CompTIA Network+ Review Guide

CompTIA® Network+® Review Guide Exam N10-007
Acknowledgments
About the Author
Contents at a Glance
Contents
Introduction
Chapter 1 Domain 1.0: Networking Concepts
	1.1 Explain the purposes and uses of ports and protocols.
		Protocols and Ports
		Protocol Types
		Exam Essentials
	1.2 Explain devices, applications, protocols and services at their appropriate OSI layers.
		Application Layer
		Presentation Layer
		Session Layer
		Transport Layer
		Network Layer
		Data Link Layer
		Physical Layer
		Exam Essentials
	1.3 Explain the concepts and characteristics of routing and switching.
		Properties of Network Traffic
		Segmentation and Interface Properties
		Routing
		IPv6 Concepts
		Performance Concepts
		NAT/PAT
		Port Forwarding
		Access Control List
		Distributed Switching
		Packet Switched vs. Circuit-Switched Networks
		Software-Defined Networking
		Exam Essentials
	1.4 Given a scenario, configure the appropriate IP addressing components.
		Private vs. public
		Loopback and Reserved
		Default Gateway
		Virtual IP
		Subnet Mask
		Subnetting
		Address Assignments
		Exam Essentials
	1.5 Compare and contrast the characteristics of network topologies, types, and technologies.
		Wired Topologies
		Wireless Topologies
		Types
		Technologies That Facilitate the Internet of Things (IoT)
