Explain the seven layers of the OSI model, their functions, and how they help standardize network communication and troubleshooting.

Discuss your experience with configuring routers, switches, and firewalls, including specific hardware or software you've used.

Describe your step-by-step process for diagnosing and resolving network connectivity problems, including tools and commands you use.

Explain the key differences between TCP and UDP, including their use cases based on reliability, speed, and data integrity.

Discuss the implementation of security measures such as firewalls, intrusion detection systems, VPNs, and secure passwords. Mention best practices like regular updates and monitoring.

Define VLANs (Virtual Local Area Networks), their benefits in segmenting network traffic, and how they can improve security and efficiency.

Mention specific tools like Wireshark, Nagios, SolarWinds, or PRTG, and describe how you've used them to monitor network performance and troubleshoot issues.

Discuss the importance of accurate network documentation and your process for maintaining and updating it, including network diagrams and IP address management.

Explain the purpose of DHCP (Dynamic Host Configuration Protocol), how it assigns IP addresses to devices, and the benefits of using it in a network.

Provide a specific example, detailing the problem, your troubleshooting steps, the tools you used, and the final resolution.

Share your strategies for staying current with new technologies, such as attending training sessions, online courses, reading industry blogs, and hands-on practice.

Discuss your experience with setting up and managing Wi-Fi networks, including knowledge of standards like 802.11, security protocols, and troubleshooting wireless issues.

Explain your approach to prioritizing network projects based on factors like urgency, impact on the organization, and available resources.

Define Network Address Translation (NAT), its purpose in mapping private IP addresses to public ones, and its role in conserving IP addresses and enhancing security.

Discuss methods for assessing current network capacity, forecasting future needs, and planning for upgrades to accommodate growth and prevent bottlenecks.

Describe the concept of redundancy, its role in ensuring network reliability and availability, and the use of redundant paths, hardware, and failover systems.

Explain Virtual Private Networks (VPNs), how they create secure connections over the internet, and their use cases for remote access and secure data transmission.

Discuss your experience with implementing and enforcing network security policies, conducting audits, and ensuring compliance with relevant regulations and standards.

Explain techniques for monitoring and optimizing network performance, such as traffic analysis, bandwidth management, and optimizing configurations for better efficiency.

Share your knowledge of Voice over IP (VoIP) technology, including setting up and managing VoIP systems, ensuring quality of service, and troubleshooting issues.

Discuss your approach to responding to network outages, including incident management, communication with stakeholders, and implementing solutions to restore service quickly.

Define network segmentation and its benefits in improving security, reducing congestion, and managing traffic within a network.

Discuss your experience with cloud platforms like AWS, Azure, or Google Cloud, focusing on networking services, cloud infrastructure, and hybrid cloud solutions.

Explain your process for documenting network changes, incidents, and resolutions, and how you communicate these to the relevant stakeholders.

Share your passion for networking, problem-solving, and the satisfaction of ensuring a reliable and secure network infrastructure for an organization.