Exam FC0-U61 topic 1 question 63 discussion

I've seen a lot of confusion in the comments here, but we need to think out of the box! Some countries use only numbers for postcodes, whilst others a combination of letters/characters and numbers (i.e. UK). If your database is only used for a specific area that only a certain type of postcodes is used (e.g. number) you can use integers and throw a warning if the field is of a different type OR go with string types and simply cast/convert to integer (if that conversion fails --> it's not only numbers). String so that we cover all different cases

U learn something new everyday. Didn't even know postal codes could have - and letters.

string, because of the "-" character

It should be a string because you wouldn't need to use the numbers inside of the postal code for computation, so a string format would be more efficient

B. String A postal code (also known locally in various English-speaking countries throughout the world as a postcode, post code, PIN or ZIP Code) is a series of letters or digits or both

String is correct because some postal codes starts with zeros.

B is correct. an integer is used in calculations. Even though a postal code is a number, it's used as text(string) to ID a location, and not used in maths.

It should be integer. Not a string.

it should be A I think,