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- content: Which layer of the OSI model does Azure Load Balancer function at?
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choices:
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- content: Layer 4
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isCorrect: true
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explanation: Correct. Load Balancer functions at Layer 4 (transport layer) of the OSI model.
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- content: Layer 7
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isCorrect: false
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explanation: Incorrect. Load Balancer functions at Layer 4 of the OSI model. Other Azure services, such as Azure Application Gateway, can load balance traffic at Layer 7.
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- content: Layer 5
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isCorrect: false
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explanation: Incorrect. Azure Load Balancer functions at Layer 4 of the OSI model. Layer 5 of the OSI model is the session layer that addresses opening, closing, and managing application sessions.
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- content: Which of the following components should you configure to ensure that traffic from a specific client computer is always directed to the same server in the back-end pool?
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choices:
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- content: Health probe
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isCorrect: false
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explanation: Incorrect. Health probes allow you to determine whether a back-end pool instance is responding to traffic.
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- content: High availability port
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isCorrect: false
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explanation: Incorrect. High availability ports are a type of rule in which all TCP and UDP traffic that arrives on all ports is load balanced.
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- content: Session persistence
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isCorrect: true
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explanation: Correct. Session persistence allows you to ensure that traffic from a client computer interacting with Azure Load Balancer is always forwarded to the same server in the back-end pool.
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- content: Which of the following components would you configure to ensure that back-end pool instances that are no longer responding to traffic on TCP port 443 no longer have traffic directed to them by Load Balancer?
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choices:
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- content: High availability port
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isCorrect: false
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explanation: Incorrect. High availability ports are a type of rule in which all TCP and UDP traffic that arrives on all ports is load balanced.
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- content: Outbound rule
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isCorrect: false
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explanation: Incorrect. Outbound rules are used to configure traffic flow from back-end pool instances to the internet.
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- content: Health probe
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isCorrect: true
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explanation: Correct. Health probes allow you to determine whether a back-end pool instance is responding to traffic.
- content: Which layer of the OSI model does Azure Load Balancer function at?
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choices:
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- content: Layer 4
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isCorrect: true
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explanation: Correct. Load Balancer functions at Layer 4 (transport layer) of the OSI model.
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- content: Layer 7
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isCorrect: false
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explanation: Incorrect. Load Balancer functions at Layer 4 of the OSI model. Other Azure services, such as Azure Application Gateway, can load balance traffic at Layer 7.
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- content: Layer 5
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isCorrect: false
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explanation: Incorrect. Azure Load Balancer functions at Layer 4 of the OSI model. Layer 5 of the OSI model is the session layer that addresses opening, closing, and managing application sessions.
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- content: Which of the following components should you configure to ensure that traffic from a specific client computer is always directed to the same server in the back-end pool?
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choices:
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- content: Health probe
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isCorrect: false
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explanation: Incorrect. Health probes allow you to determine whether a back-end pool instance is responding to traffic.
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- content: High availability port
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isCorrect: false
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explanation: Incorrect. High availability ports are a type of rule in which all TCP and UDP traffic that arrives on all ports is load balanced.
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- content: Session persistence
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isCorrect: true
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explanation: Correct. Session persistence allows you to ensure that traffic from a client computer interacting with Azure Load Balancer is always forwarded to the same server in the back-end pool.
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- content: Which of the following components would you configure to ensure that back-end pool instances that are no longer responding to traffic on TCP port 443 no longer have traffic directed to them by Load Balancer?
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choices:
42
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- content: High availability port
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isCorrect: false
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explanation: Incorrect. High availability ports are a type of rule in which all TCP and UDP traffic that arrives on all ports is load balanced.
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- content: Outbound rule
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isCorrect: false
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explanation: Incorrect. Outbound rules are used to configure traffic flow from back-end pool instances to the internet.
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- content: Health probe
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isCorrect: true
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explanation: Correct. Health probes allow you to determine whether a back-end pool instance is responding to traffic.
description: This module explains what Azure Load Balancer does, how it works, and when you should choose to use Load Balancer as a solution to meet your organization's needs.
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ms.date: 01/12/2024
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author: Orin-Thomas
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ms.author: orthomas
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ms.custom: team=cloud_advocates
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ms.topic: module-intro-to-product
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ms.service: azure-load-balancer
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title: Introduction to Azure Load Balancer
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summary: This module explains what Azure Load Balancer does, how it works, and when you should choose to use Load Balancer as a solution to meet your organization's needs.
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abstract: |
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In this module, you will:
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- Learn what Azure Load Balancer is and the functionality it provides.
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- Determine whether Load Balancer meets the needs of your organization.
description: This module explains what Azure Load Balancer does, how it works, and when you should choose to use Load Balancer as a solution to meet your organization's needs.
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ms.date: 04/30/2025
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author: Orin-Thomas
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ms.author: orthomas
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ms.custom: team=cloud_advocates
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ms.topic: module-intro-to-product
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ms.service: azure-load-balancer
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title: Introduction to Azure Load Balancer
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summary: This module explains what Azure Load Balancer does, how it works, and when you should choose to use Load Balancer as a solution to meet your organization's needs.
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abstract: |
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In this module, you will:
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- Learn what Azure Load Balancer is and the functionality it provides.
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- Determine whether Load Balancer meets the needs of your organization.
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