( brief explanation) for below two questions

elaborate the section below with examples including recommendations supported by evidences.

01 The strengths and weaknesses of different approaches (Internal and external) of recruitment and selection used by an organization

02.Rationale of having job description and person specification in the recruitment process of an organization,

include the rationale for the selected criteria as mentioned below requirements and qualifications needed , eg. If a degree is the highest preferred education qualification - why ?

Requirements

Experience in management or similar/relevant field

Comprehensive knowledge of MS Office

Strong verbal and written presentation skills

Effective communication skills (Recruitment Best Practices, 2015)

Excellent math and computational ability

Extensive knowledge of labor law and HR best practices

Degree in Human Resources or related field

Strong employment law knowledge

Education

GCE A/L with three "C" passes, English "A/ B" pass

Bachelor's Degree / Masters in Human Resources or related field