DRAG DROP
You are configuring a multi-subnet IPv6 network for a regional office.
The corporate network administrator allocates the 2001:0db8:1234:0800: :/54 address space
for your use.
You need to identify network IDs of the first and last subnets that you will be able to create at
the office.
Which network IDs should you identify?
To answer, drag the appropriate network IDs to the correct subnets. Each network ID may
be used once, more than once, or not at all. You may need to drag the split bar between
panes or scroll to view content.
Answer: 
can anybody explain?
Network ID last should be 2001:odb8:1234:08ff/64.
0
0
Expanded Notation: 2001:0DB8:1234:0800:0000:0000:0000:0000
Condensed Notation: 2001:DB8:1234:800::
Prefix Length: 54
Network Prefix with Mask: 2001:0DB8:1234:0800:0000:0000:0000:0000
Prefix Address: FFFF:FFFF:FFFF:FC00:0000:0000:0000:0000
Host Range: 2001:0DB8:1234:0800:0000:0000:0000:0000 –
2001:0DB8:1234:0BFF:FFFF:FFFF:FFFF:FFFF
Total number of hosts: 18,889,465,931,478,580,000,000
% of total IPv6 Pool: < 0.0000001%
0
0
why /64 not /54 in the answers
0
0
As a general rule of thumb public addresses are given out in /56 slices and then those are divided into /64 subnets. They used a /54 in this case just to make the question more difficult.
0
0
But what is te correct answer in this one …?
Sorry, just feel a bit of a dumb on IPv6 🙂
0
0
First – 2001:0db8:1234:0800::/64
Last – 2001:0db8:1234:0bff::/64
0
0