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What is the main responsibility of the customer when using cloud databases?
Which statement accurately describes the design goal of cloud storage systems?
What feature of Virtual Machines allows multiple instances to operate on a single physical machine?
What is a key advantage of cloud computing in terms of resource management?
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Which characteristic enables users to provision services without necessitating human intervention?
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Which type of cloud computing application is NOT typically possible with the right middleware?
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How are various VM images handled in cloud computing?
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What is a major difference between traditional computing and cloud computing regarding software?
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What characteristic is NOT typical of cloud storage systems?
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What payment model is typically associated with cloud computing?
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Which of the following describes a typical benefit of cloud-based backup systems?
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In which category are most cloud databases divided?
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How does collaboration differ between traditional computing and cloud computing?
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What is a notable advantage of using cloud computing for applications?
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Which of these platforms is recognized as a popular cloud computing service provider?
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What is an example of a resource that can be accessed in cloud computing?
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What is a key characteristic of a hybrid cloud model?
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Which deployment model is best for highly sensitive data?
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What is a disadvantage of the public cloud?
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Which payment model is characterized by consistent long-term pricing?
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What is a notable feature of the dynamic pricing model?
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What role do cloud clients serve in a cloud deployment?
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Which of the following is NOT an advantage of using a public cloud?
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Which payment model is typically NOT associated with cloud services?
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What is a Local Zone in AWS?
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Which of the following is NOT a step to create an AWS account?
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What does the Basic Support plan in AWS provide?
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Which identifier follows the Region code for a Local Zone?
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What must be done after entering payment information during AWS account creation?
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Which AWS support plan is recommended for testing and experimentation?
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What is a key feature of the AWS Personal Health Dashboard?
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When choosing the type of AWS account, what remains the same regardless of the selection?
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What is the primary purpose of an Elastic IP address?
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Which steps are involved in associating an Elastic IP address with an EC2 instance?
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What does Amazon S3 primarily provide for data storage?
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How does Amazon S3 ensure data durability?
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What feature does Amazon S3 provide to manage permissions and access to data?
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What is a primary use case for Amazon EBS volumes?
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What happens when you create a snapshot of an EBS volume?
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How can users reduce costs when using Amazon S3?
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Study Notes
Introduction to Cloud Computing
- Cloud computing is the manipulation, configuration, and access of applications over the internet.
- Cloud computing offers online data storage, infrastructure, and application services.
- Cloud computing combines hardware and software to deliver services to users.
- Cloud users can provision and release resources on-demand.
- Cloud resources scale up or down automatically based on load.
- Cloud resources are accessible over a network with security measures in place.
- Users are charged based on resource type and usage.
- Popular Cloud Platforms are AWS, Azure, and Google Cloud.
Traditional vs Cloud Computing
- Software: Traditional computing involves installing software on a local computer, while cloud computing delivers software as services over the internet.
- Access: Traditional computing requires access through local computers, while cloud computing allows access through the internet.
- Upgrades: Traditional computing involves manual and complex software upgrades, while cloud computing provides automatic and effortless upgrades.
- Versions: Traditional computing requires maintaining multiple software versions, while cloud computing utilizes a single codebase with no infrastructure maintenance required.
- Hardware: Traditional computing requires users to purchase, maintain, and manage their hardware. Cloud computing enables users to pay only for the resources they need.
- Collaboration: Collaboration in traditional computing is limited, while cloud computing allows teams to work together from various locations.
Characteristics of Cloud Computing
- On-demand self service/Flexibility: Cloud computing provides services like email, applications, networks, and servers without human interaction.
- Disaster Recovery: Cloud-based backup and recovery solutions offer faster recovery times, reduce initial investments, and provide access to third-party expertise.
Cloud Delivery Models
- Public Cloud: Connected via the internet; offers user-friendly interfaces and low costs but may have security concerns.
- Private Cloud: Connected via the company intranet; offers strong security and control but requires higher initial investment.
- Community Cloud: Meant for shared concerns; offers cost savings and control over on-premise storage.
- Hybrid Cloud: A mix of public, private, and possibly community clouds. This model can be complex and requires careful management of security and data transfers.
Payment Models in Cloud
- Static/Fixed Pricing: Involves stable long-term prices with costs being determined by the cloud provider.
- Dynamic Pricing: Prices fluctuate dynamically based on market conditions or status and are not widely used by cloud services.
Cloud Components
- Cloud Clients: Include interfaces, applications, and networks that enable access to cloud systems.
- Machines in the Cloud (VM): Cloud providers allow users to create and deploy Virtual Machines (VMs) in the cloud.
- Storage in the Cloud: Includes hosted object storage and block storage services.
- Databases in the Cloud: The provider maintains the physical infrastructure and database, while users manage the data content and operation.
- Applications in the Cloud: Cloud providers offer a range of applications, enabling the execution of programs usually run on a local computer.
Machines in the Cloud
- Virtual Machine (VM) images are stored in cloud storage.
- Users can create multiple VM images as needed.
- VM instances can be automatically started and stopped based on demand.
Storage in the Cloud
- Cloud storage systems are designed to be distributed and redundant.
- Highly fault tolerant through redundancy and data distribution.
- Highly durable through the creation of versioned copies.
Databases in the Cloud
- The provider maintains the infrastructure and database software, leaving users to manage their data.
- Cloud databases can be categorised into relational and non-relational types.
Applications in the Cloud
- Cloud computing applications are diverse and can perform functions typically managed by local computers.
- Specific geographical instances can be chosen within a region.
Region, Availability Zone & Local Zone
- Availability Zones: Data centres within a region that offer geographic isolation.
- Region: A collection of data centres geographically dispersed.
- Local Zone: A new type of AWS infrastructure that offers low latency, placed closer to user populations.
Creating an AWS Account
- Access the AWS account creation form at https://aws.amazon.com/.
- Provide account information and choose "Continue".
- Select the account type (personal or professional).
- Enter company or personal information as appropriate.
- Accept the AWS Customer Agreement.
- Verify your email address by clicking on the link provided in the confirmation email.
- Provide payment details and secure Submit.
- Verify your phone number using SMS or call.
- Choose a support plan.
AWS Support Plans
- Basic Support: Available to all AWS customers; includes access to customer service, documentation, whitepapers, support forums, AWS Trusted Advisor, and the AWS Personal Health Dashboard.
- Developer Support: Suitable for experimental or testing purposes.
- Business Support: Recommended for production workloads.
Amazon Simple Storage Service (Amazon S3)
- A web service for storing and retrieving data from anywhere on the web.
- Offers 99.999999999% durability and is used by various industries.
- Data is redundantly stored across multiple facilities and devices.
- Supports SSL data transfer and automatic encryption of uploaded data.
- Offers bucket policies for managing object permissions and controlling access.
- Enables storage of large amounts of data at low costs.
- Allows data migration to different storage tiers (Standard - Infrequent Access and Amazon Glacier) to reduce costs.
- Provides options for hosting static websites.
- Stores data in buckets, which contain data and metadata.
Amazon Elastic Block Store (Amazon EBS)
- Persistently stores data in volumes for use with Amazon EC2 instances.
- Offers high availability and durability through automatic replication within its Availability Zone.
- Enables quick scaling of storage usage.
- Provides flexible access control policies for secure data management.
- Offers data protection via snapshots, which are backed up to Amazon S3 for long-term durability.
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Description
Explore the fundamentals of cloud computing, including its services, access methods, and advantages over traditional computing. This quiz covers key concepts such as resource provisioning, scalability, and popular cloud platforms like AWS and Azure.
