Fraud Specialist Interview Questions and Answers

Chargeback is a dispute between a customer and a merchant over a transaction. Credit card fraud is unauthorized use of a credit card.

• Chargeback occurs when a customer disputes a transaction and requests a refund from the merchant's bank.

• Credit card fraud is when someone uses another person's credit card without their permission.

• Examples of credit card fraud include skimming, phishing, and identity theft.

• Fraud specialists investigate and prevent both chargeback and credit card...read more

Chargebacks are a reversal of a credit card transaction by the card issuer.

• Chargebacks occur when a customer disputes a charge on their credit card statement.

• The card issuer investigates the dispute and may reverse the transaction if they find it to be valid.

• Merchants may be charged a fee for each chargeback they receive.

• Common reasons for chargebacks include fraud, product not received, or product not as described.

• Merchants can dispute chargebacks by providing evidence to th...read more

Types of keys in SQL include primary, foreign, and unique. Types of joins include inner, outer, left, and right.

• Primary key: uniquely identifies each record in a table

• Foreign key: links two tables together

• Unique key: ensures that each value in a column is unique

• Inner join: returns only the matching rows from both tables

• Outer join: returns all rows from both tables, with null values for non-matching rows

• Left join: returns all rows from the left table and matching rows from the...read more