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Ano: 2023
Banca:
FUVEST
Órgão:
USP
Prova:
FUVEST - 2023 - USP - Analista de Sistemas (Especialidade: Conectividade) |
Q2277757
Inglês
Texto associado
Quantum breakthrough could revolutionise computing
Computer scientists have been trying to make an effective
quantum computer for more than 20 years. Firms such as
Google, IBM and Microsoft have developed simple machines.
But, according to Prof. Winfried Hensinger, who led the research
at Sussex University, the new development paves the way for
systems that can solve complex real world problems that the best
computers we have today are incapable of.
"Right now we have quantum computers with very simple
microchips," he said. "What we have achieved here is the ability
to realise extremely powerful quantum computers capable of
solving some of the most important problems for industries and
society."
Currently, computers solve problems in a simple linear way,
one calculation at a time. In the quantum realm, particles can be
in two places at the same time and researchers want to harness
this property to develop computers that can do multiple
calculations all at the same time.
Quantum particles can also be millions of miles apart and be
strangely connected, mirroring each other's actions
instantaneously. Again, that could also be used to develop much
more powerful computers.
One stumbling block has been the need to transfer quantum
information between chips quickly and reliably: the information
degrades, and errors are introduced.
But Prof. Hensinger's team has made a breakthrough,
published in the journal Nature Communications, which may
have overcome that obstacle.
The team developed a system able to transport information
from one chip to another with a reliability of 99.999993% at
record speeds. That, say the researchers, shows that in principle
chips could be slotted together to make a more powerful
quantum computer.
GHOSH, Pallab. Quantum breakthrough could revolutionise computing. BBС
News (online).08 Fev. 2023 (adaptado)..
De acordo como texto, a vantagem dos computadores quânticos é
Ano: 2023
Banca:
FUVEST
Órgão:
USP
Prova:
FUVEST - 2023 - USP - Analista de Sistemas (Especialidade: Conectividade) |
Q2277756
Inglês
Texto associado
Quantum breakthrough could revolutionise computing
Computer scientists have been trying to make an effective
quantum computer for more than 20 years. Firms such as
Google, IBM and Microsoft have developed simple machines.
But, according to Prof. Winfried Hensinger, who led the research
at Sussex University, the new development paves the way for
systems that can solve complex real world problems that the best
computers we have today are incapable of.
"Right now we have quantum computers with very simple
microchips," he said. "What we have achieved here is the ability
to realise extremely powerful quantum computers capable of
solving some of the most important problems for industries and
society."
Currently, computers solve problems in a simple linear way,
one calculation at a time. In the quantum realm, particles can be
in two places at the same time and researchers want to harness
this property to develop computers that can do multiple
calculations all at the same time.
Quantum particles can also be millions of miles apart and be
strangely connected, mirroring each other's actions
instantaneously. Again, that could also be used to develop much
more powerful computers.
One stumbling block has been the need to transfer quantum
information between chips quickly and reliably: the information
degrades, and errors are introduced.
But Prof. Hensinger's team has made a breakthrough,
published in the journal Nature Communications, which may
have overcome that obstacle.
The team developed a system able to transport information
from one chip to another with a reliability of 99.999993% at
record speeds. That, say the researchers, shows that in principle
chips could be slotted together to make a more powerful
quantum computer.
GHOSH, Pallab. Quantum breakthrough could revolutionise computing. BBС
News (online).08 Fev. 2023 (adaptado)..
O verbo modal "could" (quarto parágrafo) tem efeito de
Ano: 2023
Banca:
FUVEST
Órgão:
USP
Prova:
FUVEST - 2023 - USP - Analista de Sistemas (Especialidade: Conectividade) |
Q2277755
Inglês
Texto associado
Quantum breakthrough could revolutionise computing
Computer scientists have been trying to make an effective
quantum computer for more than 20 years. Firms such as
Google, IBM and Microsoft have developed simple machines.
But, according to Prof. Winfried Hensinger, who led the research
at Sussex University, the new development paves the way for
systems that can solve complex real world problems that the best
computers we have today are incapable of.
