter to President-elect Donald Trump's expressed plans to expand oil drilling in the Arctic and elsewhere and to overturn Biden administration environmental policies more broadly.
The recommendations for additional land to be protected as part of what are termed "special areas" and the guidance for elevating the importance of subsistence and tribal consultation could be ignored or scrapped by the incoming Trump administration.
The northeastern part of the reserve is the area considered most likely to hold oil and where development has spread in recent years. There is already production in that area, and the most notable production expected in the future is from ConocoPhillips' Willow project. Willow won Biden administration approval in 2023. Production is expected to start by the end of the decade and peak at 180,000 barrels per day; current production from all North Slope fields amounts to less than 470,000 barrels per day.
Like the existing Teshekpuk special area, which holds important habitat for caribou, fish and migratory birds, the village of Nuiqsut is in the general area of the reserve's northeastern corner, where new oil development has occurred. Nuiqsut is so close that oilfield infrastructure can be seen from the village.

Pipelines extend across the landscape outside Nuiqsut, Alaska, May 2019.
"But at the same time, I think we and our partners have also made it abundantly clear that we're going to keep fighting, and keep fighting for protections in the Western Arctic," she said.
(From ROSEN, Yereth. Biden administration, in its last days, proposes new protections for Arctic Alaska land, Alaska Beacon, January 17, 2025. In alaskabeacon.com/2025/01/17/biden-administration-in-its-last-days-pro poses-new-protections-for-arctic-alaska-land/, accessed on February 19th, 2025)
O texto seguinte servirá de base para responder à questão.
Biden administration, in its last days, proposes new protections for Arctic Alaska land

Lakes and connecting streams in the northeastern part of the National Petroleum Reserve in Alaska, June 2014.
Four days before President Joe Biden is set to leave office, his administration recommended that about 3 million more acres in Alaska's western Arctic be protected from development and issued a guideline, effective immediately, requiring additional protections for traditional Native subsistence harvests of fish, caribou and other resources.
The new recommendations and guidance, which apply to the 23-million-acre National Petroleum Reserve in Alaska, run counter to President-elect Donald Trump's expressed plans to expand oil drilling in the Arctic and elsewhere and to overturn Biden administration environmental policies more broadly.
The recommendations for additional land to be protected as part of what are termed "special areas" and the guidance for elevating the importance of subsistence and tribal consultation could be ignored or scrapped by the incoming Trump administration.
The northeastern part of the reserve is the area considered most likely to hold oil and where development has spread in recent years. There is already production in that area, and the most notable production expected in the future is from ConocoPhillips' Willow project. Willow won Biden administration approval in 2023. Production is expected to start by the end of the decade and peak at 180,000 barrels per day; current production from all North Slope fields amounts to less than 470,000 barrels per day.
Like the existing Teshekpuk special area, which holds important habitat for caribou, fish and migratory birds, the village of Nuiqsut is in the general area of the reserve's northeastern corner, where new oil development has occurred. Nuiqsut is so close that oilfield infrastructure can be seen from the village.

Pipelines extend across the landscape outside Nuiqsut, Alaska, May 2019.
"But at the same time, I think we and our partners have also made it abundantly clear that we're going to keep fighting, and keep fighting for protections in the Western Arctic," she said.
(From ROSEN, Yereth. Biden administration, in its last days, proposes new protections for Arctic Alaska land, Alaska Beacon, January 17, 2025. In alaskabeacon.com/2025/01/17/biden-administration-in-its-last-days-pro poses-new-protections-for-arctic-alaska-land/, accessed on February 19th, 2025)
O texto seguinte servirá de base para responder à questão.
Biden administration, in its last days, proposes new protections for Arctic Alaska land

