Hello,

You can easily access previous year paper of NET Paper I by visiting our page at https://competition.careers360.com/articles/ugc-net-question-papers, however when it comes to answer keys or solutions and for paper II of Arabic you can search in google regarding that, many sites have uploaded the previous year papers I and II with its solutions, going through previous year paper will help you become acquainted with exam pattern, marking scheme, important topics, analyzing your  areas of strength and weakness, and accordingly improve upon your speed and time management skills,