Just to jump in late on this, but... The question doesn't ask how many of those class "C" are usable, which would be dependant on subnet O, but instead the question was how many you would be able to summarize. A /20 would in fact summarize 16, 14 of which are useable without subnet zero...
Thanks Larry -----Original Message----- From: Dain Deutschman [mailto:[EMAIL PROTECTED]] Sent: Wednesday, July 10, 2002 4:05 PM To: [EMAIL PROTECTED] Subject: Re: Class C summarization question [7:48367] Hey everyone, Thanks for all of your help. I have decided that 16 must be correct since it makes perfect sense and most of you back that up as well. I think the test question was just plain wrong. Anyway...I passed the CCNP Routing exam today so I'm pretty happy. : ) Groupstudy is a great learning resource. Thanks everyone. Dain. ""Dain Deutschman"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > I'm confused about a practice question for BSCN that I came across: > > Your routing tables are getting very large and you need to configure > route summarization. How many class C internet addresses can you > summarize with a > /20 CIDR block? > > Answer: 8 > > Would it not be 16? Where am I going wrong? > > -- > Dain Deutschman > CNA, MCP, CCNA > Data Communications Manager > New Star Sales and Service, Inc. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=48688&t=48367 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
