InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
List Advantages Of Using Sap Hana Database.? |
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Answer» • With the HANA TECHNOLOGY, you can create gen-next APPLICATIONS giving effective and EFFICIENT results in the digital economy. • With the HANA technology, you can create gen-next applications giving effective and efficient results in the digital economy. |
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| 2. |
What Are The Various Components Of Sap Hana Administration? |
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Answer» • SAP HANA Studio • SAP HANA Studio |
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| 3. |
Explain Slt |
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Answer» SLT expands to SAP Landscape Transformation referring to trigger –based REPLICATION. SLT replication permits data transfer from SOURCE to target, where the source can be SAP or non-SAP while the target system has to be SAP HANA with HANA database. Users can accomplish data replication from multiple sources. The three replication techniques supported by HANA are: • SLT SLT expands to SAP Landscape Transformation referring to trigger –based replication. SLT replication permits data transfer from source to target, where the source can be SAP or non-SAP while the target system has to be SAP HANA with HANA database. Users can accomplish data replication from multiple sources. The three replication techniques supported by HANA are: • SLT |
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| 4. |
List The Different Compression Techniques In Hana? |
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Answer» • Run-length ENCODING • Run-length encoding |
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| 5. |
Define Modeling Studio In Sap Hana Administration.? |
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Answer» Modeling STUDIO is an operational tool in SAP HANA based on Eclipse development and administration, which INCLUDES LIVE project creation. • The SAP HANA Studio further builds development objects and deploys them, to access and modify data models like HTML and JavaScript files. Modeling Studio is an operational tool in SAP HANA based on Eclipse development and administration, which includes live project creation. • The SAP HANA Studio further builds development objects and deploys them, to access and modify data models like HTML and JavaScript files. |
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| 6. |
Explain The Concept Of Persistence Layer.? |
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Answer» The persistence layer in SAP HANA handles all logging operations and transactions for secured backup and DATA RESTORING. This layer MANAGES data stored in both rows and columns and provides steady savepoints. Built on the concept of persistence layer of SAP’s relational database, it ensures successful data restores. Besides managing log data on the disk, HANA’s persistence layer allows read and write data operations via all storage INTERFACES. The persistence layer in SAP HANA handles all logging operations and transactions for secured backup and data restoring. This layer manages data stored in both rows and columns and provides steady savepoints. Built on the concept of persistence layer of SAP’s relational database, it ensures successful data restores. Besides managing log data on the disk, HANA’s persistence layer allows read and write data operations via all storage interfaces. |
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| 7. |
What Is The Main Sap Hana Database Component? |
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Answer» Index Server consists of ACTUAL DATA engines for data processing including input SQL and MDX statements and performs authentic TRANSACTIONS. Index Server consists of actual data engines for data processing including input SQL and MDX statements and performs authentic transactions. |
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| 8. |
What Table Type Is Preferred In Sap Hana Administration: Column-based Or Row-based? |
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Answer» Since analytic APPLICATIONS REQUIRE massive aggregations and agile data processing, column-based tables are preferred in SAP HANA as the data in column is stored consequently, one after the other enabling faster and easier readability and retrieval. Thus, columnar storage is preferred on most OLAP (SQL) queries. On the CONTRARY, row-based tables force users to read and access all the information in a row, even though you require data from few and/or specific columns. Since analytic applications require massive aggregations and agile data processing, column-based tables are preferred in SAP HANA as the data in column is stored consequently, one after the other enabling faster and easier readability and retrieval. Thus, columnar storage is preferred on most OLAP (SQL) queries. On the contrary, row-based tables force users to read and access all the information in a row, even though you require data from few and/or specific columns. |
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| 9. |
List Advantages Of Column-based Tables.? |
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Answer» • ALLOWS smoother PARALLEL processing of data as the data in columns is stored vertically. Thus, to access data from multiple columns, every operation can be allocated to a separate processor core. • Allows smoother parallel processing of data as the data in columns is stored vertically. Thus, to access data from multiple columns, every operation can be allocated to a separate processor core. |
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| 10. |
List The Merits And Demerits Of Using Row-based Tables.? |
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Answer»
• No data approach can be faster than row-based if you want to analyze, process and retrieve one record at one time. Merits: • No data approach can be faster than row-based if you want to analyze, process and retrieve one record at one time. |
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| 11. |
When To Change The Number Of Data Transfer Jobs? |
