Internet Services Overview

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What is the primary responsibility of the presentation tier in a typical internet service architecture?

Integrating business-specific processing and dynamic, user-specific content

Dealing with all of the data storage and management

Handling static content related to the webpage layout (correct)

Coordinating communication between the different tiers

Which of the following is a key benefit of using a multiprocess configuration for an internet service architecture?

Improved data security and access control

Easier maintenance and deployment of the service

Reduced communication overhead between tiers

Better handling of high or variable request rates (correct)

What type of communication is required between the different tiers in a multiprocess internet service architecture?

Inter-process communication (IPC) (correct)

Remote procedure calls (RPC)

Direct function calls

Shared memory

Which of the following is NOT typically considered a tier in a standard internet service architecture?

Security tier Signup and view all the answers

How can an internet service be scaled to handle increased request rates?

By running the service on more nodes Signup and view all the answers

Which of the following components can fulfill both the presentation tier and the business logic tier in an internet service architecture?

Apache HTTP web server Signup and view all the answers

What is the fundamental vision for cloud computing?

To turn IT resources into a fungible utility that can be easily repurposed Signup and view all the answers

What is a key limitation of cloud computing mentioned in the text?

Clouds cannot mask hardware dependencies and different provider APIs Signup and view all the answers

What is the key difference between private clouds and public clouds according to the text?

The infrastructure and software is owned by the same entity in private clouds, while in public clouds it belongs to the provider Signup and view all the answers

What is the key difference between IaaS and PaaS according to the text?

IaaS provides physical computing resources directly, while PaaS provides an execution environment with OS and tools Signup and view all the answers

What is the key requirement for cloud computing resources mentioned in the text?

Clouds must provide resources that can be easily repurposed to support different customers Signup and view all the answers

What is the key characteristic of cloud computing resource allocation mentioned in the text?

Cloud resources can be dynamically adjusted to meet changing customer needs Signup and view all the answers

What is the primary benefit of using a hybrid cloud model according to the text?

Hybrid clouds allow users to leverage public cloud resources for failover and spikes in demand Signup and view all the answers

What is the key difference between SaaS and PaaS?

SaaS requires users to manage everything themselves, while PaaS provides an execution environment Signup and view all the answers

What is the primary motivation for the 'computer utility' vision of cloud computing mentioned in the text?

To turn IT resources into a fungible utility that can be easily repurposed Signup and view all the answers

What is the key advantage of community clouds mentioned in the text?

Community clouds are used by certain types of users with specific needs Signup and view all the answers

What is the primary function of a front-end load-balancing component?

To route incoming requests to an appropriate or available machine Signup and view all the answers

In a homogeneous architecture, what is the benefit of having all nodes capable of executing any step in the request processing pipeline?

It simplifies the front-end load balancer's responsibilities Signup and view all the answers

What is a potential downside of a homogeneous architecture?

Limited opportunity to benefit from caching and locality Signup and view all the answers

In a heterogeneous architecture, what is a potential benefit of having nodes specialized for certain tasks or request types?

Improved caching and locality of data Signup and view all the answers

What is a potential drawback of a heterogeneous architecture?

Increased complexity in the front-end load balancer Signup and view all the answers

In the context of a toy shop analogy, what is a limitation of scaling out a homogeneous architecture?

All of the above Signup and view all the answers

What is the purpose of the analogy comparing a toy shop to a homogeneous architecture?

To demonstrate the limitations of scaling out a homogeneous architecture Signup and view all the answers

What is a key factor that determines the need for a heterogeneous architecture?

The complexity of the workload or request types Signup and view all the answers

What was the significant event in 2006 that led to the birth of Amazon Web Services (AWS) and Amazon Elastic Cloud Compute (EC2)?

The opening up of Amazon's hardware resources via web-based APIs Signup and view all the answers

Why did Animoto choose to rent EC2 instances instead of building out their own datacenter?

Because they required about 50 EC2 instances initially Signup and view all the answers

What is one of the primary goals of cloud computing highlighted in the text?

On-demand and elastic resources Signup and view all the answers

Which resource provisioning method allows for the cost to be directly proportional to the demand for services?

Elastic scaling with instantaneous capacity adjustments Signup and view all the answers

What is a common type of billing model used in cloud computing services?

Billing by discrete step functions like 'size' Signup and view all the answers

Which principle behind cloud computing suggests that a provider can support multiple clients with varying peak loads?

Economies of scale Signup and view all the answers

Why do cloud providers use discrete step functions for billing instead of raw usage charges?

To reduce overheads associated with monitoring raw usage Signup and view all the answers

What is the primary reason for the need to manage cloud resources at a very large scale?

To support a large number of customers and their resource demands Signup and view all the answers

Which of the following is NOT a key requirement for effective cloud management mentioned in the text?

Providing guaranteed uptime and zero downtime for all cloud services Signup and view all the answers

Which of the following technologies is NOT mentioned as being important for cloud computing?

Proprietary cloud management platforms like VMware vSphere Signup and view all the answers

Which component is typically included in cloud computing platforms to enable efficient data access and manipulation at scale?

NoSQL databases and distributed in-memory caches Signup and view all the answers

Which of the following is NOT a typical component of a cloud-based big data processing platform?

A proprietary database management system Signup and view all the answers

What is the primary benefit of cloud computing for big data processing?

Access to potentially infinite resources for resource-intensive problems Signup and view all the answers

Which of the following is NOT typically included in cloud-based big data processing platforms, according to the text?

A distributed database management system Signup and view all the answers

What is the primary reason for incorporating monitoring technologies in cloud computing platforms?

To regulate cloud resources and provide visibility to cloud providers and customers Signup and view all the answers

Which of the following is NOT a requirement for cloud computing technologies mentioned in the text?

Supporting real-time data processing and analysis Signup and view all the answers

Which technology is used in cloud computing for storing and accessing data in an "append only" mode?

Distributed filesystems Signup and view all the answers