SQL Server Online Test

About the test:

The SQL Server Online test uses scenario-based MCQs to evaluate candidates on their knowledge of SQL Server, including their proficiency in writing complex SQL queries, administering SQL Server instances, and managing data. Additionally, the test assesses a candidate's understanding of SQL Server security, performance optimization, and disaster recovery. The test aims to evaluate a candidate's ability to work with SQL Server effectively and efficiently in various real-world scenarios.

Covered skills:

Transactional and relational Database
Database & Database Objects
Synchronization
Database Monitoring & Maintenance
SQL Server Database Security & Troubleshooting

Configurations
Installation
Transaction Logs
Backup & Recovery
Storage Area Network (SAN)

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9 reasons why

Adaface SQL Server Online Test is the most accurate way to shortlist SQL Server DBAs

Reason #1

Tests for on-the-job skills

高级候选人的问题评估了高级主题，例如：

查询优化：问题评估候选人使用索引，分区和其他技术优化查询的能力。该技能对于改善数据库性能和可扩展性至关重要。
数据库设计：预计候选人将精通数据库设计，归一化和架构设计。这些知识对于设计高效且可维护的数据库至关重要。
存储过程和功能：问题评估候选人编写有效且可重复使用的存储程序和功能的能力。该技能对于减少冗余代码和改善数据库性能很重要。
交易和锁定：候选人对交易，隔离水平和锁定机制的理解进行了评估。这些知识对于确保数据完整性和避免并发问题至关重要。
性能调整：问题评估候选人在SQL Server中诊断和解决性能问题的能力。此技能对于确保数据库可以处理大量数据和大量用户流量很重要。
高可用性和灾难恢复：候选人有望熟练配置高可用性和灾难恢复解决方案，例如聚类，复制和备份/备份/还原。这些知识对于确保始终可用并保护关键数据库至关重要。
安全与合规性：问题评估候选人对SQL Server安全功能和合规性法规（例如GDPR和HIPAA）的理解。这些知识对于确保数据库安全并符合法律和监管要求很重要。
商业智能：评估候选人使用SQL Server工具（例如分析服务，集成服务和报告服务）设计和开发商业智能解决方案的能力。这些知识对于提供洞察力和数据驱动的决策很重要。
** ETL流程**：问题评估候选人使用SQL Server Integration Services设计和实施提取，转换，加载（ETL）进程的能力。该技能对于整合来自不同来源的数据并将其转换为可用信息很重要。
数据仓库：预计候选人将熟练使用SQL Server工具（例如分析服务和集成服务）设计和实施数据仓库解决方案。这些知识对于为大量数据提供中央存储库以及启用数据分析和报告很重要。

Reason #2

No trick questions

Traditional assessment tools use trick questions and puzzles for the screening, which creates a lot of frustration among candidates about having to go through irrelevant screening assessments.

The main reason we started Adaface is that traditional pre-employment assessment platforms are not a fair way for companies to evaluate candidates. At Adaface, our mission is to help companies find great candidates by assessing on-the-job skills required for a role.

Why we started Adaface ->

Reason #3

Non-googleable questions

We have a very high focus on the quality of questions that test for on-the-job skills. Every question is non-googleable and we have a very high bar for the level of subject matter experts we onboard to create these questions. We have crawlers to check if any of the questions are leaked online. If/ when a question gets leaked, we get an alert. We change the question for you & let you know.

These are just a small sample from our library of 10,000+ questions. The actual questions on this Microsoft SQL Server Test will be non-googleable.

🧐 Question
Medium Backup Strategy Backups Troubleshooting	Solve
As a DBA, you receive an alert notifying you that the production database has gone offline due to a severe issue. Fortunately, you have a proper backup strategy in place. The backups are performed as follows: 1. Full database backup every Sunday at 2:00 AM. 2. Differential backup every day at 2:00 AM, except Sunday. 3. Transaction log backup every hour. Today is Wednesday, and the failure occurred at 10:15 AM. You have the following backup files available: 1. Full backup: Full_Backup_Sun.bak taken on Sunday 2:00 AM. 2. Differential backups: Diff_Backup_Mon.bak, Diff_Backup_Tue.bak, Diff_Backup_Wed.bak taken at 2:00 AM on their respective days. 3. Transaction log backups: Hourly backups from Sunday 3:00 AM until Wednesday 10:00 AM, like TLog_Backup_Wed_09.bak, TLog_Backup_Wed_10.bak. Given the RPO (Recovery Point Objective) of 15 minutes, which of the following sequences of restore operations would ensure minimal data loss? A: Full_Backup_Sun.bak, Diff_Backup_Wed.bak, then all Transaction Log backups from Wednesday. B: Full_Backup_Sun.bak, Diff_Backup_Tue.bak, then all Transaction Log backups from Tuesday and Wednesday. C: Full_Backup_Sun.bak, Diff_Backup_Wed.bak, then Transaction Log backups from Wednesday 2:00 AM to 10:00 AM. D: Full_Backup_Sun.bak, then all Transaction Log backups from Sunday to Wednesday 10:00 AM. E: Full_Backup_Sun.bak, Diff_Backup_Mon.bak, Diff_Backup_Tue.bak, Diff_Backup_Wed.bak, then Transaction Log backups from Wednesday 2:00 AM to 10:00 AM.
Medium Transaction Log Management Performance Tuning Log Management	Solve
You are a DBA at a large company managing an SQL Server database which is crucial for daily operations. The database is configured with the Full recovery model. The database is experiencing considerable transaction log growth during business hours, which is impacting the disk space and performance. The following operations are performed on this database: 1. A large ETL process that runs every night, which transforms and loads data into several tables. 2. A data archiving job that runs every night, which removes old data from several tables. 3. Frequent read/write operations during the day as part of normal business operations. Given this scenario, which of the following strategies could help manage the transaction log growth effectively? A: Switch to the Simple recovery model. B: Schedule frequent log backup and cleanups during business hours. C: Shrink the transaction log file size during business hours. D: Increase the database file size.
Medium Multi Select	Solve
Consider the following SQL table: How many rows does the following SQL query return?
Medium Select & IN	Solve
Consider the following SQL table: Which of the following SQL queries would return the year when neither a football or cricket winner was chosen?
Hard With, AVG & SUM	Solve
Consider the following SQL table: How many tuples does the following query return?

