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Network Administrators are responsible for maintaining, configuring, and securing an organization's computer networks and ensuring they operate smoothly.
Dynamic Host Configuration Protocol (DHCP) automatically assigns IP addresses to devices on a network, simplifying network management and reducing configuration errors
Secure wireless networks with strong encryption, strong passwords, MAC filtering, regular updates, and disabling unnecessary services.
A subnet divides an IP network into smaller segments to improve network efficiency and security, facilitating IP address allocation and management.
Troubleshoot by checking physical connections, configuring network devices, using network monitoring tools, and diagnosing issues methodically.
A firewall is a security device that filters network traffic, allowing or blocking data based on predefined rules to protect the network from threats.
Secure remote access with virtual private networks (VPNs), strong authentication, access controls, and regular security updates.
NAT allows multiple devices in a private network to share a single public IP address, providing security and enabling efficient internet access.
Plan for scalability by using modular hardware, virtualization, and efficient network design to accommodate the organization's growth.
VLANs segment a network into isolated groups, improving network performance, management, and security by logically dividing broadcast domains.
Ensure redundancy through failover mechanisms, load balancing, backup links, and redundant hardware to maintain network availability.
DNS translates domain names into IP addresses, enabling users to access websites and services using human-readable names.
Protect against DDoS attacks using intrusion prevention systems, content delivery networks, and traffic scrubbing services to mitigate attack traffic.
SNMP is used to monitor and manage network devices, collecting data on device health, status, and performance for network administrators.
Maintain compliance by implementing security policies, conducting regular audits, and adhering to industry-specific regulations and guidelines.
A network switch connects devices within a LAN, while a router connects different networks and routes data between them.
Secure file sharing with access controls, encryption, regular data backups, and employee training on secure file-sharing practices.
Port forwarding directs incoming network traffic to a specific device or service within a network, enabling external access to internal resources.
Manage IP addresses through DHCP, static IP assignments, and effective subnetting to ensure efficient address allocation and routing.
A proxy server acts as an intermediary between users and the internet, providing security, anonymity, and caching for network requests.
Secure network devices by changing default credentials, enabling authentication, using strong passwords, updating firmware, and monitoring device logs.
QoS prioritizes network traffic, ensuring that critical applications receive higher bandwidth and latency requirements, improving network performance.
Perform network backups using backup software, redundant storage, and off-site storage to ensure data recovery and business continuity.
Network monitoring tools track network performance, identify issues, and provide real-time visibility into network activity for effective troubleshooting and optimization.
Handle incidents by isolating affected systems, identifying the source, notifying stakeholders, containing the breach, and implementing measures to prevent future incidents.
Use access control lists (ACLs), 802.1X authentication, and role-based access control to restrict network access and enforce security policies.
A NIDS monitors network traffic for signs of intrusion or suspicious activities, providing alerts to help network administrators detect and respond to security threats.
Prevent MITM attacks using strong encryption, digital certificates, secure key exchanges, and monitoring network traffic for suspicious activity.
A network gateway connects different networks and manages data routing, serving as an entry and exit point that can impact network security and traffic control.
Use network monitoring tools to collect and analyze network data for performance tuning, troubleshooting, and identifying security incidents.
Implement and maintain remote access through VPNs, remote desktop services, secure tunneling, and authentication mechanisms to ensure secure remote connections.
An IP address conflict occurs when two devices share the same IP address. Resolve it by assigning unique IP addresses and ensuring DHCP functionality.
Manage configurations using version control, securely store backups, and regularly update configurations to protect against unauthorized changes.
Load balancers distribute network traffic across multiple servers to optimize performance, enhance scalability, and ensure high availability.
Plan for disaster recovery by creating backups, establishing recovery procedures, and conducting tests to ensure data restoration and business continuity.
Optimize performance with network monitoring, traffic analysis, quality of service (QoS), and optimizing network hardware and configurations.
A proxy server serves as an intermediary between clients and the internet, enhancing privacy, security, and caching capabilities for network requests.
Apply updates securely by verifying the source, using authenticated downloads, and testing in a controlled environment to avoid network disruptions
An IDS monitors network traffic for signs of intrusion and generates alerts. A firewall filters network traffic based on predefined rules to allow or block data.
Prioritize QoS settings, reduce network congestion, and optimize network configurations for low-latency, high-quality video and voice communication.
Network segmentation divides a network into isolated segments, reducing the attack surface and enhancing security by controlling access between segments.
Troubleshoot DNS issues by checking DNS server configurations, testing resolution, and monitoring DNS logs for errors, and correcting misconfigurations.
A network protocol analyzer captures and analyzes network traffic, aiding in diagnosing network issues, monitoring performance, and identifying security incidents.
Secure network infrastructure devices by using strong authentication, access controls, firmware updates, and regularly monitoring logs for unauthorized access attempts.
Maintain compliance through security policies, regular audits, adherence to industry-specific regulations, and continuous monitoring for security vulnerabilities.
A VPN creates secure, encrypted connections over public networks, protecting data during transmission and ensuring secure remote access to corporate resources.
Maintain updated network documentation and diagrams to help identify and resolve network issues, plan for network changes, and enhance overall network management.
Ensure secure remote access using VPNs, multi-factor authentication, and secure tunneling protocols to protect network communications and resources.
NTP servers synchronize network devices' time, ensuring accurate logs, event correlation, and security through synchronized time stamps.
Use access controls, secure device configurations, change management procedures, and regular monitoring to prevent unauthorized changes and maintain network security.
