Mikrotik MTCINE-01

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Questions and Answers

Qual é o número padrão da porta TCP utilizada pelo protocolo BGP?

  • 80
  • 179 (correct)
  • 443
  • 123

O BGP é um protocolo do tipo Distance Vector.

False (B)

Quais atributos são considerados obrigatórios em uma mensagem de atualização (Update) do BGP?

  • NLRI e MED
  • NLRI e AS-PATH (correct)
  • AS-PATH e Weight
  • Local Preference e Origin

O atributo "AS-PATH" é usado para:

<p>Controlar loops de roteamento. (A)</p>
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Qual dos seguintes estados pertence ao ciclo de vida de uma sessão BGP?

<p>OpenSent (C)</p>
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O MPLS opera entre quais camadas do modelo OSI?

<p>Camada de Enlace e Rede. (B)</p>
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Um rótulo MPLS possui 32 bits, sendo 20 reservados para o campo de label.

<p>True (A)</p>
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O que é o mecanismo de "Penultimate Hop Popping" (PHP) no MPLS?

<p>Remover o rótulo no penúltimo salto. (B)</p>
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Qual o papel do roteador LER (Label Edge Router) no MPLS?

<p>Classificar pacotes e atribuir rótulos. (C)</p>
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Qual protocolo é comumente usado para distribuir rótulos no MPLS?

<p>LDP (C)</p>
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Flashcards

BGP default TCP port

The standard TCP port used by the Border Gateway Protocol (BGP) is 179.

BGP type

BGP is not a distance vector protocol.

BGP update message attributes

The mandatory attributes in a BGP update message are NLRI (Network Layer Reachability Information) and AS-PATH.

AS-PATH attribute purpose

The AS-PATH attribute in BGP prevents routing loops by tracking the path a packet takes through different autonomous systems.

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BGP session state

OpenSent is a state in the BGP session lifecycle.

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MPLS layers

MPLS operates between the link layer and network layer of the OSI model.

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MPLS label size

An MPLS label is 32 bits, with 20 bits reserved for the label field.

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Penultimate Hop Popping (PHP)

PHP is a mechanism in MPLS where the label is removed on the penultimate hop.

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LER role in MPLS

Label Edge Routers (LERs) classify packets and assign labels in MPLS.

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MPLS label distribution protocol

LDP (Label Distribution Protocol) is a common protocol for distributing labels in MPLS.

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