Questões de Concurso Público Telebras 2022 para Especialista em Gestão de Telecomunicações – Analista de TI
Foram encontradas 120 questões
Ano: 2022
Banca:
CESPE / CEBRASPE
Órgão:
Telebras
Provas:
CESPE / CEBRASPE - 2022 - Telebras - Especialista em Gestão de Telecomunicações – Analista de TI
|
CESPE / CEBRASPE - 2022 - Telebras - Especialista em Gestão de Telecomunicações – Administração |
CESPE / CEBRASPE - 2022 - Telebras - Especialista em Gestão de Telecomunicações – Contador |
Q1877604
Inglês
Texto associado
In May 2021, a hole was found in a robotic arm aboard
the International Space Station (ISS). The suspected culprit was a
piece of rogue space junk. While thankfully no astronauts were
injured, it has re-focussed attention on the growing problem of
orbital debris.
How did we get here?
It’s easy to forget that just seven decades ago the Moon
was the only thing orbiting the Earth. On 1 January 2021 there
were 6,542 satellites in orbit. Tellingly, only just over half of
them were active. That’s a lot of useless metal careering around
the planet at 28,000 kph — ten times faster than a bullet.
How bad is the problem?
Very bad and getting worse. Estimates suggest there are
currently half a million pieces of debris the size of a marble or
larger and 100 million pieces of debris above one millimeter
across. Yet only 27,000 pieces are actively tracked by the US
Department of Defense.
What is Kessler syndrome?
It’s a catastrophic chain of events in which a satellite is
shattered by a piece of space junk (or a collision with another
satellite) and the resulting debris destroys more satellites creating
more junk and so on in a never-ending cascade. It’s a domino
effect – one piece falls and then takes the rest with it – and is
named after NASA scientist Donald Kessler, who outlined the
dangers back in 1978.
What can we do about it?
Better regulation of new launches would help, as right
now it’s a bit of a free-for-all. There are existing regulations in
place to try and mitigate the dangers, such as a 25-year de-orbit
rule for missions in low-Earth orbit. However, ESA’s Space
Debris Environment Report says that less than 60 per cent of
those flying in low-Earth orbit currently stick to the rules.
Colin Stuart. Space Junk: Is it a disaster waiting to happen?
Internet: <www.sciencefocus.com> (adapted).
Considering the text above, judge the following item.
It can be concluded that in the beginning of the fourth paragraph, “It's” is the contracted form of it has.
It can be concluded that in the beginning of the fourth paragraph, “It's” is the contracted form of it has.
Ano: 2022
Banca:
CESPE / CEBRASPE
Órgão:
Telebras
Provas:
CESPE / CEBRASPE - 2022 - Telebras - Especialista em Gestão de Telecomunicações – Analista de TI
|
CESPE / CEBRASPE - 2022 - Telebras - Especialista em Gestão de Telecomunicações – Administração |
CESPE / CEBRASPE - 2022 - Telebras - Especialista em Gestão de Telecomunicações – Contador |
Q1877605
Inglês
Texto associado
In May 2021, a hole was found in a robotic arm aboard
the International Space Station (ISS). The suspected culprit was a
piece of rogue space junk. While thankfully no astronauts were
injured, it has re-focussed attention on the growing problem of
orbital debris.
How did we get here?
It’s easy to forget that just seven decades ago the Moon
was the only thing orbiting the Earth. On 1 January 2021 there
were 6,542 satellites in orbit. Tellingly, only just over half of
them were active. That’s a lot of useless metal careering around
the planet at 28,000 kph — ten times faster than a bullet.
How bad is the problem?
Very bad and getting worse. Estimates suggest there are
currently half a million pieces of debris the size of a marble or
larger and 100 million pieces of debris above one millimeter
across. Yet only 27,000 pieces are actively tracked by the US
Department of Defense.
What is Kessler syndrome?
