Interview Questions.

Question 1. What Is Oracle Internet Directory(oid)?

Answer :

An on line listing is a specialised database that stores and retrieves collections of statistics approximately gadgets. The facts can represent any sources that require management.

As an example:

Employee names, titles, and safety credentials
Information about partners
Information about shared assets such as convention rooms and printers.
The facts within the directory is available to special clients, along with single sign-on solutions, electronic mail customers, and database programs. Oracle Internet Directory is an LDAP listing that uses an Oracle Database for garage. Clients talk with a listing server by the Lightweight Directory Access Protocol (LDAP).

Question 2. Need Of Oracle Internet Directory ?

Answer :

Use of Oracle Internet Directory (Oracle’s LDAP) is a great deal bigger and may’t be explained on this submit but right here is few bits which you is sufficient for time being (to get you started out on OID).

OID is repository for company users, companies statistics.

Information approximately numerous packages (Portal, BI, E-Business Suite, Collaboration Suite) registered to OID (You can check in E-Business Suite or Database in OID).

Password coverage for Single Sign-On Partner Applications

Linux Interview Questions
Question 3. How To Start & Stop Oid?

Answer :

To start OID:

$ORACLE_HOME/opmn/bin/opmnctlstartall

To stop:

$ORACLE_HOME/opmn/bin/opmnctlstopall

Question four. What Can I Do If My Application Doesn’t Speak To Ldap ?

Answer :

Gateway that translate one directory get right of entry to protocol into any other.

Linux Tutorial
Question 5. How Can I Join Information Contained In Different Directories?

Answer :

Distributed, Multivendor directories glued collectively by way of referrals and references.

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Question 6. What Are Different Daemon/server In Oid ?

Answer :

There are 3 servers/daemon in OID:

OIDLDAPD – This is the main server/daemon watching for ldap request (ldapsearch, ldapadd, ldapmodify, ldapdelete..). When any utility need to do any ldap operation(add, modify, delete, seek..) on OID item (person, institution, software..), that request is fulfilled with the aid of this server/daemon.

ODISRV – additionally known as as Oracle Directory Integration Server, that is used for integration of Various Application (Portal, BI, E-Business Suite/Apps) with OID for person/group records. If any consumer/institution is introduced/deleted in Portal/BI synchronization of that consumer to OID is accomplished via this Daemon (Vice Versa). If you have got Integrated Apps(11i/R12) with OID/SSO then users is provisioned/de-provisioned using this daemon of OID.

OIDREPLD – Also referred to as as OID Replication Daemon is used if you have replicated OID. By default this daemon is disabled.

Question 7. Is There Graphical Editors For Ldap ?

Answer :

Yes, Following are a few GUI based totally gear for LDAP

GQ
Java LDAP Browser/Editor
Softerra LDAP Browser
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Question 8. How To Lookup Oid Entities?

Answer :

ldapsearch -h my-host-name -p 389 -D “cn=orcladmin” -w mypassword -b “cn=TESTENTRY,cn=OracleContext,dc=mycompany,dc=com” -s base “objectclass=*” orclnetdescstring

Question 9. How To Modify Oid Entities?

Answer :

$ ldapmodify -h my-host-name -p 389 -D cn=orcladmin -w mypassword -c -v -f <filename>.Ldif

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Question 10. How To Start/prevent Oid ?

Answer :

OID Data along with status of OID Servers (OIDLAPD, ODISRV OIDREPLD) is saved in Oracle Database so for you to start OID first start Database and Database Listener. Then

To Start OID – opmnctl startproc ias-thing=OID

To Stop OID – opmnctl stopproc ias-element=OID

OPMNCTL will first start OIDMON (OID Monitoring Process) and then educate OIDCTL (OID Control) to start OIDLDAPD and ODISRV daemons.

Question 11. What Is Ldap ?

Answer :

LDAP stands for Lightweight Directory Access Protocol. In undeniable and simple phrases, its a database wherein it has all the info of all of businesses, people, and different resources which includes files and gadgets in a network, whether or not at the Internet or on company intranetand whether or no longer  the domain call, IP address, or geographic whereabouts. An LDAP directory can be dispensed amongst many servers on a community, then replicated and synchronized often. An LDAP server is likewise called a Directory System Agent (DSA). Itsa not a relational database. Outlook and other electronic mail programs makes use of LDAP to look for a recipient in an organization.

