Well German Shepherds are most commonly entered but any dog can participate, even mutts!
No
According to Wikipedia's website, a Schutzhund is a type of protection dog. For example, the German Shepherd is type of protection dog that is used for official police work.
It's to bring a dog back to what it was originally bred for. Tracking, Obedience, and Protection work are the three events the dog has to be tested on. Idealy a dog should have a schutzhund 1 to be bred and a breed survey. This sport originated in Germany and is most commonly played by German Shepherd Dogs, but all breeds are allowed to enter. There are certain restrictions such as height and length of the dog since most dogs are too big from being bred wrong. You need the right temperment and structure in a the mother dog to get good puppies. And the same goes for the male dog you are breeding her with. There are many shows all over the US and the world you can go to watch. Conformation and Trial are just two types. Thank you for reading up on schutzhund, and I hope you get into the sport as much as I am!
Schutzhund is training your dog for protection by using certain commands. It is also a competitive sport where you and your dog earn points by how well you give commands and how the dog responds to them.
A "junior handler" in agility is a handler who is under the age of 18. This is true for most other dog sports as well (except I believe that for Schutzhund a junior handler is considered anyone under 21).
dalmations are the most commonly deaf dogs.
German shepherd
The Labrador Retriever is the most popular breed of dog as a pet.
Most commonly, a "mutt"
The most popular Dog in the UK is the Labrador Retriever, which also holds this title in the US.
Most commonly, a "mutt"
Siberian Huskies I think are most commonly used.