Free CCNP Network Design and Security Questions and Answers

Question 1

How many layers are recommended in the hierarchical campus network design model?

Accepted Answer

3

Answer

Explanation:
The hierarchical campus network design model recommends having three layers. This design consists of the core layer, distribution layer, and access layer. The core layer is responsible for high-speed switching and routing, connecting different buildings or campuses. The distribution layer provides connectivity between the core and access layers, handling traffic filtering and policy enforcement. The access layer connects end devices, such as computers and printers, to the network. Having three layers in the hierarchical model helps to improve network performance, scalability, and manageability.

Question 2

End-user PCs should be connected into which of the following hierarchical layers?

Accepted Answer

Access layer

Answer

Explanation:
End-user PCs should be connected to the access layer of the hierarchical network design. The access layer is responsible for connecting end-user devices to the network. It provides local network access, authentication, and security services. This layer is also responsible for implementing policies and controlling user access to network resources. By connecting end-user PCs to the access layer, network administrators can efficiently manage and control network traffic, ensuring that end-users have the necessary access to resources while maintaining network security and performance.

Question 3

In which OSI layer should devices in the distribution layer typically operate?

Accepted Answer

Layer 3

Answer

Explanation:
Devices in the distribution layer typically operate at Layer 3 of the OSI model. Layer 3, also known as the network layer, is responsible for routing packets across different networks. The distribution layer connects different LANs or VLANs and performs functions like routing, filtering, and policy-based traffic control. It ensures that packets are delivered to the correct destination network by examining IP addresses and making routing decisions. Therefore, devices in the distribution layer primarily operate at Layer 3 to facilitate inter-network communication.

Question 4

A hierarchical network’s distribution layer aggregates which of the following?

Accepted Answer

Access-layer switches

Answer

Explanation:
A hierarchical network's distribution layer aggregates access-layer switches. The distribution layer is responsible for connecting the access layer to the core layer in a hierarchical network design. It acts as a central point for traffic distribution and provides services such as routing, filtering, and policy enforcement. By aggregating the access-layer switches, the distribution layer reduces the number of connections required to connect the access layer to the core layer, improving the scalability and manageability of the network.

Question 5

In the core layer of a hierarchical network, which of the following are aggregated?

Accepted Answer

Distribution switches

Answer

Explanation:
In the core layer of a hierarchical network, distribution switches are aggregated. The core layer is responsible for moving large amounts of data quickly and efficiently. Distribution switches are used to aggregate traffic from access-layer switches and route it to the appropriate destination. They help to optimize network performance by distributing traffic across multiple paths and providing redundancy. Therefore, distribution switches play a crucial role in aggregating and managing the flow of data in the core layer of a hierarchical network.

CCNP - Cisco Certified Network Professional Practice Test

CCNP - Cisco Certified Network Professional Practice Test

Free CCNP Network Design and Security Questions and Answers