Google Cloud Compute Engine and VPC Overview
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Questions and Answers

Which feature distinguishes Application Load Balancers from Network Load Balancers?

  • Connection termination for backend services
  • Direct forwarding of traffic without modification
  • Operation at the application layer (layer 7) (correct)
  • Ability to handle TCP and UDP traffic

What is a primary function of Proxy Load Balancers?

  • Terminate client connections and establish new ones (correct)
  • Operate exclusively with HTTP traffic
  • Directly forward traffic to backend services
  • Provide a static IP address for backend connections

What aspect of Passthrough Load Balancers makes them suitable for certain applications?

  • Exclusive routing for HTTPS traffic
  • Ability to modify original IP address
  • Offering advanced traffic distribution rules
  • No connection termination, preserving original source IP (correct)

Which layer do Network Load Balancers primarily operate at?

<p>Layer 4 (B)</p> Signup and view all the answers

What is one of the main benefits of using Application Load Balancers?

<p>Content-based routing capabilities (D)</p> Signup and view all the answers

Which of the following statements is true regarding the Global DNS provided by Google, notably 8.8.8.8?

<p>It provides public DNS services to the world (C)</p> Signup and view all the answers

What type of applications typically benefit from using Proxy Load Balancers?

<p>Web applications needing advanced traffic management (B)</p> Signup and view all the answers

Which of the following is NOT a type of load balancer mentioned?

<p>Virtual Load Balancer (B)</p> Signup and view all the answers

What is the primary purpose of tagging web servers in a VPC?

<p>To establish firewall rules for traffic management (B)</p> Signup and view all the answers

Which method allows VPCs in different Google Cloud projects to communicate with each other?

<p>VPC Peering (C)</p> Signup and view all the answers

What feature of Cloud Load Balancing helps manage fluctuating user traffic?

<p>Traffic distribution across multiple instances (B)</p> Signup and view all the answers

What kind of traffic can Cloud Load Balancing handle?

<p>HTTP, TCP, and UDP traffic (B)</p> Signup and view all the answers

Which scenario requires the use of a Shared VPC?

<p>When there is a need for strict IAM control across projects (C)</p> Signup and view all the answers

Which of the following best describes Cloud Load Balancing?

<p>A fully distributed, managed software-defined service (C)</p> Signup and view all the answers

What component is crucial for handling user traffic in applications with varying VM counts?

<p>Load Balancer (A)</p> Signup and view all the answers

What is the primary function of firewall rules in a VPC environment?

<p>To permit or deny traffic based on set conditions (A)</p> Signup and view all the answers

What feature allows Cloud Load Balancing to manage user traffic when backend servers become unhealthy?

<p>Automatic multi-region failover (C)</p> Signup and view all the answers

Which type of load balancer is specifically designed for handling HTTP and HTTPS traffic?

<p>Application Load Balancer (D)</p> Signup and view all the answers

What is NOT a requirement when anticipating a spike in traffic with Cloud Load Balancing?

<p>Filing a support ticket (C)</p> Signup and view all the answers

What layer of the OSI model primarily pertains to Network Load Balancing?

<p>Transport Layer (A)</p> Signup and view all the answers

Which characteristic of Cloud Load Balancing best describes its ability to handle traffic across multiple regions?

<p>Cross-region load balancing (A)</p> Signup and view all the answers

What allows Cloud Load Balancing to react quickly to changes in traffic and user demands?

<p>Dynamic response mechanisms (B)</p> Signup and view all the answers

In what scenario would you use an Internal Load Balancer?

<p>To balance traffic among internal services (B)</p> Signup and view all the answers

Which functionality does NOT pertain to the Application Load Balancer?

<p>Managing TCP flights (D)</p> Signup and view all the answers

What is a primary benefit of using Cloud Load Balancing without needing pre-warming?

<p>Faster response to anticipated traffic spikes (D)</p> Signup and view all the answers

Flashcards

What is Cloud Load Balancing?

A service that distributes incoming traffic across multiple backend servers, ensuring optimal performance and availability.

