A : The key responsibilities are −
- System installation and configuration.
- Load balancing on servers.
- Performance management of different components.
- Managing interfaces and integration with servers.
- Managing servers and different services.
Q2 : Explain what is heterogenous system copy and homogenous system copy?
A : Homogenous system copy= Same OS + Same Database
Heterogeneous system copy= Different OS + Different database or the same database
Q3 : Explain SAP single stack system.
A : SAP system defines SAP singlet stack system. These can have two types of runtime engine like JAVA or SAP Netweaver as ABAP. An example – Single Stack System (JAA) is basically SAP Enterprise Portal System (Ep). On the other hand, Single Stack System (ABAP) is basically SAP ERP (ECC).
A : To maintain roles in the SAP system, we use transaction code — PFCG
Q5 : Define SGEN in SAP Basis?
A : SGEN is an ABAP compilation. The user can utilize the transaction SGEN in order to generate ABAP loads for a number of programs, classes, function groups, and so on, also for Business Server Page applications (BSP applications).
Q6 : Define supplementation language.
A : The SAP system gets installed with German and English as the default language. Supplementary language gets installed in order to get other languages.
A SAP instance is managed by CCMS and is used by users to login.
A SAP system can consist of one or more instances — you can set up an SAP system with a single instance with only one CCMS or you can configure a system with two or more separate instances in client/server environment.
We need to consider the following points to configure an SAP instance −
- You need to define separate directories for UNIX, AS/400, or Microsoft Windows NT server on which the instance is to be run.
- You can use a shared file system.
- For each instance, there are entries created in operating system configuration files (/etc/services, /etc/sapconfig…).
Q8 : Explain what is LUW (logical unit of work)?
A : A list of steps among t-code is known as logical LUW
Q9 : Name the SAP R/3 system Central interfaces?
A :
- Presentation
- Database and
- Operating system Interface
Static − This parameter doesn’t apply immediately and the system needs a Restart for this.
Dynamic − This parameter can be applied directly and the system does not need a Restart.
To set the value of parameters, use transaction code — RZ11s
A : Spool asks for are produced amid discourse or background processing and put in the spool database with data about the printer and print arrange. The genuine information is put in the Tem Se (Temporary Sequential articles).
A : Client refresh is overwriting or copying to existing client while copying the newly created client is called client copy.
A : Application Server takes the request from the user and if the request requires data then it connects to the database server and gives output.
A : A maximum of 312 profiles/roles we can assign to user.
A :
- Presentation layer
- Application layer
- Database layer
Q16 : What is the process for applying patches?
A : Process of applying patches are:
a) Download patches from the service .sap.com to Trans Directory
b) Using CAR command extract the patches in the Trans Directory
c) Using SAPM, import patches into SAP level and Apply
Q17 : What is SAP Basis?
A : SAP basis acts as an operating system or a platform for SAP applications to run. It supports the entire range of SAP applications.
Q18 : Name the phases of background that are processing in SAP?
A :
- Job Scheduling
- Job Processing
- Job Overview
Q19 : How can the SAP system be locked or unlocked?
A : SAP system can be locked or unlocked in two ways –
1. Manually or forcefully
2. Automatically
For single user and for multiple users, the transaction to be used is SU01 and SU10 respectively.
Q20 : What Are The Different Types Of Work Processes In R/3?
A : Dialog (D), Update (U), Enqueue (E), Background(B), and Spool(S).
Likewise, you have other parameters such as login/fails_to_session_end, login/fails_to_user_lock
The following are the password policy parameters −
- login/min_password_lng
- login/password_expiration_time
Q22 : Define SAP GUI.
A : SAP GUI is basically a client tool which helps in accessing the central server and also runs on various operating systems like UNIX, Microsoft Windows, and Mac etc. SAP applications like the SAP Business Intelligence System and SAP ECC are all managed by SAP GUI.
Q23 : Define RFC. How many types of RFC are there?
A : RFC is the abbreviation of Remote Function Call. This is a type of mechanism which helps in communicating as well as exchanging various types of information across the other SAP systems.
Mainly four types of RFC are present. These are namely,
1. Synchronous RFC (S RFC)
2. Transactional RFC (T RFC)
3. Asynchronous RFC (A RFC)
4. Queued RFC (Q RFC)
Q24 : Which table can be used for SAP user login data?
A : USR02 table is used for finding the user login details.
Q25 : What is the purpose of Table T000?
A : Table T000 contains a list of defined clients, which you can maintain with transaction SCC4.