Network & Security Administrator

**Level**

**L2**

**Communication**

Good

Good

**Experience Range**

5-7 Years

**Required Skills Set**

Monitor and Maintain all Network Active and Passive activities Gather business requirement for Network active and Passive activities Coordinate with the Vendor for Scope and Technical discussion Passive and Active Implementation by Coordinating with Vendors Troubleshoot Responding in Timely manner for service and requests related to Network Raise ticket to ISP and coordinate with ISP to solve MPLS / ILL / Point to Point lines New Switch Installation / configuration / Troubleshooting along with L2 and L3 team Access point Installation / configuration / Troubleshooting along with L2 and L3 team New site Network Planning and implementation

**Qualification**

Graduation, ITIL

**Certification**

Any Technical Certificate (e.g. Hardware Networking Course, Computer course, MCSE, CCNA)

**Technical Question**

Can you explain the OSI model and its significance in network troubleshooting?

Describe how you would set up and configure a VLAN.

What are some common routing protocols, and how do they differ from each other?

Can you explain how subnetting works and why it is important?

What is the purpose of a DHCP server, and how does it function in a network?

How do you configure and troubleshoot DNS issues?

Can you describe what a firewall is and how it is used to secure a network?

What tools and software do you use for network monitoring and management?

How do you approach configuring and managing network switches and routers?

Can you explain the process of setting up a secure Wi-Fi network?

What steps do you take to ensure network redundancy and high availability?

Describe your experience with configuring and managing VPNs.

Describe a complex network issue you encountered and how you resolved it.

How do you troubleshoot network connectivity problems?

What is your process for diagnosing and fixing slow network performance?

Can you provide an example of how you handled a network outage?

How do you approach troubleshooting hardware failures, such as a faulty switch or router?

What are some common network security threats, and how do you protect against them?

How do you ensure compliance with industry standards and regulations in your network management?

Describe your experience with network security tools, such as intrusion detection/prevention systems (IDS/IPS) and antivirus software.

How do you handle network access control and authentication to ensure security?

Can you explain the concept of network segmentation and its benefits for security?

How do you handle and prioritize support requests from end-users?

Describe a time when you had to explain a technical issue to a non-technical person. How did you ensure they understood?

How do you manage and document network changes and incidents?

What strategies do you use to ensure effective communication within your IT team and with other departments?

How do you handle stressful situations, such as urgent network issues or dissatisfied users?

A user reports that they cannot connect to the network. Walk me through your troubleshooting process.

You need to upgrade the firmware on a critical network device, but it cannot be taken offline during business hours. How would you handle this situation?

A security audit has revealed vulnerabilities in your network. What steps would you take to address these findings?

You are tasked with expanding the network to a new office location. What considerations and steps are involved in this process?

How do you approach planning for network scalability and future growth?

What considerations do you take into account when designing a network for a new office or data center?

Can you explain the importance of Quality of Service (QoS) in network design and how you implement it?