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Error Detection Alphanumeric Code Verification 1 Flashcards

6 cards from real USPS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Error Detection Alphanumeric Code Verification 1 flashcards as text

  1. Compare the following two codes: 7MT-2264-QX8 and 7MT-2264-QX8. Is there an error?

    Answer: No error — the codes are identical

    Both codes read 7MT-2264-QX8 exactly. Every character in each segment matches, so there is no error.

  2. Compare the following two codes: PK3-8819-ZF5 and PK3-8891-ZF5. Is there an error?

    Answer: Yes, there is an error in the second group of characters

    The second segment differs: the original reads 8819, but the copy reads 8891. The final two digits have been transposed — 19 became 91.

  3. Compare the following two codes: DW4-7731-HS6 and DW4-7731-HB6. Is there an error?

    Answer: Yes, there is an error in the third group of characters

    The third segment differs: the original ends with HS6, but the copy shows HB6. The letter S has been incorrectly changed to B.

  4. Compare the following two codes: 6YN-4453-CX2 and 6VN-4453-CX2. Is there an error?

    Answer: Yes, there is an error in the first group of characters

    The first segment differs: the original reads 6YN, but the copy shows 6VN. The letter Y has been incorrectly replaced with V, which looks visually similar.

  5. Compare the following two codes: 5JC-3384-NR1 and 5JC-3384-NR7. Is there an error?

    Answer: Yes, there is an error in the third group of characters

    The third segment differs: the original ends with NR1, but the copy shows NR7. The digit 1 has been incorrectly changed to 7 at the very last position.

  6. Compare the following two codes: TH9-6627-WM4 and TH9-6672-WM4. Is there an error?

    Answer: Yes, there is an error in the second group of characters

    The second segment differs: the original reads 6627, while the copy shows 6672. The digits 2 and 7 in the third and fourth positions have been transposed.