Consider the following statements about UPSC :
1. It conducts examinations for appointments to the all-India services, Central services and
public services of the centrally administered territories.
2. It is concerned with the classification of services, pay and service conditions, cadre management, training, and so on.
3. The role of UPSC is limited and recommendations made by it are only of advisory in nature and hence, not binding on the government.
Which of the above functions is/are performed by UPSC ?