CompTIA Network+ N10-009 Exam Cram

Introduction CHAPTER 1 Networking Models, Ports, Protocols, and Services The OSI Networking Model     The OSI Seven-Layer Model     Comparing OSI to the Four-Layer TCP/IP Model     Identifying the OSI Layers at Which Various Network Components Operate     Data Encapsulation/Decapsulation and OSI Ports, Protocols, Services, and Traffic Types     Connection-Oriented Protocols Versus Connectionless Protocols     Internet Protocol     Transmission Control Protocol     User Datagram Protocol     Internet Control Message Protocol     IPsec     Generic Routing Encapsulation     File Transfer Protocol (FTP)     Secure File Transfer Protocol (SFTP)     Secure Shell (SSH)     Telnet     Simple Mail Transfer Protocol (SMTP)     Domain Name System (DNS)     Dynamic Host Configuration Protocol (DHCP)     Trivial File Transfer Protocol (TFTP)     Hypertext Transfer Protocol (HTTP)     Network Time Protocol (NTP)     Simple Network Management Protocol (SNMP)     Lightweight Directory Access Protocol (LDAP)     Hypertext Transfer Protocol Secure (HTTPS)     Server Message Block (SMB)     Syslog     Simple Mail Transfer Protocol Secure (SMTPS)     Lightweight Directory Access Protocol over SSL (LDAPS)     Structured Query Language (SQL) Server     Remote Desktop Protocol (RDP)     Session Initiation Protocol (SIP)     Understanding Port Functions     Traffic Types What’s Next? CHAPTER 2 Network Topologies, Architectures, and Types Network Topologies     Star/Hub and Spoke     Mesh Topology     Hybrid Topology     Point to Point     Spine and Leaf     Three-Tier Hierarchical Model     Collapsed Core     Traffic Flows     Older Topologies: Bus and Ring What’s Next? CHAPTER 3 Network Addressing, Routing, and Switching IPv4 Network Addressing     An Overview of IPv4     IP Address Classes     Subnet Mask Assignment     Subnetting     Identifying the Differences Between IPv4 Public and Private Networks     Classless Interdomain Routing     Default Gateways     Assigning IP Addresses     Identifying MAC Addresses Routing and Switching Technologies     The Default Gateway     Routing Tables     Static Routing     Default Route     Switching Methods     Dynamic Routing     Route Selection     Address Translation     First Hop Redundancy Protocol (FHRP)     Virtual IP     Subinterfaces     Virtual Local-Area Networks     Interface Configuration and Switch Management     Voice VLAN     Trunking     The Spanning Tree Protocol (STP)     Maximum Transmission Unit (MTU) Network Services     Dynamic Host Configuration Protocol     The DHCP Process     DHCP and DNS Suffixes     DHCP Relays and IP Helpers     Domain Name Service (DNS)     The DNS Namespace     Types of DNS Entries     DNS Records     DNS in a Practical Implementation     Time Protocols What’s Next? CHAPTER 4 Network Implementations Common Networking Devices     Router     Switch     Firewall     IDS/IPS     Load Balancer     Proxy Server     Network-Attached Storage (NAS)     Storage-Area Networks     Wireless Access Point     Wireless LAN Controller     Applications/Content Delivery Network     VPNs     Quality of Service     Time To Live (TTL) Networking Use Cases     Software-Defined Networking     Virtual Extensible Local-Area Network (VXLAN)     Zero Trust Architecture (ZTA)     Secure Access Secure Edge (SASE)/Security Service Edge (SSE)     Infrastructure as Code (IaC)     IPv6 Addressing     Comparing IPv4 and IPv6 Addressing What’s Next? CHAPTER 5 Cabling Solutions and Issues General Media Considerations     Broadband Versus Baseband Transmissions     Simplex, Half-Duplex, and Full-Duplex Modes     Data Transmission Rates     Wired Versus Wireless     Types of Wired Network Media     Types of Media Connectors     Media Couplers/Converters     TIA/EIA 568A and 568B Wiring Standards     Straight-Through Versus Crossover Cables     Rollover and Loopback Cables     Ethernet Copper and Fiber Standards     Multiplexing Options Troubleshooting Common Cable Connectivity Issues Limitations, Considerations, and Issues     Throughput, Speed, and Distance     Cabling Specifications/Limitations     Cabling Considerations     Cabling Issues     Signal Degradation     Interference     Improper Termination     Incorrect Pinout     Bad Ports     Open/Short     LED Status Indicators     Duplexing Issues     TX/RX Reversed     Dirty Optical Cables     Interface Issues Hardware