"Right now we have quantum computers with very simple
microchips," he said. "What we have achieved here is the ability
to realise extremely powerful quantum computers capable of
solving some of the most important problems for industries and
society."
Currently, computers solve problems in a simple linear way,
one calculation at a time. In the quantum realm, particles can be
in two places at the same time and researchers want to harness
this property to develop computers that can do multiple
calculations all at the same time.
Quantum particles can also be millions of miles apart and be
strangely connected, mirroring each other's actions
instantaneously. Again, that could also be used to develop much
more powerful computers.
One stumbling block has been the need to transfer quantum
information between chips quickly and reliably: the information
degrades, and errors are introduced.
But Prof. Hensinger's team has made a breakthrough,
published in the journal Nature Communications, which may
have overcome that obstacle.
The team developed a system able to transport information
from one chip to another with a reliability of 99.999993% at
record speeds. That, say the researchers, shows that in principle
chips could be slotted together to make a more powerful
quantum computer.
GHOSH, Pallab. Quantum breakthrough could revolutionise computing. BBС
News (online).08 Fev. 2023 (adaptado)..
A expressão idiomática "paves the way" (primeiro parágrafo)
pode ser traduzida como
Ano: 2023
Banca:
FUVEST
Órgão:
USP
Prova:
FUVEST - 2023 - USP - Analista de Sistemas (Especialidade: Conectividade) |
Q2277754
Inglês
Texto associado
Generic catastrophic poverty when selfish investors exploit a
degradable common resource
Game theory deals with situations in which a number of
agents compete with each other, with each participant trying to
maximize his or her own profit individually. One speaks of a
"Nash equilibrium" if players cannot increase their returns
further. The "Tragedy of the Commons" is a game theoretical
scenario in which the actors do not compete directly, but
indirectly: If someone takes a piece of a common pie, there will
be less for everybody else.
Instead of investigating how to avoid the "Tragedy of the
Commons," Claudius Gros from Goethe University's Institute for
Theoretical Physics examined the resulting Nash equilibrium,
with unexpected results: If a common good is divided more or
less equally among N interested parties, then each receives a
share of the order 1/N. However, the respective investment costs
still need to be deducted.
Gros' calculations show that, in equilibrium, the actors
increase their engagement until the resulting investment costs
almost reach the value of the resources the individual investor
can secure for her- or himself. Mathematically, the theoretical physicist was able to show that the final profit of the individual
investor scales as 1/N2.
The original expectation, that investors each receive a
proportional share from the resource, remains correct, as Gros'
research shows. However, this does not translate into an overall
return of the same proportion, which is smaller by a power in the
number of investors. Gros denotes the dramatic deterioration of
the net profit as "catastrophic poverty," as it implies that
unregulated competition drives the individual actor close to the
profitability limit, viz to the subsistence level.
Similarly, Gros was able to show that catastrophic poverty
can be avoided when the actors cooperate with each other.
Cooperation leads to a net profit corresponding to the number of
investors in simple power, the classical result.
The result of the investigations is therefore that the "Tragedy
of the Commons" can cause substantially more damage than
previously assumed. Uncontrolled access not only leads to a
potentially excessive exploitation of the resource, a topic that has
been the focus of many previous studies. In addition, investors
suffer themselves when only maximizing their own profits.
GROS, Claudius. Generic catastrophic poverty when selfish
investors exploita degradable common resource. Royal Society
Open Science (online), 08 Fev. 2023 (adaptado)
Segundo o estudo, a "Tragédia dos Comuns" pode trazer mais
prejuízos do que aqueles considerados inicialmente e pode levar
aos seguintes efeitos:
Ano: 2023
Banca:
FUVEST
Órgão:
USP
Prova:
FUVEST - 2023 - USP - Analista de Sistemas (Especialidade: Conectividade) |
Q2277753
Inglês
Texto associado
Generic catastrophic poverty when selfish investors exploit a
degradable common resource
Game theory deals with situations in which a number of
agents compete with each other, with each participant trying to
maximize his or her own profit individually. One speaks of a
"Nash equilibrium" if players cannot increase their returns
further. The "Tragedy of the Commons" is a game theoretical
scenario in which the actors do not compete directly, but
indirectly: If someone takes a piece of a common pie, there will
be less for everybody else.
