Practice Error Correction Online Test 4 | Englishfreetest.com

  • Do test 20 minutes
  • Number Questions: 10 questions
  • By: englishfreetest.com
Do test

Here's the exercise 'Practice Error Correction Online Test 4 | Englishfreetest.com' about Practice English - Exercises and tests.


Practice English - Exercises and tests

English Grammar And Vocabulary Exercises / Tests
The following page contains links to different English exercises. It includes mainly links to:
1. Grammar exercises:
- Tenses
- Clauses
- Other grammar points
2. Vocabulary exercises:
- Basic English vocabulary
- Thematic vocabulary
- Idioms
3. Global English tests.

You can find more to the lesson and more exercises. Practice English - Exercises and tests in here.

Finally, click here to "Test" for start practice exercise .

  • Test content
    Question 1: In _____ coding, we divide our message into blocks, each of k bits, called ___
    A. block; blockwords
    B. linear; datawords
    C. block; datawords
    D. none of the above
    Question 2: We add r redundant bits to each block to make the length n = k + r. The resulting n-bit blocks are called _________
    A. datawords
    B. blockwords
    C. codewords
    D. none of the above
    Question 3: The ________ between two words is the number of differences between corresponding bits
    A. Hamming code
    B. Hamming distance
    C. Hamming rule
    D. none of the above
    Question 4: To guarantee the detection of up to 5 errors in all cases, the minimum Hamming distance in a block code must be _______
    A. 5
    B. 6
    C. 11
    D. none of the above
    Question 5: To guarantee correction of up to 5 errors in all cases, the minimum Hamming distance in a block code must be ________
    A. 5
    B. 6
    C. 11
    D. none of the above
    Question 6: In a linear block code, the _______ of any two valid codewords creates another valid code word
    A. XORing
    B. ORing
    C. ANDing
    D. none of the above
    Question 7: A simple parity-check code can detect __________ errors
    A. an even-number of
    B. two
    C. no errors
    D. an odd-number of
    Question 8: _______codes are special linear block codes with one extra property. If a codeword is rotated, the result is another codeword
    A. Non-linear
    B. Convolution
    C. Cyclic
    D. none of the above
    Question 9: The _____of errors is more difficult than the ______
    A. correction; detection
    B. detection; correction
    C. creation; correction
    D. creation; detection
    Question 10: In modulo-11 arithmetic, we use only the integers in the range ______, inclusive
    A. 1 to 10
    B. 1 to 11
    C. 0 to 10
    D. none of the above