正解:B
IaaS (Infrastructure as a Service) is a cloud computing model that provides on-demand scalable hardware resources, such as servers, storage, network, and virtualization, that are typically housed in the vendor's data center12.
IaaS allows customers to pay only for the resources they use, and to scale up or down as needed, without having to invest in or maintain their own physical infrastructure12.
IaaS is different from other cloud computing models, such as DaaS (Desktop as a Service), PaaS (Platform as a Service), and SaaS (Software as a Service), which provide different levels of abstraction and functionality12.
DaaS delivers virtual desktops to users over the internet, allowing them to access their applications and data from any device3.
PaaS provides a platform for developing, testing, and deploying applications, without having to manage the underlying infrastructure or software.
SaaS delivers software applications over the internet, without requiring installation or maintenance on the user's device. Reference:
[CompTIA Network+ N10-008 Certification Study Guide], Chapter 8: Cloud Computing, Section: Cloud Computing Models
[Professor Messer's CompTIA N10-008 Network+ Course Notes], Page 58: Cloud Computing Models
[CompTIA Network+ N10-008 Certification Study Guide], Chapter 8: Cloud Computing, Section: Desktop as a Service (DaaS)
[CompTIA Network+ N10-008 Certification Study Guide], Chapter 8: Cloud Computing, Section: Platform as a Service (PaaS)
[CompTIA Network+ N10-008 Certification Study Guide], Chapter 8: Cloud Computing, Section: Software as a Service (SaaS) IaaS (Infrastructure as a Service) is a cloud computing model that provides on-demand scalable hardware resources, such as servers, storage, network, and virtualization, that are typically housed in the vendor's data center12.
IaaS allows customers to pay only for the resources they use, and to scale up or down as needed, without having to invest in or maintain their own physical infrastructure12.
IaaS is different from other cloud computing models, such as DaaS (Desktop as a Service), PaaS (Platform as a Service), and SaaS (Software as a Service), which provide different levels of abstraction and functionality12.
DaaS delivers virtual desktops to users over the internet, allowing them to access their applications and data from any device3.
PaaS provides a platform for developing, testing, and deploying applications, without having to manage the underlying infrastructure or software.
SaaS delivers software applications over the internet, without requiring installation or maintenance on the user's device. Reference:
[CompTIA Network+ N10-008 Certification Study Guide], Chapter 8: Cloud Computing, Section: Cloud Computing Models
[Professor Messer's CompTIA N10-008 Network+ Course Notes], Page 58: Cloud Computing Models
[CompTIA Network+ N10-008 Certification Study Guide], Chapter 8: Cloud Computing, Section: Desktop as a Service (DaaS)
[CompTIA Network+ N10-008 Certification Study Guide], Chapter 8: Cloud Computing, Section: Platform as a Service (PaaS)
[CompTIA Network+ N10-008 Certification Study Guide], Chapter 8: Cloud Computing, Section: Software as a Service (SaaS)