Instead of investigating how to avoid the "Tragedy of the
Commons," Claudius Gros from Goethe University's Institute for
Theoretical Physics examined the resulting Nash equilibrium,
with unexpected results: If a common good is divided more or
less equally among N interested parties, then each receives a
share of the order 1/N. However, the respective investment costs
still need to be deducted.
Gros' calculations show that, in equilibrium, the actors
increase their engagement until the resulting investment costs
almost reach the value of the resources the individual investor
can secure for her- or himself. Mathematically, the theoretical physicist was able to show that the final profit of the individual
investor scales as 1/N2.
The original expectation, that investors each receive a
proportional share from the resource, remains correct, as Gros'
research shows. However, this does not translate into an overall
return of the same proportion, which is smaller by a power in the
number of investors. Gros denotes the dramatic deterioration of
the net profit as "catastrophic poverty," as it implies that
unregulated competition drives the individual actor close to the
profitability limit, viz to the subsistence level.
Similarly, Gros was able to show that catastrophic poverty
can be avoided when the actors cooperate with each other.
Cooperation leads to a net profit corresponding to the number of
investors in simple power, the classical result.
The result of the investigations is therefore that the "Tragedy
of the Commons" can cause substantially more damage than
previously assumed. Uncontrolled access not only leads to a
potentially excessive exploitation of the resource, a topic that has
been the focus of many previous studies. In addition, investors
suffer themselves when only maximizing their own profits.
GROS, Claudius. Generic catastrophic poverty when selfish
investors exploita degradable common resource. Royal Society
Open Science (online), 08 Fev. 2023 (adaptado)
O termo "each" (segundo parágrafo) refere-se a
Ano: 2023
Banca:
FUVEST
Órgão:
USP
Prova:
FUVEST - 2023 - USP - Analista de Sistemas (Especialidade: Conectividade) |
Q2277752
Inglês
Texto associado
Generic catastrophic poverty when selfish investors exploit a
degradable common resource
Game theory deals with situations in which a number of
agents compete with each other, with each participant trying to
maximize his or her own profit individually. One speaks of a
"Nash equilibrium" if players cannot increase their returns
further. The "Tragedy of the Commons" is a game theoretical
scenario in which the actors do not compete directly, but
indirectly: If someone takes a piece of a common pie, there will
be less for everybody else.
Instead of investigating how to avoid the "Tragedy of the
Commons," Claudius Gros from Goethe University's Institute for
Theoretical Physics examined the resulting Nash equilibrium,
with unexpected results: If a common good is divided more or
less equally among N interested parties, then each receives a
share of the order 1/N. However, the respective investment costs
still need to be deducted.
Gros' calculations show that, in equilibrium, the actors
increase their engagement until the resulting investment costs
almost reach the value of the resources the individual investor
can secure for her- or himself. Mathematically, the theoretical physicist was able to show that the final profit of the individual
investor scales as 1/N2.
The original expectation, that investors each receive a
proportional share from the resource, remains correct, as Gros'
research shows. However, this does not translate into an overall
return of the same proportion, which is smaller by a power in the
number of investors. Gros denotes the dramatic deterioration of
the net profit as "catastrophic poverty," as it implies that
unregulated competition drives the individual actor close to the
profitability limit, viz to the subsistence level.
Similarly, Gros was able to show that catastrophic poverty
can be avoided when the actors cooperate with each other.
Cooperation leads to a net profit corresponding to the number of
investors in simple power, the classical result.
The result of the investigations is therefore that the "Tragedy
of the Commons" can cause substantially more damage than
previously assumed. Uncontrolled access not only leads to a
potentially excessive exploitation of the resource, a topic that has
been the focus of many previous studies. In addition, investors
suffer themselves when only maximizing their own profits.
