CCST Networking
Cisco Certified Support Technician, entry-level networking certification.
Getting Started: Your CCST Journey
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Cisco Certified Support Technician (CCST) Networking — key terms, tricks & tips
Everything from the course in one searchable place: 300 entries. Use it to review before a practice test or look up a word you forgot.
300 results
Pearson VUE
Third-party vendor administering Cisco certification exams globally.
Getting Started: Your CCST Journey
Exam Domains
Categories of topics covered in the certification exam.
Getting Started: Your CCST Journey
Network Fundamentals
Basic concepts like network types, topologies, and OSI model.
Getting Started: Your CCST Journey
IP Connectivity
How devices communicate using IP addresses and routing.
Getting Started: Your CCST Journey
Official Exam Topics
Detailed document outlining all knowledge tested on the exam.
Getting Started: Your CCST Journey
Cisco Learning Network
Online platform for Cisco training, resources, and community.
Getting Started: Your CCST Journey
Understanding the CCST Networking Exam
To remember the exam domains, think: 'Net Access Connects Services Securely Automatically.' (Net Fundamentals, Network Access, IP Connectivity, IP Services, Security, Automation)
Getting Started: Your CCST Journey
Understanding the CCST Networking Exam
The CCST Networking exam (200-301) is the official exam code for the Cisco Certified Support Technician Networking certification. Memorize this code.
Getting Started: Your CCST Journey
Understanding the CCST Networking Exam
Underestimating the importance of the official exam topics document.
Getting Started: Your CCST Journey
Understanding the CCST Networking Exam
Not practicing with sample questions or practice exams.
Getting Started: Your CCST Journey
Understanding the CCST Networking Exam
Focusing only on memorization without understanding concepts.
Getting Started: Your CCST Journey
Active Learning
Engaging with material to process and understand it deeply, not just passively receive.
Getting Started: Your CCST Journey
Passive Learning
Receiving information without active engagement, like just reading or watching.
Getting Started: Your CCST Journey
Cisco Packet Tracer
A network simulation tool for practicing network design and configuration.
Getting Started: Your CCST Journey
Exam Topics List
Official document outlining all concepts covered on a certification exam.
Getting Started: Your CCST Journey
Study Plan
A structured schedule for learning, reviewing, and practicing exam material.
Getting Started: Your CCST Journey
Spaced Repetition
Reviewing material at increasing intervals to improve long-term retention.
Getting Started: Your CCST Journey
Effective Study Strategies for CCST Networking
To remember the benefits of Active Learning: 'ACT' - Apply, Communicate, Test! Apply your knowledge, Communicate it to others, and Test yourself regularly.
Getting Started: Your CCST Journey
Effective Study Strategies for CCST Networking
The CCST Networking exam expects you to know not just 'what' a protocol is, but 'why' and 'how' it's used. Look for questions that test your understanding of practical application and troubleshooting scenarios.
Getting Started: Your CCST Journey
Effective Study Strategies for CCST Networking
Only reading the textbook without practicing or summarizing.
Getting Started: Your CCST Journey
Effective Study Strategies for CCST Networking
Ignoring the official exam topics list and studying irrelevant material.
Getting Started: Your CCST Journey
Effective Study Strategies for CCST Networking
Cramming all the material the night before the exam instead of consistent study.
Getting Started: Your CCST Journey
Hub
Basic device that broadcasts data to all connected ports.
Networking Essentials
Switch
Intelligent device that forwards data to specific destination ports.
Networking Essentials
Router
Device that connects different networks and forwards data between them.
Networking Essentials
Topology
The physical or logical arrangement of network devices and connections.
Networking Essentials
Star Topology
All devices connect to a central hub or switch.
Networking Essentials
Bus Topology
All devices share a single backbone cable.
Networking Essentials
Ring Topology
Devices connect in a circular fashion, data flows one way.
Networking Essentials
Mesh Topology
Every device connects directly to every other device.
Networking Essentials
Network Components & Topologies
Think of a 'STAR' network like a celebrity with all their fans (devices) revolving around them (the central switch). If the star disappears, all the fans are lost!
Networking Essentials
Network Components & Topologies
The exam often presents scenarios and asks you to identify the best component or topology for a given requirement (e.g., 'most fault tolerant,' 'most common LAN,' 'connects two different networks'). Memorize the primary function of hubs, switches, and routers, and the key characteristics of Star, Bus, Ring, and Mesh topologies.
