I am not sure if the context of your question is really on-topic here, but since the answer and its implications is very much relevant for travellers as well, I'll give it a try.
The explanation you have read is not entirely accurate. The problem is that accurate map material is neither allowed to be published, nor to leave the country. The Chinese National ...
There are many open source license type. Some allow to reuse in a commercial software, other don't. All will allow you to amend the code for your own need as long as you respect the other clauses of the licence.
Specifically for QGIS, the licence is the GNU General public Licence. It is a copyleft license, which means that derivative work can only be ...
If you're writing tools/code that only require a basic license to replicate functionality available with an advanced license then go nuts, people have been doing that for years. For example, the bounding containers toolbox which replicates some advanced tools and only requires a basic license is published on arcgis.com by an Esri forums MVP and moderator.
It seems you should be able to do all the things you are exploring to do between the two different licenses. It doesn't appear that using different licenses on the same computer would be violating any Esri licensing rules. Based on ArcGIS Desktop license types
A Single Use license authorizes one person to use ArcGIS Desktop, optionally including ArcGIS ...
The student license will not work unless you de-authorized it before formatting your PC. You can contact your UNI or license provider and explain what happened. They can increase the pc count for your license and you can activate it again in your PC.
Following the Google Attribution Guidelines :
All uses of Google Maps and Google Earth content must provide
attribution to both Google and our data providers. We do not approve
of any use of content without proper attribution, in any circumstance.
We require attribution when the content is shown. Requests for
exceptions will not be answered or ...
Some layers provided by the QuickMapServices plugin come with Attribution information in the layer properties. Unfortunately the Bing layers do not.
Here's what the Bing Maps API Terms of Service currently (on May 22, 2019) say about attribution:
1.2. Attribution Requirements. Prints must include the copyright notices from the Services and Content, ...
Yes, I agree with Vince in the comment above. Your lawyer is probably going to tell you that you have to give them the MXD. If you wanted to exclude your custom symbology you would have had to do that in signing that contract. Now it's too late. But perhaps if you ask nicely, the client may agree to drop those out.
Based on this forum post Multiple Portal instances it isn't. However, you can approach it differently to achieve the result of access for additional team members.
Rather than 3 Portals, why not use Groups and security measures? There's also the GEO-Jobe tool, Mapfolio, that lets you build different landing pages for different groups. Your sharing the ...
Assuming you're using a license borrowed from a license server, rather than a standalone license, is to rename "C:\ProgramData\ESRI\FLEXnet" to "C:\ProgramData\ESRI**~FLEXnet**", and then run ArcGIS Administrator. You will then be able to borrow a new license from the license server.
There is the Open-Elevation API (https://open-elevation.com/) that looks promising
for API examples
Live API sample:
For those continuing to search (I was and landed here). There is a free USGS service which is well buried. Link here. Worked for my use case of a couple of dozen points. HT to @barrycarter for the index link.