A code is ‘arrangement of signs’. Accordingly, coding is a process for transmitting a message between the sender and the recipient without a third individual knowing it.
The coding and decoding test is set up to judge the candidate’s capacity to interpret the rule that codes a specific word/message and break the code to interpret the word. The article Coding - Decoding presents the important questions related coding and decoding topic.
Coding and decoding are divided into eight types. They are:
1. Letter coding
2. Direct letter coding
3. Number/Symbol coding
4. Matrix coding
5. Substitution coding
6. Deciphering message word coding
7. Deciphering number and symbol codes for messages
8. Jumbled coding
In this type of questions,
some messages are given in the coded language
the code for a particular word or a message is asked
Points to remember while solving this question:
Compare any two messages bearing acommon word
Compare the codes of these two messages to find a common code-word
This common code word will represent the common word in the message
Repeat the same by picking all the possible combinations of common words from messages and thus determining the common code-words
Thus the entire message can be decoded and the codes for individual words can be found
Q1
In a code language, BROKE is written as DOSFK, START is written as UQEMZ, then INDIA is written as
Alphabet Series - A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
The coding follows the rule +2, -3, +4, -5, +6, etc.
That means B + 2 = D
R - 3 = O
O + 4 = S, etc.