Scoring Format:
1. Roles & Responsibilities: 8/10
2. Years of Experience: 6/10
3. Education Qualification: 2/10
4. Skills/Knowledge: 8/10
5. Domain/Industry: 0/10
6. Key Competencies: 8/10

Descriptive Analysis:
Overall Summary:
- The candidate's resume aligns well with the roles and responsibilities of a Network Security Engineer, scoring 8/10.
- The candidate has 5 years of experience, which meets the requirement of 5-7 years, scoring 6/10.
- The education qualification is not clearly mentioned in the resume, resulting in a low score of 2/10.
- The candidate possesses the primary skills required for the job, including troubleshooting, handling of network security devices, firewall policy/rules configuration, access control configuration, network security devices HA configuration, DR solution support, and escalation management, scoring 8/10.
- There is no information provided about the candidate's knowledge of the domain/industry, resulting in a score of 0/10.
- The candidate demonstrates key competencies in troubleshooting, network security, firewalls, load balancers, firewall policy/rules configuration, access control configuration, HA configuration, DR solution support, and escalation management, scoring 8/10.

In summary, the candidate's resume aligns well with the roles and responsibilities, skills/knowledge, and key competencies required for the Network Security Engineer position. However, there is a lack of information regarding the candidate's education qualification and knowledge of the domain/industry.