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Hamming Code Question & Answers

January 5, 2022 By WatElectronics

This article lists 100 Hamming Code MCQs for engineering students. All the Hamming Code Questions & Answers given below include a hint and a link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up their fundamentals on Hamming Code.

A hamming code is a linear type code designed for error detection and correction in the digital world. In digital communication, data is communicated wirelessly in the form of binary digits 0’s and 1’s combination. During this data transmission process, the data transmitted from sender to receiver end can be subjected to noise and injects errors by the time receiver receives the message.

Hence it’s important to identify and correct the errors that are induced in digital communication for data accuracy. Hence hamming code performs this task of error detection up to two intermediate type errors and also additionally detects errors of single bits.

This process takes place in 2 stages encryption is done at the sender's end and decryption is done at the receiver's end. Where both encryption and decryption are further performed in 3 stages each for enhanced data quality between sender and receiver.

This process mainly depends on the parity bits added between the original message and redundancy bits. They are employed in computing, modems plasma CAM, and more. The advantages of hamming codes include performing error detection and correction and are easy to implement.

1). Hamming code deals with _____ branch?
HintNatural theory.
2). Hamming code belongs to ______ codes family?
HintThey belong to a family which on providing input provides constant output.
3). Which of the following is the function of hamming codes?
HintDetections process.
4). A parity type bit code in hamming codes performs _____?
HintDetections process.
5). A Parity bit is also called ____?
Hint3 types of bits.
6). A parity bit is represented in ____ types?
HintEven number of ways.
7). An Even parity bit is represented with ________binary digit?
HintLogic high.
8). An Odd parity bit is represented with ________binary digit?
HintLogic low.
Read more about Binary.
9). Parity bits are added to string of ____?
HintRepresented in 0' and 1's.
10). How many minimum number of bytes a parity bit is applied?
HintEven number value.
11). A hamming code has ____ factors?
HintTerms related to hamming codes parameters.
12). Which of the following scientist invented Hamming code?
HintRichard W Hamming scientist invented Hamming code.
13). Which of the following is the block length formula in hamming code?
HintPower formula.
14). Which of the following is the message length formula in hamming code?
HintPower formula.
15). In Hamming (7,4) Which of the following is the value of r?
HintOdd value.
16). Hamming code is represented mathematically using_________?16. Hamming code is represented mathematically using_________?
HintA matrix which represents even and odd terms.
17). Linear type error correction codes are applicable for ______?
HintOutput with constant value.
18). Linear codes are classified in to ____ types?
HintEven number of ways.
19). A hamming code repeats 4bit of messages with ____ bit of code words in [7,4]?
HintOdd number.
20). Hamming code can correct and detect error at _____ condition of error rate?
HintLeast values.
21). Which of the following term in hamming code defines SECDED?
HintError correction and detection methods.
22). Which of the following term is varied in hamming code when odd number of bits are varied while transmission?
HintEven or odd terms in digital digits represents?
23). In which of the following condition error is undetected in hamming code?
Hint2,4,6,8 terms are?
24). In which of the following condition error is detected in hamming code?
Hint1,3,5,7 digits are?
25). In a noisy condition, a message bit is ________?
HintTerminated.

Hamming Code Interview Questions and Answers

26). In two out of five code 5 bits contains _____ number of 1’s?
HintEven number.
27). In two out of five code 5 bits contains _____ number of 0’s?
HintOdd number.
28). Which of the following is repetitive code for n=3?
HintOdd values.
29). A code which reconstructs back actual message although in presence of error is called _____?
HintA methods that adds extra bits.
30). How many possible single error bits do a 7 bit error correcting bits comprises of?
HintOdd values.
31). On which of the following factors do hamming code mostly focus on?
HintDepends on distance factor.
32). Which of the following logic gate is used while performing Hamming code?
HintA logic gate constructed using combination of 2 gates.
33). In how many steps hamming algorithm can be minimized?
HintOdd number of steps.
34). Which of the following is the 1 st step of hamming algorithm?
HintFinding bits value.
35). Which of the following is the 2 nd step of hamming algorithm?
HintRearranging bits.
36). Which of the following is the 3 rd step of hamming algorithm?
HintFinding values.
37). Which of the following is the 4 th step of hamming algorithm?
HintFinding odd and even values.
38). Which of the following is the data word of byte for encoded data “10011010”?
Hinta-The data word of byte for encoded data “10011010” is __1_001_1010.
39). Which of the following is the code word of byte for encoded data “10011010”?
HintAdd 0's and 1's to the binary code.
40). Which of the following is data bits of (3,1) Hamming code?
HintLeast number in (3,1).
41). Which of the parity bits of (3,1) Hamming code?
Hint3-1=?
42). Which of the total bits of (3,1) Hamming code?
HintMaximum value.
43). Which of the following is data bits of (127, 120) Hamming code?
HintMinimum value.
44). Which of the following is parity bits of (127, 120) Hamming code?
Hint127-120=?
45). Which of the following is total bits of (127, 120) Hamming code?
HintMaximum value.
46). Which of the following is the value of rate of hamming code (255,247)?
Hintr=247/255=?
47). Which of the following is the value of rate of hamming code (3,1)?
Hintr=1/3=?
48). Which of the following is the value of rate of hamming code (7,4)?
Hint4/7=?
49). A error detection type codes are classified in to ____ types?
HintOdd values.
50). Data over communication channel is disrupted due to ____?
HintInterruption in signal property.