Issues     Power over Ethernet Issues     Transceiver Issues Common Tools     Cable Crimpers, Strippers, and Snips/Cutters     Punchdown Tools     Tone Generator     Loopback Adapter     TDR/OTDR     Multimeter     Cable Tester     Wire Map     Tap     Fusion Splicer     Spectrum Analyzer     Fiber Light Meter What’s Next? CHAPTER 6 Wireless Solutions Understanding Wireless Basics     Wireless Channels and Frequencies     Speed, Distance, and Bandwidth     Channel Bonding     MIMO/MU-MIMO/Directional/Omnidirectional     Network Types     Establishing Communications Between Wireless Devices     Guest Networks     Configuring the Wireless Connection     Autonomous and Lightweight Access Points What’s Next? CHAPTER 7 Cloud Computing Concepts and Options Cloud Concepts     Service Models     Software as a Service     Platform as a Service     Infrastructure as a Service     Deployment Models     Private Cloud     Public Cloud     Hybrid Cloud     Multitenancy     Elasticity     Scalability     Network Functions Virtualization (NFV)     Cloud Connectivity Options     Virtual Private Cloud (VPC)     Cloud Gateways     Network Security, Groups, and Lists What’s Next? CHAPTER 8 Network Operations Physical Installation Factors     Components of Wiring Distribution     Using Uninterruptible Power Supplies     Beyond the UPS     Environmental Factors Organizational Processes and Procedures     Wiring and Port Locations     Physical and Logical Network Diagrams     Baseline/Golden Configurations     Policies, Procedures, Configurations, and Regulations     Labeling Monitoring Network Performance     Common Performance Metrics     SNMP     Network Performance, Load, and Stress Testing     Network Device Logs Disaster Recovery and High Availability     Backups     Backup Best Practices     Cold, Warm, Hot, and Cloud Sites     High-Availability Approaches and Recovery Concepts     Active-Active Versus Active-Passive     DR Testing Network Access and Management Methods     Site-to-Site VPN     Client-to-Site VPN     Connection Methods     Jump Box     In-Band Versus Out-of-Band Management What’s Next? CHAPTER 9 Network Security Common Security Concepts     Encryption     Access Control     Mandatory Access Control     Discretionary Access Control     Rule-Based Access Control     Role-Based Access Control     Defense in Depth     Separation of Duties     Deception Technologies: Honeypots and Honeynets     RADIUS and TACACS+     Kerberos Authentication     Local Authentication     Lightweight Directory Access Protocol     Using Certificates     Identity and Access Management (IAM)     Security Assertion Markup Language (SAML)     Multifactor Authentication Factors     Auditing and Regulatory Compliance     Additional Access Control Methods     Risk Management     Penetration Testing     Security Information and Event Management Common Networking Attacks     Denial-of-Service and Distributed Denial-of-Service Attacks     Other Common Attacks     Vulnerabilities and Prevention Applying Network Security     Disposing of Assets     Secured Versus Unsecured Protocols     Key Management     Hardening Best Practices     Wireless Security     Working with Zones What’s Next? CHAPTER 10 Network Troubleshooting Troubleshooting Steps and Procedures     Identify the Problem     Establish a Theory of Probable Cause     Test the Theory to Determine the Cause     Establish a Plan of Action     Implement the Solution or Escalate     Verify Full System Functionality     Document Findings, Actions, Outcomes, and Lessons Learned Throughout the Process Troubleshooting Common Networking Issues     Common Considerations     Common Problems to Be Aware Of     Hardware Failure     Network Performance Issues     Wireless Issues     Site Surveys     Factors Affecting Wireless Signals     Troubleshooting AP Coverage Troubleshooting Tools     Toner     Cable Tester     Taps     Visual Fault Locator     Wi-Fi Analyzer     Protocol Analyzer     Speed Tester     Port Scanner     LLDP and CDP     NetFlow Analyzer     TFTP Server     Terminal Emulator     IP Scanner     Command-Line Tools     The Trace Route Utility (tracert/traceroute)     ping     ARP     The netstat Command     ipconfig     ifconfig     nslookup     dig     The tcpdump Command     The route Utility     nmap     Basic Networking Device Commands What’s Next? Cram Sheet Online Glossary 9780135340837    TOC    7/25/2024