200-301 · Question #881
What are two reasons to deploy private addressing on a network? (Choose two.)
The correct answer is B. to reduce network maintenance costs C. to segment local IP addresses from the global routing table. Private addressing is deployed to conserve public IP addresses and isolate internal networks from direct internet access, which in turn helps reduce costs.
Question
Options
- Ato subnet addresses in an organized hierarchy
- Bto reduce network maintenance costs
- Cto segment local IP addresses from the global routing table
- Dto hide sensitive data from access users within an enterprise
- Eto route protected data securely via an Internet service provider
How the community answered
(33 responses)- A3% (1)
- B94% (31)
- D3% (1)
Why each option
Private addressing is deployed to conserve public IP addresses and isolate internal networks from direct internet access, which in turn helps reduce costs.
While private addresses can be subnetted, subnetting is a general network organization technique and not a reason specific to deploying private addressing over public addressing.
Using private IP addresses reduces the need to purchase public IP addresses for every internal device, thereby reducing operational costs and maintenance associated with managing public address space.
Private IP addresses are explicitly defined as non-routable on the public internet, which means they segment local IP addresses by preventing them from appearing in or being forwarded by the global routing table.
Private addressing does not inherently hide sensitive data from access users within an enterprise; data security relies on other mechanisms like encryption and access control.
Private addresses cannot be routed directly via an Internet Service Provider (ISP) for secure data transmission without Network Address Translation (NAT) or VPNs, and their deployment isn't a direct method for secure routing.
Concept tested: Private IP addressing benefits and purpose
Source: https://datatracker.ietf.org/doc/html/rfc1918
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