Difficulty: Easy

Average Score: 100%

Using the output below:
IPv4 Address: 172.25.1.39
Subnet Mask: 255.255.255.0
Router: 172:25.1.252
Name Server: 172.25.1.4

Which of the following is the default gateway?

Rationale

172.25.1.252 is the default gateway.

The default gateway is the device that routes traffic from a local network to external networks, typically represented by an IP address. In this scenario, the router's address, 172.25.1.252, serves as the default gateway, enabling devices within the 172.25.1.0/24 subnet to communicate outside their local network.

A (172.25.1.252) CORRECT

This address is identified as the router, which acts as the default gateway for devices within the subnet. It is responsible for directing traffic to and from external networks, making it essential for internet connectivity for devices in the local network.

B (172.25.1.39) YOUR ANSWER

This address is the IP address assigned to a specific device on the network, not the gateway. While it is part of the same subnet, it does not have routing capabilities to external networks, thus cannot serve as the default gateway.

C (172.25.1.4) YOUR ANSWER

This address is designated as a name server within the network, which provides domain name resolution services. Although it facilitates certain network functions, it does not perform the role of a default gateway, which is specifically tasked with routing traffic.

D (255.255.255.0) YOUR ANSWER

This is the subnet mask for the network, defining the range of available addresses in the subnet. It indicates which part of the IP address refers to the network and which part refers to the individual devices. However, it does not serve as an address for routing and therefore cannot be a default gateway.

Conclusion

The default gateway is a critical component in a network, facilitating communication between local devices and external networks. In this context, the router at 172.25.1.252 fulfills this role, while other choices represent either specific device addresses or network configuration parameters that do not serve routing functions. Understanding the distinction between these components is essential for effective network management and troubleshooting.

Which of the following is the default gateway?

172.25.1.252 is the default gateway.

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