GROS, Claudius. Generic catastrophic poverty when selfish
investors exploita degradable common resource. Royal Society
Open Science (online), 08 Fev. 2023 (adaptado)
De acordo com o texto, a "Tragédia dos Comuns" pode ser
definida como
Ano: 2023
Banca:
FUVEST
Órgão:
USP
Prova:
FUVEST - 2023 - USP - Analista de Sistemas (Especialidade: Conectividade) |
Q2277750
Inglês
Texto associado
'A Spiraling Loop of Feedbacks':
Worst-Case Scenario for Amazon Rainforest
A paper to be published in the Journal Science on January
27 has found that humans have degraded more than one-third of
the remaining trees in the Amazon rainforest. This degradation
could eventually lead to "a spiraling loop of feedbacks," Jos
Barlow, a professor of conservation science at Lancaster
University in the U.K. and co-author of the paper,
told Newsweek.
Up to 38 percent of the remaining Amazon has been affected
by human actions, researchers from Brazil's University of
Campinas (Unicamp), the Amazon Environmental Research
Institute (IPAM), National Institute for Space Research (INPE),
and Lancaster University found.
The degradation of this area-equivalent to 5.5 times the size
of the state of California-releases carbon emissions equivalent
to or greater than those from deforestation.
The Amazon contributes 16 percent of all the land-based
photosynthesis in the world, and strongly regulates global carbon
and water cycles, sucking in carbon dioxide and producing
oxygen. Additionally, despite only covering around 0.5 percent of
the Earth's surface, the Amazon is home to over 10 percent of all
named plant and vertebrate species on Earth.
"Healthy rainforests provide amazing habitat for
biodiversity-this is what the Amazon is most famous for," Sally
Thompson, an ecohydrologist at The University of Western
Australia, told Newsweek. "They usually support clean water in
rivers, make it rain, and cool the surrounding area. You can hunt,
harvest timber or foods sustainably from healthy and wellmanaged forests. And a healthy forest can often recover from
disturbance. Degraded forests aren't as good at doing any of
those things, and often they struggle to recover from
disturbance."
Deforestation involves a loss of the forest canopy and a
change in land use (e.g.,from forest to agriculture or urban land
use), while degradation is a process affecting the remaining
forests. Degradation essentially means that there is still forest in
place but it is not as healthy or as good at providing benefits for
the environment or for people.
THOMSON, Jess. 'A Spiraling Loop of Feedbacks': Worst-Case Scenario for
Amazon Rainforest. Newsweek (online), 26 jan. 2023 (adaptado).
De acordo com o texto, a degradação e o desmatamento são
processos diferentes, pois
Ano: 2023
Banca:
FUVEST
Órgão:
USP
Prova:
FUVEST - 2023 - USP - Analista de Sistemas (Especialidade: Conectividade) |
Q2277749
Inglês
Texto associado
'A Spiraling Loop of Feedbacks':
Worst-Case Scenario for Amazon Rainforest
A paper to be published in the Journal Science on January
27 has found that humans have degraded more than one-third of
the remaining trees in the Amazon rainforest. This degradation
could eventually lead to "a spiraling loop of feedbacks," Jos
Barlow, a professor of conservation science at Lancaster
University in the U.K. and co-author of the paper,
told Newsweek.
Up to 38 percent of the remaining Amazon has been affected
by human actions, researchers from Brazil's University of
Campinas (Unicamp), the Amazon Environmental Research
Institute (IPAM), National Institute for Space Research (INPE),
and Lancaster University found.
The degradation of this area-equivalent to 5.5 times the size
of the state of California-releases carbon emissions equivalent
to or greater than those from deforestation.
The Amazon contributes 16 percent of all the land-based
photosynthesis in the world, and strongly regulates global carbon
and water cycles, sucking in carbon dioxide and producing
oxygen. Additionally, despite only covering around 0.5 percent of
the Earth's surface, the Amazon is home to over 10 percent of all
named plant and vertebrate species on Earth.
"Healthy rainforests provide amazing habitat for
biodiversity-this is what the Amazon is most famous for," Sally
Thompson, an ecohydrologist at The University of Western
Australia, told Newsweek. "They usually support clean water in
rivers, make it rain, and cool the surrounding area. You can hunt,
harvest timber or foods sustainably from healthy and wellmanaged forests. And a healthy forest can often recover from
disturbance. Degraded forests aren't as good at doing any of
those things, and often they struggle to recover from
disturbance."
