Infosys CCNA Interview Questions

Infosys CCNA Interview Questions

Are you preparing for an interview at Infosys for a CCNA (Cisco Certified Network Associate) position? It’s crucial to be well-prepared to stand out from other candidates. In this article, we will discuss some common CCNA interview questions that you may come across during your interview process at Infosys.

1. Describe the OSI model and its layers.

The OSI (Open Systems Interconnection) model is a conceptual framework that standardizes the functions of a communication system. It consists of seven layers:

  • Physical Layer
  • Data Link Layer
  • Network Layer
  • Transport Layer
  • Session Layer
  • Presentation Layer
  • Application Layer

Here, we dive into each layer in detail, explaining their functions and protocols associated with them.

2. What is the difference between a router and a switch?

Routers and switches are both crucial network devices, but they serve different purposes. A router connects multiple networks together and routes data packets between them, making decisions based on IP addresses. On the other hand, a switch connects network devices within a local area network (LAN) and forwards data packets based on MAC addresses. Detailed explanations of their functions and differences are provided in this section.

3. Explain the different types of VLAN Trunking Protocol (VTP) modes.

VTP is a Cisco proprietary protocol that manages the addition, deletion, and renaming of VLANs within a switched network. There are three VTP modes: server, client, and transparent. We explore each mode in detail, discussing their features and best practices for their implementation.

4. Discuss the purpose and benefits of implementing network segmentation.

Network segmentation involves dividing a network into multiple smaller networks or segments to improve security, performance, and manageability. This section details the reasons why network segmentation is crucial, its various benefits, and practical examples of how to implement it effectively.

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