Answer the following statements true (T) or false (F)

1. The advantage of using XML to define data is that, in the XML format, data are stored in a pure text format and not dependent on any proprietary software.
2. There are three standard formats for mainframe computers: zoned decimal, packed decimal, and binary.
3. A zoned decimal is used to determine whether the XML document content is valid, that is, whether it conforms to the order and type of data that must be present in the document.
4. The packed decimal format is commonly used to save space on file layouts and for elements that require a high level of arithmetic to be performed on them.

1. TRUE
2. TRUE
3. FALSE
4. TRUE