Deforestation involves a loss of the forest canopy and a
change in land use (e.g.,from forest to agriculture or urban land
use), while degradation is a process affecting the remaining
forests. Degradation essentially means that there is still forest in
place but it is not as healthy or as good at providing benefits for
the environment or for people.
THOMSON, Jess. 'A Spiraling Loop of Feedbacks': Worst-Case Scenario for
Amazon Rainforest. Newsweek (online), 26 jan. 2023 (adaptado).
De acordo com o texto, a degradação da Floresta Amazônica tem
como decorrência
Ano: 2023
Banca:
CONSULPLAN
Órgão:
SESPA-PA
Prova:
CONSULPLAN - 2023 - SESPA-PA - Analista de Sistemas |
Q2276886
Redes de Computadores
Leia as informações a seguir sobre rede definida por software (Software-Defined Networking – SDN).
Software-Defined Networking (SDN) is an approach to networking that uses software-based controllers or application programming interfaces (APIs) to communicate with underlying hardware infrastructure and direct traffic on a network. This model differs from that of traditional networks, which use dedicated hardware devices (i.e., routers and switches) to control network traffic. SDN can create and control a virtual network – or control a traditional hardware – via software. While network virtualization allows organizations to segment different virtual networks within a single physical network, or to connect devices on different physical networks to create a single virtual network, software-defined networking enables a new way of controlling the routing of data packets through a centralized server. The key difference between SDN and traditional networking is infrastructure: SDN is software-based, while traditional networking is hardware-based. Because the control plane is software-based, SDN is much more flexible than traditional networking. It allows administrators to control the network, change configuration settings, provision resources, and increase network capacity – all from a centralized user interface, without the need for more hardware. There are also security differences between SDN and traditional networking. Thanks to greater visibility and the ability to define secure pathways, SDN offers better security in many ways. However, because software-defined networks use a centralized controller, securing the controller is crucial to maintaining a secure network.
(Disponível em: https://www.vmware.com/topics/glossary/content/software-defined-networking.html. Acesso em: 14/08/2023.)
De acordo com o exposto, assinale a afirmativa INCORRETA.
Software-Defined Networking (SDN) is an approach to networking that uses software-based controllers or application programming interfaces (APIs) to communicate with underlying hardware infrastructure and direct traffic on a network. This model differs from that of traditional networks, which use dedicated hardware devices (i.e., routers and switches) to control network traffic. SDN can create and control a virtual network – or control a traditional hardware – via software. While network virtualization allows organizations to segment different virtual networks within a single physical network, or to connect devices on different physical networks to create a single virtual network, software-defined networking enables a new way of controlling the routing of data packets through a centralized server. The key difference between SDN and traditional networking is infrastructure: SDN is software-based, while traditional networking is hardware-based. Because the control plane is software-based, SDN is much more flexible than traditional networking. It allows administrators to control the network, change configuration settings, provision resources, and increase network capacity – all from a centralized user interface, without the need for more hardware. There are also security differences between SDN and traditional networking. Thanks to greater visibility and the ability to define secure pathways, SDN offers better security in many ways. However, because software-defined networks use a centralized controller, securing the controller is crucial to maintaining a secure network.
(Disponível em: https://www.vmware.com/topics/glossary/content/software-defined-networking.html. Acesso em: 14/08/2023.)
De acordo com o exposto, assinale a afirmativa INCORRETA.
Ano: 2023
Banca:
CONSULPLAN
Órgão:
SESPA-PA
Prova:
CONSULPLAN - 2023 - SESPA-PA - Analista de Sistemas |
Q2276885
Redes de Computadores
Considerando que Wireshark e Nmap são softwares livres empregados para o monitoramento da rede, marque V para
as afirmativas verdadeiras e F para as falsas.
( ) Wireshark: é analisador de pacotes (sniffer) que usa bibliotecas libpcap ou winpcap de acordo com o sistema operacional da máquina em que está sendo executado para capturar; filtrar; e, ler o conteúdo de pacotes.
( ) Nmap: não é um programa escalável, pois pode escanear informações de apenas um único computador na rede por vez.
