Cisco Certified Internetwork Expert (CCIE) Practice Test

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Enhance your networking skills with the Cisco Certified Internetwork Expert Test. Tackle challenging questions and get detailed explanations. Prepare effectively to excel in your CCIE certification exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What are two characteristics of RPL, used in IoT environments? (Choose two)

It is an Exterior Gateway Protocol
It is an Interior Gateway Protocol
It is a hybrid protocol
It is a link-state protocol

The correct answer is: It is an Interior Gateway Protocol

RPL, or Routing Protocol for Low-power and Lossy Networks, is specifically designed for low-power, constrained environments that are typical in Internet of Things (IoT) deployments. One of the key characteristics of RPL is that it operates as an Interior Gateway Protocol (IGP). This means it is intended for routing within a single autonomous system, allowing it to efficiently manage the routing of data in a localized network scenario, which is essential in IoT applications where devices often communicate within the same network segment. Operating as an IGP allows RPL to handle the particular challenges posed by IoT environments, such as limited device capabilities and high rates of packet loss. This focus on efficient, intra-network routing enables RPL to maintain effective communication even as network topologies change dynamically due to the addition or removal of devices, which is a common occurrence in IoT ecosystems. The other characteristics offered in the choices do not apply to RPL. For instance, while it is not designed as an Exterior Gateway Protocol (EGP), which is geared towards routing between distinct autonomous systems, its specialization in local network management aligns more closely with an IGP framework.