Cisco Certified Internetwork Expert (CCIE) Practice Test

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What does OVCDB allow access to?

Programmatic access to an Open vSwitch database
Configuration of a routing protocol
Access control for network devices
Management of DNS settings

The correct answer is: Programmatic access to an Open vSwitch database

The Open vSwitch Database (OVCDB) provides programmatic access to the configuration and operational state of an Open vSwitch instance. Open vSwitch is a multilayer virtual switch designed to enable network virtualization and allow interaction with various network components. OVCDB serves as the backend for storing configuration data and operational statistics, allowing users and applications to query and manage virtual networking resources effectively. This programmatic access is essential for automation and orchestration in software-defined networking (SDN) environments, where dynamic changes to network configurations and policies can be orchestrated using APIs. By freeing network administrators from manually configuring network elements, OVCDB facilitates management tasks and enhances overall network efficiency. The other choices pertain to different networking aspects. The configuration of a routing protocol focuses on how routers exchange information, access control deals with security measures for devices, and DNS management relates to domain name resolution. Each of these topics is essential for network management but does not specifically relate to the capabilities and functionalities offered by OVCDB.