( ) Nmap: permite coletar informações de computadores na rede como: sistema operacional; serviços e portas em execução/abertas; e, endereço MAC.
A sequência está correta em
( ) Wireshark: é analisador de pacotes (sniffer) que usa bibliotecas libpcap ou winpcap de acordo com o sistema operacional da máquina em que está sendo executado para capturar; filtrar; e, ler o conteúdo de pacotes.
( ) Nmap: não é um programa escalável, pois pode escanear informações de apenas um único computador na rede por vez.
( ) Nmap: permite coletar informações de computadores na rede como: sistema operacional; serviços e portas em execução/abertas; e, endereço MAC.
A sequência está correta em
Ano: 2023
Banca:
CONSULPLAN
Órgão:
SESPA-PA
Prova:
CONSULPLAN - 2023 - SESPA-PA - Analista de Sistemas |
Q2276884
Sistemas de Informação
TABWIN é uma ferramenta de tabulação que objetiva facilitar a tabulação e o tratamento de dados. São características
do TABWIN, EXCETO:
Ano: 2023
Banca:
CONSULPLAN
Órgão:
SESPA-PA
Prova:
CONSULPLAN - 2023 - SESPA-PA - Analista de Sistemas |
Q2276883
Redes de Computadores
O IP é o endereço de identificação de um computador na rede. Considerando o Linux Ubuntu, NÃO corresponde ao comando
utilizado para identificar o IP de um computador:
Ano: 2023
Banca:
CONSULPLAN
Órgão:
SESPA-PA
Prova:
CONSULPLAN - 2023 - SESPA-PA - Analista de Sistemas |
Q2276882
Arquitetura de Computadores
Memórias de um computador podem ser classificadas como voláteis e não-voláteis em relação ao armazenamento da
informação após a interrupção de energia. Considerando as memórias não-voláteis, refere-se à memória que permite
apagar seu conteúdo interno eletricamente, aplicando um sinal elétrico em um pino específico da memória:
Ano: 2023
Banca:
CONSULPLAN
Órgão:
SESPA-PA
Prova:
CONSULPLAN - 2023 - SESPA-PA - Analista de Sistemas |
Q2276881
Redes de Computadores
Protocolos são regras e procedimentos de comunicação. Considerando que no modelo OSI cada camada possui protocolos que realizam tarefas específicas, assinale a afirmativa INCORRETA.
Ano: 2023
Banca:
CONSULPLAN
Órgão:
SESPA-PA
Prova:
CONSULPLAN - 2023 - SESPA-PA - Analista de Sistemas |
Q2276880
Redes de Computadores
Os meios de transmissão, canais físicos utilizados em redes de computadores para realizar a comunicação de dados,
possuem características físicas específicas que interferem diretamente na velocidade da comunicação e na distância
máxima do enlace de comunicação. Considerando as características dos meios de transmissão existentes em redes de
computadores, assinale a afirmativa INCORRETA.
Ano: 2023
Banca:
CONSULPLAN
Órgão:
SESPA-PA
Prova:
CONSULPLAN - 2023 - SESPA-PA - Analista de Sistemas |
Q2276879
Redes de Computadores
A padronização sempre foi um dos maiores problemas em todas as indústrias, e não poderia ser diferente no mercado
de redes. No início dos anos 1980, houve um considerável crescimento na área de redes; porém, havia o problema da
quantidade de padrões existentes, ou seja, cada fabricante possuía suas soluções com um padrão proprietário, o que
obrigava o cliente a adotar as soluções fechadas de um único fabricante, visto que as soluções de diferentes fabricantes
não interoperavam. Em razão desta dificuldade, os maiores fabricantes e representantes da indústria se reuniram em
uma comissão especial da ISO e, após alguns meses de estudo, criaram o modelo OSI. Em relação às camadas do modelo
OSI, assinale a afirmativa correta.
Ano: 2023
Banca:
CONSULPLAN
Órgão:
SESPA-PA
Prova:
CONSULPLAN - 2023 - SESPA-PA - Analista de Sistemas |
Q2276878
Redes de Computadores
A topologia de rede está intimamente ligada à disposição dos computadores na rede; como e de que forma eles estão
interligados. Considerando os tipos de topologias de rede existentes, marque V para as afirmativas verdadeiras e F para
as falsas.
