HS code-driven procurement strategies

List of contents of this article:

• 1, What are the morning question types for embedded system designers?
• 2
  、The basic composition of ARM-Linux embedded system, the role of each part_arm embedded linux system development...
• 3, Should embedded system designers take the exam in the first half of the year or the second half of the year?
• 4, What are the knowledge points of the system architecture designer exam?

What are the morning question types for embedded system designers?

1. The morning exam for embedded system designers is a basic knowledge subject, including 75 objective multiple-choice questions, 1 point per question, and a total score of 75 points. The exam time for the basic knowledge of embedded system designers is from 9:00 a.m. to 11:30 a.m., and the duration of the exam is 150 minutes.

2. Embedded system designer includes two examination subjects, and the examination form of each subject is a written examination.The full score of each subject of embedded system designer is 75 points. The examination time is arranged in the morning and afternoon respectively. The question types of the morning exam are different from those of the afternoon exam.

3. The composition of embedded systems and microelectronic technology (the role and development of integrated circuits, SoC, IP core and other technologies). Digital media basics (the representation and processing of digital media such as text, images and audio/video).

The basic composition of ARM-Linux embedded system, the role of each part_arm embedded linux system development...

1. Hardware platform: such as the main chip ARM, as well as Ethernet, USB, LCD screen driver circuit, etc. Peripherals: such as keyboard, mouse, camera, LCD screen. System: In fact, Linux embedded linux is just a simplified pclinux, which has only deleted some redundant things.

2. Typical embedded system, the software part is from bottom to top, respectively boot, kernel, rootfs, fsimg and upper applications.The functions are to boot the kernel, start the kernel, mount the root file system, mount the actual file system, and open the main loop of the upper application.

3. Basic composition of ARM-Linux embedded system: bootloader: BootLoader runs before the operating system kernel runs. Hardware devices can be initialized and memory space maps can be established, so as to bring the software and hardware environment of the system to a suitable state in order to prepare the correct environment for the final call of the operating system kernel.

4. Discuss the basic composition and the role of each part of the Arm-linux embedded system? The basic composition of the ARM-Linux embedded system: bootloader: BootLoader runs before the operating system kernel runs.

5. Be familiar with embedded ARM development, and at least master Linux character driver development. I have the ability to transfer and develop single-chip microcomputers and ARM embedded processors, understand hardware schematics, be able to independently complete relevant hardware driver debugging, have solid hardware knowledge, and be able to write software drivers according to the chip manual.

Should embedded system designers take the exam in the first half of the year or the second half of the year?

1. Embedded system designer belongs to the intermediate qualification examination of soft examination. It is only taken once a year and is scheduled to take the exam in November in the second half of the year. The soft examination embedded system designer examination implements the national unified outline, unified test questions, unified time, unified standards and unified certificates.

2. Month or November. The soft examination for embedded system designers has an exam once a year. The first half of the soft examination will be held in late May, and the second half of the year will be in early November. The specific examination time is not fixed every year. The soft examination of embedded system designers arranges an exam once a year.

3. Embedded system designer belongs to the soft exam. The soft exam has two exams a year, arranged in the first half and the second half of the year respectively. The registration time and registration methods for embedded system designers in each province are also different. Most areas can register through the China Computer Technology Professional Qualification Network.

What are the knowledge points of the system architecture designer exam?

1. Software requirementsThe grid describes SRS, and the content can include system (or subsystem) name, function description, interface, basic data structure, performance, design requirements, development standards, acceptance principles, etc. Software development period The software development period is the design and implementation of software, outline design, detailed design, coding, testing, etc.

2. System architecture designer (referred to as "Architect") is a technician who finally confirms and evaluates system requirements, gives development specifications, builds a core framework for system realization, and clarifies technical details and clears up the main difficulties.

3. Proficient in using Linux operating system. Familiar with the tcp protocol, the whole process of creating three handshakes for connections and four handshakes for disconnection. If you don't understand it, you can't optimize high-concurrency network applications; be familiar with hTtp protocol, especially the life cycle of http header, session and cookie and the relationship between them.

4. System architecture designer belongs to the soft examination advanced qualification examination. The thesis subject of system architecture designer is scheduled to be examined in the afternoon. The thesis examination is a writing question, with a full score of 75 points, and the qualification standard of the thesis subject is basically stable at 45 points.

5. System architecture designer belongs to the soft exam, which includes three subjects. The elementary and intermediate soft examinations include two examination subjects: basic knowledge and applied technology. The advanced soft examination includes three examination subjects: comprehensive knowledge, case analysis and thesis. Each subject is arranged in one day, and the examination time is arranged in the morning and afternoon respectively.

6. Examination question types for each subject of system architecture designer(1) Comprehensive knowledge of information system, the examination time is 150 minutes, written examination, multiple-choice questions; (2) System architecture design case analysis, examination time is 90 minutes, written examination, questions and answers; (3) System architecture design thesis, examination time is 120 minutes, written examination, thesis questions.