Technical Operations Flashcards
What are some of the main tools used for admin, monitoring and RCA of HANA
- SAP HANA Cockpit
- DBA Cockpit for HANA
- HDBSQL - command line
- SAP Solution Manager
Which of the following customer specific SAP HANA configuration files (*. ini files) exist in Linux in the custom config directory
Files with parameter values that deviate from SAP delivered default values
Where can you monitor more than one SAP HANA system in the SAP HANA studio
System Monitor
Which of the below user can access HANA system via HTTP/HTTPS applications and doesn’t have access to create objects in schema in HANA database
Restricted user (Restricted users are those users who access HANA system with some applications and they don’t have SQL privileges’ on HANA system. When these users are created they don’t have any access initially. If we compare restricted users with Standard users - Restricted users can’t create objects in HANA database or their own Schemas. They don’t have access to view any data in database as they don’t have generic Public role added to profile like standard users. They can connect to HANA database only using HTTP/HTTPs)
You log into the HANA studio and expand the catalog folder. What can you see within this folder
- Tables
- Views.
- Stored procedures
A part of a service, you log onto a customer’s system to view information related to a table that causes CPU spikes when queried. You want to check if there are any indexes associated with the table and the actual table data. How do you check both these things?
In the table definition tab & the table content tab
When we view the table definition for a distributed table in a scale out system and select the Runtime Information tab in the HANA studio, which of the following can we see information about
The delta size for column store tables
The number of partitions
The partition specification
The delta of a rowstore table with automerge disabled grows considerably after data loading. You manually perform a delta merge and them query this table. After querying you no longer need this table in RAM and manually unload it. Which is true of the these actions
A delta merge can only be performed on column store tables
Row store tables must always reside in RAM
You are the DBA of a scale out HANA DB that is receiving frequent low priority alerts relating to the number of records for some column store tables. You don’t see any problem with the number of records in these tables and there are no performance issues with reports querying them. What is the logical next step
You increase the thresholds for the occurrence of this type of alert to more meaningful value
You log onto a customers HANA database and go to the performance tab and select expensive statements trace sub-tab. You notice there is no information available. What might be the reason
The expensive statements trace has not been configured.
You experience a hanging situation on you HANA DB and SAP support ask you to generate 3 sets of runtime environment dumps at 5 minutes intervals the next time the issue occurs. Upon reoccurrence of the issue, how do you generate these requested runtime dumps
Configure the collection of diagnosis information in the diagnosis files tab of the HANA studio
To access HANA cockpit there are some prerequisites that need to be met. Which of the following are required to allow access
- You can log in as the SYSTEM user if your HANA database is SPS10 or later
- The DB user needs to be assigned one of the “sap.hana.admin.roles::Monitoring” or “sap.hana.admin.roles::Administrator” roles
- The web browser you use to access the HANA cockpit must support SAPUI5
During an audit your HANA studio and r/3 connections are not working and you need to query the AUDIT_LOG view. You decide to query this view through the host. Which of the following steps would allow you to perform this action
- While logged onto the host you additionally log into HDBSQL and query the view
- You log into HDBSQL while using a user key to hide your password and query the view
- You log into HDBSQL using your usual HANA DB user and query the view
You want to log into the HDBSQL command line tool but do not wish to type your password into the console as it will be visible. What can you use to securely encrypt and store your password without having to explicitly enter it on screen
HDBUSERSTORE
Which of the following tools can be used for User Administrations
SAP HANA Cockpit or hdbsql