COSC 477 - Exam 1 Questions and Answers Already Passed
2 vues 0 fois vendu
Cours
COSC 477 -
Établissement
COSC 477 -
COSC 477 - Exam 1 Questions and
Answers Already Passed
What is the primary purpose of data structures in programming?
The primary purpose of data structures in programming is to organize and store data
efficiently, allowing for easy access and modification.
What is the difference between...
COSC 477 - Exam 1 Questions and
Answers Already Passed
What is the primary purpose of data structures in programming?
✔✔The primary purpose of data structures in programming is to organize and store data
efficiently, allowing for easy access and modification.
What is the difference between a stack and a queue?
✔✔A stack follows the Last In, First Out (LIFO) principle, while a queue follows the First In,
First Out (FIFO) principle for managing elements.
What is Big O notation, and why is it important?
✔✔Big O notation is a mathematical notation used to describe the upper bound of an algorithm's
time or space complexity, providing insight into its efficiency as input size grows.
What are the main characteristics of a linked list?
✔✔The main characteristics of a linked list include dynamic size, ease of insertion and deletion,
and the use of nodes that contain data and pointers to the next (or previous) node.
1
,What is a binary tree, and how does it differ from a binary search tree?
✔✔A binary tree is a hierarchical data structure where each node has at most two children. A
binary search tree (BST) is a type of binary tree where the left child contains values less than the
parent, and the right child contains values greater than the parent.
How do you perform a depth-first search (DFS) on a graph?
✔✔To perform a depth-first search (DFS) on a graph, you start at a selected node, explore as far
as possible along each branch before backtracking, using a stack or recursion to keep track of the
visited nodes.
What is the significance of hashing in data structures?
✔✔Hashing is significant in data structures because it allows for fast data retrieval through key-
value pairs, enabling average-case constant time complexity for search operations in hash tables.
What is a recursive function, and how does it work?
✔✔A recursive function is a function that calls itself in order to solve smaller instances of the
same problem, requiring a base case to terminate the recursion and prevent infinite loops.
What are the advantages and disadvantages of using arrays?
2
,✔✔The advantages of using arrays include fixed size, fast access time to elements, and efficient
memory usage. The disadvantages include difficulty in resizing and the need for contiguous
memory allocation.
What is the purpose of a constructor in object-oriented programming?
✔✔The purpose of a constructor in object-oriented programming is to initialize an object’s
attributes and allocate necessary resources when an instance of a class is created.
What is the concept of encapsulation in OOP?
✔✔Encapsulation is the concept in object-oriented programming that restricts access to an
object's internal state and only exposes necessary methods, promoting modularity and protecting
object integrity.
How does an algorithm's time complexity impact its performance?
✔✔An algorithm's time complexity impacts its performance by determining how the execution
time increases relative to the input size, which affects its scalability and efficiency for large
datasets.
What is the difference between shallow copy and deep copy in programming?
3
, ✔✔A shallow copy creates a new object but copies references to the original object’s elements,
while a deep copy creates a new object and recursively copies all objects found within the
original, resulting in completely independent copies.
What role do interfaces play in object-oriented design?
✔✔Interfaces define a contract for classes to implement specific methods without dictating how
those methods should be executed, promoting loose coupling and flexibility in software design.
What is the significance of the visitor design pattern?
✔✔The visitor design pattern allows operations to be performed on elements of an object
structure without changing the classes of the elements, promoting separation of concerns and
making it easier to add new operations.
What is the purpose of unit testing in software development?
✔✔The purpose of unit testing is to validate that individual components or functions of a
program work correctly in isolation, helping to identify bugs early and ensure code reliability.
THE MILLIONAIRE NEXT DOOR ✔✔THE MILLIONAIRE NEXT DOOR
4
Les avantages d'acheter des résumés chez Stuvia:
Qualité garantie par les avis des clients
Les clients de Stuvia ont évalués plus de 700 000 résumés. C'est comme ça que vous savez que vous achetez les meilleurs documents.
L’achat facile et rapide
Vous pouvez payer rapidement avec iDeal, carte de crédit ou Stuvia-crédit pour les résumés. Il n'y a pas d'adhésion nécessaire.
Focus sur l’essentiel
Vos camarades écrivent eux-mêmes les notes d’étude, c’est pourquoi les documents sont toujours fiables et à jour. Cela garantit que vous arrivez rapidement au coeur du matériel.
Foire aux questions
Qu'est-ce que j'obtiens en achetant ce document ?
Vous obtenez un PDF, disponible immédiatement après votre achat. Le document acheté est accessible à tout moment, n'importe où et indéfiniment via votre profil.
Garantie de remboursement : comment ça marche ?
Notre garantie de satisfaction garantit que vous trouverez toujours un document d'étude qui vous convient. Vous remplissez un formulaire et notre équipe du service client s'occupe du reste.
Auprès de qui est-ce que j'achète ce résumé ?
Stuvia est une place de marché. Alors, vous n'achetez donc pas ce document chez nous, mais auprès du vendeur StellarScores. Stuvia facilite les paiements au vendeur.
Est-ce que j'aurai un abonnement?
Non, vous n'achetez ce résumé que pour €9,93. Vous n'êtes lié à rien après votre achat.