Networking Essentials
Network Components & Topologies
Confusing a hub with a switch: Hubs broadcast, switches direct traffic.
Networking Essentials
Network Components & Topologies
Underestimating the impact of a central device failure in a Star topology.
Networking Essentials
Network Components & Topologies
Not understanding that routers connect different networks (Layer 3), while switches connect devices within the same network (Layer 2).
Networking Essentials
Ethernet
A family of wired computer networking technologies.
Networking Essentials
Twisted Pair
Copper wires twisted together to reduce interference.
Networking Essentials
Fiber Optic
Cables using light pulses for high-speed data transmission.
Networking Essentials
Half-Duplex
Communication where devices send or receive, but not simultaneously.
Networking Essentials
Full-Duplex
Communication where devices send and receive simultaneously.
Networking Essentials
RJ45
Common connector for Ethernet twisted-pair cables.
Networking Essentials
Cat6a
Ethernet cable supporting 10 Gbps up to 100 meters.
Networking Essentials
Auto-MDIX
Feature allowing network devices to automatically detect cable type.
Networking Essentials
Network Access & Cable Types
Remember 'F' for 'Fiber' and 'Fast' and 'Far' for its speed and distance advantages over copper. Also, 'H' for 'Half' means 'Hear' or 'Talk', but not both.
Networking Essentials
Network Access & Cable Types
The CCST Networking exam expects you to differentiate between Cat5e, Cat6, and Cat6a capabilities (speed/distance) and know the primary uses for single-mode vs. multi-mode fiber. Pay close attention to the definitions of half-duplex and full-duplex.
Networking Essentials
Network Access & Cable Types
Confusing Cat6 and Cat6a capabilities, especially regarding 10 Gbps speeds and distances.
Networking Essentials
Network Access & Cable Types
Assuming all network issues are software-related, overlooking physical layer problems like bad cables or duplex mismatches.
Networking Essentials
Network Access & Cable Types
Using multi-mode fiber for extremely long distances where single-mode is required.
Networking Essentials
IP Address
A numerical label identifying a device on a network.
Networking Essentials
IPv4
32-bit IP address, dotted-decimal format (e.g., 192.168.1.1).
Networking Essentials
IPv6
128-bit IP address, hexadecimal format (e.g., 2001:db8::1).
Networking Essentials
Octet
An 8-bit section of an IPv4 address.
Networking Essentials
Subnet Mask
Determines network and host portions of an IPv4 address.
Networking Essentials
Network Portion
Identifies the network an IP address belongs to.
Networking Essentials
Host Portion
Identifies a specific device within a network.
Networking Essentials
IPv4 and IPv6 Addressing Basics
IPv4 is 'four' short numbers. IPv6 is 'six' long hex sections (and more!).
Networking Essentials
IPv4 and IPv6 Addressing Basics
The CCST Networking exam requires you to know the bit lengths of IPv4 (32-bit) and IPv6 (128-bit) addresses and their respective representations (dotted-decimal for IPv4, hexadecimal for IPv6). Pay close attention to the number of octets in IPv4 and hexadecimal segments in IPv6.
Networking Essentials
IPv4 and IPv6 Addressing Basics
Confusing the format of IPv4 (dotted-decimal) with IPv6 (hexadecimal).
Networking Essentials
IPv4 and IPv6 Addressing Basics
Forgetting that a subnet mask defines the network and host parts of an IPv4 address.
Networking Essentials
IPv4 and IPv6 Addressing Basics
Thinking that IPv6 is just a longer version of IPv4; it's a completely different protocol with added features.
Networking Essentials
Access Point (AP)
Device allowing wireless devices to connect to a wired network.
Networking Essentials
IEEE 802.11
Family of standards defining Wi-Fi wireless local area networks.
Networking Essentials
2.4 GHz band
Wireless frequency with longer range, more interference.
Networking Essentials
5 GHz band
Wireless frequency with higher speeds, less interference.
Networking Essentials
Cloud Computing
On-demand delivery of IT resources over the Internet.
Networking Essentials
IaaS
Infrastructure as a Service; virtualized computing resources.
Networking Essentials
SaaS
Software as a Service; ready-to-use software applications.
Networking Essentials
Public Cloud
Cloud services offered over the Internet by third-party providers.
Networking Essentials
Wireless Networking & Cloud Concepts
For Cloud Service Models: 'I P S' - Infrastructure, Platform, Software. Think of it as building a house: IaaS is the foundation, PaaS is the framework, and SaaS is the fully furnished house.
