Questões - UFPR | Gabarito e resoluções

(UFPR - 2016 - 1aFASE) O Centro de Estudos, Resposta e Tratamento de Incidentes de Segurana no Brasil (CERT.br) responsvel por tratar incidentes de segurana em computadores e redes conectadas Internet no Brasil. A tabela abaixo apresenta o nmero de mensagens no solicitadas (spams) notificadas ao CERT.br no ano de 2015, por trimestre. Qual dos grficos abaixo representa os dados dessa tabela?

(UFPR - 2016 - 1aFASE) A piscina usada nas competies de natao das Olimpadas Rio 2016 possui as medidas oficiais recomendadas: 50 metros de extenso, 25 metros de largura e 3 metros de profundidade. Supondo que essa piscina tenha o formato de um paraleleppedo retngulo, qual dos valores abaixo mais se aproxima da capacidade mxima de gua que essa piscina pode conter?

(UFPR - 2016 - 1a FASE) Rafaela e Henrique participaram de uma atividade voluntria que consistiu na pintura da fachada de uma instituio de caridade. No final do dia, restaram duas latas de tinta idnticas(de mesmo tamanho e cor). Uma dessas latas estava cheia de tinta ate a metade de sua capacidade e a outra estava cheia de tinta atde sua capacidade. Ambos decidiram juntar esse excedente e dividir em duas partes iguais, a serem armazenadas nessas mesmas latas. A frao que representa o volume de tinta em cada uma das latas, em relao sua capacidade, aps essa diviso :

(UFPR - 2016 - 1aFASE) O grfico ao lado representa o consumo de bateria de um celular entre as 10 h e as 16 h de um determinado dia. Supondo que o consumo manteve o mesmo padro at a bateria se esgotar, a que horas o nvel da bateria atingiu 10%?

(UFPR - 2016 - 1aFASE) Considere a reta r de equao.Qual das retas abaixo perpendicular reta r e passa pelo ponto?

(UFPR - 2016 - 1aFASE) Um dado comum, com faces numeradas de 1 a 6, lanado duas vezes, fornecendo doisnmerosae c,que podem ser iguais ou diferentes. Qual a probabilidade de a equao ax2+4x + c = 0ter pelo menos uma raiz real?

(UFPR - 2016 - 1aFASE) A respeito da funo representada no grfico ao lado, considere as seguintes afirmativas: 1. A funo crescente no intervalo aberto (4, 6). 2. A funo tem um ponto de mximo em x = 1. 3. Esse grfico representa uma funo injetora. 4. Esse grfico representa uma funo polinomial de terceiro grau. Assinale a alternativa correta.

(UFPR - 2016 - 1aFASE) Suponha que a quantidade Q de um determinado medicamento no organismo t horas aps sua administrao possa ser calculada pela frmula: sendo Q medido em miligramas. A expresso que fornece o tempo t em funo da quantidade de medicamento Q :