Application Load Balancer

A type of load balancer that operates at the application layer (layer 7) and handles HTTP and HTTPS traffic. Ideal for web applications and services that require advanced features like content-based routing and SSL/TLS termination.

How does Cloud Load Balancing handle scaling and maintenance?

Cloud Load Balancing doesn't run on virtual machines (VMs) that you need to manage. Google handles the scaling and maintenance for you.

What types of traffic can Cloud Load Balancing handle?

It can handle various types of traffic, including HTTP(S), TCP, SSL, and UDP.

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Network Load Balancer

A type of load balancer that operates at the transport layer (layer 4) and handles TCp, UDP, and other IP protocols.

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What is cross-region load balancing and how does it work?

Cloud Load Balancing can distribute traffic across multiple regions, providing automatic failover if one region becomes unavailable.

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Proxy Load Balancer

A type of Network Load Balancer that functions as a reverse proxy, terminating client connections and establishing new ones to backend services. Offers advanced traffic management capabilities and supports backends both on-premises and in various cloud environments.

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Passthrough Load Balancer

A type of Network Load Balancer that directly forwards traffic to the backend without modifying or terminating connections. Preserves the original source IP address. Suitable for applications needing direct server return or handling a wide range of IP protocols.

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How does Cloud Load Balancing react to changes in traffic or server health?

Cloud Load Balancing automatically adjusts to changing traffic patterns, server health, and network conditions.

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How does Cloud Load Balancing handle anticipated traffic spikes?

You don't need to manually inform Google about anticipated traffic spikes. Cloud Load Balancing handles it automatically.

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Virtual Private Cloud (VPC)

A virtual, isolated network that allows you to organize and control your virtual machines (VMs) and other resources running in the cloud. It's like your own private cloud within a larger public cloud.

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What is an Application Load Balancer?

The type of load balancer that operates at the application layer and handles HTTP and HTTPS traffic.

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Compute Engine

Google's service allowing you to create and manage virtual machines (VMs) in the cloud. You can deploy and run a variety of applications like websites, databases, and games on these virtual machines.

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Scaling virtual machines

The process of automatically scaling the number of virtual machines up or down to handle changes in workload demand. This ensures you have the right resources at the right time to meet your needs.

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What is a Network Load Balancer?

The type of load balancer that operates at the network layer and handles TCP, UDP, and other IP protocols.

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What is a Regional Network Load Balancer?

A Network Load Balancer that operates within a region.

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Cloud Domain Name Service

The service provided by Google that allows you to easily manage DNS records and serve your websites and services to users around the world. It's like a directory for the internet.

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What is a Cross-region Network Load Balancer?

A Network Load Balancer that operates across multiple regions, providing automatic failover between regions.

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VPC Peering

VPC peering allows communication between two VPCs in different Google Cloud projects by establishing a relationship to exchange traffic.

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Shared VPC

Shared VPC gives a project access to resources in a different project's VPC with granular control through Identity and Access Management (IAM).

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VPC networking

Virtual Private Cloud (VPC) networking allows you to create private networks in Google Cloud, isolating and controlling your resources within a secure environment.

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Cloud Load Balancing

Cloud Load Balancing distributes traffic across multiple instances of an application to prevent performance issues, ensuring a smooth user experience.

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Types of traffic managed by Cloud Load Balancing

Cloud Load Balancing can handle different types of traffic, including HTTP(S), TCP, SSL, and UDP, providing comprehensive traffic management across your applications.

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Important VPC compatibilities

To ensure seamless integration and compatibility, Cloud Load Balancing, Cloud Domain Name Service, Cloud Content Delivery Network, and external networks must be compatible with Google VPC.