It’s a catastrophic chain of events in which a satellite is
shattered by a piece of space junk (or a collision with another
satellite) and the resulting debris destroys more satellites creating
more junk and so on in a never-ending cascade. It’s a domino
effect – one piece falls and then takes the rest with it – and is
named after NASA scientist Donald Kessler, who outlined the
dangers back in 1978.
What can we do about it?
Better regulation of new launches would help, as right
now it’s a bit of a free-for-all. There are existing regulations in
place to try and mitigate the dangers, such as a 25-year de-orbit
rule for missions in low-Earth orbit. However, ESA’s Space
Debris Environment Report says that less than 60 per cent of
those flying in low-Earth orbit currently stick to the rules.
Colin Stuart. Space Junk: Is it a disaster waiting to happen?
Internet: <www.sciencefocus.com> (adapted).
Considering the text above, judge the following item.
The word “Yet” (third paragraph) acts as an indicator of time.
Ano: 2022
Banca:
CESPE / CEBRASPE
Órgão:
Telebras
Provas:
CESPE / CEBRASPE - 2022 - Telebras - Especialista em Gestão de Telecomunicações – Analista de TI
|
CESPE / CEBRASPE - 2022 - Telebras - Especialista em Gestão de Telecomunicações – Administração |
CESPE / CEBRASPE - 2022 - Telebras - Especialista em Gestão de Telecomunicações – Contador |
Q1877606
Inglês
Texto associado
In May 2021, a hole was found in a robotic arm aboard
the International Space Station (ISS). The suspected culprit was a
piece of rogue space junk. While thankfully no astronauts were
injured, it has re-focussed attention on the growing problem of
orbital debris.
How did we get here?
It’s easy to forget that just seven decades ago the Moon
was the only thing orbiting the Earth. On 1 January 2021 there
were 6,542 satellites in orbit. Tellingly, only just over half of
them were active. That’s a lot of useless metal careering around
the planet at 28,000 kph — ten times faster than a bullet.
How bad is the problem?
Very bad and getting worse. Estimates suggest there are
currently half a million pieces of debris the size of a marble or
larger and 100 million pieces of debris above one millimeter
across. Yet only 27,000 pieces are actively tracked by the US
Department of Defense.
What is Kessler syndrome?
It’s a catastrophic chain of events in which a satellite is
shattered by a piece of space junk (or a collision with another
satellite) and the resulting debris destroys more satellites creating
more junk and so on in a never-ending cascade. It’s a domino
effect – one piece falls and then takes the rest with it – and is
named after NASA scientist Donald Kessler, who outlined the
dangers back in 1978.
What can we do about it?
Better regulation of new launches would help, as right
now it’s a bit of a free-for-all. There are existing regulations in
place to try and mitigate the dangers, such as a 25-year de-orbit
rule for missions in low-Earth orbit. However, ESA’s Space
Debris Environment Report says that less than 60 per cent of
those flying in low-Earth orbit currently stick to the rules.
Colin Stuart. Space Junk: Is it a disaster waiting to happen?
Internet: <www.sciencefocus.com> (adapted).
Considering the text above, judge the following item.
The event described in the first paragraph is an example of an effect whose risks were predicted decades ago.
The event described in the first paragraph is an example of an effect whose risks were predicted decades ago.
Ano: 2022
Banca:
CESPE / CEBRASPE
Órgão:
Telebras
Provas:
CESPE / CEBRASPE - 2022 - Telebras - Especialista em Gestão de Telecomunicações – Analista de TI
|
CESPE / CEBRASPE - 2022 - Telebras - Especialista em Gestão de Telecomunicações – Administração |
CESPE / CEBRASPE - 2022 - Telebras - Especialista em Gestão de Telecomunicações – Contador |
Q1877607
Inglês
Texto associado
Jack Kilby’s revolutionary idea was to make all the
different components of a circuit out of the same flat block of
semiconductor material. Not only would this get rid of wires and
faulty connections, it would make the entire circuit much more
compact. Kilby demonstrated his first “integrated circuit” on
Sept. 12, 1958.