Networking Essentials
Wireless Networking & Cloud Concepts
The exam often tests your understanding of the different IEEE 802.11 standards and their associated frequency bands (2.4 GHz vs. 5 GHz) and typical characteristics (speed, range, interference). For cloud, differentiate clearly between IaaS, PaaS, and SaaS, and the deployment models.
Networking Essentials
Wireless Networking & Cloud Concepts
Confusing the 2.4 GHz and 5 GHz bands regarding their range and speed characteristics.
Networking Essentials
Wireless Networking & Cloud Concepts
Mixing up the definitions of IaaS, PaaS, and SaaS; remember what level of management each provides.
Networking Essentials
Wireless Networking & Cloud Concepts
Assuming all cloud deployments are the same; understanding public, private, and hybrid is key.
Networking Essentials
MAC Address
Unique 48-bit hardware address of a network interface.
Network Access Technologies
Ethernet Frame
Data unit at the data link layer for Ethernet.
Network Access Technologies
MAC Address Table
Table used by switches to map MACs to ports.
Network Access Technologies
UTP
Unshielded Twisted Pair, common copper Ethernet cable.
Network Access Technologies
Ethernet & Switching Fundamentals
MAC addresses are like a 'Mail Address Code' for your network card, always unique, telling the switch exactly where to deliver the data package.
Network Access Technologies
Ethernet & Switching Fundamentals
The exam often tests your understanding of MAC addresses (48-bit, hexadecimal, unique to NIC) and how switches use them (MAC address table, forwarding decisions). Pay attention to the difference between a hub and a switch.
Network Access Technologies
Ethernet & Switching Fundamentals
Confusing MAC addresses with IP addresses (MACs are Layer 2 hardware addresses, IPs are Layer 3 logical addresses).
Network Access Technologies
Ethernet & Switching Fundamentals
Believing hubs and switches perform the same function (switches are intelligent, hubs are not).
Network Access Technologies
Ethernet & Switching Fundamentals
Underestimating the impact of duplex mismatches on network performance.
Network Access Technologies
VLAN
A logical grouping of network devices independent of physical location.
Network Access Technologies
Access Port
A switch port configured for a single VLAN, connects to end devices.
Network Access Technologies
Trunk Port
A switch port carrying traffic for multiple VLANs, connects switches/routers.
Network Access Technologies
VLAN ID
A unique number (1-4094) identifying a specific VLAN.
Network Access Technologies
802.1Q
IEEE standard for VLAN tagging on Ethernet frames on trunk links.
Network Access Technologies
Broadcast Domain
A network segment where all devices receive broadcast frames.
Network Access Technologies
Inter-VLAN Routing
Process of routing traffic between different VLANs using a Layer 3 device.
Network Access Technologies
VLANs: Virtual LANs Explained
VLANs are like 'Virtual Lanes' on a highway. Each lane (VLAN) keeps different types of cars (traffic) separate, even though they're on the same road (physical switch).
Network Access Technologies
VLANs: Virtual LANs Explained
On the CCST Networking exam, you must know that VLANs segment broadcast domains, enhance security, and improve performance. Be able to distinguish between access ports (single VLAN) and trunk ports (multiple VLANs, 802.1Q tagging).
Network Access Technologies
VLANs: Virtual LANs Explained
Forgetting to configure a router or Layer 3 switch for inter-VLAN communication, leading to devices in different VLANs being unable to communicate.
Network Access Technologies
VLANs: Virtual LANs Explained
Incorrectly assigning ports to VLANs, causing devices to be in the wrong network segment or unable to connect.
Network Access Technologies
VLANs: Virtual LANs Explained
Not configuring trunk ports correctly between switches, preventing VLAN traffic from propagating across the network.
Network Access Technologies
WLAN
Wireless Local Area Network, uses radio waves for connectivity.
Network Access Technologies
SSID
Service Set Identifier, the name of a Wi-Fi network.
Network Access Technologies
WPA3
Latest and most secure Wi-Fi Protected Access security standard.
Network Access Technologies
Infrastructure Mode
WLAN mode where clients connect via an Access Point.
Network Access Technologies
Ad-Hoc Mode
WLAN mode where devices connect directly to each other.
Network Access Technologies
Wireless LANs (WLANs) Concepts
To remember the Wi-Fi security progression, think: 'We Eat Pizza With All The People.' (WEP, WPA, WPA2, WPA3).