(UFPR - 2016 - 1aFASE) Volando hacia la muerte Como ahora estamos todava estremecidos por el caso de Diego, el nio de 11 aos que se arroj por la ventana de una quinta planta, nos parece que el acoso escolar es una abominacin tan espantosa que todos nos vamos a unir contra ello y vamos a acabar con esta lacra. Nuestra indignacin es muy loable, pero a m lo que ms me indigna, precisamente, es que esta atrocidad inadmisible termina siendo digerida y a la postre admitida una y otra vez por las enormes tragaderas de nuestra cmplice y ablica sociedad. Cinco meses antes que Diego, y tambin en Madrid, Arancha, de 16 aos, con discapacidad intelectual y motora, se arroj por el hueco de una escalera de seis pisos tras sufrir palizas y chantajes por parte de un compaero, que adems cometa estas brutalidades delante de numerosos testigos que jams hicieron nada. Claro que tampoco hicimos mucho los dems, el Gobierno, las instituciones, los ciudadanos. Tambin se nos encogi nuestro delicado corazn en 2013, cuando Carla, una chica de 14 aos, se tir desde un acantilado en Gijn. Su nico delito era ser estrbica, y a causa de ello dos compaeras la maltrataron hasta llevarla a la muerte. Pero ya ven, al poco de aquella tragedia se nos fue el asunto de la cabeza. Ya nos haba acometido antes una desmemoria parecida: la primera vez que se habl de forma masiva del acoso escolar fue en 2004, cuando Jokin Ceberio, de 14 aos, se mat lanzndose desde la muralla de Hondarribia tras dos aos de sistemtica tortura. Entonces nos rasgamos las vestiduras y se nos llen la boca de buenos propsitos. Hasta que la gran ballena arponeada del acoso escolar se sumergi de nuevo bajo las aguas de nuestra indiferencia. Han pasado 12 aos desde la tragedia de Jokin y aqu seguimos, enterrando nios. Tras el suicidio de Diego contact conmigo Roco, una chica de 24 aos de un pueblo de Sevilla. Padece una deficiencia visual grave y ha sido atormentada desde los 8 aos hasta los 17. Y durante todo ese tiempo los profesores jams le ayudaron. No slo eso: a menudo agravaron el problema. Ahora, a los 24, Roco est terminando Psicologa: Aprend que el maltrato se origina sobre todo cuando un nio al que consideran discapacitado obtiene buenos resultados escolares, como yo. Hasta septiembre, que empez una terapia, sigui traumatizada por su pasado. No poda leer una noticia de acoso sin angustiarse y segua teniendo miedo a los nios. Quiero decir que este tormento deja profundas huellas. [] Necesitamos un plan nacional contra el acoso, incluso una ley. Necesitamos que este tema sea un asunto de Estado, hoy y para siempre. Ni un nio ms volando hacia la muerte. (MONTERO, Rosa. disponible en: www.elpais.com. Texto adaptado.) Para Rosa Montero, la principal causa de conmocin colectiva por la muerte de Diego se debe:

(UFPR - 2016 - 1aFASE) Six things I learned from riding in a Google self-driving car 1 - Human beings are terrible drivers. We drink. We doze. We text. In the US, 30,000people die from automobile accidents every year. Traffic crashes are the primary cause of death worldwide for people aged 15-24, and during a crash, 40%of drivers never even hit the brakes. Were flawed organisms, barreling around at high speeds in vessels covered in glass, metal, distraction, and death. This is one of Googles moonshots to remove human error from a job which, for the past hundred years, has been entirely human. 2 - Google self-driving cars are timid. The car we rode in did not strike me as dangerous. It drove slowly and deliberately, and I got the impression that its more likely to annoy other drivers than to harm them. In the early versions they tested on closed courses, the vehicles were programmed to be highly aggressive. Apparently during these tests, which involved obstacle courses full of traffic cones and inflatable crash-test objects, there were a lot of screeching brakes, roaring engines and terrified interns. 3 - Theyre cute. Googles new fleet was intentionally designed to look adorable. Our brains are hardwired to treat inanimate (or animate) objects with greater care, caution, and reverence when they resemble a living thing. By turning self-driving cars into an adorable Skynet Marshmallow Bumper Bots, Google hopes to spiritually disarm other drivers. I also suspect the cuteness is used to quell some of the road rage that might emerge from being stuck behind one of these things. Theyre intended as moderate-distance couriers, not open-road warriors, so their max speed is 25miles per hour. 4 - Its not done and its not perfect. Some of the scenarios autonomous vehicles have the most trouble with are the same human beings have the most trouble with, such as traversing four-way stops or handling a yellow light. The cars use a mixture of 3D laser-mapping, GPS, and radar to analyze and interpret their surroundings, and the latest versions are fully electric with a range of about 100 miles. Despite the advantages over a human being in certain scenarios, however, these cars still arent ready for the real world. They cant drive in the snow or heavy rain, and theres a variety of complex situations they do not process well, such as passing through a construction zone. Google is hoping that, eventually, the cars will be able to handle all of this as well (or better) than a human could. 5 - I want this technology to succeed, like yesterday. Im biased. Earlier this year my mom had a stroke. It damaged the visual cortex of her brain, and her vision was impaired to the point that shell probably never drive again. This reduced her from a fully-functional, independent human being with a career and a buzzing social life into someone who is homebound, disabled, and powerless. When discussing self-driving cars, people tend to ask many superficial questions. They ignore that 45% of disabled people in the US still work. They ignore that 95%of a cars lifetime is spent parked. They ignore how this technology could transform the lives of the elderly, or eradicate the need for parking lots or garages or gas stations. They dismiss the entire concept because they dont think a computer could ever be as good at merging on the freeway as they are. They ignore the great, big, beautiful picture: that this technology could make our lives so much better. 6 - It wasnt an exhilarating ride, and thats a good thing. Riding in a self-driving car is not the cybernetic thrill ride one might expect. The car drives like a person, and after a few minutes you forget that youre being driven autonomously. You forget that a robot is differentiating cars from pedestrians from mopeds from raccoons. You forget that millions of photons are being fired from a laser and interpreting, processing, and reacting to the hand signals of a cyclist. You forget that instead of an organic brain, which has had millions of years to evolve the cognitive ability to fumble its way through a four-way stop, youre being piloted by an artificial one, which was birthed in less than a decade. The unfortunate part of something this transformative is the inevitable, ardent stupidity which is going to erupt from the general public. Even if in a few years self-driving cars are proven to be ten times safer than human-operated cars, all its going to take is one tragic accident and the public is going to lose their minds. There will be outrage. There will be politicizing. There will be hashtags. I say look at the bigger picture. All the self-driving cars currently on the road learn from one another, and possess 40 years of driving experience. And this technology is still in its infancy. (Adapted from: http://theoatmeal.com/blog/google_self_driving_car. 21/08/2016.) Consider the following: 1. Drinking before driving. 2. Sending a written message while driving. 3. Sleeping for a short period of time. 4. Hitting the brakes. 5. Speeding up. According to the text, some human mistakes that happen before or during a car accident are:

