CCNA Test Questions 2015

CCNA Test Questions 2015

Welcome to our blog post on CCNA test questions from the year 2015. Whether you are preparing for your CCNA certification or seeking to expand your knowledge in the field of networking, these questions will test your understanding of the fundamental concepts covered in the CCNA exam five years ago.

Question 1

What is the purpose of a MAC address?

Answer: A MAC address, also known as a Media Access Control address, is a unique identifier assigned to network interfaces for communications on the physical network segment. It is used to ensure that data packets are delivered to the correct destination.

Question 2

What is the difference between TCP and UDP?

Answer: TCP (Transmission Control Protocol) provides reliable, connection-oriented communication between devices. It guarantees the delivery of data packets in the correct order without loss or duplication. UDP (User Datagram Protocol), on the other hand, is connectionless and does not provide reliable communication. It is often used for applications where speed and low overhead are more important than reliability, such as streaming media.

Question 3

What is the purpose of a subnet mask?

Answer: A subnet mask is used to divide an IP network into subnetworks or subnets. It determines which part of an IP address represents the network portion and which part represents the host portion. The subnet mask is used in conjunction with the IP address to determine if a destination address is on the local network or needs to be routed to a different network.

Question 10

What is the purpose of the Spanning Tree Protocol (STP)?

Answer: The Spanning Tree Protocol is used to prevent loops in Ethernet networks. It allows bridges and switches to exchange information and dynamically establish a loop-free topology. By creating a tree-like structure, STP ensures that there is only a single active path between any two network nodes, preventing broadcast storms and improving network efficiency.


These CCNA test questions from 2015 cover various topics essential to understanding networking principles. Remember to keep practicing and researching to enhance your knowledge in this ever-evolving field. Best of luck with your CCNA certification!

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