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Answer» The NUMBER of data transfer JOBS change when the initial loading speed or LATENCY replication TIME is not up to the mark. At the end of the initial load, the number of initial load jobs may be reduced. The number of data transfer jobs change when the initial loading speed or latency replication time is not up to the mark. At the end of the initial load, the number of initial load jobs may be reduced. |
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| 12. |
Is The Table Size In Source System And Sap Hana System Same? |
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Answer» No No |
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| 13. |
How Users Can Avoid Un-necessary Storage Of Logging Information? |
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Answer» PAUSE the REPLICATION PROCESS and TERMINATE the schema-related JOBS. Pause the replication process and terminate the schema-related jobs. |
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| 14. |
Define Master-controller Job.? |
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Answer» A Master-controller job is responsible to build database LOGGING table in the source system. It further CREATES synonyms and new ENTRIES in SLT server ADMIN when the table loads / replicates. A Master-controller job is responsible to build database logging table in the source system. It further creates synonyms and new entries in SLT server admin when the table loads / replicates. |
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| 15. |
How Is Sql Statement Processed In Sap Hana? |
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Answer» Each SQL statement in SAP HANA is carried out in the FORM of a transaction. EVERY time, a NEW session is allocated to a new transaction. Each SQL statement in SAP HANA is carried out in the form of a transaction. Every time, a new session is allocated to a new transaction. |
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| 16. |
Explain The Role Of Transaction Manager And Session? |
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Answer» SAP HANA transaction MANAGER synchronizes database transactions keeping the record of closed and open transactions. When a transaction is committed or ROLLED BACK, the manager INFORMS all the active stores and engines about the action so that they can perform required actions in time. SAP HANA transaction manager synchronizes database transactions keeping the record of closed and open transactions. When a transaction is committed or rolled back, the manager informs all the active stores and engines about the action so that they can perform required actions in time. |
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| 17. |
How To Define Transformation Rules In Hana? |
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Answer» Using advanced REPLICATION SETTINGS, TRANSFORMATION rules are SPECIFIED to transfer data from source tables during replication process. For instance, setting rules to covert FIELDS, fill vacant fields and skip records. These rules are structured using advanced replication settings (transaction IUUC_REPL_CONT) Using advanced replication settings, transformation rules are specified to transfer data from source tables during replication process. For instance, setting rules to covert fields, fill vacant fields and skip records. These rules are structured using advanced replication settings (transaction IUUC_REPL_CONT) |
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| 18. |
What Is Logging Table? |
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Answer» Logging table records all replicated changes in the table, which can be further replicated to the TARGET SYSTEM. Logging table records all replicated changes in the table, which can be further replicated to the target system. |
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| 19. |
What Are Configuration And Monitoring Dashboard? |
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Answer» They are SLT Replication APPLICATION SERVERS to provide configuration INFORMATION for DATA replication. This replication status can also be MONITORED. They are SLT Replication Application Servers to provide configuration information for data replication. This replication status can also be monitored. |
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| 20. |
Define Different Types Of Information Views.? |
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Answer» There are primarily three TYPES of information views in SAP HANA, which are all non-materialized. • Attribute view There are primarily three types of information views in SAP HANA, which are all non-materialized. • Attribute view |
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| 21. |
What Is Stall? |
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Answer» The waiting PROCESS for DATA to load from the MAIN MEMORY to the CPU cache is called STALL. The waiting process for data to load from the main memory to the CPU cache is called Stall. |
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| 22. |
Define Slt Configuration? |
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Answer» Configuration is the meaningful information to establish a connection between SOURCE, SLT SYSTEM and SAP HANA architecture as STATED in the SLT system. Programmers are allowed to illustrate a new Configuration in Configuration and MONITORING DASHBOARD. Configuration is the meaningful information to establish a connection between source, SLT system and SAP HANA architecture as stated in the SLT system. Programmers are allowed to illustrate a new Configuration in Configuration and Monitoring Dashboard. |
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| 23. |
How To Perform Backup And Recovery Operations? |
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Answer» During a REGULAR OPERATION, data is by DEFAULT stored to the disk at savepoints in SAPHANA. As soon a there is any update and transaction, logs BECOME active and get saved from the disk memory. In case of power failure, the DATABASE restarts like any other DB returning to the last savepoint log state. SAP HANA requires backup to protect against disk failure and reset DB to the previous state. The backups simultaneously as the users keep performing their tasks. During a regular operation, data is by default stored to the disk at savepoints in SAPHANA. As soon a there is any update and transaction, logs become active and get saved from the disk memory. In case of power failure, the database restarts like any other DB returning to the last savepoint log state. SAP HANA requires backup to protect against disk failure and reset DB to the previous state. The backups simultaneously as the users keep performing their tasks. |