(UFPR - 2016 - 1aFASE) Six things I learned from riding in a Google self-driving car 1 - Human beings are terrible drivers. We drink. We doze. We text. In the US, 30,000people die from automobile accidents every year. Traffic crashes are the primary cause of death worldwide for people aged 15-24, and during a crash, 40%of drivers never even hit the brakes. Were flawed organisms, barreling around at high speeds in vessels covered in glass, metal, distraction, and death. This is one of Googles moonshots to remove human error from a job which, for the past hundred years, has been entirely human. 2 - Google self-driving cars are timid. The car we rode in did not strike me as dangerous. It drove slowly and deliberately, and I got the impression that its more likely to annoy other drivers than to harm them. In the early versions they tested on closed courses, the vehicles were programmed to be highly aggressive. Apparently during these tests, which involved obstacle courses full of traffic cones and inflatable crash-test objects, there were a lot of screeching brakes, roaring engines and terrified interns. 3 - Theyre cute. Googles new fleet was intentionally designed to look adorable. Our brains are hardwired to treat inanimate (or animate) objects with greater care, caution, and reverence when they resemble a living thing. By turning self-driving cars into an adorable Skynet Marshmallow Bumper Bots, Google hopes to spiritually disarm other drivers. I also suspect the cuteness is used to quell some of the road rage that might emerge from being stuck behind one of these things. Theyre intended as moderate-distance couriers, not open-road warriors, so their max speed is 25miles per hour. 4 - Its not done and its not perfect. Some of the scenarios autonomous vehicles have the most trouble with are the same human beings have the most trouble with, such as traversing four-way stops or handling a yellow light. The cars use a mixture of 3D laser-mapping, GPS, and radar to analyze and interpret their surroundings, and the latest versions are fully electric with a range of about 100 miles. Despite the advantages over a human being in certain scenarios, however, these cars still arent ready for the real world. They cant drive in the snow or heavy rain, and theres a variety of complex situations they do not process well, such as passing through a construction zone. Google is hoping that, eventually, the cars will be able to handle all of this as well (or better) than a human could. 5 - I want this technology to succeed, like yesterday. Im biased. Earlier this year my mom had a stroke. It damaged the visual cortex of her brain, and her vision was impaired to the point that shell probably never drive again. This reduced her from a fully-functional, independent human being with a career and a buzzing social life into someone who is homebound, disabled, and powerless. When discussing self-driving cars, people tend to ask many superficial questions. They ignore that 45% of disabled people in the US still work. They ignore that 95%of a cars lifetime is spent parked. They ignore how this technology could transform the lives of the elderly, or eradicate the need for parking lots or garages or gas stations. They dismiss the entire concept because they dont think a computer could ever be as good at merging on the freeway as they are. They ignore the great, big, beautiful picture: that this technology could make our lives so much better. 6 - It wasnt an exhilarating ride, and thats a good thing. Riding in a self-driving car is not the cybernetic thrill ride one might expect. The car drives like a person, and after a few minutes you forget that youre being driven autonomously. You forget that a robot is differentiating cars from pedestrians from mopeds from raccoons. You forget that millions of photons are being fired from a laser and interpreting, processing, and reacting to the hand signals of a cyclist. You forget that instead of an organic brain, which has had millions of years to evolve the cognitive ability to fumble its way through a four-way stop, youre being piloted by an artificial one, which was birthed in less than a decade. The unfortunate part of something this transformative is the inevitable, ardent stupidity which is going to erupt from the general public. Even if in a few years self-driving cars are proven to be ten times safer than human-operated cars, all its going to take is one tragic accident and the public is going to lose their minds. There will be outrage. There will be politicizing. There will be hashtags. I say look at the bigger picture. All the self-driving cars currently on the road learn from one another, and possess 40 years of driving experience. And this technology is still in its infancy. (Adapted from: http://theoatmeal.com/blog/google_self_driving_car. 21/08/2016.) According to the author:

