1.7 Describe Private IPv4 Addressing 200-301 Practice Questions (Page 1)

Questions 1–5

1. 1application · medium

   A network administrator is configuring a router that connects a private network to the internet. The router has a public IP address on its WAN interface and a private IP address on its LAN interface. Which statement correctly describes how the router handles traffic from the private network to the internet?

   • AThe router forwards the packets without any translation because private addresses are routable on the internet.
   • BThe router translates the private source address to the public IP address using NAT.
   • CThe router drops the packets because private addresses cannot be used with NAT.
   • DThe router changes the destination address to the public IP address.
   Reveal Solution Discussion Select an answer first
2. 2expert · hard

   A network engineer is designing a new network for a branch office. The branch will have 300 devices, and the engineer wants to use a private IPv4 block that is within the RFC 1918 ranges and provides enough addresses for the devices. The engineer also wants to avoid using the same block as the headquarters, which uses 10.0.0.0/8. Which block should the engineer select?

   • A172.32.0.0/23
   • B10.1.0.0/24
   • C192.168.1.0/24
   • D172.16.0.0/23
   Reveal Solution Discussion Select an answer first
4. 3foundation · easy

   Which statement about private IPv4 addresses is true?

   • AThey are more secure than public addresses because they are encrypted.
   • BThey can be used freely by any organization without coordination, but they cannot be routed on the public internet.
   • CThey are assigned by an ISP and are unique within the ISP's network.
   • DThey are always assigned automatically via DHCP.
   Reveal Solution Discussion Select an answer first
5. 4foundation · easy

   Which scenario is a typical use case for private IPv4 addressing?

   • AAssigning addresses to IoT devices that must be reachable from anywhere without NAT
   • BAssigning a globally unique address to a company's public website
   • CAddressing routers on the internet backbone
   • DProviding addresses for devices in a corporate LAN that do not need direct internet access
   Reveal Solution Discussion Select an answer first
6. 5application · medium

   A user at a branch office reports that they cannot reach a public website. The workstation has IP address 192.168.1.10 and the default gateway is correctly configured. The router's WAN interface has a public IP. What is the most likely reason the user cannot reach the website?

   • AThe workstation's IP address is not in a valid private range.
   • BThe public website is blocking private IP addresses.
   • CThe default gateway is on a different subnet.
   • DThe router is not performing NAT for the private address.
   Reveal Solution Discussion Select an answer first