MAHLE ANAND Filter Systems Interview Questions, Process, and Tips

Joins combine data from multiple tables based on a common field, while associations define relationships between tables.

• Joins are used to combine data from multiple tables based on a common field

• Associations define relationships between tables

• Annotations like @OData.publish: true are used to make CDS views consumable in OData

Answering questions on instance and static methods in procedure, types of CDS views, and syntax of procedure definition.

• Instance methods are called on an instance of a class, while static methods are called on the class itself.

• CDS views include basic, composite, and consumption views.

• The syntax for defining a procedure in ABAP is: CREATE PROCEDURE (IN/OUT/INOUT ) LANGUAGE SQLSCRIPT AS BEGIN ... END;

Implicit and explicit enhancements are ways to modify standard SAP code without modifying it directly.

• Implicit enhancements are modifications made to standard SAP code without changing the original code. They are done using predefined hooks in the code.

• Explicit enhancements are modifications made to standard SAP code by directly modifying the original code. They are done using custom code.

• To identify implicit enhanceme...read more

Sorted BADI's are used to execute multiple implementations in a specific order.

• Sorted BADI's are used when multiple implementations need to be executed in a specific order.

• The order is determined by a sort number assigned to each implementation.

• The sort number can be set in the BADI definition or in the implementation.

• To use sorted BADI's, the BADI interface must have a method to retrieve the sort number.

• An example of ...read more

Inbound IDoc implementation involves configuring partner profiles and processing the IDoc data. Extension in IDoc allows adding custom fields to the standard IDoc structure.

• Create a partner profile for the sender system in transaction WE20

• Define the IDoc type and message type in transaction WE82

• Create a port and assign it to the partner profile in transaction WE21

• Configure the inbound processing in transaction BD51

• Exte...read more

Code review techniques include static analysis, peer review, and automated testing. Performance optimization techniques include caching, minimizing database calls, and optimizing code logic.

• Static analysis involves using tools to analyze code for potential issues before it is executed.

• Peer review involves having other developers review code for errors and potential improvements.

• Automated testing involves using tools to...read more

Interface is a blueprint of a class. Abstract class is a class that cannot be instantiated.

• Interface defines a set of methods that a class must implement.

• Abstract class can have both abstract and non-abstract methods.

• Interface can be implemented by multiple classes.

• Abstract class can be extended by a subclass.

• Example of interface: Comparable interface in Java.

• Example of abstract class: Animal class with abstract method

2-stroke engines have a power stroke every revolution, while 4-stroke engines have a power stroke every other revolution.

• 2-stroke engines have a simpler design and are lighter than 4-stroke engines.

• 2-stroke engines are less fuel-efficient and produce more emissions than 4-stroke engines.

• 4-stroke engines are more reliable and have a longer lifespan than 2-stroke engines.

• Examples of 2-stroke engines include chainsaws, di...read more

An engine is a machine that converts fuel into motion, providing power to vehicles, machines, and other equipment.

• Engines come in various types, such as internal combustion engines, steam engines, and electric motors.

• They are used in cars, airplanes, boats, trains, and many other vehicles.

• Engines are also used in power plants to generate electricity.

• The efficiency of an engine is measured by its fuel consumption and po...read more

There are various types of engines used in different applications.

• Internal combustion engines (gasoline, diesel)

• Jet engines (turbojet, turboprop, turbofan)

• Steam engines

• Electric motors

• Hybrid engines

• Rocket engines

Combustion cycle is the process of burning fuel to produce energy.

• Fuel is mixed with air and ignited

• Heat is produced which causes expansion of gases

• Expansion of gases creates pressure which moves pistons

• Pistons turn crankshaft which produces power

• Exhaust gases are released through the exhaust system