- Cloud computing service architecture SaaS, PaaS, IaaS corresponding respectively ().
Answer. Application layer, platform layer, infrastructure layer
- (2022) Given a relational schema R(U,F), where U is an attribute set and F is a set of functional dependencies of U, then the decomposition rule in the axiom system (Armstrong) of functional dependencies means () is implied by F.
- (2022)
The title is a natural connection, so the obtained value is
RA、RB、RC、RD、SE、SF
In option B, 1=5 and 3=6, it means RA = SA of Cartesian product, RC=SC
2>7 means B>E
Finally, because there are 6 values in the title, option B also filters 123478
Answer choice B
- The AI chip is the core technology of the current development of artificial intelligence technology, and its capabilities must support training and reasoning. Generally, the technical architecture of the AI chip includes three types: ().
- GPU、FPGA、ASIC
- CPU、FPGA、DSP
- GPU、CPU、ASIC
- GPU、FPGA、SOC
Answer: A
Parse:
GPU graphics processors, FPGA programmable gate arrays, ASIC ultra-large-scale integrated circuits, and high-end chips all use these three architectures, including artificial intelligence.
- Message middleware mainly provides system services by a group of objects, and the objects can communicate across platforms.
This sentence is wrong, it should say:
Distributed middleware mainly provides system services by a group of objects, and objects can communicate across platforms.
- The email client initiates a TCP connection to () port () of the server to send the email.
- POP3 110
- SMTP 25
- HTTP 80
- IMAP
Answer choice B
Parse:
Mail accepts POP3, 110
Mail sending SMTP 25
- Different from UML1.X, in order to express the structure of UML more clearly, starting from UML2, this UML specification is divided into two relatively independent parts, the basic structure and the superstructure. The basic structure is UML (), which defines the construction of UML models Various basic elements, from the upper structure defines the syntax, semantics and representation of various UML models for model modeling users.
Answer: Metamodel
- In UML2.0, sequence diagrams are used to describe message interactions between objects, in which complex interactions such as loops and selections are represented by ().
Answer: Sequence Fragments
- Among the typical solutions for building models on the server side, () is more suitable for application servers.
- EJB and COM+ Model
- EJB and Servlet Model
- COM+ and ASP Model
- COM+ and the Servlet Model
Answer choice A
Parse:
Divided into web server and application server, EJB belongs to the category of application server, and servlet belongs to the category of web server, not application and server.
- In the description and modeling of software architecture, multi-view is an important way to describe the architecture, which embodies the idea of ( ). Among them, the 4+1 model is a commonly used type to describe software systems, and "1" refers to (). (2022)
Answer:
Separation of concerns Unified scene