C/Rust Programming Languages Review
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Questions and Answers

The final exam allows students to use their notes.

False

What is one algorithm implemented in Rust as mentioned?

Rivest-Shamir-Adleman (RSA) algorithm

The for loop is a type of ______ that runs for a specific amount of time.

conditional loop

Match the programming constructs with how they were used:

<p>Arrays = Used in C Vectors = Used in Rust Pointers = Common to both C and Rust Crates = Specific to Rust</p> Signup and view all the answers

The exam consists of 25 questions worth between 0.5 and 1 point each.

<p>True</p> Signup and view all the answers

What tool is mentioned for creating programs?

<p>Visual Studio Code (VS Code)</p> Signup and view all the answers

What is one of the main benefits of using functions in programming?

<p>Reusability</p> Signup and view all the answers

Functions must always be defined before they can be called in Rust.

<p>False</p> Signup and view all the answers

What keyword is used to define functions in Rust?

<p>fn</p> Signup and view all the answers

A single function can be used in __________ different programs.

<p>several</p> Signup and view all the answers

Match the following terms with their definitions:

<p>Function Definition = Describes the body of the function Abstraction = Using a function without knowing its implementation Parameter List = Values passed to a function when called Function Declaration = Tells the compiler about a function's return type</p> Signup and view all the answers

Which of the following statements about function definitions is true?

<p>Function definitions include the code that should run.</p> Signup and view all the answers

In Rust, an empty parameter list means a function does not require any arguments.

<p>True</p> Signup and view all the answers

What is the syntax to call a function named 'say_hello' in Rust?

<p>say_hello();</p> Signup and view all the answers

What type is used for string literals in Rust?

<p>&amp;str</p> Signup and view all the answers

String literals in Rust are mutable and can be changed at runtime.

<p>False</p> Signup and view all the answers

What is the main difference between a string literal and a String object in Rust?

<p>String literals are immutable and stored on the stack, while String objects are mutable and stored on the heap.</p> Signup and view all the answers

The String object type in Rust is defined in the ___________ Library.

<p>Standard</p> Signup and view all the answers

Match the following functions to their purpose in creating String objects:

<p>String::new() = Generates an empty string String::from() = Creates a string from a given value String mutable = Allows modifications to the string String UTF-8 = Defines character encoding for the string</p> Signup and view all the answers

Which of the following is an example of a String literal in Rust?

<p>let company: &amp;str = 'Amazon'</p> Signup and view all the answers

String literals have an undefined lifetime in a program.

<p>False</p> Signup and view all the answers

What is the purpose of the heap when using the String object in Rust?

<p>The heap is used to allocate memory for String objects, allowing them to expand and change at runtime.</p> Signup and view all the answers

What is the main characteristic of memory on the stack in Rust?

<p>It is fast and local to a function call.</p> Signup and view all the answers

The heap is faster than the stack for memory allocation.

<p>False</p> Signup and view all the answers

What data type in Rust allows you to store values on the heap?

<p>Box</p> Signup and view all the answers

The stack is limited in size and __________ accessible.

<p>locally</p> Signup and view all the answers

Match the following characteristics with either the Stack or the Heap:

<p>Fast and local to function calls = Stack Explicitly allocated memory = Heap Limited in size = Stack Effectively unlimited in size = Heap</p> Signup and view all the answers

Which of the following statements about heap memory in Rust is true?

<p>It is slower than stack memory but allows for longer-lasting data.</p> Signup and view all the answers

Rust uses garbage collection to manage memory.

<p>False</p> Signup and view all the answers

Name one downside of using the stack for memory allocation.

<p>Cannot keep values beyond the function's execution.</p> Signup and view all the answers

What does the area method in the Rectangles struct return?

<p>The area of the rectangle</p> Signup and view all the answers

The impl block is used to define functions that are associated with a specific struct.

<p>True</p> Signup and view all the answers

What parameter does the area method take to reference the instance of the struct?

