Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Distributed Denial of Service is a Scalability Problem   Distributed denial of service attacks are often considered a security
problem. While this may be the way to view the problem with today's Internet,
new network architectures attempting to address the issue should view it as a
scalability problem. In addition, they need to address the problem based on a
rigorous foundation.

25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th