Bissoy.com
Doctors Medicines MCQs Q&A

Data Encryption Standard is implemented using the Feistel Cipher which employs 16 round of Feistel structure.

Data Encryption Standard is implemented using the Feistel Cipher which employs 16 round of Feistel structure. Correct Answer DES

Data Encryption Standard is a block cipher which implements the Feistel Cipher which employs 16 round of Feistel structure. The block size it uses is 64-bit.

Related Questions

A company recruits candidates satisfying the following criteria -  1. Candidates who secured at least 85% in standard 10th or equivalent. 2. Candidates who secured at least 65% in standard 12th or equivalent. 3. Candidates who are not from commerce background. Who among the following candidates will the company definitely select? A. Jitesh is a science student having scored 70% in standard 12th and 80% in 10th with an excellent sports background. B. Jignesh scored 80% in standard 12th, 90% in standard 10th and secured 2nd place in his college among all commerce students. C. Jayesh scored 75% in standard 10th, 75% in standard 12th and is an arts student. D. Jinesh secured 80% in standard 12th, 88% in standard 10th and is a science student with great acting skills
Which of the following are true? (i) A programming language option does not permit global variables of any king and has no nesting of procedures/functions, but permits recursion can be implemented with static storage allocation (ii) Multi-level access link (or display) arrangement is needed to arrange activation records-only if the programming language being implemented has nesting of procedures/function (iii) Recursion in programming languages cannot be implemented with dynamic storage allocation (iv) Nesting of procedures/functions and recursion require a dynamic heap allocation scheme and cannot be implemented with a stack-based allocation scheme for activation records (v) Languages which permit a function to return a function as its result cannot be implemented with a stack-based storage allocation scheme for activation records.
Refer the below data table and answer the following Question : Division/Standard Boys Girls Division A/Standard 5 20 30 Division B/Standard 5 15 20 Division C/Standard 5 30 10 Division A/Standard 6 30 25 Division B/Standard 6 30 25 Division C/Standard 6 30 20   What is the ratio of Boy’s to Girl’s? 
In a beauty competition, 2/5 of the participants were eliminated in the first round. 2/3 of the remaining participants qualified from the second to the third round and half of the participants of the third round got into the final round. In the final round, 2/3 of the remaining participants lost the competition, while two of them won the competition. How many participants were there in the competition?
Which of the following statements are true?
Statement I Big data refers to no precise quantity, but generally refers to data in the range of Petabytes and Exabyte, i.e. billions to trillions of records, all from various sources. Big data is generated much faster. than traditional data in much larger quantities.
Statement II Big data interests industries because they are able to learn more patterns and curious variances than smaller data sets, with the capability to provide valuable insights into consumer behaviour, weather systems, financial market activity, or other phenomena.
Statement III Various departments and product lines use various applications within most organisations and store data in separate datasets. These separate databases may contain similar data, but data from one data base to another is not always consistent. This is called data silo.
The given table shows the number of students and their class. Division A students are scholars who get a 25% rebate in fees. In addition, all girls students get 40% subsidy. If the fee per student a year WITHOUT rebate or subsidy is Rs. 10,000, then find the total fees collected from the students of these 6 classes for that year. Division  /Standard  Boys Girls Division A /Standard 9 20 40 Division B /Standard 9 40 35 Division C /Standard 10 20 20 Division A /Standard 10 40 20 Division B /Standard 10 20 40 Division C /Standard 10 20 15
A queue is implemented using a non-circular singly linked list. The queue has a head pointer and a tail pointer, as shown in the figure. Let n denote the number of nodes in the queue. Let enqueue be implemented by inserting a new node at the head, and dequeue be implemented by deletion of a node from the tail. Which one of the following is the time complexity of the most time-efficient implementation of enqueue and dequeue, respectively, for this data structure?
Under DES, the data encryption standard took a 64-bit block of data and subjected it to ______ levels of encryption.
In the following question below are given some statements followed by some conclusions Taking the  given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of given conclusion logically follows the given statements, Statements: I. Some pens are round. II. All round are black. Conclusions: I. All black are pens. II. Some round are black. III. All round are pens.
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements. Statements: All stools are round. Some mountains are round. Some ponds are mountains. All ponds are square. Conclusions: I. Some ponds are round. II. Some mountains are square. III. Some ponds are both mountains and round. IV. Some stools are square.