Networking Essentials: CompTIA Network Plus N10-006 Exam Pre

Explore network monitoring tools including packet sniffers, packet flow monitoring, port scanners, SNMP and MIB data, wireless survey analyzers, and temperature humidity and power monitoring to troubleshoot bottlenecks and security.

Explore how the CIS log server and SIEM tools aggregate logs from routers and devices, enabling data correlation and forensic analysis. Learn about environmental monitoring, wireless analyzers, and compliance logs.

Describe how to use reports, metrics, and baselines to identify bottlenecks, manage logs, and analyze utilization across networks to improve performance.

Master configuration management across large and small offices with backups, archives, baselines, onboarding and offboarding mobile devices, network access control and posture assessment, and clear network documentation.

Define network segmentation and explain its benefits for performance, security, compliance, and compatibility, with examples of legacy systems, public networks, testing labs, and media nets, plus honeypots and honeynets.

Explain operating system, firmware, and driver updates patch security holes and add features. Differentiate major vs minor releases, upgrades vs downgrades, and recognize an out-of-band update with a configuration backup.

Discover how switches reduce collision and broadcast domains, build a MAC forward filter table, and forward frames by destination; learn VLAN fundamentals, static/dynamic assignment, and access/trunk ports.

Explore how VLAN tagging and trunking interconnect multiple switches and routers, tag frames with VLAN IDs, and use subnets and routing for inter-VLAN communication, plus port bonding and port mirroring.

Discover power over ethernet basics powering IP phones, wireless AP, and cameras over the data cable. Learn how spanning tree protocols prevent loops and broadcast storms in switch networks.

Explore how wireless networks operate and are optimized with routers, access points, and bridges, using heat maps, roaming with the same SSID, and ad hoc, infrastructure, and mesh typologies.

Connect two buildings with a wireless bridge to avoid ground loops and copper cabling costs. Understand line-of-sight, antenna types, 2.4 gigahertz and five gigahertz bands, and wireless standards for coverage.

Explore disaster recovery and business continuity to keep operations running after disasters. Learn about data breaches, single points of failure, and using vulnerability scanning and penetration testing to reduce risk.

Differentiate brute force from social engineering and explain denial of service. Outline attack vectors such as IP spoofing, ARP cache poisoning, session hijacking, evil twin, rogue AP, and wardriving.

Explore protocol abuse and DNS tunneling to bypass firewalls, and examine threats like session hijacking, land hopping, evil twin, rogue access points, wardriving, and social engineering in wireless networks.

Explore how malware drives attack vectors and zero-day exploits, and learn to reduce risk by disabling unused services, closing ports, and enforcing encryption and timely patches.

Learn network hardening techniques, including host-based, cloud-based, and network-based anti-malware protections, DHCP/ARP defenses, MAC filtering, and security policies to minimize attack surfaces.

Master wireless security from WEP to WPA2, distinguish personal and enterprise modes, disable insecure options like WEP and WPS, and implement 802.1X/EAP with TLS/TTLS and SHA-2 hashes for strong authentication.

Protect your network with physical security measures beyond encryption by securing network closets, using door access controls, cipher locks, key fobs, biometrics, video monitoring, mantraps, and security guards.

Explore the fundamentals of firewalls, including host-based and network-based types, stateless and stateful inspection, and key concepts like acls, dmz, and implicit deny.

Learn how network access control restricts access to private networks using 802.1X, posture assessment, and persistent or non-persistent agents, with guest and quarantine networks and edge and access controls.

Discover how IT first responders secure the digital area during a data breach, document the scene, preserve evidence with chain of custody, and use e-discovery tools and legal holds.

Explore methodical troubleshooting for networks, using bottom-to-top and top-down OSI models, divide-and-conquer, information gathering from users and logs, and hypothesis testing to diagnose and resolve issues efficiently.

Learn to use IP config, ifconfig, and netstat, then test reachability with ping, ping6, traceroute, and path ping, while performing DNS lookups and ARP checks.

Master essential network troubleshooting tools from line testers and cable certifiers to multimeters and toner probes, and use diagnostic sites, looking glass services, and analyzers to identify and resolve issues.

Diagnose wireless networks by identifying signal loss causes, overlapping channels, interference, and balance bandwidth saturation and device saturation while optimizing power and channel selection to improve signal-to-noise ratio and throughput.

Analyze saturation types—device and bandwidth—and mitigate with multiple access points on different bands and channels, and consider thin versus thick access points.

Explore troubleshooting copper cabling by diagnosing shorts, opens, cross-talk, emi/rfi effects, and testing with certifiers; learn recommended distances, shielding, and options like repeaters or fiber for extended runs.

Explore common fiber troubleshooting issues, including bend radius, dirty connectors, distance limits, and fiber type, wavelength, and connector mismatches, plus SFP/GBIC problems.

Identify and fix common network problems by checking IP configuration, DHCP and DNS settings, and diagnosing issues such as duplicate IPs, rogue DHCP servers, scope exhaustion, and broadcast storms.

Troubleshoot end-to-end network issues by examining speed and duplex settings, auto negotiation, and NIC teaming misconfigurations, identifying weak links like category 3 cabling and firewall or routing black holes.

Troubleshoot security configurations by reviewing firewall and ACL rules, misconfigurations, and default passwords. Assess edge threats such as DoS, ping of death, port status, trusted users, and firmware patches.

Identify and mitigate common security issues in networks by examining triple-A misconfigurations, backdoor access risks, ARP cache poisoning, banner grabbing, domain local groups, wireless jamming, and patch and malware management.

Troubleshoot WAN issues from the demarcation point to the LAN, covering CPE, CSU/DSU, DNS, interference, satellite latency, split horizon, and fair access policy.

Describe security policies, consent to monitoring clauses, and acceptable use policies. Identify standard business documents such as SLA, MOU, MSA, and SOW.

Apply electrical safety and grounding to protect IT equipment from ESD. Follow safe handling, rack placement, MSDS guidelines, emergency procedures, and Halon vs water-based fire suppression.

Install and configure equipment while planning cabling and power, organize distribution frames and patch panels, ensure labeling and cable management, and implement uninterruptible power supply and line conditioning for operation.

Optimize airflow by using properly ventilated data closets and racks, and label cables, ports, and workstations with consistent naming to simplify troubleshooting.

Learn how to plan, document, approve, and test network changes using a change request, manage maintenance windows and downtime, and update stakeholders and documentation.