	🧐 Question	🔧 Skill
	Medium Backup Strategy Backups Troubleshooting	3 mins SQL Server	Solve
As a DBA, you receive an alert notifying you that the production database has gone offline due to a severe issue. Fortunately, you have a proper backup strategy in place. The backups are performed as follows: 1. Full database backup every Sunday at 2:00 AM. 2. Differential backup every day at 2:00 AM, except Sunday. 3. Transaction log backup every hour. Today is Wednesday, and the failure occurred at 10:15 AM. You have the following backup files available: 1. Full backup: Full_Backup_Sun.bak taken on Sunday 2:00 AM. 2. Differential backups: Diff_Backup_Mon.bak, Diff_Backup_Tue.bak, Diff_Backup_Wed.bak taken at 2:00 AM on their respective days. 3. Transaction log backups: Hourly backups from Sunday 3:00 AM until Wednesday 10:00 AM, like TLog_Backup_Wed_09.bak, TLog_Backup_Wed_10.bak. Given the RPO (Recovery Point Objective) of 15 minutes, which of the following sequences of restore operations would ensure minimal data loss? A: Full_Backup_Sun.bak, Diff_Backup_Wed.bak, then all Transaction Log backups from Wednesday. B: Full_Backup_Sun.bak, Diff_Backup_Tue.bak, then all Transaction Log backups from Tuesday and Wednesday. C: Full_Backup_Sun.bak, Diff_Backup_Wed.bak, then Transaction Log backups from Wednesday 2:00 AM to 10:00 AM. D: Full_Backup_Sun.bak, then all Transaction Log backups from Sunday to Wednesday 10:00 AM. E: Full_Backup_Sun.bak, Diff_Backup_Mon.bak, Diff_Backup_Tue.bak, Diff_Backup_Wed.bak, then Transaction Log backups from Wednesday 2:00 AM to 10:00 AM.
	Medium Transaction Log Management Performance Tuning Log Management	3 mins SQL Server	Solve
You are a DBA at a large company managing an SQL Server database which is crucial for daily operations. The database is configured with the Full recovery model. The database is experiencing considerable transaction log growth during business hours, which is impacting the disk space and performance. The following operations are performed on this database: 1. A large ETL process that runs every night, which transforms and loads data into several tables. 2. A data archiving job that runs every night, which removes old data from several tables. 3. Frequent read/write operations during the day as part of normal business operations. Given this scenario, which of the following strategies could help manage the transaction log growth effectively? A: Switch to the Simple recovery model. B: Schedule frequent log backup and cleanups during business hours. C: Shrink the transaction log file size during business hours. D: Increase the database file size.
	Medium Multi Select	2 mins SQL	Solve
Consider the following SQL table: How many rows does the following SQL query return?
	Medium Select & IN	3 mins SQL	Solve
Consider the following SQL table: Which of the following SQL queries would return the year when neither a football or cricket winner was chosen?
	Hard With, AVG & SUM	2 mins SQL	Solve
Consider the following SQL table: How many tuples does the following query return?

