Questões de Concurso Comentadas para banco do brasil

O algoritmo de ordenação Radix sort é utilizado para ordenar itens identificados por chaves únicas. Assinale a alternativa que exibe as duas classificações do Radix sort.

Analise as afirmações.
I. A CPU é uma placa de circuitos integrados que existe dentro do computador, responsável por todo o processamento das informações.
II. Os HDs são os dispositivos de memória principal mais utilizados para armazenar informações nos computadores atuais.
Ill. Uma interface USB permite tanto a entrada quanto a saída de dados e, por isso, é utilizada para conectar diversos tipos de dispositivos ao computador.
Está incorreto o que se afirma em:

Why Millennials Don’t Like Credit Cards by Holly Johnson Cheap, easy credit might have been tempting to young people in the past, but not to today’s millennials. According to a recent survey by Bankrate of over 1,161 consumers, 63% of adults ages 18 to 29 live without a credit card of any kind, and another 23% only carry one card. The Impact of the Great Recession Research shows that the environment millennials grew up in might have an impact on their finances. Unlike other generations, millennials lived through economic hardships during a time when their adult lives were beginning. According to the Bureau of Labor Statistics, the Great Recession caused millennials to stray from historic patterns when it comes to purchasing a home and having children, and a fear of credit cards could be another symptom of the economic environment of the times. And there’s much data when it comes to proving that millennials grew up on shaky economic ground. The Pew Research Center reports that 36% of millennials lived at home with their parents in 2012. Meanwhile, the unemployment rate for people ages 16 to 24 was 14.2% (more than twice the national rate) in early 2014, according to the BLS. With those figures, it’s no wonder that millennials are skittish when it comes to credit cards. It makes sense that young people would be afraid to take on any new forms of debt. A Generation Plagued with Student Loan Debt But the Great Recession isn’t the only reason millennials could be fearful of credit. Many experts believe that the nation’s student loan debt level might be related to it. According to the Institute for College Access & Success, 71% of millennials (or 1.3 million students) who graduated from college in 2012 left school with at least some student loan debt, with the average amount owed around $29,400. With so much debt already under their belts, millennials are worried about adding any credit card debt to the pile. After all, many adults with student loan debt need to make payments for years, and even decades. How Millennials Can Build Credit Without a Credit Card The fact that millennials are smart enough to avoid credit card debt is a good thing, but that doesn’t mean the decision has its drawbacks. According to Experian, most adults need a positive credit history in order to qualify for an auto loan or mortgage. Even worse, having no credit history is almost as bad as having a negative credit history in some cases. Still, there are plenty of ways millennials can build a credit history without a credit card. A few tips:     • Make payments on installment loans on time. Whether it’s a car loan, student loan or personal loan, make sure to mail in those payments on time and pay at least the minimum amount required.     • Put at least one household or utility bill in your name. Paying your utility or household bills on time can help you build a positive credit history.     • Get a secured credit card. Unlike traditional credit cards, the funds secured credit cards offer are backed by money the user deposits. Signing up for a secured card is one way to build a positive credit history without any risk. The fact that millennials are leery of credit cards is probably a good thing in the long run. After all, not having a credit card is the perfect way to stay out of credit card debt. Even though it might be harder to build a credit history without credit cards, the vast majority of millennials have decided that the plastic just isn’t worth it. Available at: <http://money.usnews.com/money/blogs/ my-money/2014/11/04/why-millennials-dont-like-credit-cards> The sentence of the text “With so much debt already under their belts, millennials are worried about adding any credit card debt to the pile” conveys the idea that millenials have

Why Millennials Don’t Like Credit Cards by Holly Johnson Cheap, easy credit might have been tempting to young people in the past, but not to today’s millennials. According to a recent survey by Bankrate of over 1,161 consumers, 63% of adults ages 18 to 29 live without a credit card of any kind, and another 23% only carry one card. The Impact of the Great Recession Research shows that the environment millennials grew up in might have an impact on their finances. Unlike other generations, millennials lived through economic hardships during a time when their adult lives were beginning. According to the Bureau of Labor Statistics, the Great Recession caused millennials to stray from historic patterns when it comes to purchasing a home and having children, and a fear of credit cards could be another symptom of the economic environment of the times. And there’s much data when it comes to proving that millennials grew up on shaky economic ground. The Pew Research Center reports that 36% of millennials lived at home with their parents in 2012. Meanwhile, the unemployment rate for people ages 16 to 24 was 14.2% (more than twice the national rate) in early 2014, according to the BLS. With those figures, it’s no wonder that millennials are skittish when it comes to credit cards. It makes sense that young people would be afraid to take on any new forms of debt. A Generation Plagued with Student Loan Debt But the Great Recession isn’t the only reason millennials could be fearful of credit. Many experts believe that the nation’s student loan debt level might be related to it. According to the Institute for College Access & Success, 71% of millennials (or 1.3 million students) who graduated from college in 2012 left school with at least some student loan debt, with the average amount owed around $29,400. With so much debt already under their belts, millennials are worried about adding any credit card debt to the pile. After all, many adults with student loan debt need to make payments for years, and even decades. How Millennials Can Build Credit Without a Credit Card The fact that millennials are smart enough to avoid credit card debt is a good thing, but that doesn’t mean the decision has its drawbacks. According to Experian, most adults need a positive credit history in order to qualify for an auto loan or mortgage. Even worse, having no credit history is almost as bad as having a negative credit history in some cases. Still, there are plenty of ways millennials can build a credit history without a credit card. A few tips:     • Make payments on installment loans on time. Whether it’s a car loan, student loan or personal loan, make sure to mail in those payments on time and pay at least the minimum amount required.     • Put at least one household or utility bill in your name. Paying your utility or household bills on time can help you build a positive credit history.     • Get a secured credit card. Unlike traditional credit cards, the funds secured credit cards offer are backed by money the user deposits. Signing up for a secured card is one way to build a positive credit history without any risk. The fact that millennials are leery of credit cards is probably a good thing in the long run. After all, not having a credit card is the perfect way to stay out of credit card debt. Even though it might be harder to build a credit history without credit cards, the vast majority of millennials have decided that the plastic just isn’t worth it. Available at: <http://money.usnews.com/money/blogs/ my-money/2014/11/04/why-millennials-dont-like-credit-cards> In the sentence of the text “Still, there are plenty of ways millennials can build a credit history without a credit card”, the quantifier plenty of can be replaced, with no change in meaning, by