Network Access Technologies
Wireless LANs (WLANs) Concepts
The exam often tests your understanding of the different 802.11 standards (a, b, g, n, ac, ax) and their associated frequency bands (2.4 GHz vs. 5 GHz), as well as the progression of Wi-Fi security protocols (WEP, WPA, WPA2, WPA3). Memorize the key characteristics of each.
Network Access Technologies
Wireless LANs (WLANs) Concepts
Assuming disabling SSID broadcast makes a network secure; it only hides the name, not the network itself.
Network Access Technologies
Wireless LANs (WLANs) Concepts
Using outdated security protocols like WEP or WPA (original) instead of WPA2 or WPA3.
Network Access Technologies
Wireless LANs (WLANs) Concepts
Placing an Access Point in a location with high interference or physical obstructions, leading to poor coverage.
Network Access Technologies
WAN
Wide Area Network; connects networks over large geographical areas.
Network Access Technologies
LAN
Local Area Network; connects devices within a limited area.
Network Access Technologies
ISP
Internet Service Provider; company providing internet access.
Network Access Technologies
MPLS
Multiprotocol Label Switching; routes network traffic using labels.
Network Access Technologies
SD-WAN
Software-Defined WAN; manages multiple WAN connections via software.
Network Access Technologies
Latency
Delay before data transfer begins; higher in WANs.
Network Access Technologies
CSU/DSU
Channel Service Unit/Data Service Unit; interfaces digital lines.
Network Access Technologies
WAN Concepts and Technologies
WAN: 'W'ide 'A'rea 'N'etwork. Think of it as 'W'orld 'A'ccess 'N'etwork – connecting across the globe!
Network Access Technologies
WAN Concepts and Technologies
The CCST Networking exam expects you to distinguish between LAN and WAN characteristics, and identify common WAN technologies like MPLS and SD-WAN. Look for keywords like 'geographical distance,' 'carrier services,' and 'connecting multiple sites' to identify WAN-related questions.
Network Access Technologies
WAN Concepts and Technologies
Confusing LAN and WAN characteristics, especially regarding ownership and geographical scope.
Network Access Technologies
WAN Concepts and Technologies
Assuming all WAN connections offer the same speed and reliability.
Network Access Technologies
WAN Concepts and Technologies
Forgetting that WANs often involve third-party service providers and not just internal equipment.
Network Access Technologies
Routing Table
A database on a router storing paths to network destinations.
IP Connectivity & Routing
Next Hop
The next router in the path to a packet's final destination.
IP Connectivity & Routing
Static Route
A manually configured route entry in a router's routing table.
IP Connectivity & Routing
Dynamic Route
A route learned automatically via routing protocols.
IP Connectivity & Routing
Default Route
A 'route of last resort' for packets with no specific route match.
IP Connectivity & Routing
Metric
A value used to determine the best path among multiple routes.
IP Connectivity & Routing
Routing Concepts: How Data Finds Its Way
R.O.U.T.E.R.S.: Reads Outgoing Unicast Traffic, Every Route Sends.
IP Connectivity & Routing
Routing Concepts: How Data Finds Its Way
The CCST Networking exam expects you to know the fundamental purpose of a router, how it uses a routing table, and the difference between static and dynamic routing. Keywords to look for include 'forwarding decisions,' 'best path,' and 'next hop.'
IP Connectivity & Routing
Routing Concepts: How Data Finds Its Way
Confusing routing (inter-network) with switching (intra-network). Routers work at Layer 3 (Network), switches at Layer 2 (Data Link).
IP Connectivity & Routing
Routing Concepts: How Data Finds Its Way
Assuming a router automatically knows all networks; it only knows what's in its routing table or what it learns via protocols.
IP Connectivity & Routing
Routing Concepts: How Data Finds Its Way
Forgetting that a default route is crucial for reaching unknown destinations, especially the internet.
IP Connectivity & Routing
Routing Protocol
Rules for routers to exchange path info.
IP Connectivity & Routing
Autonomous System (AS)
Group of networks under one admin.
IP Connectivity & Routing
IGP (Interior Gateway Protocol)
Routes within an Autonomous System.
IP Connectivity & Routing
EGP (Exterior Gateway Protocol)
Routes between Autonomous Systems.
IP Connectivity & Routing
OSPF
Link-state IGP, uses Dijkstra's algorithm.
