Associate Software Engineer

A train 120 meters long passes a pole in 10 seconds. What is the speed of the train?
a) 10 m/s
b) 12 m/s
c) 14 m/s
d) 15 m/s

If the sum of three consecutive even numbers is 48, what is the largest number?
a) 14
b) 16
c) 18
d) 20

Find the output of the given code snippet?

int a = 5;
int b = ++a + a++ + ++a;
Console.WriteLine(b);

In a certain code language, if CAT = 24 and DOG = 26, then BAT = ?
a) 22
b) 23
c) 25
d) 27

Pointing to a photograph, Ramesh said, "He is my father's only son's son." How is the person related to Ramesh?
a) Brother
b) Cousin
c) Father
d) Son

Which of the following is a primary key?
a) A field that uniquely identifies each record in a table
b) A field that allows duplicate values
c) A field that stores large text data
d) A field that references another table

Which SQL command is used to remove all rows from a table without removing the table structure?
a) DELETE
b) REMOVE
c) DROP
d) TRUNCATE

Which of the following is not a type of database relationship?
a) One-to-One
b) One-to-Many
c) Many-to-Many
d) One-to-None

Which of the following statements about foreign keys is true?
a) They must be unique
b) They can be null
c) They define entity identity
d) They delete parent rows automatically

Which of the following SQL statements is used to retrieve unique values from a column?
a) SELECT ALL column_name FROM table_name;
b) SELECT UNIQUE column_name FROM table_name;
c) SELECT DISTINCT column_name FROM table_name;
d) SELECT DIFFERENT column_name FROM table_name;

You are given an integer ‘N’. Your task is to print the following pattern for the ‘N’ number of rows.

For Example:

Pattern for ‘N’ = 5:

The dots represent spaces.

Note:

‘N’ is always odd.

You are given a string 'str' of length 'N'.

Your task is to reverse the original string word by word.

There can be multiple spaces between two words and there can be leading or trailing spaces but in the output reversed string you need to put a single space between two words, and your reversed string should not contain leading or trailing spaces.

Example :

If the given input string is "Welcome to Coding Ninjas", then you should return "Ninjas Coding to Welcome" as the reversed string has only a single space between two words and there is no leading or trailing space.

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