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| 24. |
Name Various Components Of Sap Hana? |
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Answer» SAP HANA DB SAP HANA DB |
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| 25. |
Explain How Sql Statement Is Processed? |
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Answer» In the HANA database, each SQL statement is IMPLEMENTED in the reference of the transaction. NEW session is allotted to a new transaction. In the HANA database, each SQL statement is implemented in the reference of the transaction. New session is allotted to a new transaction. |
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| 26. |
Explain How You Can Avoid Un-necessary Logging Information From Being Stored? |
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Answer» You can avoid un-necessary logging INFORMATION from being stored by PAUSING the replication by STOPPING the schema-related JOBS. You can avoid un-necessary logging information from being stored by pausing the replication by stopping the schema-related jobs. |
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| 27. |
Mention What Is The Role Of The Transaction Manager And Session? |
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Answer» The TRANSACTION manager co-ordinates database transactions and keeps a record of running and CLOSED transactions. When transaction is rolled back or committed, the transaction manager NOTIFIES the involved storage engines about the event so they can RUN necessary actions. The transaction manager co-ordinates database transactions and keeps a record of running and closed transactions. When transaction is rolled back or committed, the transaction manager notifies the involved storage engines about the event so they can run necessary actions. |
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| 28. |
Explain What Happens If The Replication Is Suspended For A Longer Period Of Time Or System Outage Of Slt Or Hana System? |
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Answer» If the REPLICATION is SUSPENDED for a longer PERIOD of time, the size of the logging TABLES increases. If the replication is suspended for a longer period of time, the size of the logging tables increases. |
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| 29. |
Mention What Is The Role Of Master Controller Job In Sap Hana? |
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Answer» The job is arranged on demand and is responsible for
The job is arranged on demand and is responsible for |
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| 30. |
Explain How You Can Avoid Un-necessary Information From Being Stored? |
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Answer» To AVOID un-necessary INFORMATION from being STORED, you have to pause the replication by STOPPING the schema-related JOBS To avoid un-necessary information from being stored, you have to pause the replication by stopping the schema-related jobs |
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| 31. |
Mention What Is The Advantage Of Slt Replication? |
Answer»
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| 32. |
Explain What Is Transformation Rules? |
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Answer» Transformation rule is the rule SPECIFIED in the ADVANCED REPLICATION setting transaction for the source table such that DATA is transformed during the replication process. Transformation rule is the rule specified in the advanced replication setting transaction for the source table such that data is transformed during the replication process. |
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| 33. |
Mention What Is Latency? |
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Answer» LATENCY is referred to the LENGTH of TIME to replicate data from the SOURCE system to the target system. Latency is referred to the length of time to replicate data from the source system to the target system. |
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| 34. |
Mention What Are The Different Compression Techniques? |
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Answer» There are THREE DIFFERENT COMPRESSION techniques There are three different compression techniques |
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| 35. |
Mention What Is Modeling Studio? |
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Answer» Modeling STUDIO in HANA performs multiple task like
Modeling studio in HANA performs multiple task like |
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| 36. |
Mention What Is The Role Of The Persistence Layer In Sap Hana? |
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Answer» SAP HANA has an in-memory computing engine and ACCESS the data straightaway WITHOUT any backup. To avoid the RISK of losing data in CASE of hardware failure or power cutoff, PERSISTENCE layer comes as a savior and stores all the data in the hard drive which is not volatile. SAP HANA has an in-memory computing engine and access the data straightaway without any backup. To avoid the risk of losing data in case of hardware failure or power cutoff, persistence layer comes as a savior and stores all the data in the hard drive which is not volatile. |
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| 37. |
Mention The Two Types Of Relational Data Stored In Hana? |
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Answer» The two TYPES of relational DATA STORED in HANA includes The two types of relational data stored in HANA includes |
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| 38. |
Mention What Is Sap Hana? |
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Answer» SAP HANA stands for High Performance Analytical Appliance- in-memory computing engine. HANA is linked to ERP systems; FRONTEND modeling STUDIO can be used for replication SERVER management and load control. SAP HANA stands for High Performance Analytical Appliance- in-memory computing engine. HANA is linked to ERP systems; Frontend modeling studio can be used for replication server management and load control. |
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