IP Connectivity & Routing
Introduction to IP Routing Protocols
IGP is 'In-Group Protocol' (within an AS). EGP is 'External Group Protocol' (between ASes).
IP Connectivity & Routing
Introduction to IP Routing Protocols
Memorize the distinction between IGPs and EGPs. OSPF and EIGRP are IGPs; BGP is the primary EGP. The exam often asks about their purpose and where they operate (within vs. between ASes).
IP Connectivity & Routing
Introduction to IP Routing Protocols
Confusing static routes with dynamic routes; static routes are manual, dynamic are automatic.
IP Connectivity & Routing
Introduction to IP Routing Protocols
Mixing up IGPs and EGPs; remember where each type operates.
IP Connectivity & Routing
Introduction to IP Routing Protocols
Believing all routing protocols use the same metric; OSPF uses cost, RIP uses hop count, EIGRP uses bandwidth/delay.
IP Connectivity & Routing
NAT
Network Address Translation, remapping IP addresses.
IP Connectivity & Routing
PAT
Port Address Translation, many-to-one NAT using port numbers.
IP Connectivity & Routing
Inside Local
Private IP of an internal device.
IP Connectivity & Routing
Inside Global
Public IP mapped to an internal device.
IP Connectivity & Routing
Outside Global
Public IP of an external destination.
IP Connectivity & Routing
Private IP Address
Non-routable IP address for internal networks.
IP Connectivity & Routing
Public IP Address
Globally unique, routable IP address.
IP Connectivity & Routing
Understanding Network Address Translation (NAT)
Remember 'PAT saves your NAT' – Port Address Translation is the most common way NAT saves public IP addresses.
IP Connectivity & Routing
Understanding Network Address Translation (NAT)
The CCST Networking exam expects you to know the three main types of NAT (Static, Dynamic, PAT) and their primary use cases. Pay close attention to the terms 'inside local,' 'inside global,' and 'outside global' as they describe the addresses at different points in the translation process.
IP Connectivity & Routing
Understanding Network Address Translation (NAT)
Confusing Dynamic NAT with PAT: Dynamic NAT uses a pool of public IPs, while PAT uses a single public IP with port numbers.
IP Connectivity & Routing
Understanding Network Address Translation (NAT)
Incorrectly assuming NAT provides complete security: While it hides internal IPs, NAT is not a firewall and doesn't inspect packet content.
IP Connectivity & Routing
Understanding Network Address Translation (NAT)
Forgetting that Static NAT is for inbound connections: It allows external devices to initiate connections to an internal server.
IP Connectivity & Routing
Default Gateway
Router's IP address for traffic outside the local network.
IP Connectivity & Routing
DNS Server
Translates domain names to IP addresses.
IP Connectivity & Routing
DHCP
Automatically assigns IP addresses and network settings.
IP Connectivity & Routing
Static IP
Manually configured, unchanging IP address.
IP Connectivity & Routing
Dynamic IP
Automatically assigned IP address via DHCP.
IP Connectivity & Routing
Ping
Utility to test network reachability to a host.
IP Connectivity & Routing
Configuring Basic IP Connectivity
To remember the core IP settings, think 'IP, Sub, Gate, DNS!' (IP Address, Subnet Mask, Default Gateway, DNS Server).
IP Connectivity & Routing
Configuring Basic IP Connectivity
The CCST Networking exam will test your ability to identify and interpret IP configuration parameters (IP address, subnet mask, default gateway, DNS) and to choose the correct command-line tools (`ipconfig`, `ifconfig`, `ping`, `tracert`/`traceroute`) for verification and basic troubleshooting across different operating systems.
IP Connectivity & Routing
Configuring Basic IP Connectivity
Forgetting to configure a default gateway, preventing communication outside the local network.
IP Connectivity & Routing
Configuring Basic IP Connectivity
Using an incorrect subnet mask, leading to communication failures even with correct IP addresses.
IP Connectivity & Routing
Configuring Basic IP Connectivity
Assigning duplicate static IP addresses, causing conflicts and network instability.
IP Connectivity & Routing
Configuring Basic IP Connectivity
Not checking DNS server settings when experiencing issues with accessing websites by name.
IP Connectivity & Routing
DNS
System translating domain names to IP addresses.
Essential IP Services
Domain Name
Human-readable name for a website or service.
Essential IP Services
DHCP Lease
Temporary assignment period for an IP address.
