For a Citrix Virtual Desktops Site using mirrored SQL Server database, which collation sequence should be used when creating an empty database on the principal SQL Server?

For a Citrix Virtual Desktops Site using mirrored SQL Server database, which collation sequence should be used when creating an empty database on the principal SQL Server?

• A. _100_CI_AS_KS
• B. _100_CI_AI_WS
• C. _100_CI_AI_SC
• D. _CS_AI_AS

Answer: (A)

Collation defines how strings are compared and sorted in SQL Server, including rules for case, accents, and language-specific characters. In a Database Mirroring setup, the same collation must be used on both the principal and the mirror for every database so data comparisons and operations stay consistent across the partners. For a Citrix Virtual Desktops deployment, using a collation that is case-insensitive but still respects accents and Kana differences gives robust handling of multilingual data without the risk of mismatches due to letter case. The _100_CI_AS_KS option provides: - CI: case-insensitive comparisons, which avoids issues where identical data differing only by letter case would be treated as different records (common with usernames, display names, etc.). - AS: accent-sensitive comparisons, so characters like é and e are distinguished, reducing ambiguity in diacritics. - KS: Kana-sensitive comparisons, which correctly differentiates Kana characters in Japanese data. This combination supports accurate, predictable behavior in multilingual environments and aligns with typical Citrix data handling in a mirrored SQL Server environment. The other options introduce either accent-insensitive behavior or case sensitivity, or mix properties in nonstandard ways (such as attempting to combine conflicting attributes), which can lead to data misinterpretation or replication issues and are not recommended for this scenario.

Collation defines how strings are compared and sorted in SQL Server, including rules for case, accents, and language-specific characters. In a Database Mirroring setup, the same collation must be used on both the principal and the mirror for every database so data comparisons and operations stay consistent across the partners.

For a Citrix Virtual Desktops deployment, using a collation that is case-insensitive but still respects accents and Kana differences gives robust handling of multilingual data without the risk of mismatches due to letter case. The _100_CI_AS_KS option provides:

• CI: case-insensitive comparisons, which avoids issues where identical data differing only by letter case would be treated as different records (common with usernames, display names, etc.).

• AS: accent-sensitive comparisons, so characters like é and e are distinguished, reducing ambiguity in diacritics.

• KS: Kana-sensitive comparisons, which correctly differentiates Kana characters in Japanese data.

This combination supports accurate, predictable behavior in multilingual environments and aligns with typical Citrix data handling in a mirrored SQL Server environment.

The other options introduce either accent-insensitive behavior or case sensitivity, or mix properties in nonstandard ways (such as attempting to combine conflicting attributes), which can lead to data misinterpretation or replication issues and are not recommended for this scenario.