Six months later, in California, another engineer, Robert
Noyce, independently came up with the idea of making an
integrated circuit. Noyce’s chip was better suited to be
manufactured in large numbers, and soon he was part of a young
company called Intel.
Thus was launched a revolution. The first chip-based
computer was the first U.S. Air Force computer, built in 1961.
The true potential of the integrated circuit was shown when
Texas Instruments unveiled the pocket calculator. Previously
calculators had been bulky devices that needed to be plugged in
to electrical mains. The pocket calculator, small enough to hold
in one’s palm, had a chip inside and batteries were adequate to
power it.
Progress was rapid thereafter. Many have already heard of
Moore’s law, which has become a mantra of the digital age. First
put forward by the Intel co-founder Gordon Moore in the 1960s,
it says that the processing power of a chip doubles every two
years, while the price falls by half. For more than four decades,
Moore’s law has held, driving incredible growth and
miniaturization — and wealth.
The question is whether the semiconductor industry can
sustain this pace. Further increasing the processing power of
chips is proving to be problematic as certain fundamental
physical barriers are being reached. At the same time, new
frontiers are opening up. The quest is on to make chips that are
powered by light instead of electricity, which will enable much
faster computers.
Saswato Das. The Chip that Changed the World. Internet: <www.nytimes.com> (adapted).
Considering the text above, judge the following item.
In the third sentence of the fourth paragraph, the pronoun “it” refers to Intel.
Ano: 2022
Banca:
CESPE / CEBRASPE
Órgão:
Telebras
Provas:
CESPE / CEBRASPE - 2022 - Telebras - Especialista em Gestão de Telecomunicações – Analista de TI
|
CESPE / CEBRASPE - 2022 - Telebras - Especialista em Gestão de Telecomunicações – Administração |
CESPE / CEBRASPE - 2022 - Telebras - Especialista em Gestão de Telecomunicações – Contador |
Q1877608
Inglês
Texto associado
Jack Kilby’s revolutionary idea was to make all the
different components of a circuit out of the same flat block of
semiconductor material. Not only would this get rid of wires and
faulty connections, it would make the entire circuit much more
compact. Kilby demonstrated his first “integrated circuit” on
Sept. 12, 1958.
Six months later, in California, another engineer, Robert
Noyce, independently came up with the idea of making an
integrated circuit. Noyce’s chip was better suited to be
manufactured in large numbers, and soon he was part of a young
company called Intel.
Thus was launched a revolution. The first chip-based
computer was the first U.S. Air Force computer, built in 1961.
The true potential of the integrated circuit was shown when
Texas Instruments unveiled the pocket calculator. Previously
calculators had been bulky devices that needed to be plugged in
to electrical mains. The pocket calculator, small enough to hold
in one’s palm, had a chip inside and batteries were adequate to
power it.
Progress was rapid thereafter. Many have already heard of
Moore’s law, which has become a mantra of the digital age. First
put forward by the Intel co-founder Gordon Moore in the 1960s,
it says that the processing power of a chip doubles every two
years, while the price falls by half. For more than four decades,
Moore’s law has held, driving incredible growth and
miniaturization — and wealth.
The question is whether the semiconductor industry can
sustain this pace. Further increasing the processing power of
chips is proving to be problematic as certain fundamental
physical barriers are being reached. At the same time, new
frontiers are opening up. The quest is on to make chips that are
powered by light instead of electricity, which will enable much
faster computers.
Saswato Das. The Chip that Changed the World. Internet: <www.nytimes.com> (adapted).
Considering the text above, judge the following item.
According to the text, before the pocket calculator, calculators were compact, but did not run on batteries.
According to the text, before the pocket calculator, calculators were compact, but did not run on batteries.
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