Quick Answer
The answer is SQL Agent jobs, cross-database queries using three- and four-part names, and instance-scoped features like linked servers. These are exclusive to Azure SQL Managed Instance because it provides near-full SQL Server engine compatibility within a shared instance boundary, whereas Azure SQL Database single databases operate as isolated logical silos without instance-level context. On the Microsoft Azure Database Administrator Associate DP-300 exam, this distinction tests your understanding of when to choose Managed Instance over single database for lift-and-shift migrations requiring agent automation or cross-database logic. A common trap is assuming that elastic query or external tables in single database offer the same capability, but they lack the native instance-scoped querying and job scheduling that Managed Instance provides. Remember the mnemonic “SIL” for SQL Agent, Instance-scoped queries, and Linked servers—if you need any of these, you need Managed Instance.
This DP-300 practice question tests your understanding of plan and implement data platform resources. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which THREE of the following are features available in Azure SQL Managed Instance that are not available in Azure SQL Database (single database)?
Transparent Data Encryption (TDE)
Why wrong: Both support TDE.
Cross-database queries (three- and four-part names)
Managed Instance supports cross-database queries, single DB does not.
Elastic pools
Why wrong: Both support elastic pools.
Service Broker
Service Broker is available in Managed Instance, not in single DB.
SQL Agent jobs
SQL Agent is available in Managed Instance, not in single DB.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Cross-database queries (three- and four-part names)
Cross-database queries using three- and four-part names (e.g., `[DB1].[schema].[table]`) are supported in Azure SQL Managed Instance because it provides full SQL Server engine compatibility, including the ability to query across databases within the same instance. Azure SQL Database single databases are isolated and do not support cross-database queries, as each database is a separate logical boundary without instance-level context.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Transparent Data Encryption (TDE)
Why it's wrong here
Both support TDE.
Cross-database queries (three- and four-part names)
Why this is correct
Managed Instance supports cross-database queries, single DB does not.
Related concept
Read the scenario before looking for a memorised answer.
Elastic pools
Why it's wrong here
Both support elastic pools.
Service Broker
Why this is correct
Service Broker is available in Managed Instance, not in single DB.
Related concept
Read the scenario before looking for a memorised answer.
SQL Agent jobs
Why this is correct
SQL Agent is available in Managed Instance, not in single DB.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
The trap here is that candidates often confuse features available in both services (like TDE) with those exclusive to Managed Instance, or they incorrectly assume Elastic pools are a Managed Instance feature when they are actually a single-database scaling option.
Detailed technical explanation
Cross-database queries in Managed Instance rely on the same SQL Server engine that supports database chaining and cross-database ownership, enabling queries like `SELECT * FROM DB2.dbo.Table`. This is possible because Managed Instance runs in a full SQL Server instance context with shared tempdb and system databases, whereas Azure SQL Database single databases are isolated at the serverless or provisioned tier without instance-level metadata sharing. In real-world scenarios, this allows migration of legacy applications that use cross-database references without rewriting queries.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
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FAQ
Plan and implement data platform resources — This question tests Plan and implement data platform resources — Read the scenario before looking for a memorised answer..
The correct answer is: Cross-database queries (three- and four-part names) — Cross-database queries using three- and four-part names (e.g., `[DB1].[schema].[table]`) are supported in Azure SQL Managed Instance because it provides full SQL Server engine compatibility, including the ability to query across databases within the same instance. Azure SQL Database single databases are isolated and do not support cross-database queries, as each database is a separate logical boundary without instance-level context.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
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