Um importante aspecto do planejamento tático no segmento bancário é o mix de marketing, composto por:

Determinado funcionário de uma empresa deseja substituir cálculos de verificação de rotinas financeiras que realiza manualmente pelo uso de uma planilha Excel.

Durante sua primeira experiência preencheu um trecho de planilha com diversos valores, como mostrado abaixo.

Seu objetivo final é que as células da coluna D, correspondentes às contas correntes, sejam preenchidas com o texto SIM, caso os dois saldos da mesma conta corrente (último mês e mês corrente) sejam simultaneamente superiores a R$ 1500,00, ou, se isso não for verdade, se pelo menos um deles for superior a R$ 1800,00. Caso nenhuma dessas hipóteses ocorra, a célula correspondente deve ser preenchida com o texto NÃO.

Para isso, deve iniciar seu processo final de criação da planilha, preenchendo a célula D3 com determinada fórmula para depois copiá-la para as células de D4 a D12.

A fórmula que faz acontecer o que o funcionário deseja é:

Um desenvolvedor de uma instituição bancária foi designado para tentar usar técnicas de aprendizado de máquina para, dado o saldo diário durante um ano de um cliente, classificá-lo como BOM ou MAU candidato a receber um cartão de crédito VIP. Para isso, a única informação que pode usar — e que ele recebeu — é um conjunto de treinamento com 50.000 clientes pré- classificados pelos seus gerentes, contendo 365 campos com os saldos diários e um campo com o número 1, caso o cliente fosse um BOM candidato, ou o número 0 (zero), caso fosse um MAU candidato. Essas respostas são consideradas corretas.

Considerando as práticas tradicionais de aprendizado de máquina, o desenvolvedor deve escolher um algoritmo

Um modelo teórico do MapReduce pode ser resumido em duas funções, map e reduce. Essas funções são representadas na literatura, genericamente, com uma notação na forma:

                                Entrada genérica -> Saída genérica

A proposta original de MapReduce considerava que a função reduce teria o modelo:

                                   reduce(k2,list(v2)) -> list(v3)

Enquanto implementações de terceiros usam o modelo:

                              reduce(k2,list(v2)) -> list(k3,v3)

O modelo para a função map, porém, é sempre o mesmo.

Qual é esse modelo?

AngularJS segue um modelo MVC. Qual a diretiva correta em AngularJS para ligar um elemento de entrada de dados da visão, como um campo input do tipo texto, a um elemento do modelo, como uma variável do tipo string?

REST, ou Representational State Transfer, é um protocolo de comunicações sem estado.

Que alternativa melhor representa o corpo de uma chamada REST que deseja saber o saldo de um cliente bancário identificado como cliente 23232?

As tabelas a seguir compõem um banco de dados simplificado de um banco comercial, onde o campo sublinhado indica a chave primária. É possível que uma conta tenha vários clientes, e que um cliente tenha várias contas.

Cliente(idCliente,nomeCliente)

Conta(idConta,ultimoSaldo)

ContaCliente(idConta,idCliente)

Que comando SQL lista todos os nomes de clientes com mais de R$ 2.000,00 na conta?

Um desenvolvedor precisava construir um modelo estrela para produzir um data warehouse sobre as transferências eletrônicas disponíveis (TED) feitas pelos correntistas do banco.

Que tabelas seriam adequadas para representar as dimensões desse modelo?

HiveQL é uma linguagem de consulta, semelhante ao SQL, para Hive. Uma das suas características interessantes é ter uma extensão que permite distribuir consultas entre reducers em um script do tipo map-reduce.

Se for necessário simultaneamente distribuir as consultas e garantir a ordenação ou o agrupamento das chaves distribuídas, deve-se usar a extensão

Um desenvolvedor Web precisa transformar em JSON a seguinte variável, em um programa JavaScript:

var d1 = { "nome":"Ana Anacleto", "idade":31 };

Qual fragmento de código faz isso corretamente?