Hamming Code Important Questions for Exams

51). When the received and input data do not match then the data is called?
HintDisturbance in signal leads to?
52). Digital data is represented in____?
HintBinary digits.
53). How many errors do digital data bits consist of?
HintOdd number.
54). Which of the following type of codes are added to data bits while transmitting to identify errors?
HintData that protects a storage array against data loss in the event of a hard disk failure.
55). A redundancy bit is also called ____?
HintA correcting method.
56). Error correction bit is performed in ___ types?
HintEven number of types.
57). In which of the following method receiver sends a request to sender for retransmitting the data which the receiver detects as error bit/message?
HintCorrection method.
58). In which of the following method received error data is automatically corrected and original data is recovered?
HintA process of detecting errors in transmitted messages and reconstructing the original error-free data.
59). Which of the following is the formula for combination of information bits when there are “” number of bits and “r” number of redundant bits?
HintProduct of terms.
60). How many types of error detection methods exists in digital communication?
HintOdd number of types.
61). Which of the following is the representation of even parity of binary number “1001001”?
HintAdd logic 1 to the given number.
62). Which of the following is the representation of odd parity of binary number “1001001”?
HintAdd logic 0 to the given number.
63). A error free data received should contain ___ number of 1’s to ensure that the received data is error free?
Hint2,4,6,8 are ____ numbers?
64). Which of the following error detection method is less expensive compared to other error detection methods?
HintA data that represents even or odd number.
65). Which of the following is the abbreviation of LRC in error detection method?
HintAlso called horizontal redundancy check.
66). Which of the following is the function of LRC error detection method?
HintAdds data.
67). Which of the following is the abbreviation of CRC error detection method?
HintAn error-detecting code.
68). Which of the following error detection method detects whether the received data is original data or not?
HintA method that detects accidental changes/errors in the communication channel.
69). Which of the following error detection method uses binary division?
HintA method that detects accidental changes/errors in the communication channel.
70). Which of the following are the components of binary division?
Hint3 components.
71). At which of the following point Cyclic Redundancy Check (CRC) error detection method performs binary division?
HintMethod performed from senders end..
72). Up to how many intermediate errors do hamming code detects?
HintMinimum number.
73). The redundant bits in hamming code is added at ____ end?
HintAt initial point in communication.
74). Which of the methods drawback do hamming code overcome?
HintA method that defines odd and even bits.
75). Hamming codes are added to _____________?
HintActual bits.

Hamming Code Quiz Questions and Answers.

76). In which of the following application hamming codes are widely used?
HintA location that stores data.
77). In the formula n+p+1 the value of n+p is called_________?
HintIncorrect location.
78). In the formula n+p+1 the value of “1” is called_________?
HintAccurate data.
79). In hamming code the power of “p” is given power in terms of ____?
HintAlternate numbers.
80). In how many steps hamming code can be decrypted?
HintOdd number of steps.
81). Which of the following is the first step of hamming code?
HintFinding quantity.
82). Which of the following is the second step of hamming code?
HintReplace error bits.
83). Which of the following is the 3 rd step of hamming code?
HintViewing for even or odd type.
84). Which of the following is the formula used for counting no of redundant type bits?
HintSum of terms.
85). Which of the following is the value of parity bit p1?
HintOdd terms.
86). Which of the following is the value of parity bit p2?
HintCombination of odd and even terms.
87). Which of the following is the value of parity bit p3?
HintSubtraction values.
88). Which of the following are the advantages of hamming codes?
HintCorrection and detection process.
89). Which of the following are the disadvantages of hamming codes?
HintThe disadvantages of hamming codes is effective for single bit error based correction and detection and can resolve only single bit type errors alone.
90). Which of the following are the applications of hamming codes?
HintCommunication bus.
91). Are hamming code cyclic?
HintHamming codes are cyclic in nature.
92). The process of encryption is done at ____ end in digital communication?
HintOccurs are initiating point in communication.
93). The process of decryption is done at ____ end in digital communication?
HintOccurs at opposite end of sender.
94). Which of the following is the formula for rate in hamming code?
HintRatio of terms.
95). Which of the following are the examples of block codes?
HintCodes used in wireless communications.
96). A message length in digital communication is also called _____?
HintMeasured in terms of A message length in digital communication is also called dimensions.
97). A parity check matrix represents ___ code word relation?
HintRelated to hamming code.
98). A parity check type matrix is derived from ______?
HintMatrix whose rows form a basis for a linear code.
99). At which of the following conditions ECC memory cannot tolerate?
Hint3 conditions.
100). _____ is zero matrix?
HintProduct of terms.
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