( ) Anel: foi lançada pela IBM, com o surgimento do token ring. Nesse tipo de topologia de rede, as estações estão conectadas em um caminho fechado. Além disso, cada estação não pode transmitir no anel a qualquer momento, mas apenas quando recebe uma autorização chamada token ou bastão.
( ) Estrela:todas as estações estão diretamente conectadas ao equipamento central. A comunicação entre dois equipamentos passa, obrigatoriamente, pelo equipamento central, que realiza a comutação das mensagens com base em técnicas de pacotes ou por circuitos, além de realizar o controle e a supervisão da rede.
( ) Barramento: a configuração em barramento auxilia a transmissão de pacotes do tipo broadcast, uma vez que todas as estações estão diretamente conectadas ao meio. O desempenho de uma rede com base em barramento varia de acordo com o número de estações, o tipo do cabo utilizado, bem como a utilização da rede pelas estações e aplicações.
A sequência está correta em
( ) Anel: foi lançada pela IBM, com o surgimento do token ring. Nesse tipo de topologia de rede, as estações estão conectadas em um caminho fechado. Além disso, cada estação não pode transmitir no anel a qualquer momento, mas apenas quando recebe uma autorização chamada token ou bastão.
( ) Estrela:todas as estações estão diretamente conectadas ao equipamento central. A comunicação entre dois equipamentos passa, obrigatoriamente, pelo equipamento central, que realiza a comutação das mensagens com base em técnicas de pacotes ou por circuitos, além de realizar o controle e a supervisão da rede.
( ) Barramento: a configuração em barramento auxilia a transmissão de pacotes do tipo broadcast, uma vez que todas as estações estão diretamente conectadas ao meio. O desempenho de uma rede com base em barramento varia de acordo com o número de estações, o tipo do cabo utilizado, bem como a utilização da rede pelas estações e aplicações.
A sequência está correta em
Ano: 2023
Banca:
CONSULPLAN
Órgão:
SESPA-PA
Prova:
CONSULPLAN - 2023 - SESPA-PA - Analista de Sistemas |
Q2276877
Redes de Computadores
Hubs e switches são equipamentos fundamentais para a comunicação entre computadores. São consideradas características
dos dispositivos de rede hub e switches, EXCETO:
Ano: 2023
Banca:
CONSULPLAN
Órgão:
SESPA-PA
Prova:
CONSULPLAN - 2023 - SESPA-PA - Analista de Sistemas |
Q2276876
Programação
Analise o seguinte fragmento de código escrito com a linguagem de programação JAVA:
Considerando o espaço destacado (omitido propositalmente), compreendido entre as linhas 7 e 10, é possível afirmar que o bloco de código que poderá ser aplicado para imprimir o resultado no formato a seguir é:
Ano: 2023
Banca:
CONSULPLAN
Órgão:
SESPA-PA
Prova:
CONSULPLAN - 2023 - SESPA-PA - Analista de Sistemas |
Q2276875
Programação
Ao realizar testes de desenvolvimento com uma nova tecnologia a ser aplicada, foi grafado o seguinte programa de
teste em C++:
Considerando a estrutura desenvolvida, analise as afirmativas a seguir.
I. O código produzido está com a sintaxe correta e nenhum erro ocorrerá durante a etapa de compilação.
II. Ao executar o programa, o resultado impresso em tela será: 1 2 3 4 5 6 7 8 9 10.
III. Pela estrutura do algoritmo elaborado, pode-se concluir que foi desenvolvido um método de ordenação de valores.
Está correto o que se afirma em
Considerando a estrutura desenvolvida, analise as afirmativas a seguir.
I. O código produzido está com a sintaxe correta e nenhum erro ocorrerá durante a etapa de compilação.
II. Ao executar o programa, o resultado impresso em tela será: 1 2 3 4 5 6 7 8 9 10.
III. Pela estrutura do algoritmo elaborado, pode-se concluir que foi desenvolvido um método de ordenação de valores.
Está correto o que se afirma em
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