Final answer:
Oscar, as a network engineer, can pursue the CompTIA Security+ or Cisco Certified CyberOps Associate certifications as entry-level or associate-level security certifications. The Certified Ethical Hacker (CEH) and CISSP certifications are more suitable for experienced professionals.
Step-by-step explanation:
Oscar, as a network engineer, can consider pursuing the CompTIA Security+ certification as an entry-level or associate-level security certification. This certification covers foundational knowledge and skills in cybersecurity, including network security, access control, and cryptography. It is widely recognized in the industry and is a great starting point for network professionals.
Another option for Oscar is the Cisco Certified CyberOps Associate certification. This certification focuses on the knowledge and skills needed for security analysts working with cybersecurity operations centers. It covers topics such as threat analysis, incident response, and security monitoring.
While the Certified Ethical Hacker (CEH) and CISSP (Certified Information Systems Security Professional) are both valuable certifications in the field of cybersecurity, they may be more suited for experienced professionals looking to advance their careers rather than entry-level certifications.