CCNA Switching Interview Questions

CCNA Switching Interview Questions

Are you preparing for a CCNA Switching interview? In this article, we have compiled a list of top CCNA Switching interview questions that will help you assess your knowledge and preparation for the job. It is crucial to have a solid understanding of switching concepts and protocols if you want to excel in the field of network engineering. So, without further ado, let’s dive into these CCNA Switching interview questions!

1. What is switching and why is it essential in networking?

Switching is the process of forwarding data packets between devices on a computer network. It allows devices to communicate efficiently by creating direct paths between sender and receiver. Switching improves network performance, enhances security, and enables traffic prioritization.

2. What are the different types of switching?

There are three main types of switching:

  • Circuit Switching: Establishes a dedicated communication path between sender and receiver for the entire duration of the conversation.
  • Message Switching: Breaks the message into packets and sends them independently, allowing different packets to take different routes.
  • Packet Switching: Breaks data into packets and sends them individually. Each packet can take a different route to reach its destination.

3. What is a VLAN and how does it work?

A VLAN (Virtual Local Area Network) is a logical LAN that allows network devices to communicate with each other as if they were on the same physical LAN. VLANs are created to improve network performance, security, and management. They work by grouping devices together based on factors such as department, location, or function, regardless of their physical location.

20. Can you explain the difference between cut-through and store-and-forward switching?

In cut-through switching, the switch forwards the data packet immediately after examining its destination MAC address. It is faster than store-and-forward switching but provides no error checking. On the other hand, store-and-forward switching checks the integrity of the packet by verifying its CRC (Cyclic Redundancy Check) value before forwarding it. It is slower but ensures error-free transmission.

Wrapping Up

Congratulations! You have successfully gone through the top CCNA Switching interview questions. By understanding and practicing these questions, you will be well-prepared for your interview. Remember to not only know the answers but also understand the concepts behind them. Good luck with your interview!

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