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Study Notes

Google Cloud Compute Engine

  • Google Compute Engine (GCE) is Google Cloud's IaaS solution
  • Users can create and run virtual machines (VMs) on Google infrastructure
  • No upfront investments, high CPU counts
  • VMs are fully functional operating systems
  • Configurable like physical servers (CPU, memory, storage, OS specifications)

Virtual Private Cloud (VPC)

  • VPC is a secure, individual, private cloud-computing model hosted within a public cloud
  • Customers can run code, store data, host websites on a VPC
  • Combines public cloud scalability with private cloud data isolation
  • VPC networks connect Google Cloud resources to each other and the internet

VPC networks

  • VPC networks are global
  • Subnets can span zones within a region, allowing global scope and within-subnet resilience
  • Subnets can span zones within the same region
  • Subnet size is adjustable (IP address ranges) without impacting configured VMs

Virtual Machine Instances

  • VMs can be created via console, Cloud CLI, or API
  • Can run Linux, Windows Server images, and user-defined OS versions
  • Flexible resources with reconfiguration capabilities

Cloud Marketplace

  • A quick way to get started on GCP
  • Offers solutions from various vendors (Google & 3rd parties)
  • No manual configurations involved (storage, networking, etc.)
  • Most packages are free, some with usage charges (estimates provided)

Compute Engine Pricing and Billing

  • Billing is per second with a minimum of 1 minute
  • Sustained-use discounts offered for consistent VM usage greater than 25% of a month
  • Committed-use discounts available (57%) for consistent vCPUs and memory usage for 1 or 3 years
  • Preemptible and Spot VMs for cost-effective workloads that can be restarted (up to 90% savings possible)
  • Preemptible VMs have a maximum runtime of 24 hours
  • Spot VMs do not have a maximum runtime.

Storage Options

  • Compute Engine storage doesn't require specific options for high throughput with persistent disks
  • Several storage option types available, including Zonal persistent disk, Regional persistent disk, Local SSD, Cloud Storage buckets, and Filestore.
  • Storage options vary with price and performance characteristics

Cloud Load Balancing

  • Distributes user traffic across multiple application instances
  • Reduces the risk of performance issues by spreading the load

Cloud Load Balancing Options

  • Fully distributed, software-defined, managed service for all traffic (HTTP(S)/TCP/SSL/UDP)
  • No VM management required
  • Includes automatic multi-regional failover
  • Adapts quickly to user, traffic, and network changes
  • No pre-warning for traffic spikes are needed

Application Load Balancing

  • Layer 7 load balancing for HTTP(S) traffic
  • Handles advanced features like content-based routing and SSL/TLS termination (high flexibility)
  • Operates as a reverse proxy

Network Load Balancers

  • Supports different protocols (TCP, UDP, other IPs)
  • Efficiently handles traffic distribution

Partner Interconnect

  • Offers connectivity between on-premises and VPC networks through a supported service provider
  • Supports mission-critical applications with some downtime tolerance
  • Available at 10 Gbps and 100 Gbps speeds

Cross-Cloud Interconnect

  • Establishes high-bandwidth dedicated connectivity between Google Cloud and another cloud provider
  • Supports integration with other cloud environments

Cloud DNS

  • Manages DNS resolution for applications hosted on Google Cloud Platform
  • Offers low latency and high availability (runs on same infrastructure as Google)
  • Programmable, user-controlled DNS zones and records using console, CLI, or API

Cloud CDN

  • A global system of edge caches that stores and delivers content to end users
  • Provides lower network latency and reduced load for origins of content
  • Enables with a single checkbox after Load Balancer configuration
  • Can be used in conjunction with existing CDN solutions

VPC Networking

  • Connects Google resources (Compute Engine, Cloud CDN)
  • Features include routing tables and firewalls

VPC Peering

  • Establishes relationships between two VPCs for traffic exchange

Quiz Questions and Answers

  • Quiz Question 1: Subnets in Google Cloud VPCs have a regional scope.
  • Quiz Question 2: The primary reason for choosing Preemptible/Spot VMs is to reduce cost.
  • Quiz Question 3: Dedicated Interconnect is the only option available with a Service Level Agreement.
  • Quiz Question 4: Cloud Load Balancing distributes HTTP-based traffic across multiple virtual machine instances in a single Compute Engine region.

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Related Documents

Module 3 Virtual Machines and Networks in the Cloud PDF

Description

Explore the essentials of Google Cloud's Compute Engine and Virtual Private Cloud (VPC). This quiz covers the creation and management of virtual machines, VPC networks, and their key functionalities within the cloud infrastructure. Test your understanding of IaaS solutions and cloud computing models.

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