Essential IP Services
DHCP and DNS: Core Network Services
For DHCP's DORA process, remember: 'Don't Open Rotten Apples' - Discover, Offer, Request, Acknowledge.
Essential IP Services
DHCP and DNS: Core Network Services
The CCST Networking exam expects you to know the DORA process for DHCP (Discover, Offer, Request, Acknowledge) and the fundamental role of DNS in name resolution. Be prepared to identify symptoms of misconfigured DHCP or DNS.
Essential IP Services
DHCP and DNS: Core Network Services
Forgetting that DHCP also provides the default gateway and DNS server addresses, not just the IP.
Essential IP Services
DHCP and DNS: Core Network Services
Confusing the roles of DHCP and DNS; DHCP assigns IPs, DNS resolves names.
Essential IP Services
DHCP and DNS: Core Network Services
Assuming a device with a static IP address will still get its DNS settings from DHCP (it won't, they must be manually configured).
Essential IP Services
NTP
Network Time Protocol, synchronizes device clocks.
Essential IP Services
Stratum
NTP hierarchy level for time sources.
Essential IP Services
Syslog
Standard for sending event messages to a server.
Essential IP Services
Facility
Syslog field indicating message source (e.g., kernel).
Essential IP Services
Severity Level
Syslog field indicating message importance (e.g., error).
Essential IP Services
NTP Server
Provides time synchronization to clients.
Essential IP Services
Syslog Server
Centralized collector for log messages.
Essential IP Services
NTP and Syslog for Network Management
NTP: 'N'ice 'T'ime 'P'recisely. Syslog: 'S'end 'Y'our 'S'ystem 'Log's.
Essential IP Services
NTP and Syslog for Network Management
The exam expects you to know the purpose of NTP (time synchronization) and Syslog (centralized logging). Be familiar with common Cisco commands like 'ntp server' and 'logging host' and the concept of Syslog severity levels.
Essential IP Services
NTP and Syslog for Network Management
Forgetting to configure NTP authentication, leaving your network vulnerable to time manipulation.
Essential IP Services
NTP and Syslog for Network Management
Not setting appropriate Syslog severity levels, leading to either too many irrelevant logs or missing critical events.
Essential IP Services
NTP and Syslog for Network Management
Failing to configure redundant NTP servers, causing time drift if the primary server becomes unavailable.
Essential IP Services
SNMP Manager
Software that collects and processes data from SNMP agents.
Essential IP Services
SNMP Agent
Software on a network device that collects and sends MIB data.
Essential IP Services
MIB
Management Information Base; a database of network device variables.
Essential IP Services
OID
Object Identifier; unique address for a specific MIB variable.
Essential IP Services
SNMP Trap
An unsolicited alert sent by an agent to a manager about an event.
Essential IP Services
QoS
Quality of Service; prioritizes network traffic for better performance.
Essential IP Services
DSCP
Differentiated Services Code Point; marks IP packets for QoS priority.
Essential IP Services
Queuing
Mechanism to manage packet buffers and transmission order.
Essential IP Services
SNMP for Monitoring & QoS for Performance
SNMP: 'See N' Monitor Performance' – S-N-M-P helps you see and monitor your network's performance. QoS: 'Quality Over Speed' – QoS makes sure quality is prioritized, even if it means some things aren't as fast.
Essential IP Services
SNMP for Monitoring & QoS for Performance
For SNMP, remember the three versions (v1, v2c, v3) and their security features (v3 adds authentication and encryption). For QoS, know the purpose of classification, marking (DSCP/CoS), and queuing. You might be asked to identify which QoS mechanism handles specific traffic types.
Essential IP Services
SNMP for Monitoring & QoS for Performance
Confusing SNMP Get/Set operations with Traps: Get/Set are initiated by the manager, Traps are initiated by the agent.
Essential IP Services
SNMP for Monitoring & QoS for Performance
Believing QoS guarantees bandwidth: QoS prioritizes, but cannot create more bandwidth than physically available.
Essential IP Services
SNMP for Monitoring & QoS for Performance
Forgetting that SNMPv3 provides the highest level of security for network management data.
Essential IP Services
APIPA
Automatic Private IP Addressing; self-assigned IP when DHCP fails.
Essential IP Services
nslookup
Command-line tool to query DNS servers for name resolution.
Essential IP Services
dig
Domain Information Groper; advanced command-line tool for DNS queries.
Essential IP Services
ipconfig
Windows command to display/configure IP network interface settings.