	🧐 Question	🔧 Skill	💪 Difficulty	⌛ Time
	Backup Strategy Backups Troubleshooting	SQL Server	Medium	3 mins	Solve
As a DBA, you receive an alert notifying you that the production database has gone offline due to a severe issue. Fortunately, you have a proper backup strategy in place. The backups are performed as follows: 1. Full database backup every Sunday at 2:00 AM. 2. Differential backup every day at 2:00 AM, except Sunday. 3. Transaction log backup every hour. Today is Wednesday, and the failure occurred at 10:15 AM. You have the following backup files available: 1. Full backup: Full_Backup_Sun.bak taken on Sunday 2:00 AM. 2. Differential backups: Diff_Backup_Mon.bak, Diff_Backup_Tue.bak, Diff_Backup_Wed.bak taken at 2:00 AM on their respective days. 3. Transaction log backups: Hourly backups from Sunday 3:00 AM until Wednesday 10:00 AM, like TLog_Backup_Wed_09.bak, TLog_Backup_Wed_10.bak. Given the RPO (Recovery Point Objective) of 15 minutes, which of the following sequences of restore operations would ensure minimal data loss? A: Full_Backup_Sun.bak, Diff_Backup_Wed.bak, then all Transaction Log backups from Wednesday. B: Full_Backup_Sun.bak, Diff_Backup_Tue.bak, then all Transaction Log backups from Tuesday and Wednesday. C: Full_Backup_Sun.bak, Diff_Backup_Wed.bak, then Transaction Log backups from Wednesday 2:00 AM to 10:00 AM. D: Full_Backup_Sun.bak, then all Transaction Log backups from Sunday to Wednesday 10:00 AM. E: Full_Backup_Sun.bak, Diff_Backup_Mon.bak, Diff_Backup_Tue.bak, Diff_Backup_Wed.bak, then Transaction Log backups from Wednesday 2:00 AM to 10:00 AM.
	Transaction Log Management Performance Tuning Log Management	SQL Server	Medium	3 mins	Solve
You are a DBA at a large company managing an SQL Server database which is crucial for daily operations. The database is configured with the Full recovery model. The database is experiencing considerable transaction log growth during business hours, which is impacting the disk space and performance. The following operations are performed on this database: 1. A large ETL process that runs every night, which transforms and loads data into several tables. 2. A data archiving job that runs every night, which removes old data from several tables. 3. Frequent read/write operations during the day as part of normal business operations. Given this scenario, which of the following strategies could help manage the transaction log growth effectively? A: Switch to the Simple recovery model. B: Schedule frequent log backup and cleanups during business hours. C: Shrink the transaction log file size during business hours. D: Increase the database file size.
	Multi Select	SQL	Medium	2 mins	Solve
Consider the following SQL table: How many rows does the following SQL query return?
	Select & IN	SQL	Medium	3 mins	Solve
Consider the following SQL table: Which of the following SQL queries would return the year when neither a football or cricket winner was chosen?
	With, AVG & SUM	SQL	Hard	2 mins	Solve
Consider the following SQL table: How many tuples does the following query return?

Reason #4

1200+ customers in 75 countries

With Adaface, we were able to optimise our initial screening process by upwards of 75%, freeing up precious time for both hiring managers and our talent acquisition team alike!

Brandon Lee, Head of People, Love, Bonito

Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment Microsoft SQL Server Test in your hiring process is that it is an elimination tool, not a selection tool. In other words: you want to use the test to eliminate the candidates who do poorly on the test, not to select the candidates who come out at the top. While they are super valuable, pre-employment tests do not paint the entire picture of a candidate’s abilities, knowledge, and motivations. Multiple easy questions are more predictive of a candidate's ability than fewer hard questions. Harder questions are often "trick" based questions, which do not provide any meaningful signal about the candidate's skillset.

Reason #6

1 click candidate invites

Email invites: You can send candidates an email invite to the Microsoft SQL Server Test from your dashboard by entering their email address.

Public link: You can create a public link for each test that you can share with candidates.

API or integrations: You can invite candidates directly from your ATS by using our pre-built integrations with popular ATS systems or building a custom integration with your in-house ATS.

Reason #7

Detailed scorecards & comparative results

Reason #8

High completion rate

Adaface tests are conversational, low-stress, and take just 25-40 mins to complete.

This is why Adaface has the highest test-completion rate (86%), which is more than 2x better than traditional assessments.

Reason #9

Advanced Proctoring

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What roles can I use the Microsoft SQL Server Test for?

SQL Server DBA
MS SQL Server Database Admin

What topics are covered in the SQL Server Online Test?

Windows模式，混合模式

两种身份验证模式

SQL Profiler

递归存储过程

本地和全球临时桌

检查约束

子查询

SQL Server代理

计划任务

合并

地板功能

锁

符号功能

当插入或更新或删除命令被执行时，用于执行一批SQL代码

扳机

身份列

#REF!

块状

动态SQL

联盟全部

设置Nocount On/Off语句

魔术表

SQL Server创建了魔术表以保持DML操作期间的值

基德

Charindex

对于子句

varchar和nvarchar类型

getDate和sysdateTime

表样本

用于随机提取行的样品，这是应用程序所必需的

XML数据类型

用于将XML文档存储在SQL Server数据库中

CDC

SQL注入

过滤索引

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The hiring managers felt that through the technical questions that they asked during the panel interviews, they were able to tell which candidates had better scores, and differentiated with those who did not score as well. They are highly satisfied with the quality of candidates shortlisted with the Adaface screening.

85%

reduction in screening time

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