Podcast
Questions and Answers
What is the main characteristic of a public cloud?
What is the main characteristic of a public cloud?
- Made available to the general public (correct)
- Composition of two or more clouds
- Used for Cloud Bursting
- Accessible to authorized clients only
In cloud computing, what is the purpose of a hybrid cloud?
In cloud computing, what is the purpose of a hybrid cloud?
- Composition of two or more clouds
- Resource quota management
- Load balancing between clouds (correct)
- Virtual workspace abstraction
What is the role of a hypervisor in virtualization?
What is the role of a hypervisor in virtualization?
- Intercepting and emulating instructions from VMs (correct)
- Execution environment abstraction
- Dynamic availability to clients
- Management of virtual machines
Which technology enables multiple virtual machines to run on a single physical machine?
Which technology enables multiple virtual machines to run on a single physical machine?
What does a virtualized stack in a data center consist of?
What does a virtualized stack in a data center consist of?
How are cloud and virtualization technologies related?
How are cloud and virtualization technologies related?
What are some advantages of virtual machines mentioned in the text?
What are some advantages of virtual machines mentioned in the text?
Why is cloud-sourcing becoming important according to the text?
Why is cloud-sourcing becoming important according to the text?
What are some concerns related to cloud-sourcing mentioned in the text?
What are some concerns related to cloud-sourcing mentioned in the text?
Why are several large Web companies now offering cloud storage services as per the text?
Why are several large Web companies now offering cloud storage services as per the text?
Which of the following is not mentioned as an advantage of using virtual machines in the text?
Which of the following is not mentioned as an advantage of using virtual machines in the text?
What is one of the concerns raised about cloud-sourcing in the text besides privacy and security?
What is one of the concerns raised about cloud-sourcing in the text besides privacy and security?
What is the main focus of Cloud Security?
What is the main focus of Cloud Security?
Which term refers to a field of computing science that studies distributed systems?
Which term refers to a field of computing science that studies distributed systems?
What is a key characteristic of a Distributed System?
What is a key characteristic of a Distributed System?
Which computing model involves multiple computational entities communicating through message passing?
Which computing model involves multiple computational entities communicating through message passing?
What is the primary focus of Infrastructure Security in Cloud Computing?
What is the primary focus of Infrastructure Security in Cloud Computing?
What differentiates Centralized Computing from Distributed Computing?
What differentiates Centralized Computing from Distributed Computing?
Study Notes
Cloud Computing
- Public cloud: cloud infrastructure made available to the general public, e.g., Google Doc, Spreadsheet
- Hybrid cloud: composition of two or more clouds (private, community, or public), e.g., Cloud Bursting for load balancing between clouds
Virtualization and Virtual Workspaces
- Virtual Workspaces: abstraction of an execution environment, dynamically available to authorized clients using well-defined protocols
- Resource quota: e.g., CPU, memory share
- Software configuration: e.g., OS
- Implement on Virtual Machines (VMs): abstraction of a physical host machine, hypervisor intercepts and emulates instructions from VMs, and allows management of VMs
- Examples of VM software: VMware, Xen, KVM
Virtual Machines
- VM technology allows multiple virtual machines to run on a single physical machine
- Guest OS: e.g., Linux, NetBSD, Windows
- Hypervisor: e.g., Xen, VMware Virtual Machine Monitor (VMM)
Advantages of Virtual Machines
- Run operating systems where the physical hardware is unavailable
- Easier to create new machines, backup machines, etc.
- Software testing using “clean” installs of operating systems and software
- Emulate more machines than are physically available
- Timeshare lightly loaded systems on one host
- Debug problems (suspend and resume the problem machine)
- Easy migration of virtual machines (shutdown needed or not)
- Run legacy systems
Cloud-Sourcing
- Importance: using high-scale/low-cost providers, any time/place access via web browser, rapid scalability, incremental cost and load sharing
- Concerns: performance, reliability, and SLAs, control of data, and service parameters, application features and choices, interaction between Cloud providers, no standard API, privacy, security, compliance, trust
Cloud Storage
- Large Web companies exploiting excess data storage capacity for hire
- Allows data stored remotely to be temporarily cached on devices
Cloud Security
- Infrastructure Security
- Data security and Storage
- Identity and Access Management
- Access Control, Trust, Reputation, Risk
Trends in Computing
- Distributed Computing
- Grid Computing
- Cluster Computing
- Utility Computing
- Cloud Computing
- Fog Computing
Distributed Computing
- Field of computing science that studies distributed systems
- Use of distributed systems to solve computational problems
- Distributed system: autonomous computational entities, each with its own local memory, communicating with each other by message passing
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge on cloud computing concepts such as public cloud, hybrid cloud, and virtual workspaces. Learn about different cloud infrastructures and their applications in the technological landscape.
