By : Manglika Tripathi
Updated : Feb 26, 2021, 16:35
Hashing is a method used to build, search, or delete the data from a given table using a hash table. A hash table is a collection of arrays stored in the database used to insert or search a given data. The hash function is used for hashing. A hash function is a method of finding the index for the table using a key. Several resources, for example, a hashing book, can help to get a better understanding of these concepts.
The students can look at the hashing GATE CS questions and answers pdf to begin their preparation for the ISRO, GATE, BARC, and many other computer science engineering exams. The online hashing quiz helps students improve the scores in the exam.
Topic | Details |
Load factor | Load factor = No of items in table/size of table |
Division method for hashing | It is a method in which the key “k” is mapped to the m slot using the remainder obtained by dividing k by m. |
Mid-square method for hashing | It is a method in which the key “k” is mapped to the m slot using the middle digits obtained by calculating k2. |
Folding method for hashing | It is a method in which the key is divided into sections of equal length and then added together. |
Radix hashing | In this, we convert the base of the number and divide it further by the address. |
Separate chaining | Separate chaining is a collision resolution technique in which the hash key is stored in a linked list, connected to the slot like a chain. |
Open addressing | In this type of collision resolution technique, the data is stored in the hash table. The size of this hash table is greater than the number of keys. |
h(k) = k mod m (for division method)
h(k) is the middle digits of k2(for mid-square method)
The average length of chain =NM, where N = array size and M = number of linked lists.
You can also refer to hashing notes for GATE CS pdf for more shortcuts.
By referring to the below books, you can understand all the concepts and appear for the exams with confidence.
Book Name | Author |
Introduction to Algorithm | Thomas H. Cormen |
Computer Algorithm | Horowitz & Sahni |
BYJU'S Exam Prep is the perfect destination for all the students who are preparing for competitive exams like GATE CS. BYJU'S Exam Prep provides hashing study material for GATE CS, designed by their team of experienced mentors. Here at BYJU'S Exam Prep, the entire team works as a community to help each other achieve their goals. BYJU'S Exam Prep also provides the best hashing GATE notes that the student can purchase to understand the correct perspective. You can also participate in a hashing online quiz to improve their scores and increase their chance of getting admission to your desired college. They can also refer to the hashing MCQ pdf for practice.
Q. From where can I get notes for preparing the hashing topic for GATE CS exams?
You can easily download hashing notes for CS from BYJU'S Exam Prep and start with your preparation. It would help if you went through them to get an understanding of the concepts.
Q. Can a ME student appear for GATE CS exams?
Yes, you can appear for the GATE CS exams. It would help if you dedicated more time to the topic hashing for computer science to compete with other CS students. You can also refer to the hashing syllabus for GATE to understand the critical topics you need to cover.
Q. What are the types of questions asked for the topic hashing in GATE exams?
For this, you need to refer to the hashing GATE syllabus and look at all the concepts that need to be covered. You are usually asked to find a hashing function using the different methods of hashing.
Q. How can I solve the questions from hashing in less time?
It helps if you practice many questions to improve your speed or take the help of hashing online tests and enhance your results.
Q. What are the hashing topics for GATE CS?
To get a brief idea of the topics that are covered, you may visit BYJU'S Exam Prep. It gives you a brief outline of all the concepts that are covered. You can also download the necessary study material from there.