Advanced Linux Interview Questions
Question 12. How To Delete Oid ?

Answer :

$ ldapdelete -h my-host-name -p 389 -D “cn=orcladmin” -w mypassword “cn=TESTENTRY,cn=OracleContext,dc=mycompany,dc=com”

Linux Interview Questions
Question thirteen. Where To Find Log Files Related To Oid?

Answer :

Logs related to OIDMON, OIDCTL, OIDLDAPD need to be in $ORACLE_HOME/ldap/log listing , ODISRV related logs should be in $ORACLE_HOME/ldap/ODI/log.

Question 14. What Is The Relationship Between Ldap And Jndi?

Answer :

JNDI has instructions supplied by means of SUN with a purpose to help ur appln interact with and LDAP server. JNDI appln paintings similarly to JDBC appln once and be unfastened to use ‘drivers’ from unique carriers. SUN offers the “driving force” in an effort to assist interact with the LDAP server. Sun also presents “drivers” for different naming offerings (like CORBA).

Question 15. How To Add Oid Entities?

Answer :

$ ldapadd -h my-host-call -p 389 -D “cn=orcladmin” -w mypassword -f names.Ldif

Oracle IDM Interview Questions
Question sixteen. Why Ldap Is Called Light Weight?

Answer :

LDAP (Lightweight Directory Access Protocol) is a protocol for communications among LDAP servers and LDAP clients.
LDAP servers save “directories” which might be get entry to by using LDAP customers.
LDAP is known as light-weight because it is a smaller and easier protocol which was derived from the X.500 DAP
(Directory Access Protocol) described in the OSI network protocol stack.
Question 17. What Is Slapd?

Answer :

SLAPD stands for Stand-Alone LDAP.Clients connect to the server over the LDAP protocol, generally using a community-based totally connection (even though SLAPD affords a UNIX socket listener).

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Question 18. How To Create First Internet Directory?

Answer :

Creating the First Oracle Internet Directory Instancez:

When you install Oracle Internet Directory on a bunch pc, Oracle Identity Management 11g Installer creates an Oracle Fusion Middleware gadget component of Type=OID in a brand new or present Oracle instance (ASINST). The Oracle Internet Directory aspect incorporates an OIDMON manner and an Oracle Internet Directory example (inst=1). The Oracle Internet Directory instance consists of a dispatcher manner and one or more OIDLDAPD strategies. The aspect name for the primary Oracle Internet Directory component is normally oid1 and the Oracle instance call is selected during the set up, normally asinst_1.

Oracle Identity Management 11g Installer creates the following instance-particular configuration access for this component in the course of installation:

cn=oid1,cn=oidldapd,cn=sub config subentry

In addition, Oracle Identity Management 11g Installer creates a few report system directories under the Oracle instance listing. Some of the pathnames it creates are are particular to the element call.

For example, the pathnames below your Oracle example on UNIX or Linux encompass:

ORACLE_INSTANCE/config/OID/oid1

ORACLE_INSTANCE/diagnostics/logs/OID/oid1

If you selected Create New Domain or Extend Existing Domain at some stage in set up, the Oracle Internet Directory thing is registered with a WebLogic domain. If you selected Configure Without a Domain at some stage in installation, the Oracle Internet Directory thing isn't registered with a site. You can sign up it later from the command line. Registering with a domain in this situation is optionally available.

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Question 19. How To Registering An Oracle Instance Or Component With The Weblogic Server?

Answer :

If you want to manage an Oracle Internet Directory aspect with Oracle Enterprise Manager Fusion Middleware Control, you should sign up the factor and the Oracle instance that includes it with a WebLogic area. You can sign up an Oracle instance with a WebLogic domain throughout installation or Oracle example advent, however you aren't required to do so. If an Oracle instance was no longer formerly registered with a WebLogic domain, you can register it with the aid of the use of opmnctlregisterinstance.

Question 20. How To Creating An Oracle Internet Directory Component By Using Opmnctl?

Answer :

WE create an Oracle Internet Directory system thing in an Oracle instance through the usage of opmnctlcreatecomponent. This command routinely registers the element with a WebLogic domain at the time you create the component, as long as the instance is in a registered country.

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