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Question 1

A database administrator needs a tool to document and explain the relationships between data in an organization's database. Which of the following is the best tool to accomplish this task?

Options :

A : Text editor

B : UML editor

C : Word processor

D : SQL query

Answer: B

Question 2

Which of the following resources is the best way to lock rows in SQL Server?

Options :

A : TID

B : SID

C : RID

D : PID

Answer: C

Question 3

Which of the following are the best resources for monitoring potential server issues? (Choose two.)

Options :

A : User connections

B : Firewall usage

C : Index usage

D : CPU usage

E : Query execution

F : Memory usage

Answer: D,F

Question 4

A data scientist is building an inferential model with a single predictor variable. A scatter plot of the independent variable against the real-number dependent variable shows a strong relationship between them. The predictor variable is normally distributed with very few outliers. Which of the following algorithms is the best fit for this model, given the data scientist wants the model to be easily interpreted?

Options :

A : A logistic regression

B : An exponential regression

C : A linear regression

D : A probit regression

Answer: C

Question 5

Which of the following describes the purpose of a snapshot?

Options :

A : To create a dynamic data replication

B : To create a synonym

C : To create a tablespace

D : To create an image of a database

Answer: D