Podcast
Questions and Answers
What is the purpose of a constructor in C++?
What is the purpose of a constructor in C++?
What is a common characteristic of tuples?
What is a common characteristic of tuples?
What is the primary function of a destructor in C++?
What is the primary function of a destructor in C++?
Which type of variables are defined outside all functions in C++?
Which type of variables are defined outside all functions in C++?
Signup and view all the answers
What will be the output of the C++ code provided?
What will be the output of the C++ code provided?
Signup and view all the answers
In Python, what error does the code snippet about 'Str' most likely result in?
In Python, what error does the code snippet about 'Str' most likely result in?
Signup and view all the answers
In Data Warehousing, what does 'Granularity' refer to?
In Data Warehousing, what does 'Granularity' refer to?
Signup and view all the answers
Which command is used to get the last executed process ID in Unix?
Which command is used to get the last executed process ID in Unix?
Signup and view all the answers
What is the purpose of Cluster indexing in DBMS?
What is the purpose of Cluster indexing in DBMS?
Signup and view all the answers
What is one characteristic of a Tuple in databases?
What is one characteristic of a Tuple in databases?
Signup and view all the answers
What is the purpose of the code snippet provided?
What is the purpose of the code snippet provided?
Signup and view all the answers
In the given C++ code, what is the output of 'printf("%ld", c-b);' statement?
In the given C++ code, what is the output of 'printf("%ld", c-b);' statement?
Signup and view all the answers
Which command in the provided options tells you which bash shell you have to use?
Which command in the provided options tells you which bash shell you have to use?
Signup and view all the answers
In Dijkstra’s single source shortest-path algorithm, what is the correct order in which nodes get included into the set of vertices for which the shortest path distances are finalized?
In Dijkstra’s single source shortest-path algorithm, what is the correct order in which nodes get included into the set of vertices for which the shortest path distances are finalized?
Signup and view all the answers
Black Box Testing is sometimes referred to as:
Black Box Testing is sometimes referred to as:
Signup and view all the answers
Which type of testing involves examining the structure of the code being tested?
Which type of testing involves examining the structure of the code being tested?
Signup and view all the answers
Study Notes
C++ Constructors and Destructors
- A constructor initializes an object when it is created, allowing for setup and resource allocation.
- A destructor cleans up when an object is destroyed, releasing resources and performing necessary cleanup tasks.
Variables in C++
- Global variables are defined outside all functions, accessible to any function within the program.
Data Structures and Characteristics
- Tuples have fixed sizes and can contain mixed data types, providing a lightweight alternative to lists.
- In databases, a tuple represents a single record in a table, containing a set of related fields.
Error Handling in Python
- A code snippet with 'Str' will likely result in a 'NameError' if 'Str' is not defined in the current scope.
Data Warehousing Concepts
- Granularity refers to the level of detail or depth of data stored within a data warehouse, affecting analysis precision.
Unix Command Usage
- The command
echo $$
is used to get the last executed process ID in Unix-like operating systems.
Database Management Systems (DBMS)
- Cluster indexing improves data retrieval speed by grouping related rows, minimizing disk space usage and search time.
Dijkstra’s Algorithm
- In Dijkstra’s algorithm, nodes are included based on the shortest path distance calculated from the start node, ensuring optimal pathfinding.
Software Testing
- Black Box Testing focuses on input/output without concern for internal workings of the application.
- White Box Testing examines the internal structure and code logic of the software being tested.
C++ Code Output Statements
- The statement
printf("%ld", c-b);
will output the difference in memory addresses between two pointer variables.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge with this memory-based paper for SEBI Grade A IT Phase 1 - Paper 2. Questions cover topics such as variable scopes, tuples, and more.