Network Architectures, SDN & Automation Quiz (ENCOR/CCNP)

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1. Which type of API is used between Controller & Applications in SDN Model?

Southbound and Northbound API's in SDN

NORTHBOUND API’s

LAYERED API’s

CENTRALIZED API’s

SOUTHBOUND API’s

2. What is the function of the distribution layer of the Three-tier architecture?

Provides an aggregation point for access switches

Does not provides an aggregation point for access switches

Provides a connection point (access) for end-user devices

Aggregates distribution switches in very large campus LANs

3. Control Plane & Data plane are local in SDN Model:

FALSE

TRUE

4. What is Underlay in a Data Center design fabric?

The combination of overlays

The mechanisms to create VXLAN tunnels

All hosts in the network

The actual underlying devices and cables to provide IP connectivity to all nodes in the fabric

5. Where do Access Switches normally sit?

At the distribution Layer

At the edge of the WAN

At the core Layer

At the edge of the LAN

6. Which type of solution provides lower cost & shorter time to deploy benefits?

MPLS

Traditional Networks

SD-WAN

DWDM Optical networks

7. At which of the following layers of the Cisco three-tier architecture should port security be implemented?

Distribution layer

Access layer

Edge layer

Core layer

8. What is the advantage of Cisco’s Fabricpath as compared to Traditional Data Center?

Traditional-vs-cisco-fabricpath-data-center

STP blocks the extra redundant links & stops Layer2 loops

All connections are 1GE which gives high data rates

It groups devices more efficiently

STP is not needed due to which it has extra Bandwidth & high speeds

9. Which of the following should be a characteristic of the core layer in the Cisco three-layer hierarchical model?

Redundant components

PoE

QoS

Emphasis on high speed

10. Which type of Networking model is this?

Traditional Networking Model

MPLS Model

Old Networking Model

SDN Model

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