(UFPR - 2016- 1 FASE) Para el autor, leer El silencio de las sirenas fue:

(UFPR - 2016 - 1aFASE) Volando hacia la muerte Como ahora estamos todava estremecidos por el caso de Diego, el nio de 11 aos que se arroj por la ventana de una quinta planta, nos parece que el acoso escolar es una abominacin tan espantosa que todos nos vamos a unir contra ello y vamos a acabar con esta lacra. Nuestra indignacin es muy loable, pero a m lo que ms me indigna, precisamente, es que esta atrocidad inadmisible termina siendo digerida y a la postre admitida una y otra vez por las enormes tragaderas de nuestra cmplice y ablica sociedad. Cinco meses antes que Diego, y tambin en Madrid, Arancha, de 16 aos, con discapacidad intelectual y motora, se arroj por el hueco de una escalera de seis pisos tras sufrir palizas y chantajes por parte de un compaero, que adems cometa estas brutalidades delante de numerosos testigos que jams hicieron nada. Claro que tampoco hicimos mucho los dems, el Gobierno, las instituciones, los ciudadanos. Tambin se nos encogi nuestro delicado corazn en 2013, cuando Carla, una chica de 14 aos, se tir desde un acantilado en Gijn. Su nico delito era ser estrbica, y a causa de ello dos compaeras la maltrataron hasta llevarla a la muerte. Pero ya ven, al poco de aquella tragedia se nos fue el asunto de la cabeza. Ya nos haba acometido antes una desmemoria parecida: la primera vez que se habl de forma masiva del acoso escolar fue en 2004, cuando Jokin Ceberio, de 14 aos, se mat lanzndose desde la muralla de Hondarribia tras dos aos de sistemtica tortura. Entonces nos rasgamos las vestiduras y se nos llen la boca de buenos propsitos. Hasta que la gran ballena arponeada del acoso escolar se sumergi de nuevo bajo las aguas de nuestra indiferencia. Han pasado 12 aos desde la tragedia de Jokin y aqu seguimos, enterrando nios. Tras el suicidio de Diego contact conmigo Roco, una chica de 24 aos de un pueblo de Sevilla. Padece una deficiencia visual grave y ha sido atormentada desde los 8 aos hasta los 17. Y durante todo ese tiempo los profesores jams le ayudaron. No slo eso: a menudo agravaron el problema. Ahora, a los 24, Roco est terminando Psicologa: Aprend que el maltrato se origina sobre todo cuando un nio al que consideran discapacitado obtiene buenos resultados escolares, como yo. Hasta septiembre, que empez una terapia, sigui traumatizada por su pasado. No poda leer una noticia de acoso sin angustiarse y segua teniendo miedo a los nios. Quiero decir que este tormento deja profundas huellas. [] Necesitamos un plan nacional contra el acoso, incluso una ley. Necesitamos que este tema sea un asunto de Estado, hoy y para siempre. Ni un nio ms volando hacia la muerte. (MONTERO, Rosa. disponible en: www.elpais.com. Texto adaptado.) El caso de acoso de Arancha tuvo como agravante el hecho de:

(UFPR - 2016 - 1aFASE) Six things I learned from riding in a Google self-driving car 1 - Human beings are terrible drivers. We drink. We doze. We text. In the US, 30,000people die from automobile accidents every year. Traffic crashes are the primary cause of death worldwide for people aged 15-24, and during a crash, 40%of drivers never even hit the brakes. Were flawed organisms, barreling around at high speeds in vessels covered in glass, metal, distraction, and death. This is one of Googles moonshots to remove human error from a job which, for the past hundred years, has been entirely human. 2 - Google self-driving cars are timid. The car we rode in did not strike me as dangerous. It drove slowly and deliberately, and I got the impression that its more likely to annoy other drivers than to harm them. In the early versions they tested on closed courses, the vehicles were programmed to be highly aggressive. Apparently during these tests, which involved obstacle courses full of traffic cones and inflatable crash-test objects, there were a lot of screeching brakes, roaring engines and terrified interns. 3 - Theyre cute. Googles new fleet was intentionally designed to look adorable. Our brains are hardwired to treat inanimate (or animate) objects with greater care, caution, and reverence when they resemble a living thing. By turning self-driving cars into an adorable Skynet Marshmallow Bumper Bots, Google hopes to spiritually disarm other drivers. I also suspect the cuteness is used to quell some of the road rage that might emerge from being stuck behind one of these things. Theyre intended as moderate-distance couriers, not open-road warriors, so their max speed is 25miles per hour. 4 - Its not done and its not perfect. Some of the scenarios autonomous vehicles have the most trouble with are the same human beings have the most trouble with, such as traversing four-way stops or handling a yellow light. The cars use a mixture of 3D laser-mapping, GPS, and radar to analyze and interpret their surroundings, and the latest versions are fully electric with a range of about 100 miles. Despite the advantages over a human being in certain scenarios, however, these cars still arent ready for the real world. They cant drive in the snow or heavy rain, and theres a variety of complex situations they do not process well, such as passing through a construction zone. Google is hoping that, eventually, the cars will be able to handle all of this as well (or better) than a human could. 5 - I want this technology to succeed, like yesterday. Im biased. Earlier this year my mom had a stroke. It damaged the visual cortex of her brain, and her vision was impaired to the point that shell probably never drive again. This reduced her from a fully-functional, independent human being with a career and a buzzing social life into someone who is homebound, disabled, and powerless. When discussing self-driving cars, people tend to ask many superficial questions. They ignore that 45% of disabled people in the US still work. They ignore that 95%of a cars lifetime is spent parked. They ignore how this technology could transform the lives of the elderly, or eradicate the need for parking lots or garages or gas stations. They dismiss the entire concept because they dont think a computer could ever be as good at merging on the freeway as they are. They ignore the great, big, beautiful picture: that this technology could make our lives so much better. 6 - It wasnt an exhilarating ride, and thats a good thing. Riding in a self-driving car is not the cybernetic thrill ride one might expect. The car drives like a person, and after a few minutes you forget that youre being driven autonomously. You forget that a robot is differentiating cars from pedestrians from mopeds from raccoons. You forget that millions of photons are being fired from a laser and interpreting, processing, and reacting to the hand signals of a cyclist. You forget that instead of an organic brain, which has had millions of years to evolve the cognitive ability to fumble its way through a four-way stop, youre being piloted by an artificial one, which was birthed in less than a decade. The unfortunate part of something this transformative is the inevitable, ardent stupidity which is going to erupt from the general public. Even if in a few years self-driving cars are proven to be ten times safer than human-operated cars, all its going to take is one tragic accident and the public is going to lose their minds. There will be outrage. There will be politicizing. There will be hashtags. I say look at the bigger picture. All the self-driving cars currently on the road learn from one another, and possess 40 years of driving experience. And this technology is still in its infancy. (Adapted from: http://theoatmeal.com/blog/google_self_driving_car. 21/08/2016.) Based on the reading, mark the correct alternative.

(UFPR - 2016- 1 FASE) Sobre las sirenas presentes en la literatura, identifica como verdaderas (V) o falsas (F) las siguientes afirmativas: ( ) Comparten el lugar con otros seres fantsticos en la literatura de la actualidad. ( ) Tienen como caracterstica una seduccin mal intencionada. ( ) Son reales, al contrario que vampiros, zombies y fantasmas. ( ) Sus poderes son incomparables a los dems seres sobrenaturales. Seala la alternativa que presenta la secuencia correcta, de arriba hacia abajo.