2011 Computer Postgraduate Examination, 2015 Computer Postgraduate Examination Question Analysis

Computer Postgraduate Examination Review Planning.

Since 2009, the national unified examination for the basic comprehensive courses of computer science has been implemented, and the examination content covers the basic courses of data structure, computer composition principles, operating systems and computer networks. The content of the test paper is structured as follows: 45 points (30%) for data structures, 45 points (30%) for computer composition principles, 35 points (23%) for operating systems, and 25 points (17%) for computer networks.

For computer science majors, most people are not interdistrigent. The four courses involved in the UEC are all courses that we have learned in the course of our university studies. Professional courses should be our strong point compared to public courses, after all, we have studied for four years, and it is a course to improve scores, and we must not lag behind in professional courses.

After the unified examination for computer science, the amount of work in the four courses is quite large, and we should devote a part of our time to this, and the time spent on professional courses and counting one is about the same. The allocation of this time also depends on the individual's basis, and I will discuss it in detail below in general.

The first round: It is generally decided that the postgraduate entrance examination is in the first semester of the third year, and the classes of this semester still have to be taken, so the time for the postgraduate entrance examination will be tighter, and you must carefully study the reference textbooks of these courses in the second semester of the junior year, and do the after-class exercises after reading a chapter. In the process of doing this, you should also take notes to write down important knowledge points and points that you don't understand.

Notes are important to prepare for later rounds of review, otherwise it will affect the progress of later rounds). Students who do not have a good foundation will enroll in a basic class.

The second round: the time is the summer, this time is the best time to prepare for the graduate school entrance examination, about two months, you can devote yourself to review. People of the average level will participate in the summer tutorial class, and they have to digest the content of the tutorial class after class.

If you say your own, you should also strengthen the training on the key and difficult problems. In the review process, we should pay more attention to the data structure and composition principle, because it accounts for a larger proportion, and the corresponding gradient of the real questions will be deeper.

Round 3: The time is the first semester of the senior year. Generally, I will sign up for a sprint class or choose a review book written according to the outline to climb over, increase the amount of comprehensive and focused training, so that my level can be raised to a higher level, refer to the notes of the first and second rounds, and basically all the problems in this round can be solved.

When there is still a month before the exam, you should take a real mock test to fully enter the state of exam emergency training.

All in all, you must control the progress, seize the time, and truly understand and learn the knowledge thoroughly, so that you can be flexible and comfortable in the examination room and get a high score.

Here is a copy of the most complete past exam materials to share with you.

Extraction code: W2WT through continuous research and study of past past questions, for candidates in the sprint stage to review and improve the score of the maze, do the past questions, do the past past question set, check and fill in the gaps against the syllabus, improve the practical literacy, formulate the question strategy, and plan the direction;

If you have any questions about resources, please feel free to ask!

Ahem -- first of all, I want to correct that this question is from 2009 -- not from 2010

Secondly, the correct answer to this question should be C. Here's why:

There are 16 caches in total, which are connected by 2 groups, so there are 8 groups in total, starting from 0, 0 1 2 3 4 5 6 7. A block of main memory is imaged into any block in the cache as module 8. For example, block 1 in main memory is the 0th group of images in the cache.

Now the title tells you that the size of each main memory block is 32 bytes, and what is the block where is unit 129 located? Units 0-31 are in block 0, units 32-63 are in block 1, units 64-95 are in block 2, and units 96-127 are in block 3. It can be seen that the main storage unit 129 is located in the position of block 4 in the main storage.

Now, how many chunks in the main memory should be mirrored into the cache? The answer is obvious, right? 4-on-8 modulo is naturally the fourth block in the cache.

The answer is C

The page size is 2 to the 10th power, the page table entry size is 2 bytes, the secondary page table is used, a page can store 2 to the 9th power page table entries, the logical address space size is 2 to the 16th power of the page, to make the page directory table that represents the entire logical address space contain the least number of table entries, you need 2 to the 16th power 2 to the 9th power = 2 to the 7th power = 128 pages to save the page table entries, that is, the number of pages contained in the page directory is at least 128

Computer science major is more suitable for the Institute of Computing and Software of the Chinese Academy of Sciences. In order to analyze the score line of the 2013 Calculation Institute, you can compare the score line of the re-examination of the Computing Institute and the Software Institute in recent years, and you will have a general understanding: now replace the calculation with (a) and the software with (b).

Computing Institute (a) Software Institute (b).

2008: 355 360 (a low b high).

2009: 338 300 (a high b low).

2010: 313 (more places than '09) 315 (A Low B High).

2011: 365 (10 fewer places than in 10 years) 348 (A High B Low).

2012: 322 328 (a low b high).

According to the analysis of the retest lines of the Institute of Computing (a) and the Institute of Software (B) over the years, the retest line of the Institute of Computing in 2013 should be higher than that of the Institute of Software. The specific number of higher scores depends on the calculation of the enrollment plan, the number of applicants, and the scores of candidates.

If it is difficult to take the postgraduate entrance examination:

1. See if you can get the highest score (high score hope), if the opportunity is good, the retest line will not be so high (313 points in the low year).

2. A and B have a lot of weight in the retest, and they attach great importance to their hands-on ability, and if they have excellent results in the retest, they can be admitted by stepping on the retest line; There are also high scores that are too poor in the retest. Retest ratio