Are you ready to pass the exam in computer science?

    A year ago, I already wrote about the tasks of the exam in computer science. They were complex, in some places un-ITUCH, provoked mixed reactions and rather interesting discussions.

    Computer science is taught in the amount of 1 lesson per week, 7.5 minutes are assigned to the task. The bulk of schoolchildren has very superficial knowledge, and it is generally difficult to talk about algorithmic thinking, it’s horizons and practical experience in applying information technology.

    New Year, new tasks, new questions for them.

    Exercise 1
    Artist Robot can move one cell up, down, right and left of the field on which the treasure is located. The robot moves if there are no walls in front of it.

    The robot performs the following algorithm.


    What point will be in the way of the robot?

    The task is very interesting, try to solve it, having estimated the time and number of attempts. Point 4 is indicated in the answers. Let's see if you can get this answer.

    Task 2
    In the search engine’s query language, the “!” before the word means that the word must be searched for exactly in the indicated form. Search queries are shown simultaneously issued in the same search engine. Arrange them in increasing order of the number of documents found:

    A. Airplane, airship or train to! Moscow // the exclamation mark after a space and before the word "Moscow", the Habr editor teaches us punctuation, preventing us from writing tasks as
    B. Aeroplan, the airship or train to Moscow
    V. (Airplane | airship | train) & (Moscow)
    G. Airplane & Airship & Train & Moscow

    Tell me, what do you mean by the term “search engine”? After reading the assignment, I had two versions: Yandex / Google or a database with SQL engine. Neither one nor the other option, as far as I can judge, is this “query language” is close.
    In addition, the syntax is generally controversial (comma, brackets, signs of logical operators, Cyrillic without quotes).
    Probably, this refers to a "spherical search engine in a vacuum", the working conditions in which it is proposed to speculate.
    Your version of the answer?

    Task 3
    The robot is similar to the robot from task 1. Select the point from which the robot began to move if it stopped at point X, moving according to the algorithm.


    The task is interesting because of the slightly confused wording and the uncertainty of the behavior of the robot in the event of its bumping into the wall. In the condition and comments - not a word.

    Task 4
    Arrange the fragments of the IP address in the correct sequence

    A. "8.76" B. "9.34" C. ".16" D. “16”

    How many solutions do you see? And how much should a student see?

    Task 5
    The figures show routers, each interface of which has its own IP address. Position them so that you get a route from the node 10.10.1.2

    Do you think this task is close to the realities of SCS? By the way, it follows that the subnet mask of exactly 255.255.255.0 is unclear. Without this assumption, it is generally unknown how to solve.

    Task 6
    To encode the background color of the web page, the attribute bgcolor = ”# XXXXXX” is used, where the quotation marks specify the hexadecimal values ​​of the intensity of the color components in the 24-bit RGB model. What color will the page specified by the body bgcolor = ”# 808000” tag be?
    A. Brown
    B. Gray
    C. Dark red
    D. Blue

    Students are not taught the RGB model and html tags. If you use the information from the task, then you also need to figure out what color will turn out in the mixture. For example, I’m not sure that I know the correct answer. And you? Just do not open a browser or graphical editor, they are not on the exam.

    The general impression of the training assignments (yellow book by Eksmo Publishing House) of the authors Samylkina and Ostrovskaya: too many typos, biases in the subjects of questions, ambiguous formulations. Many questions were perplexing and made it not the problem to be solved, but to guess what the author had in mind.

    It seems to me that testing students on such assignments still does not provide an adequate assessment of their knowledge of school informatics.

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