alleryIn the Atbash cipher on the English alphabet, which letter is paired with J?
- P
- R
- Q
- K
Show answer and solution
Correct answer: C. Q
J is the tenth letter and its partner is the tenth from the end, which is Q.
RRB NTPC Coding Decoding — practice questions — page 2
Explore 45 free Coding Decoding questions in RRB NTPC Reasoning. Open each question or exercise to read its content, reference answers and available explanation.
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Showing questions 31–45 of 45.
In the Atbash cipher on the English alphabet, which letter is paired with J?Read the answer and worked solution →The two middle letters M and N of the alphabet are paired in the Atbash cipher. What does M become?Read the answer and worked solution →Writing every letter as its mirror in the alphabet (A with Z), how is BABY coded?Read the answer and worked solution →Which type of cipher rearranges the plaintext units but leaves the units unchanged?Read the answer and worked solution →A simple substitution cipher operates on what unit?Read the answer and worked solution →What does a monoalphabetic cipher use over the entire message?Read the answer and worked solution →A mixed alphabet uses the keyword zebras, followed by the remaining letters in order. What does B become?Read the answer and worked solution →The cipher alphabet starts with the keyword zebras, then the other letters in the usual order. How is SEA written?Read the answer and worked solution →With a mixed alphabet beginning ZEBRAS and then the rest in order, EAR is coded as what?Read the answer and worked solution →A salesperson's price code writes 120 as MAT and 5256 as PAPR. What does MAP stand for?Read the answer and worked solution →In a price code, MAT is 120, PAPR is 5256 and OFTK is 7803. What number is TOP?Read the answer and worked solution →In a Vigenère tabula recta, how does each successive row differ from the one above?Read the answer and worked solution →In a code each letter is replaced by the next letter in the alphabet. How is BAG written?Read the answer and worked solution →A code replaces each letter by the next one in the alphabet. What word does IBM stand for?Read the answer and worked solution →In a 26-letter Caesar cipher, a left shift of 3 places equals a right shift of:Read the answer and worked solution →
Worked practice questions
The two middle letters M and N of the alphabet are paired in the Atbash cipher. What does M become?
- O
- M
- N
- L
Show answer and solution
Correct answer: C. N
M is the thirteenth letter and is swapped with the fourteenth, N.
Writing every letter as its mirror in the alphabet (A with Z), how is BABY coded?
- ZYZB
- YAYB
- YZBY
- YZYB
Show answer and solution
Correct answer: D. YZYB
B maps to Y, A maps to Z, B maps to Y again and Y maps to B.
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