Explore topic-wise MCQs in Structured Query Language (SQL).

This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Structured Query Language (SQL) knowledge and support exam preparation. Choose a topic below to get started.

1.

AN_XML_DEADLOCK_GRAPH_HAS________MAIN_SECTIONS.?$

A. 2
B. 3
C. 4
D. 5
Answer» C. 4
Discussion
2.

______________section_lists_all_the_resources_that_were_involved_in_the_deadlock.$

A. Processes
B. Resources
C. WAIT stats
D. All of the mentioned
Answer» D. All of the mentioned
Discussion
3.

Which of the following occurs when two connections need access to same piece of data concurrently and the meanwhile another is blocked because at a particular time, only one connection can have access ?

A. Lock
B. Block
C. Deadlock
D. Exclusive lock
Answer» C. Deadlock
Discussion
4.

Which of the following design strategy can reduce the occurrence of blocking locks ?

A. Use non-clustered indexes on high-usage tables
B. Use clustered indexes on high-usage tables
C. Use clustered indexes on less-usage tables
D. Make sure that CREATE and DROP statements use an existing index
Answer» C. Use clustered indexes on less-usage tables
Discussion