Test Your Programming Skills with Safcode!

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Here is all important interview / exams questions.
Student doing practice apptitude test on safcode platform.
Instruction: "Total Number of Questions: 20
Each question carry 10 mark , no negative marking"

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Quiz Start

1. Character? limit to create database name in mysql? 64
54
44
40

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2. Which of the following command is used to select a particular database? Show
Display
USE
Select

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3. Which of the following are types of synchronization? Asynchronous
Both Asynchronous & Semisychronous
None of them
Semisychronous

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4. A view is nothing but a ________ table. Virtual
Dynamic
Real
Static

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5. Which of the following function returns the number of unique values in a column? sUM()
COUNT(expression)
COUNT(*)
COUNT(DISTINCT)

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6. A view is a __________ Table. Static
Real
Virtual
Dynamic

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7. ________________ is the capability of a system, network, or process to manage a growing amount of work, or its ability to enlarge so as to adapt to that growth CPU Utilization
Performance
Scalability
Performance optimization

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8. How much storage space does DATETIME require? 8 bytes
1 byte
2 bytes
4 bytes

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9. A good example of a distributed application is ____________. Collaboration application
Twitter
Computer application
System application

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10. A_________ attribute may itself contain two or more attributes, which represent basic attribute having independent meanings of their own. Dependent
multi-valued
Composite
Derived

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11. What SQL clause is used to restrict the rows returned by a query? And
From
Having
Where

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12. Hot data means: Data which is not processed
Data being processed
Data not in use
Data in Database

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13. Which MySQL statement is used to delete data from a database? REMOVE
DELETE
EDIT
COLLAPSE

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14. which of the following commands is used view the default installed database? SHOW DATABASE
SELECT DATABASE
DISPLAY DATABASE
VIEW DATABASE

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15. A__________ is used to group related files that together store a database object MetaData
Data file
Data Sheet
Filegroup

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16. Microsoft SQL Server data base engine provides a relational__________ named as Azure SQL Database. Database-As-A Service (DBaaS)
Infrastructure as a service (IAAS)
All of them
Platform as a Service (PaaS)

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17. Which is the default order of sort in ORDER BY clause? Both Ascending and Descending
Descending
Ascending
Not in Order by Default

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18. What is a candidate key? None of Them
Alias for foreign key
Used to identify a column
Used to uniquely identify a Tuple

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19. A systematic collection of data stored in a central location is known as? None of Them
CSV
Database
Excel

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20. Which of the following command is used to get current date/time? All of Them
select curdate();
select curtime();
select currenttime();

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