DNA breed tests are found to be quite effective these days. They can help in solving many problems and can provide valuable information about the dog. These tests are quite effective in understanding the lineage and the possible diseases that the dog may be predisposed to obtain. For example, certain breed of dogs is more prone than others to obtain arthritis. This can be prevented by knowing about the breed through the DNA test.
In the same way, one can also get valuable insight about the personality and behaviour of a dog. Some dogs are more short tempered than others. Some love to be social while others are not. Also you can know about the height or weight that the dog is likely to attain. Just like how people in different parts of the world have different accents and languages similarly dog breeds have multiple variations when it comes to barking patterns if you look at dogs in different countries of the world. It is woof woof in English , jau jau in Spanish etc.
Some dog breeds are bred to bark. The most well known barking breeds are the terriers. These are specialized hunting dogs whose sole purpose is to follow their prey into underground dens or burrows. People who used to keep terriers were usually those who began selecting dogs that barked loudly when they were quite excited. Some of the other breeds of dogs that tend to bark a lot are the keeshonden, beagles, cocker spaniels and herding breeds such as the Shetland sheepdogs.
The basenji is a barkless breed of dog on the other hand. It just makes little noise and this sound is often described as yodelling or soft howling. Thus if you are looking for a barking dog or a dog that does not bark at all, knowing its breed can help you to better identify it.