How does Python support multiple inheritance?

By adding more base classes into the parentheses

By adding more methods to a single base class

By creating new classes from existing classes

By overriding methods in parent classes

What are some reasons why modules are important in Python?

They promote modularity, reusability, shareability, and maintainability of code

They improve program speed and efficiency

They allow for more complex programming logic

They provide additional syntax for built-in functions

In Python, what is a package?

A bunch of related modules organized into sub-packages, sub-sub-packages and more

A set of built-in modules that come pre-installed with Python

A collection of unrelated modules bundled together for convenience

A type of file format used to distribute Python code

What is true about files in Python?

Files are everything in UNIX, and files are named locations on disk used to store information

Files can only contain text data, not binary data

Files are a type of object that can be passed as arguments to functions

Files are similar to databases and can store large amounts of structured data

What is the primary purpose of directories in computer systems?

To provide a hierarchical structure for organizing data

To store temporary files used by the operating system

To act as a repository for user passwords

To optimize system performance through file compression

What components are typically included in the execution state of a process?

Processor state, file descriptors, and memory allocation

Keyboard input buffer, network socket connections, and display output buffer

System clock rate, CPU temperature, and fan speed

Hard disk storage capacity, disk fragmentation status, and read/write speeds

What are the five basic states of a process?

New, ready, running, waiting, terminated

Initial, active, paused, suspended, complete

Active, standby, pending, scheduled, finished

Creating, executing, pausing, stopping, closing

What is the role of process scheduler in a computer system that has multiple processes running at the same time?

The process scheduler is a part of the operating system that decides which processes to be executed at a certain time.

The process scheduler is responsible for executing all processes simultaneously.

The process scheduler determines how much memory each process should be allocated.

The process scheduler is responsible for choosing the order in which the processes are installed on the system.

What are the key components of a Process Control Block (PCB)?

The PCB typically contains information about the process state, priority, and allocated resources.

The PCB only contains information about the process's input/output operations.

The PCB only contains information about the amount of CPU time a process has used.

A PCB only contains information about the process name and ID.

What is the primary function of a Process Control Block (PCB) in an operating system?

The PCB is used to store and manage information about a process, including its state, priority, allocated resources, and other relevant details.

The PCB is used to manage network connections between processes.

The PCB is used to store configuration settings for the operating system.

The PCB is used to allocate memory to device drivers in the system.

What is the purpose of the system popen function in operating systems?

popen provides a way to execute shell commands from within a C program

popen allows a user to open a file with write permissions

popen creates a new process in the operating system

popen retrieves information about a file in the operating system

Why was the Global Interpreter Lock (GIL) introduced in Python?

The GIL was introduced to simplify memory management in Python by allowing only one thread to execute at a time, ensuring thread safety and avoiding potential race conditions.

The GIL was introduced to make it easier to write concurrent programs in Python.

The GIL was introduced to allow multiple threads to execute simultaneously.

The GIL was introduced to improve performance in multi-threaded programs.

What is a thread in computer science?

A thread is a single flow of execution that belongs to a process and can be considered as a lightweight process.

A thread is a separate process running on the computer.

A thread is a type of data structure used to organize code within a program.

A thread is a type of input/output operation used to communicate with hardware devices.

What is a single-threaded process in operating systems?

A single-threaded process is a default type of process in which only one thread per process is executed.

A single-threaded process is a type of process that uses multiple threads to execute code.

A single-threaded process is a type of process that can run on multiple processors simultaneously.

A single-threaded process is a type of process that is specifically designed for parallel computing.

What is a single stack in computer programming?

A single stack refers to a memory management system that uses only one

A single stack is a type of data structure used for handling network requests.

A single stack is a type of hardware device used for processing graphics.

A single stack is a type of programming language designed specifically for web development.

What is a characteristic of a multi-threaded process?

A multi-threaded process has more than one thread per process, and all threads share the same PCB (Process Control Block).

Each thread in a multi-threaded process has its own separate PCB

Multi-threaded processes can only have one thread running at a time.

Threads in a multi-threaded process cannot share data with each other.

What is a difference between a multi-threaded process and a single-threaded process?

In a multi-threaded process, each thread has its own stack and processor state (such as the program counter and registers), whereas in a single-threaded process there is only one stack and processor state for the entire process.

Multi-threaded processes can only run on a single core, whereas single-threaded processes can run on multiple cores.

Multi-threaded processes always have better performance than single-threaded processes.

In a single-threaded process, the main thread is always given priority over any additional threads.

What is the key difference between multi-threading and multi-processing in terms of resource management?

Multi-threading allows for resource sharing among threads while multi-processes rely on resource cloning.

Multi-processes allow for resource sharing among threads while multi-threading relies on resource cloning.

Both multi-threading and multi-processing rely on resource cloning.

Both multi-threading and multi-processing allow for resource sharing among threads.

What are some benefits of using multi-threading in software development?

Increased responsiveness, improved performance, resource sharing, and scalability.

Reduced responsiveness and increased performance.

What are some reasons why a developer might not choose to use multi-threading in software development?

Synchronization between threads can be difficult and error-prone.

Multi-threading always results in deterministic code.

Multi-threading is the only way to achieve optimal performance.

Deadlocks never occur in multi-threaded programs.

What are two common types of interfaces used in software applications?