		Exam Essentials
	1.6 Given a scenario, implement the appropriate wireless technologies and configurations.
		802.11 Standards
		Cellular
		Frequencies
		Speed and Distance Requirements
		Channel Bandwidth
		Channel Bonding
		MIMO/MU-MIMO
		Unidirectional/Omnidirectional
		Site Surveys
		Exam Essentials
	1.7 Summarize cloud concepts and their purposes.
		Types of Services
		Cloud Delivery Models
		Connectivity Methods
		Security Implications/Considerations
		Relationship between Local and Cloud Resources
		Exam Essentials
	1.8 Explain the functions of network services.
		DNS
		DHCP Service
		NTP
		IPAM
		Exam Essentials
	Review Questions
Chapter 2 Domain 2.0: Infrastructure
	2.1 Given a scenario, deploy the appropriate cabling solution.
		Media types
		PVC vs. Plenum
		Connector types
		Transceivers
		Characteristics of fiber transceivers
		Termination points
		Copper cabling standards
		Copper termination standards
		Ethernet deployment standards
		Exam Essentials
	2.2 Given a scenario, determine the appropriate placement of networking devices on a network and install/configure them.
		Firewall
		Routers
		Switches
		Hubs
		Bridges
		Modems
		Wireless access point
		Media Converters
		Wireless range extender
		VoIP endpoint
		Exam Essentials
	2.3 Explain the purposes and use cases for advanced networking devices.
		Multilayer switch
		Wireless controller
		Load balancer
		IDS and IPS
		Proxy Servers
		VPN concentrator
		AAA/RADIUS server
		UTM appliance
		NGFW/Layer 7 firewall
		VoIP PBX
		VoIP gateway
		Content filter
		Exam Essentials
	2.4 Explain the purposes of virtualization and network storage technologies.
		Virtual networking components
		Network storage types
		Connection type
		Jumbo Frames
		Exam Essentials
	2.5 Compare and contrast WAN technologies.
		Service type
		Transmission mediums
		Characteristics of service
		Termination
		Exam Essentials
	Review Questions
Chapter 3 Domain 3.0: Network Operations
	3.1 Given a scenario, use appropriate documentation and diagrams to manage the network.
		Diagram symbols
		Standard operating procedures/work instructions
		Logical vs. physical diagrams
		Rack diagrams
		Change management documentation
		Wiring and port locations
		IDF/MDF documentation
		Labeling
		Network configuration and performance baselines
		Inventory management
		Exam Essentials
	3.2 Compare and contrast business continuity and disaster recovery concepts.
		Availability concepts
		Recovery
		Exam Essentials
	3.3 Explain common scanning, monitoring and patching processes and summarize their expected outputs.
		Processes
		Event management
		SNMP monitors
		Metrics
		Exam Essentials
	3.4 Given a scenario, use remote access methods.
		VPN
		RDP
		SSH
		VNC
		Telnet
		HTTPS/management URL
		Remote file access
		Out-of-band management
		Exam Essentials
	3.5 Identify policies and best practices.
		Privileged user agreement
		Password policy
		On-boarding/off-boarding procedures
		Licensing restrictions
		International export controls
		Data loss prevention
		Remote access policies
		Incident response policies
		BYOD
		AUP
		NDA
		System life cycle
		Safety procedures and policies
		Exam Essentials
	Review Questions
Chapter 4 Domain 4.0: Network Security
	4.1 Summarize the purposes of physical security devices.
		Detection
		Prevention
		Exam Essentials
	4.2 Explain authentication and access controls.
		Authentication, authorization, and accounting
		Multifactor authentication
		Access control
		Exam Essentials
	4.3 Given a scenario, secure a basic wireless network.
		WPA
		WPA2
		TKIP-RC4
		CCMP-AES
		Authentication and authorization
		Geofencing
		Exam Essentials
	4.4 Summarize common networking attacks.
		DoS
		Social engineering
		Insider threat
		Logic bomb
		Rogue access point
		Evil twin
		War-driving
		Phishing
		Ransomware
		DNS poisoning
		ARP poisoning
		Spoofing
		Deauthentication
		Brute force
		VLAN hopping
		Man-in-the-middle
		Exploits vs. vulnerabilities
		Exam Essentials
	4.5 Given a scenario, implement network device hardening.
		Changing default credentials
		Avoiding common passwords
		Upgrading firmware
		Patching and updates
		File hashing
		Disabling unnecessary services
		Using secure protocols
		Generating new keys
		Disabling unused ports
		Exam Essentials
	4.6 Explain common mitigation techniques and their purposes.
		Signature management
		Device hardening
		Change native VLAN
		Switch port protection
		Network segmentation
		Privileged user account
		File integrity monitoring
		Role separation
		Restricting access via ACLs
		Honeypot/honeynet
		Penetration testing
		Exam Essentials
	Review Questions
Chapter 5 Domain 5.0 Network Troubleshooting and Tools
	5.1 Explain the network troubleshooting methodology.
		Identify the problem
		Establish a theory of probable cause
		Test the theory to determine the cause
		Establish a plan of action to resolve the problem and identify potential effects
		Implement the solution or escalate as necessary
		Verify full system functionality and, if applicable, implement preventive measures
		Document findings, actions, and outcomes
		Exam Essentials
	5.2 Given a scenario, use the appropriate tool.
		Hardware tools
		Software tools
		Exam Essentials
	5.3 Given a scenario, troubleshoot common wired connectivity and performance issues.
		Attenuation
		Latency
		Jitter
		Crosstalk
		EMI
		Open/Short
		Incorrect pin-out
		Incorrect cable type
		Bad port
		Transceiver mismatch
		TX/RX reverse
		Duplex/speed mismatch
		Damaged cables
		Bent pins
		Bottlenecks
		VLAN mismatch
		Network connection LED status indicators
		Exam Essentials
	5.4 Given a scenario, troubleshoot common wireless connectivity and performance issues.
		Reflection
		Refraction
		Absorption
		Latency
		Jitter
		Attenuation
		Incorrect antenna type
		Interference
		Incorrect antenna placement
		Channel overlap
		Overcapacity
		Distance limitations
		Frequency mismatch
		Wrong SSID
		Wrong passphrase
		Security type mismatch
		Power levels
		Signal-to-noise ratio
		Exam Essentials
	5.5 Given a scenario, troubleshoot common network service issues.
		Names not resolving
		Incorrect gateway
		Incorrect netmask
		Duplicate IP addresses
		Duplicate MAC addresses
		Expired IP address
		Rogue DHCP server
		Untrusted SSL certificate
		Incorrect time
		Exhausted DHCP scope
		Blocked TCP/UDP ports
		Incorrect host-based firewall settings
		Incorrect ACL settings
		Unresponsive service
		Hardware failure
		Exam Essentials
	Review Questions
Appendix Answers to Review Questions
	Chapter 1: Domain 1.0: Networking Concepts
	Chapter 2: Domain 2.0: Infrastructure
	Chapter 3: Domain 3.0: Network Operations
	Chapter 4: Domain 4.0: Network Security
	Chapter 5: Domain 5.0 Network Troubleshooting and Tools
Index