<p>self</p> Signup and view all the answers

In Rust, an enumeration of IP address types would be defined using the keyword ______.

<p>enum</p> Signup and view all the answers

Match the following IP address types with their versions:

<p>V4 = Version 4 IP address V6 = Version 6 IP address</p> Signup and view all the answers

Which statement about enums is true?

<p>Enums represent a fixed set of possible values.</p> Signup and view all the answers

The Rectangles struct can have multiple methods defined under different impl blocks.

<p>True</p> Signup and view all the answers

What is the output of the following code: println!(“Area of the rectangle {} square pixels.”, rect1.area()); ?

<p>2400</p> Signup and view all the answers

What does the function calculate_length return?

<p>A tuple containing the string and its length</p> Signup and view all the answers

Borrowing in Rust allows passing a value to a function without transferring ownership.

<p>True</p> Signup and view all the answers

What unary operator is used to indicate a borrowed reference in Rust?

<p>&amp;</p> Signup and view all the answers

In Rust, when you pass a reference to a function, the type is denoted as _____ instead of the original type.

<p>&amp;Type</p> Signup and view all the answers

What happens to the value of fruit after the call to print_fruit(fruit)?

<p>The value of fruit is moved into print_fruit</p> Signup and view all the answers

When you borrow a value of type Fruit, you obtain a Fruit back.

<p>False</p> Signup and view all the answers

What function is used in the code to calculate the length of a string?

<p>len()</p> Signup and view all the answers

Study Notes

C/Rust Programming Languages Review

  • The presentation is a review for a final exam on C/Rust programming.
  • The review covers topics like Visual Studio Code, Git, C programming, Rust programming, data structures, algorithms (Hamming code encoder/decoder, RSA), and programming concepts like functions, iterators, and their use in scenarios like looping over a list and using array examples with the iter() function.
  • The material discusses the structure of functions, parameter passing (pass by value and pass by reference), return values and scope in C/Rust programming.
  • The presentation also includes material explaining the difference between Stack memory and Heap memory in detail.
  • The various ways of handling, building and working with Strings in Rust are explored: string literals, the string object, building strings (using new() and from() syntax) along with common string methods.
  • The review discusses important concepts about Rust’s ownership system emphasizing the move, clone, and copy mechanisms, along with rules of ownership.
  • The presentation includes explanations of Variable Scope, and how variables and data interact, including examples of moving values between variables.
  • The use and importance of Structs is explored, along with how to create structs.
  • The material also details slices in Rust, exploring their creation and usage with functions.
  • Explanation of methods and enums, along with examples for each.
  • Presentation details the various types of pointers (references, Box, unsafe pointers).
  • Detailed information on what happens when we use RefCell to change values without declaring mutable variable,
  • Discussion of a panic in the context of a Rust program
  • Discussion of reference safety in Rust for preventing dangling pointers by checking lifetimes

Additional Topics

  • Instruction for the student quiz #4/ Final Exam
    • The final exam is closed book; no notes are allowed.
    • The exam will take place on Monday, December 9th, at 7:30 AM.
    • The exam will last 75 minutes.
    • Students need to bring their laptops.
    • The test is worth 20 points.
    • There are 25 questions, each worth between 0.5 and 1 point.
    • Students are expected to follow academic integrity rules, and not be involved in any form of cheating.
  • Student Assessment
  • 75% = 1 extra credit point
  • 90% = 2 extra credit points
  • 2% of 79 = 2 extra credit points available. 57 more students need to respond to reach the 75% mark.
  • The email will be from [email protected].

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COP 3515 - Lesson 28 - Final Review PDF

Description

Prepare for your final exam with this comprehensive review of C and Rust programming languages. Topics covered include data structures, algorithms, functions, memory management, and string handling. Understand key concepts like Visual Studio Code, Git, and Rust's ownership system to ace your exam.

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