CASS Software Certification & Testing 2 — Questions and Answers
Question 1: In CASS certification testing, what is the primary purpose of the 'false positive' metric?
- Measuring addresses incorrectly flagged as undeliverable (Correct answer)
- Measuring addresses that bypass ZIP+4 lookup
- Counting duplicate records in a mailing list
- Identifying addresses with missing secondary information
Correct answer: Measuring addresses incorrectly flagged as undeliverable
False positives in CASS testing refer to valid, deliverable addresses that the software incorrectly flags as undeliverable.
Question 2: Which USPS publication defines the technical specifications that CASS-certified software must meet?
- Publication 28 – Postal Addressing Standards (Correct answer)
- Publication 100 – USPS National Customer Support Center
- Publication 407 – International Mail Manual
- Publication 65 – Domestic Mail Manual
Correct answer: Publication 28 – Postal Addressing Standards
Publication 28 (Postal Addressing Standards) outlines the address formats and standards that CASS software must correctly process.
Question 3: A CASS-certified software system processes a batch of addresses and returns a DPV confirmation code of 'S'. What does this mean?
- The address matched only to the primary range, not the secondary (Correct answer)
- The address is confirmed as a vacant property
- The address matched fully including secondary information
- The address could not be matched to any delivery point
Correct answer: The address matched only to the primary range, not the secondary
DPV code 'S' indicates the primary address matched but the secondary component (such as an apartment number) did not confirm.
Question 4: During CASS cycle testing, what happens to software that fails to achieve the minimum match rate threshold?
- It loses CASS certification and cannot process presort mailings (Correct answer)
- It must resubmit only the failed address categories
- It receives a provisional certification for 90 days
- It is granted an automatic appeal period of 180 days
Correct answer: It loses CASS certification and cannot process presort mailings
Software that fails to meet USPS match rate thresholds loses its CASS certification, preventing its use for bulk presort discounts.
Question 5: What is the significance of the 'CASS Form 3553' in the mailing process?
- It is the certification summary report that mailers submit with presorted mail (Correct answer)
- It authorizes a vendor to access the USPS AMS database
- It requests a new CASS certification cycle from the USPS
- It documents address correction complaints from recipients
Correct answer: It is the certification summary report that mailers submit with presorted mail
CASS Form 3553 is submitted with presorted mailings to document the address quality processing performed by CASS-certified software.
Question 6: Which element does CASS software standardize when it encounters a directional abbreviation in an address?
- Street directionals like 'North' or 'Southwest' (Correct answer)
- City name abbreviations
- State name spellings
- ZIP Code format variations
Correct answer: Street directionals like 'North' or 'Southwest'
CASS software standardizes directional components (N, S, E, W, NE, SW, etc.) to USPS-approved abbreviations in street addresses.
Question 7: In software certification testing, what does 'regression testing' specifically validate after a CASS database update?
- That previously passing addresses still process correctly with the new data (Correct answer)
- That the software correctly handles brand-new address formats only
- That database download speeds meet USPS latency requirements
- That the software's user interface matches USPS design guidelines
Correct answer: That previously passing addresses still process correctly with the new data
Regression testing after a database update ensures that addresses which matched correctly before still match correctly, confirming no breakage was introduced.
CASS Software Certification & Testing 2
In CASS certification testing, what is the primary purpose of the 'false positive' metric?