Implementing Private IPv4 Addressing on Your Network - CCNA Exam 200-301

Benefits of Private IPv4 Addressing

Question

Which two goals reasons to implement private IPv4 addressing on your network? (Choose two.)

Answers

Explanations

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A. B. C. D. E.

BD.

Sure, I'd be happy to provide a detailed explanation of the two reasons to implement private IPv4 addressing on your network:

  1. Conserve IPv4 address: Private IPv4 addressing can help conserve public IPv4 addresses, which are becoming increasingly scarce. Private IP addresses are reserved for use within private networks, such as those in homes, businesses, and organizations, and are not publicly routable on the internet. This means that private IP addresses can be reused across multiple private networks without conflicting with each other or with public IP addresses. By using private IPv4 addresses, organizations can conserve their public IPv4 addresses for external communications and use them more efficiently.

  2. Reduce the risk of a network security breach: Private IPv4 addressing can also help reduce the risk of network security breaches. Private IP addresses are not directly accessible from the internet, which makes them more secure than public IP addresses. By using private IP addresses, organizations can hide their internal network topology and reduce their exposure to external threats, such as denial-of-service (DoS) attacks, port scans, and other forms of network reconnaissance. Private IP addresses can also be used in conjunction with Network Address Translation (NAT) to map multiple private IP addresses to a single public IP address, further enhancing network security.

The other options listed are not valid reasons to implement private IPv4 addressing on your network:

A. Comply with PCI regulations: While PCI regulations require that organizations protect their cardholder data, they do not specifically require the use of private IPv4 addressing.

C. Reduce the size of the forwarding table on network routers: This is not a direct benefit of using private IPv4 addressing, as private IP addresses are typically not included in forwarding tables on network routers.

E. Comply with local law: Local laws may require certain security measures, but they do not specifically require the use of private IPv4 addressing.