a).What is the Oracle Database 11g Express edition default folder during installation and can this be changed? During the installation of Oracle Database 11g Express Edition (Oracle XE), the default folder location for the database files is determined by the operating system. On Windows, the default folder is typically: C:\oraclexe\app\oracle\oradata\XE b). The default passwords for the users SYS and SYSTEM in Oracle Database 11g Express Edition (Oracle XE) are as follows: SYS user: Username: SYS Password: Change_On_Install SYSTEM user: Username: SYSTEM Password: manager c.) The required disk space for Oracle Database 11g Express Edition (Oracle XE) can vary depending on the operating system and the specific components you choose to install. However, the general guideline for disk space requirements is as follows: Minimum disk space requirement: 1.5 GB d).What is the meaning of the terms ‘Oracle Home’ and ‘Oracle Base’? What are default directories in express edition installation? Oracle Home: The Oracle Home directory is the top-level directory where the Oracle software is installed. It contains the binaries, libraries, executables, and configuration files necessary to run Oracle Database. The Oracle Home directory is often referenced by environment variables and is specific to a particular Oracle software version or release. Oracle Base: The Oracle Base directory is a higher-level directory that serves as a common parent directory for multiple Oracle software installations. It provides a centralized location for storing Oraclerelated files, such as Oracle configuration files, diagnostic logs, and administrative scripts. Oracle Base can be considered as a base directory for managing Oracle software installations. In the case of Oracle Database 11g Express Edition (Oracle XE), the default directories during installation are as follows: Oracle Home: The Oracle Home directory is typically located at: Windows: C:\oraclexe\app\oracle\product\11.2.0\server Linux: /u01/app/oracle/product/11.2.0/xe Oracle Base: The Oracle Base directory is typically located at: Windows: C:\oraclexe\app\oracle Linux: /u01/app/oracle e). List names and port numbers of three (3) important services during express edition installation? During the installation of Oracle Database 11g Express Edition (Oracle XE), several important services are set up to facilitate the functioning of the database. Here are three important services along with their default port numbers: Oracle Database Listener: Service Name: LISTENER Port Number: 1521 The Oracle Database Listener is responsible for establishing and maintaining network connections with client applications. It listens on port 1521 by default for incoming connections. Oracle Enterprise Manager Database Express: Service Name: EM Express Port Number: 5500 Oracle Enterprise Manager Database Express is a web-based management interface for administering the Oracle Database. It provides a graphical user interface for database administration tasks. The EM Express service is accessed through a web browser and typically runs on port 5500. Oracle Application Express (APEX): Service Name: APEX Port Number: 8080 Oracle Application Express (APEX) is a low-code development platform for building web applications on top of the Oracle Database. It allows developers to create and deploy web-based applications quickly and easily. The APEX service is accessed through a web browser and typically runs on port 8080. d). Provide the four (4) limitations subjected to the use of the oracle 11g database express edition Maximum Database Size: Oracle XE has a maximum database size limit of 11 GB of user data. This limit includes both user data and system data. If the size of the database exceeds this limit, you will need to upgrade to a higher edition of Oracle Database. Limited CPU and Memory Resources: Oracle XE is designed to run on systems with limited CPU and memory resources. It can use up to 1 GB of RAM and one CPU socket, with a maximum of two CPU threads. This limitation is in place to ensure that Oracle XE is suitable for small-scale applications and development environments. Restricted to Single Instance: Oracle XE only supports a single database instance on a given server. It does not have the capability to run Oracle Real Application Clusters (RAC) or create multiple instances on the same machine. If you require advanced features like RAC, you will need to upgrade to a higher edition. Limited Availability of Oracle Database Options: Oracle XE does not include certain advanced options and features that are available in the Enterprise Edition. These options may include features such as Oracle Data Guard, Oracle Spatial, Oracle Advanced Security, and others. If your application requires these options, you will need to consider upgrading to a higher edition. e). List the database name, ID, License and version Database Versions: Oracle Oracle Database 11g Oracle Database 12c Oracle Database 18c Oracle Database 19c Oracle Database 21c (latest version as of my knowledge cutoff in September 2021) Oracle Database Licenses: Oracle Enterprise Edition: This is the full-featured version of Oracle Database, offering comprehensive functionality and advanced features. It requires a paid license. Oracle Standard Edition: This is a more limited version of Oracle Database, providing a subset of the Enterprise Edition features. It also requires a paid license but at a lower cost compared to the Enterprise Edition. Oracle Express Edition (XE): This is a free, limited version of Oracle Database, designed for small-scale applications, development, and educational purposes. It has certain limitations, as mentioned earlier. g) List any ten (10) Privileges that can be assigned to a user in a database (5 Marks) SELECT: Allows the user to retrieve data from tables or views. INSERT: Permits the user to insert new rows into tables. UPDATE: Enables the user to modify existing data in tables. DELETE: Allows the user to remove rows from tables. CREATE: Permits the user to create new database objects such as tables, views, or procedures. ALTER: Enables the user to modify the structure of existing database objects. DROP: Allows the user to remove database objects. GRANT: Permits the user to grant privileges to other users or roles. EXECUTE: Enables the user to execute stored procedures or functions. REFERENCES: Allows the user to create foreign key constraints and referential integrity.