Basic User Interface and Advanced User Interface

Simple User Interface and Complex User Interface

Textual User Interface and Audio User Interface

Graphical User Interface and Command Line Interface

What are some advantages of using a Graphical User Interface (GUI) in software applications?

GUIs are user-friendly and intuitive for newcomers, easy to learn without the need to remember complex commands, and allow for better multitasking.

GUIs require users to remember complex commands.

GUIs are difficult to learn and not intuitive for new users.

GUIs can only handle one task at a time.

What are some advantages of using the Tkinter library in Python for building graphical interfaces?

Tkinter is simple, flexible, and focuses on providing an easy-to-learn interface for newcomers.

Tkinter is very complex and difficult to learn.

Tkinter is inflexible and does not offer many customization options.

Tkinter is not designed for new users.

What are the key differences between the .pack(), .place(), and .grid() methods in the Tkinter library in Python?

.pack() centers the widget both horizontally and vertically with alignment direction, while .place() and .grid() use specific coordinates.

.pack() uses absolute coordinates, while .place() and .grid() use relative coordinates.

.place() uses row and column coordinates, while .grid() and .pack() use absolute coordinates.

.grid() uses absolute coordinates, while .pack() and .place() use relative coordinates.

How would you define inheritance in Python?

Inheritance involves creating a child class with a superclass in parentheses. This allows all methods and attributes from the superclass to be inherited by the subclass.

Inheritance in Python is achieved by copying and pasting code from one class to another.

To inherit from a superclass, you must manually copy all its methods and attributes into the subclass.

Inheritance in Python only works for methods, not attributes.

In object-oriented programming, what is the default access level for class fields and methods in most programming languages?

No access level specified by default

What is a module in Python?

A module is a reusable piece of code that can be from external sources or a regular .py file with definitions and classes. It allows you to organize your code, make it more modular, and easily reuse functionality across multiple projects.

A module is a type of variable in Python.

A module is a built-in data structure in Python for storing multiple values.

A module is a term used to describe the process of compiling Python code into machine code for execution.

Why are files used in Python?

Files are used in Python to store data persistently while storing data in RAM is volatile and is erased when the program exits.

Files are used in Python to speed up program execution.

Files are used in Python to provide a way to store data temporarily while a program is running.

Files are used in Python to enable the creation of graphical user interfaces (GUIs) for desktop applications.

What is the definition of a 'process' in computer science?

A program that is currently being executed by the operating system

A type of data structure used to store and organize information

A physical component of a computer that performs arithmetic operations

A set of instructions written in a programming language

What are some characteristics of process scheduling in computing?

Process scheduling maximizing CPU, ensuring responsiveness, enabling multitasking, and balancing resource usage across processes.

The primary goal of process scheduling is to make sure that only one process is running at a time, to avoid conflicts between them.

Process scheduling always gives highest priority to low-level system tasks such as managing memory and hardware resources.

The main characteristic of process scheduling is to allocate more CPU time to processes that have been running for a long time, to ensure they complete their tasks.

What is one reason why developers should avoid using the Global Interpreter Lock (GIL) in Python?

GIL limits concurrency and can cause performance bottlenecks.

GIL improves performance in multi-threaded applications.

GIL ensures thread safety and prevents data corruption.

GIL allows multiple threads to access the same shared memory.

What is the similarity between multi-threaded and multi-process approaches to running tasks on a computer?

Both multi-threaded and multi-process can do several things at the same time, increase CPU utilization, increase system responsiveness.

Both multi-threaded and multi-process decrease CPU utilization, do several things at the same time, increase system responsiveness.

Both multi-threaded and multi-process decrease system responsiveness, do several things at the same time, increase CPU utilization.

Both multi-threaded and multi-process run tasks sequentially.

Computer Programming Quiz

Authored by Nguyen Duong

Computers

University

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42 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the correct sequence of steps for interacting with a computer program?

Execute, type command, wait for response

Type command, wait for response, execute

Wait for response, type command, execute

Type command, execute, wait for response

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a variable in computer programming?

A fixed value that cannot be changed

An input device used to enter data into the computer

A type of loop used for repeating code

A named place in the memory to store data

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the rules for naming variables in computer programming?

Only letters are allowed, not numbers or underscores

Variable names are not case sensitive

It is allowed to start a variable name with a number

Variable names can include letters, numbers, or underscores, but must start with a letter or underscore

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a statement in computer programming?

A variable used to store data temporarily

A function that performs a specific task

A type of loop used for repeating code

A combination of operator and its operand(s), where the operator is a symbol indicating a calculation, and there is one or more operands

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Which of the following values represent a Boolean variable in computer programming?

int

char

float

TRUE

FALSE

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is an integer variable in computer programming?

A variable used to store text data

A variable that can only hold a value of 0 or 1

A type of loop used for repeating code

A variable that can hold whole numbers

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What data type in computer programming is typically used to store decimal numbers with digits and exponents?

char

bool

double

float

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Computer Programming Quiz

What is the correct sequence of steps for interacting with a computer program?

What is a variable in computer programming?

What are the rules for naming variables in computer programming?

What is a statement in computer programming?

Which of the following values represent a Boolean variable in computer programming?

What is an integer variable in computer programming?

What data type in computer programming is typically used to store decimal numbers with digits and exponents?

Which of the following functions can be used to check inheritance in Python?

How does Python support multiple inheritance?

What are some reasons why modules are important in Python?

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