{
    "q1": {
        "type": "multiple", 
        "question": "\n<strong>\n\nAfter a <code>fork()</code>, both the parent and the child processes are\nalmost exactly the same except they have different (choose all that apply):\n\n</strong>\n", 
        "responses": {
            "registers": "Registers", 
            "code": "Program code", 
            "pid": "Process identifiers (PID)", 
            "uid": "User identifier (UID)", 
            "address": "Address spaces"
        }
    }, 
    "q3": {
        "type": "multiple", 
        "question": "<strong>\n\nWhat happens during an <code>exec()</code> system call (choose all that apply)?\n\n</strong>\n", 
        "responses": {
            "process": "A new process is created.", 
            "loads": "New program code is loaded.", 
            "args": "The process is restarted with arguments passed in as <code>argv</code>.", 
            "pid": "The process acquires a new PID.", 
            "memory": "The stack and heap are re-initialized."
        }
    }, 
    "q2": {
        "type": "multiple", 
        "question": "\n<strong>\n\nIn Figure 5.2, what happens if we remove the <tt>else</tt> block on lines\n<tt>16</tt> through <tt>20</tt> (choose all that apply)?\n\n</strong>\n", 
        "responses": {
            "parent": "The parent will print first because it no longer has to wait.", 
            "bomb": "This causes a fork bomb.", 
            "crashes": "The program crashes because you should always have a wait.", 
            "compiles": "The program no longer compiles because of the missing functions.", 
            "child": "The child could become either an orphan or a zombie."
        }
    }, 
    "q5": {
        "type": "blank", 
        "question": "\n<strong>\n\nThe following code is meant to list all the regular files in the current\ndirectory.  Fill in the blanks for the missing portions of code:\n\n<pre>\nint main(int argc, char *argv[]) {\n    DIR *d = ____(____);\n    if (d) {\n        struct ____ *e;\n        while ((e = ____(d))) {\n            struct ____ s;\n            if (____(____, &s) == 0 && ____(s.st_mode)) {\n                puts(____);\n            }\n        }\n    }\n    ____(d);\n    return 0;\n}\n\n</pre>\n\n</strong>\n"
    }, 
    "q4": {
        "type": "multiple", 
        "question": "\n<strong>\n\nWhat are some reasons why programs such as Firefox or Chrome may\nperidiocally use the <code>fsync</code> system call (choose all that\napply)?\n\n</strong>\n", 
        "responses": {
            "performance": "Regularly synchronizing the data improves performance.", 
            "persists": "Regularly synchronizing better ensures that the data persists.", 
            "cleans": "Regularly synchronizing prevents deadlocks.", 
            "resources": "Regularly synchronizing frees up resources.", 
            "crashes": "Regularly synchronizing prevents application crashes."
        }
    }, 
    "q6": {
        "type": "blank", 
        "question": "\n<strong>\n\nOn <tt>student00.cse.nd.edu</tt>, the root filesystem (i.e. <tt>/</tt>) is\nmounted from the ____ device and uses the ____ filesystem type.\n\n</strong>\n"
    }
}