DSA Exam Questions & Answers Already Graded A+

DSA Exam Questions & Answers Already Graded A+ It is a particular way of organizing and storing data in computer - Answer- Data Structures DS is about what? - Answer- rendering data elements Data Structures contains the data to be manipulated by? - Answer- Computer Program Data Structure are structures programmed to what? - Answer- Store ordered data Consist of the steps which describe how the data are to be manipulated. - Answer- Algorithm Data Structures + Algorithm - Answer- = Computer program Applications of Data Structures - Answer- Searching Sorting Graph traversing Finding the shortest path Processing online request File management Advantages of data structures - Answer- Allows easier processing of data. It allows information stored on disk efficiently. These are necessary for designing an effective algorithm. It provides management of databases like indexing with the help of hash tables and arrays. It is secured way of storage of data. Graph models real life problems. It allows processing of data on software system. Disadvantages of data structures - Answer- It is applicable only for advance users. If any issue occurs it can be solved only by experts. Slow access in case of some data types. Primitive Data Structures - Answer- Integer Float Boolean Char Abstract Data Structures - Answer- List Linked List Tree Graph Stack Queues Binary Tree are used to store a huge and interconnected data - Answer- Abstract Data Structures Data structures are selected based on? - Answer- which type of operation is required provide ways to organize and manage data values of any data type. - Answer- Compound data types Is a series of element of the same type placed in contiguous memory location that can be individually referenced by adding an index - Answer- Array A typical declaration/syntax for an array in C++ is: - Answer- data type [elements]; can be described as "array of arrays" are not limited to two as many indices as needed - Answer- Multidimensional arrays syntax for Multidimensional Arrays - Answer- datatype name [elements][elements]; In C++, using namespace std is for? - Answer- is used to avoid writing std In C++, what is used for input and output? - Answer- cin (input) and cout (output) In C++, what is used for New line after each row? - Answer- endl Finding a particular item in a collection - Answer- Searching