Lakes and connecting streams in the northeastern part of the National Petroleum Reserve in Alaska, June 2014.
Four days before President Joe Biden is set to leave office, his administration recommended that about 3 million more acres in Alaska's western Arctic be protected from development and issued a guideline, effective immediately, requiring additional protections for traditional Native subsistence harvests of fish, caribou and other resources.
The new recommendations and guidance, which apply to the 23-million-acre National Petroleum Reserve in Alaska, run counter to President-elect Donald Trump's expressed plans to expand oil drilling in the Arctic and elsewhere and to overturn Biden administration environmental policies more broadly.
The recommendations for additional land to be protected as part of what are termed "special areas" and the guidance for elevating the importance of subsistence and tribal consultation could be ignored or scrapped by the incoming Trump administration.
The northeastern part of the reserve is the area considered most likely to hold oil and where development has spread in recent years. There is already production in that area, and the most notable production expected in the future is from ConocoPhillips' Willow project. Willow won Biden administration approval in 2023. Production is expected to start by the end of the decade and peak at 180,000 barrels per day; current production from all North Slope fields amounts to less than 470,000 barrels per day.
Like the existing Teshekpuk special area, which holds important habitat for caribou, fish and migratory birds, the village of Nuiqsut is in the general area of the reserve's northeastern corner, where new oil development has occurred. Nuiqsut is so close that oilfield infrastructure can be seen from the village.

