They can interact with the virtual community from the()of their own home.
A.suddenly
B.usually
C.seldom
A.suddenly
B.usually
C.seldom
The IoT architecture can be divided into three layers.()is the key layer to realize the foundational capabilities which support the electronic devices interact with physical worl
A.
B.Sensing layer
C.Network layer
D.Application layer
E.Operation layer
User programs interact with the kernel through a set of standard(71). They request services to be provided by the kernel. Such services would include accessing a file: open close, read, write, link, or execute a file; starting or(72)accounting records; changing ownership of a file or(73); changing to a new directory; creating,(74), or killing a process; enabling access to hardware devices; and setting limits on system resources. Unix is a multi -user, multi -tasking operating system. You can have many users logged into a system simultaneously, each running many programs. It's the kernel's job to keep each process and user separate and to regulate access to(75), including cpu, memory, disk and other L/O devices.
A.system commands
B.system transfer
C.system calls
D.system rings
●The traditional model for systems development was that an IT department used (71)which is a process-centered technique, and consulted users only when their input or approval was needed. Compared with traditional methods, many companies find that JAD allows key users to participate effectivelyin the (72). When properly used, JAD can result in a more accurate statement of system requirements, a better understanding of common goals and a stronger commitment to the success of the new system. RAD is a team-based technique that speeds up information systems development and produces a functiog.information system. Whilethe end productof jAD is a(an)(73),theendproduct of RAD is the (74) .The RAD model consists offour phases. During the(75),users interact with systems analysts and develop models and prototypes that represent all system processes, outputs, and inputs.
(71) A. structured analysis
B. object-oriented analysis
C. prototype analysis
D. process analysis
(72) A. initial scope definition
B. requirements modeling process
C. object modeling process
D. architecture design process
(73) A. data flow diagram
B. entity relationstip model
C. requirements model
D. object model
(74) A. system proposal
B. system design model
C. new system architecture
D. new information system
(75) A. requirements planning phase
B. user design phase
C. construction phase
D. cutover phase
● The user must interact with the (74) in order to accomplish task.
(74)
A. printer
B. memory
C. CPU
D. operating system
The user must interact with the (74) in order to accomplish task.
A.Printer
B.memory
C.CPU
D.operation system
A.Develop Schedule
B.Estimate Activity Resources
C.Define Activities
D.Sequence Activities
A.Class diagram
B.Component diagram
C.Sequence diagram
D.Use case diagram
A.45.5%.
B.2:2.
C.$60,000.
D.$160,000
A.the largest
B.the second largest
C.the third largest
D.the fourth largest