It's an optional feature. It also has Dual-band Wi-Fi.
Yes, the Nexus 7 4G does take a SIM card. If you are purchasing directly from Google, you can choose either an AT&T or T-Mobile SIM, which is provided.
Yes, the Nexus 7 comes in LTE versions.
There are various types of Nexus devices, but the Nexus 7 is part of that same family.
The Nexus 7 is an Android Tablet made by Google. It has a screen size of 7 inches.
If you buy an LTE version yes. If you buy wifi only then no.
Yes, it has Google Play.
No, you will have to download a movie to a Nexus 7 tablet on your own.
It is a tablet.
The Nexus 7, particularly the 2012 and 2013 models, does not have a SIM card slot for cellular connectivity in the Wi-Fi-only version. However, the LTE version of the Nexus 7 does support a SIM card for mobile internet access. If you have the LTE model, you can insert a SIM card to connect to mobile data; otherwise, you would need to rely on Wi-Fi for internet access.
Not really, unless you count the Google and Nexus branding as "ads".
Only if you buy an LTE version. Wifi only versions do not require a data plan.
Yes you can.