Question 1
What is the difference between public, private, and hybrid clouds?
A public cloud is owned and operated by a third-party cloud service provider. A private cloud is used exclusively by one organization. A hybrid cloud combines elements of both public and private clouds.
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Question 2
Explain the concept of virtualization in cloud computing.
Virtualization is the process of creating a virtual (rather than physical) version of something, such as a server, storage device, or network resources. In cloud computing, virtualization enables the efficient use of physical resources by creating virtual instances of them.
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Question 3
What is the role of a hypervisor in virtualization?
A hypervisor, also known as a Virtual Machine Monitor (VMM), is a software or hardware component that allows multiple operating systems to share a single hardware host. It manages and allocates resources to virtual machines.
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Question 4
What is the significance of Load Balancing in a cloud environment?
Load balancing distributes incoming network traffic across multiple servers to ensure that no single server is overwhelmed with too much traffic. It improves the performance, availability, and reliability of applications.
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Question 5
Explain the difference between horizontal and vertical scaling.
Horizontal scaling involves adding more machines or nodes to a system to handle increased load. Vertical scaling involves increasing the resources (CPU, RAM) of an existing machine to handle increased load.
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Question 6
What is serverless computing?
Serverless computing is a cloud computing execution model where the cloud provider manages the infrastructure, automatically allocating resources as needed to execute and scale applications. Developers only focus on writing code without worrying about server management.
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Question 7
What is the difference between scalability and elasticity in cloud computing?
Scalability refers to the ability of a system to handle a growing amount of workload. Elasticity, on the other hand, is the ability to automatically adapt to changing workloads by provisioning and de-provisioning resources dynamically.
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Question 8
Explain the concept of a CDN (Content Delivery Network).
A CDN is a network of distributed servers that work together to deliver web content, such as images and videos, to users based on their geographical location. It improves performance by reducing latency and increasing content availability.
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Question 9
What is the role of a container orchestration tool, and name a popular one.
Container orchestration tools manage the deployment, scaling, and operation of application containers. Kubernetes is a popular container orchestration tool.
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Question 10
Explain the term 'Multi-tenancy' in cloud computing.
Multi-tenancy is a cloud architecture where a single instance of a software application serves multiple customers (tenants). Each tenant's data is isolated and remains invisible to other tenants.
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Question 11
What are the advantages of using serverless architecture in cloud computing?
Serverless architecture offers benefits such as reduced operational complexity, cost savings by paying only for actual usage, and automatic scalability. Developers can focus on code without managing servers.
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Question 12
Explain the difference between stateful and stateless applications.
Stateful applications retain information about the state of a user's interactions, while stateless applications do not store such information between sessions. Stateless applications are often more scalable.
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Question 13
What is a cloud service level agreement (SLA), and why is it important?
A cloud SLA is a contract between a cloud service provider and a customer that outlines the level of service and performance the customer can expect. It is important as it sets expectations and provides a basis for accountability.
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Question 14
Explain the concept of 'BYOD' in the context of cloud computing security.
BYOD (Bring Your Own Device) is a policy that allows employees to use their personal devices to access company networks and data. In the context of cloud computing, it poses security challenges that need to be addressed.
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Question 15
Explain the concept of 'Cloud Bursting' in cloud computing.
Cloud Bursting is the process of moving workloads from a private cloud to a public cloud during periods of high demand. It allows organizations to scale up temporarily when local resources are insufficient.
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Question 16
What are the key considerations for data backup and recovery in the cloud?
Key considerations include regular backups, data encryption, geographic redundancy, and a well-defined recovery strategy. Ensuring data integrity and availability is crucial for business continuity.
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Question 17
Explain the difference between horizontal and vertical scaling in the context of databases.
Horizontal scaling involves adding more database nodes to a system, while vertical scaling involves increasing the resources (CPU, RAM) of an existing database server. Horizontal scaling is often more scalable.
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Question 18
Explain the concept of 'Fault Tolerance' in cloud computing.
Fault tolerance is the ability of a system to continue operating without interruption in the presence of hardware or software failures. Cloud environments use redundancy and failover mechanisms to achieve fault tolerance.
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Question 19
What is 'Immutable Infrastructure' in cloud computing?
Immutable infrastructure is an approach where once an infrastructure component is deployed, it is never modified. Instead, new instances are created with updates, reducing configuration drift and improving consistency.
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Question 20
Explain the concept of 'Blue-Green Deployment' in cloud computing.
Blue-Green Deployment is a strategy where two identical production environments, labeled 'blue' and 'green,' are maintained. Only one environment is active at a time, allowing for seamless updates and rollbacks.
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Question 21
What is the role of a 'Reverse Proxy' in cloud architecture?
A reverse proxy is a server that sits between client devices and a web server, forwarding client requests to the server and returning the server's responses to the clients. It can improve security, performance, and scalability.
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Question 22
Explain the concept of 'Serverless Database' in cloud computing.
A serverless database is a database service that automatically scales, provisions, and manages infrastructure based on the actual usage. Users are charged based on their consumption, and they don't need to manage database servers.
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Question 23
What is 'Infrastructure as Code' (IaC) in cloud computing?
Infrastructure as Code is a practice of managing and provisioning computing infrastructure through machine-readable script files rather than physical hardware configuration or interactive configuration tools.
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Question 24
Explain the concept of 'Data Sovereignty' in cloud computing.
Data sovereignty refers to the concept that data is subject to the laws of the country in which it is located. It is an important consideration for organizations dealing with sensitive or regulated data.
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Question 25
Explain the concept of 'Edge Computing' in cloud architecture.
Edge computing is a paradigm where data processing is performed near the source of data generation rather than relying on a centralized cloud server. It reduces latency and bandwidth usage for time-sensitive applications.
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Question 26
What are the key considerations for data migration to the cloud?
Key considerations include data security, compatibility, bandwidth, downtime, and ensuring data consistency during migration. A well-planned migration strategy is crucial for a successful transition.
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Question 27
Explain the concept of 'Compliance as Code' in cloud security.
Compliance as Code is an approach that uses code and automation to ensure that IT infrastructure adheres to regulatory and security compliance standards. It helps in maintaining a consistent and auditable compliance posture.
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