Data Structures Algorithms-II MCQs

Page No. 124

Playfair cipher is an example of __________


amono-alphabetic cipher


bpoly-alphabetic cipher


ctransposition cipher


dadditive cipher



What is the alternative name of playfair cipher?


aWadsworth’s cipher


bWheatstone playfair cipher


cPlayfair rectangle


dWheatstone cipher



What will be the ciphered text if the plain text “SAN” is encrypted using hill cipher with keyword as “GYBNQKURP”?


aRAJ


bJAR


cARJ


dAJR


View Answer RAJ

A key matrix used for encryption in hill cipher must be?


ainvertible matrix


bnon invertible matrix


csquare matrix


drectangular matrix


View Answer invertible matrix

What will be the size of a key matrix if the plain text is “SECRET”?


a 1×6


b5×1


c6×1


d 6×6


View Answer 6×6

What will be the plain text corresponding to cipher text “YGQ“ if hill cipher is used with keyword as “GYBNQKURP”?


aSECRET


bWORLD


c DOLLAR


dHELLO


View Answer SECRET

Hill cipher is harder to crack than playfair cipher.


aTrue


bFalse


cA & B


d None of the above


View Answer False

Which of the following is hardest to break using frequency analysis?


aVigenere cipher


bHill cipher


cCaesar cipher


d Affine cipher


View Answer Hill cipher

Which of the following was the first poly graphic cipher to be able to operate on more than 3 letters at once?


aautokey cipher


bhill cipher


cone time pad cipher


d playfair cipher


View Answer hill cipher

What is poly graphic substitution cipher?


aa substitution based cipher which uses multiple substitutions at different positions


ba substitution based cipher which uses fixed substitution over entire plain text


ca substitution based cipher in which substitution is performed over a block of letters


da transposition based cipher which uses fixed substitution over entire plain text



Goto Page No.

Page 124 of 149

Alphabetical MCQs Categories

Here below You find all kind of categories of MCQs in alphabetical order.


"Comprehensive Collection of MCQs: Alphabetically Organized by Subject"

"Discover an extensive collection of multiple-choice questions (MCQs) neatly categorized by subject from A to Z. This resource is designed for anyone eager to explore various topics in a straightforward and organized manner. Whether you're a student preparing for exams, an educator seeking supplementary materials, or simply curious about different subjects, this compilation offers a convenient way to learn and assess your knowledge. With questions arranged alphabetically, navigation is effortless, allowing you to delve into subjects of interest at your own pace. Engage, learn, and expand your understanding with this accessible and comprehensive repository of MCQs!"


BolPakistan

bolpakistan.com.pk includes Job Mcqs and Pak Mcqs is the Top Largest Mcqs Forum in World, in which you can read Mcqs of All Subjects, PPSC test preparation, FPSC, NTS and PPSC PAST PAPERS, PPSC PAST MCQS. A Collection of Repeated MCQs for JOBs seekers.

Copyright © 2024, Designed & Developed by BolPakistan