Understanding Oracle Network Architecture

These flashcards are designed to review key concepts related to Oracle's network architecture, configurations, and important features essential for understanding Oracle Database connectivity.

Oracle Net Services

Connectivity-management software that is the backbone of Oracle's network architecture.

Single-Tier Architecture

The simplest network architecture, characterized by terminals connected directly to the Oracle server.

Two-Tier Architecture

A network architecture model where clients connect to servers over a network using a protocol, also known as Client/Server computing.

n-Tier Architecture

Architecture that divides application processing across three or more machines, including middleware.

Database Resident Connection Pooling (DRCP)

A configuration option that enhances middle-tier connection pools by sharing connections between threads.

Oracle Shared Server

A configuration that allows for a large number of concurrent connections without increasing physical resources by sharing them.

Oracle Listener

The main server-side component that manages incoming connection requests to Oracle databases.

listener.ora

Configuration file for defining the settings of the Oracle listener.

tnsnames.ora

File used to define net service names and connect descriptors for Oracle clients.

Dynamic Service Registration

Allows Oracle instances to automatically register themselves with a listener when they start.

Static Service Registration

Manual entry of service names in the listener.ora file to associate services with the listener.

Multiplexing

Connection Manager feature that groups multiple client connections into a single network connection.

Connection Manager

Middleware solution providing several scalability features, including multiplexing and network access control.

Advanced Security

Tools provided by Oracle to ensure secure transmissions of sensitive information.

Heterogeneous Services

Allows Oracle databases to communicate with non-Oracle databases.

External Procedures

Allows interfacing with external procedures written in third-generation languages, such as C.

Oracle Easy Connect

Connection method that eliminates the need for client-side configuration by allowing connections with a URL format.

Oracle Internet Directory

Centralized naming repository used for managing net service names in Oracle.

Location Transparency

Oracle Net feature that provides a layer of abstraction for managing database locations.

LDAP

Lightweight Directory Access Protocol, used to manage naming in Oracle environments.

Security Best Practices

Guidelines to protect database traffic, especially regarding the use of firewalls.

Multiprotocol Support

Oracle Net’s feature that supports a variety of standard protocols for connectivity.

Java Database Connectivity (JDBC)

API that allows Java applications to connect to an Oracle database using Oracle JDBC drivers.

Service Naming

The method of defining and managing service names in Oracle Net to facilitate client connections.

Request Queue

Queue in the SGA where incoming requests are posted by dispatchers in a Shared Server environment.

Response Queue

Queue in the SGA that stores responses to client requests processed by shared server processes.

Initialization Parameters

Parameters set in Oracle's initialization file that control various aspects of the Oracle server's configuration.