Pipelines extend across the landscape outside Nuiqsut, Alaska, May 2019.
"But at the same time, I think we and our partners have also made it abundantly clear that we're going to keep fighting, and keep fighting for protections in the Western Arctic," she said.
(From ROSEN, Yereth. Biden administration, in its last days, proposes new protections for Arctic Alaska land, Alaska Beacon, January 17, 2025. In alaskabeacon.com/2025/01/17/biden-administration-in-its-last-days-pro poses-new-protections-for-arctic-alaska-land/, accessed on February 19th, 2025)
O texto seguinte servirá de base para responder à questão.
Fadiga visual: a visão na era do excesso de telas
Em uma era em que as telas dominam nossa vida cotidiana, uma epidemia silenciosa se espalha pelo mundo.
A fadiga ocular digital, antes considerada uma condição marginal entre as preocupações com a saúde ocupacional, tornou-se um grande problema de saúde pública, que afeta milhões de pessoas ao redor do mundo.
À medida que nossa dependência de dispositivos digitais para trabalho, educação e interação social só aumenta, há mais riscos à saúde de nossos olhos.
Estudos recentes apresentam um quadro sombrio. Até cinquenta por cento dos usuários de computador desenvolvem a chamada fadiga ocular digital.
Essa condição, caracterizada por uma variedade de sintomas oculares e visuais, como secura, lacrimejamento, coceira, queimação, visão turva ou até dupla, não é apenas um incômodo.
Ela indica problemas crônicos que afetam significativamente a qualidade de vida e a produtividade de um indivíduo.
A pandemia da covid-19 exacerbou essa tendência. Afinal, os confinamentos e as medidas de distanciamento social aumentaram o tempo de tela em uma escala sem precedentes.
Um aumento acentuado no uso de dispositivos digitais durante esse período está correlacionado a um crescimento das doenças na superfície ocular, distúrbios visuais e fadiga ocular digital.
O que acontece com nossos olhos quando olhamos para telas por longos períodos?
A resposta está na biologia complexa do nosso sistema visual. Ao focar em telas digitais, nossa taxa de piscadas diminui e nossos olhos se esforçam demais para focar em objetos próximos por longos períodos.
Piscar menos e manter o foco próximo desencadeia uma série de problemas oculares, desde irritação leve até ressecamento crônico.
Os sintomas da fadiga ocular digital são diversos e muitas vezes insidiosos. Eles variam desde sinais imediatamente perceptíveis, como fadiga ocular, secura e visão turva, até pistas mais sutis, como dores de cabeça e no pescoço.
Embora geralmente temporários, esses sintomas podem se tornar persistentes e debilitantes, se não forem tratados.
Ao contrário da crença popular, a luz azul emitida pelas telas não é a principal causa da vista cansada.
Embora a luz azul possa contribuir para a fadiga ocular e interromper os padrões de sono, não há evidências conclusivas de que ela cause danos oculares permanentes.
Os verdadeiros vilões são a ergonomia ruim, o trabalho por um tempo prolongado com foco próximo e a redução das piscadas.
Como podemos proteger a visão neste mundo centrado nas telas?
A solução está em uma abordagem multifacetada, que combina mudanças comportamentais, ajustes ambientais e, quando necessário, intervenções médicas.
https://www.bbc.com/portuguese/articles/cly569nwr1no.adaptado
Os verbos destacados, nesta frase, comportam-se, respectivamente, como verbos:
I.Eliminação - Durante essa etapa, o ETL identifica os dados duplicados e os remove de suas origens, de forma que possa transportar somente os dados limpos para o destino. Os dados podem vir de fontes estruturadas e não estruturadas, incluindo documentos, e-mails, aplicações de negócios, bancos de dados, equipamentos, sensores, terceiros e muito mais.
II.Transformação - Como os dados extraídos são brutos em sua forma original, eles precisam ser mapeados e transformados para prepará-los para o armazenamento de dados eventual. No processo de transformação, o ETL valida, autentica, deduplica e/ou agrega os dados de formas que tornam os dados resultantes confiáveis e consultáveis.
III.Limpeza - Durante essa etapa, o ETL limpa os dados transformados para o armazenamento otimizado no destino. Esta etapa pode implicar o carregamento inicial de todos os dados de origem ou pode ser o carregamento de alterações incrementais nos dados de origem.
É CORRETO o que se afirma em:
Avalie as afirmativas quanto ao Aprendizado Não Supervisionado:
I.Para redução de dimensionalidade pode ser utilizada a técnica de Análise de componentes principais (PCA, Principal Component Analysis)
II.O algoritmo de agrupamento K-Means divide um conjunto de dados em k grupos distintos
III.Agrupamento Hierárquico produz uma visualização em forma de árvore hierárquica de clusters (ou grupos), chamada dendrograma
IV.Uma regra de associação é um método baseado em regras para encontrar relacionamentos entre variáveis em um determinado conjunto de dados.
Estão corretas as afirmativas:
I.Remover todas as linhas com valores faltantes.
II.Substituir valores faltantes pela média ou mediana.
III.Utilizar algoritmos que suportam valores faltantes.
Assinale a alternativa correta:
I.Azimutal: Quando a superfície de projeção é um plano, a representação é feita trançando-se um plano tangente ou secante a um ponto da superfície terrestre.
II.Cônica: Quando a superfície de projeção é um cone, a representação é feita imaginando-se um cone envolvendo a superfície terrestre que é em seguida desenrolado.
III.Hiperbólica: Quando a superfície de projeção é uma hipérbole, a representação é feita imaginando-se um plano secante representando a superfície terrestre.
IV.Unisuperficial: Essa projeção cartográfica se dá pelo emprego de uma superfície de projeção adaptativa com o objetivo de aumentar o contato com a superfície de referência a fim de reduzir as deformações.
É CORRETO o que se afirma em:
Scrum é um método ágil de gestão de projetos, com relação aos seus pilares, analise as assertivas e identifique as corretas:
I.Transparência: todo o processo deve estar visível a todos os envolvidos. A transparência deve ser refletida, no ambiente, nas pessoas e nos processos.
II.Adaptação: Caso a inspeção detecte algum processo que precise ser ajustado ou melhorado, as adaptações deverão ser feitas o mais rápido possível. O quanto antes as mudanças sejam feitas, antes o novo processo proposto é testado e validado.
III.Agilidade: Abordagem que valoriza a melhoria contínua da gestão de projetos por meio de lançamentos pequenos e frequentes com vistas a se adaptar e responder rapidamente a mudanças, desafios e oportunidades.
IV.Inspeção: o processo em si deve ser inspecionado regularmente na busca por anomalias e/ou oportunidades de melhorias.
É CORRETO o que se afirma em: