NielsenIQ Senior Production Incharge Interview Questions and Answers

Q1. What is mutex and it's syntax?
Ans. 
A mutex is a synchronization primitive used to control access to shared resources in a multi-threaded environment.
• Mutex is typically used to protect critical sections of code to prevent race conditions.

• Syntax for using mutex in C++: std::mutex myMutex;

• To lock a mutex: myMutex.lock();

• To unlock a mutex: myMutex.unlock();
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Q2. What is a goroutine and how it's used?
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A goroutine is a lightweight thread managed by the Go runtime. It allows concurrent execution of functions.
• Goroutines are created using the 'go' keyword followed by a function call.

• They are used for concurrent programming in Go, allowing multiple functions to run simultaneously.

• Goroutines are more efficient than traditional threads as they have lower memory overhead and can be multiplexed onto fewer OS threads.

• Example:...read more
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DSA, Queries and logical coding

Q1. Not applicable for now
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Q2. Not aaica for now plese excuse
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Q1. Na for other please
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Q1. Self introduction
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Q2. Work experience
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Q3. Which department are u working
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Q4. Timings and salary
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Q1. Name and experience and quality and checking etc
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Q2. How can handle ur problem and team work
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Q3. Times and salary
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About current project and roles and resposibilities etc

Q1. SQL COMPLEX QUERIES and PL SQL, CRON JOBS, SERVICE NOW
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Q2. What are difference between SQL and PL SQL
Ans. 
SQL is a standard language for managing relational databases, while PL/SQL is a procedural language extension for SQL.
• SQL is a standard language for querying and manipulating data in relational databases.

• PL/SQL is a procedural language extension for SQL, allowing for more complex programming logic.

• SQL is used for data manipulation and retrieval, while PL/SQL is used for writing stored procedures and functions.

• SQL state...read more
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Q3. Explain types of joins?
Ans. 
Types of joins are used in databases to combine rows from two or more tables based on a related column between them.
• Inner Join: Returns rows when there is at least one match in both tables.

• Left Join (or Left Outer Join): Returns all rows from the left table and the matched rows from the right table.

• Right Join (or Right Outer Join): Returns all rows from the right table and the matched rows from the left table.

• Full Join...read more
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Q4. Diffence between correlated and non correlated subquary?
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Correlated subquery refers to a subquery that is dependent on the outer query, while non-correlated subquery can be executed independently.
• Correlated subquery is executed for each row processed by the outer query, while non-correlated subquery is executed only once.

• Correlated subquery is slower in performance compared to non-correlated subquery.

• Example: SELECT * FROM table1 WHERE column1 = (SELECT MAX(column2) FROM tab
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Q5. Find departement wise total sal?
Ans. 
To find department wise total salary, sum up the salaries of employees in each department.
• Group employees by department

• Calculate total salary for each department

• Display department wise total salary
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Easy logical questions

Q1. Easy general questions asked
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Q2. General questions
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Q3. Strength and weaknesses, about project
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Q1. Sql oracle service now
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Q2. Ticketing tool p1, p2,p3
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Q3. Kibana monitoring tool
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Q1. What is your interested subject
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Q2. Explain binary conversions
Ans. 
Binary conversions involve converting numbers from base 10 to base 2 and vice versa.
• Binary is a numbering system that uses only 0s and 1s.

• To convert from base 10 to base 2, divide the number by 2 and write down the remainder.

• To convert from base 2 to base 10, multiply each digit by its place value and add the results.

• Binary is commonly used in computer programming and digital electronics.
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Q3. What is STLD full form
Ans. 
STLD stands for Sequentially Timed Logic Diagram.
• STLD is a graphical representation of digital circuits.

• It shows the timing relationship between inputs and outputs.

• It is used in the design and analysis of digital circuits.

• STLD is commonly used in the field of electronics and computer engineering.
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Q4. Enother intrested subject
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Q5. Optical communication
Ans. 
Optical communication involves transmitting information using light waves.
• Optical communication is faster and more secure than traditional copper wire communication.

• Fiber optic cables are used to transmit light signals over long distances.

• Examples of optical communication include internet and cable TV.

• Optical communication is also used in medical equipment such as endoscopes and laser surgery tools.
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Q6. About your self introduction
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Q7. U know any languages
Ans. 
Yes, I am fluent in English and Spanish.
• Fluent in English and Spanish

• Able to communicate effectively with a diverse team

• Experience working in bilingual environments

• Proficient in technical vocabulary in both languages
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Q1. What is ECE Full form
Ans. 
ECE stands for Electronics and Communication Engineering.
• ECE is a branch of engineering that deals with the study of electronic devices and communication systems.

• It involves the design, development, and testing of electronic equipment and communication systems.

• Examples of ECE devices include smartphones, computers, televisions, radios, and satellites.

• ECE engineers work in various industries such as telecommunications, ...read more
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Q2. What is k maps explain
Ans. 
Karnaugh maps (K-maps) are a graphical method of simplifying Boolean algebra expressions.
• K-maps are used to simplify Boolean expressions with multiple variables.

• They are a visual aid that helps identify groups of adjacent 1's or 0's.

• The groups can then be combined to create a simplified expression.

• K-maps are commonly used in digital logic design and circuit analysis.

• Example: A 2-variable K-map can simplify the expressi...read more
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Q3. Why using optical communication
Ans. 
Optical communication offers high bandwidth, low interference, and secure data transmission.
• Optical communication uses light waves to transmit data, allowing for higher bandwidth and faster data transfer rates.

• It is less susceptible to interference from electromagnetic radiation and can transmit data over longer distances without degradation.

• Optical communication is also more secure than traditional copper wire communi...read more
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Q4. Purpose of optical communication
Ans. 
Optical communication is the use of light to transmit information through optical fibers.
• Optical communication is faster and more efficient than traditional copper wire communication.

• It is used in telecommunications, internet, and cable television networks.

• Optical communication is also used in medical equipment such as endoscopes and laser surgery tools.

• It allows for long-distance communication without signal degradati...read more
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Q5. Types of optical outputs
Ans. 
Optical outputs include digital optical, analog optical, and fiber optic.
• Digital optical outputs use a digital signal to transmit audio data.

• Analog optical outputs use an analog signal to transmit audio data.

• Fiber optic outputs use a fiber optic cable to transmit audio data.

• Examples of devices with optical outputs include DVD players, soundbars, and gaming consoles.
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Q6. U r perfect or in perfect in thi job
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Q7. Yes I am hundred perfect
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Q8. About your experience
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Q9. Explain you r background
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Q10. You are expecting sarary
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Q11. Work from home or in office
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Q12. Are you like thi job
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Which life is best school or college

It will give the hole syallabus of aptitude and reasoning

Q1. About my self and family my goal
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Q2. About my village and technology
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Q3. About my future plan
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