Questões de Concurso Público SERPRO 2008 para Analista - Redes
Foram encontradas 109 questões
Q43729
Inglês
Texto associado
The Internet offers access to a wealth of material that is
personally, professionally and culturally enriching to individuals
of all ages. However, it also enables access to some material that
may be offensive, disturbing, illegal, inaccurate or incomplete.
Users are encouraged to evaluate the validity and appropriateness
of information accessed via the Internet.
Tests by the library and by independent agencies have shown that
filtering software may help to block access to objectionable
Internet sites. However, the software cannot block out all
objectionable sites, and it does sometimes block useful material,
including sites that are suitable for children, teens and adults.
Public Internet computers are equipped with commercial
filtering software. The library's filtering policy upholds the
principles of intellectual freedom, allowing adults to make their
own choices regarding filtering. The policy also aims to ensure
that our libraries are safe and welcoming places for children, and
it affirms the right and responsibility of parents to make choices
for their own children and teens.
According to the text above, it can be deduced that
personally, professionally and culturally enriching to individuals
of all ages. However, it also enables access to some material that
may be offensive, disturbing, illegal, inaccurate or incomplete.
Users are encouraged to evaluate the validity and appropriateness
of information accessed via the Internet.
Tests by the library and by independent agencies have shown that
filtering software may help to block access to objectionable
Internet sites. However, the software cannot block out all
objectionable sites, and it does sometimes block useful material,
including sites that are suitable for children, teens and adults.
Public Internet computers are equipped with commercial
filtering software. The library's filtering policy upholds the
principles of intellectual freedom, allowing adults to make their
own choices regarding filtering. The policy also aims to ensure
that our libraries are safe and welcoming places for children, and
it affirms the right and responsibility of parents to make choices
for their own children and teens.
According to the text above, it can be deduced that
children's relatives are supposed to judge whether the sites to be visited by their sons and daughters are proper for them to see.
Q43730
Redes de Computadores
Texto associado
Acerca das tecnologias de LAN e WAN, julgue os itens a seguir.
No ATM, para que seja implementada qualidade de serviço, define quatro classes de tráfego: CBR, geralmente usada para transmissão de voz; VBR-rt, utilizada para stream de vídeo em tempo real; VBR-nrt, empregada na transmissão de imagens paradas; ABR, usada para tráfego de baixa prioridade, como IP, em geral.
Q43731
Redes de Computadores
Texto associado
Acerca das tecnologias de LAN e WAN, julgue os itens a seguir.
No MPLS, como são adicionados labels aos pacotes IP de acordo com suas características, os roteadores tomam suas decisões de encaminhamento baseados nos labels e não apenas no endereço de destino.
Q43732
Redes de Computadores
Texto associado
Acerca das tecnologias de LAN e WAN, julgue os itens a seguir.
Segundo o algoritmo de back off exponencial das redes ethernet, pode-se ter um tempo de espera até duas mil vezes maior que o inicialmente esperado para se retransmitir um frame após uma colisão.
Q43733
Redes de Computadores
Texto associado
Acerca das tecnologias de LAN e WAN, julgue os itens a seguir.
Em uma rede ethernet, após uma colisão, é possível tentar a retransmissão do frame, no máximo, vinte vezes.