Quiz APUE7-8 Process1

___ is a type of file used for network communication between processes via network.

Signals provide a way of handling ___ events

___ is a technique used to notify a process that some condition has occurred.

In Unix/Linux a file ___ is normally small non-negative integer that the kernel uses to identify the files accessed by a process.

When a process calls one of the ____ functions, that process is completely replaced by the new program, and the new program starts executing at its main function. It merely replaces the current process—its text, data, heap, and stack segments—with a brand-new program from disk.

By convention, all shells in Unix open ___ descriptors whenever a new program is run.

A(n) ___ has only one thread of control—one set of machine instructions executing at a time.

___ is a type of file that points to another file.

After creating a(n) ____, the process typically spawns a new process (for the child inherits open file descriptors).

By convention, UNIX System shells associate file descriptor __ with the standard input of a process.

The new file descriptor returned by dup is guaranteed to be the ___ numbered available file descriptor.

Historically, a C program has been composed of the following pieces: Text segment, Initialized data segment, Uninitialized data segment, stack, and heap. Among them, ___ is consisting of the machine instructions (program) that the CPU executes.

___ is a lightweight process

After fork, the return value in the child is ___.

This signal is generated by the terminal driver when we press the interrupt key (often DELETE or Control-C).

After fork, the differences between the parent and child are:

A ____ is an executable file residing on disk in a directory

___ allocates space for a specified number of objects of a specified size. The space is initialized to all 0 bits.

___ is a unit of work

With dup2(int fd, int fd2), specify the value of the new descriptor with the __ argument. If __ is already open, it is first closed.

Historically, a C program has been composed of the following pieces: Text segment, Initialized data segment, Uninitialized data segment, stack, and heap. Among them, ____ is where dynamic memory allocation usually takes place.

The ____ contains all the information about the file: the file type, the file’s access permission bits, the size of the file, pointers to the file’s data blocks, and so on.

The new process created by fork is called the child process. This function is called once but returns ___.

___ is an executing instance of a program.

___ will make a copy of the current process.

Historically, a C program has been composed of the following pieces: Text segment, Initialized data segment, Uninitialized data segment, stack, and heap. Among them, ___ is where automatic variables are stored, along with information that is saved each time a function is called (for example, the address of where to return to and certain information about the caller’s environment, such as some of the machine registers).

The process can do ___, for dealing with the signal.

All ___ within a process share the same address space, file descriptors, stacks, and process-related attributes.

___ is the most common type of file, which contains data of some form. There is no distinction to the UNIX kernel whether this data is text or binary.

___ allocates a specified number of bytes of memory. The initial value of the memory is indeterminate.

What would be a proper way to set a signal handler (sig_int) for SIGINT?

For a convenience, ___ call is used to execute a command string from within a program.

A disk drive is divided into one or more ____(s) where each ___ can contain a file system