220-901 question 203 discussion

answered

Which of the following is a public IP address?

  • A. 10.45.xxx.xxx
  • B. 169.254.xxx.xxx
  • C. 173.16.xxx.xxx
  • D. 192.168.xxx.xxx
Created 1 year, 1 month ago by skylarpurifoy

skylarpurifoy

Isn't 192.168 a public IP?

rtilliman1

No it is private and unrouteable to the internet as per iana.org

The_strength_within

192.168 is private... used for your router only, which then uses NAT to add the routers public ip address onto the frame before going out into the big bad internet.

dirtyzack18

Answer should be A. Class A (10.0.0.1) is a public IP

oflores97

10.0.0.0 - 10.225.225.255 are private addresses Class A 169.254.xxx.xxx are APIPA addresses for when DHCP fails 192.168.0.0 - 192.168.255.55 are private addresses Class C 172.16.0.0 - 172.16.31.255 are Class B private addresses

TitanHawk

No. 10. addresses are the private IP addresses inside the Class A range.

anonynoob1

No Zack. !0.x.x.x, class A/172.16.x.x class B/192.168.x.x are PRIVATE, meaning non-routable addresses.

Rocknation

Private IP Addresses Class A - 10.0.0.0 - 10.225.225.255 Class B - 172.16.0.0 - 172.16.31.255 Class C - 192.168.0.0 - 192.168.255.55 APIPA - 169.254.xxx.xxx Loopback - 127.0.0.1

Avelez87

Certain IP addresses are reserved for public use and others for private use. This is what makes private IP addresses unable to reach the public internet - because they aren't even able to communicate properly unless they exist behind a router. The following ranges are reserved by the Internet Assigned Numbers Authority (IANA) for use as private IP addresses: 10.0.0.0 to 10.255.255.255 172.16.0.0 to 172.31.255.255 192.168.0.0 to 192.168.255.255

Henok05

We need a moderator explanation on his answer . It is so confusing

pamjay

So this answer wrong? 173.16.xxx.xxx is a CLASS B Private address. The correct answer should be (A.) 10.45.xxx.xxx.