Final answer:
A PACT sailor trying to advance into a specific naval rating is known as a striker, who is working towards obtaining the required qualifications and competencies for that rating through various types of training and assessments.
Step-by-step explanation:
A PACT sailor seeking to advance into a specific rating is considered a striker. A striker is a sailor in the United States Navy's Professional Apprenticeship Career Track (PACT) program who has been assigned to a specific ship or command and is in the process of completing the qualifications necessary to strike for a rating. 'Striking' means that the sailor is acquiring the skills and completing the tasks required to become eligible for a particular naval rating (job). This process involves a combination of on-the-job training, formal schooling, and time in service. To successfully strike for a rating, the sailor must attain the necessary knowledge and proficiency in the job's competencies and pass any required examinations.