Essential IP Services
ifconfig
Linux/Unix command to display/configure network interface settings.
Essential IP Services
traceroute
Displays the path and hop-by-hop latency to a destination.
Essential IP Services
Troubleshooting Common IP Service Issues
To troubleshoot, remember 'I Eat Tasty Apples In Vermont Daily': Identify, Establish, Test, Action, Implement, Verify, Document.
Essential IP Services
Troubleshooting Common IP Service Issues
The CCST Networking exam expects you to know common port numbers for key services: DHCP (UDP 67/68), DNS (UDP 53), NTP (UDP 123), and Syslog (UDP 514). Memorize these for quick identification of firewall or service configuration issues.
Essential IP Services
Troubleshooting Common IP Service Issues
Jumping to conclusions without gathering enough information or systematically testing hypotheses.
Essential IP Services
Troubleshooting Common IP Service Issues
Making multiple changes at once, making it impossible to determine which change fixed or broke something.
Essential IP Services
Troubleshooting Common IP Service Issues
Forgetting to check basic connectivity (cables, link lights, ping) before investigating complex service issues.
Essential IP Services
Confidentiality
Ensuring data is accessible only to authorized individuals.
Security Foundations
Integrity
Ensuring data is accurate, complete, and unaltered.
Security Foundations
Availability
Ensuring authorized users can access resources when needed.
Security Foundations
Threat
A potential danger that could exploit a vulnerability.
Security Foundations
Vulnerability
A weakness in a system that can be exploited by a threat.
Security Foundations
Risk
The potential for loss or damage from a threat exploiting a vulnerability.
Security Foundations
Least Privilege
Granting minimum necessary permissions for a task.
Security Foundations
Defense in Depth
Employing multiple layers of security controls.
Security Foundations
Core Security Concepts & Principles
CIA: 'C' for 'Confidential' (secret), 'I' for 'Intact' (unchanged), 'A' for 'Accessible' (always there).
Security Foundations
Core Security Concepts & Principles
The exam frequently tests your understanding of the CIA triad, so be prepared to identify examples of each principle. Also, know the difference between a threat, vulnerability, and risk.
Security Foundations
Core Security Concepts & Principles
Confusing a threat with a vulnerability (a threat is *what* can happen, a vulnerability is *how* it can happen).
Security Foundations
Core Security Concepts & Principles
Overlooking the 'Availability' aspect of the CIA triad; it's just as critical as the other two.
Security Foundations
Core Security Concepts & Principles
Believing a single security control is sufficient; remember 'Defense in Depth'.
Security Foundations
Malware
Malicious software designed to harm or gain unauthorized access.
Security Foundations
Phishing
Fraudulent messages to trick users into revealing sensitive data.
Security Foundations
Ransomware
Malware that encrypts data and demands payment for decryption.
Security Foundations
Social Engineering
Manipulating people to divulge information or perform actions.
Security Foundations
DoS/DDoS
Overwhelming a system to make it unavailable to users.
Security Foundations
Man-in-the-Middle
Attacker intercepts and potentially alters communication.
Security Foundations
Zero-day Exploit
Attack exploiting a vulnerability before a patch exists.
Security Foundations
Identifying Common Security Threats
Think of 'MRS. VAN' for common threats: Malware, Ransomware, Social engineering, Viruses, Attacks (network), and Nuisances (adware/spyware).
Security Foundations
Identifying Common Security Threats
The CCST Networking exam often presents scenarios where you must identify the type of attack based on its characteristics. Pay close attention to keywords like 'self-replicating' (worm), 'disguised as legitimate' (Trojan), 'demands payment' (ransomware), and 'tricks user' (social engineering). Memorize the core definitions.
Security Foundations
Identifying Common Security Threats
Confusing a virus with a worm: Viruses need a host program; worms are self-contained and self-replicating.
Security Foundations
Identifying Common Security Threats
Underestimating social engineering: Many breaches start with human error, not technical exploits.
Security Foundations
Identifying Common Security Threats
Ignoring basic hygiene: Failing to patch software or use strong passwords leaves easy entry points for attackers.
Security Foundations
Firewall
Device/software controlling network traffic based on security rules.
Security Foundations
IDS (Intrusion Detection System)
Monitors network for malicious activity and alerts.
Security Foundations
IPS (Intrusion Prevention System)
Detects and actively blocks malicious network activity.
Security Foundations
VPN (Virtual Private Network)
Creates a secure, encrypted connection over a public network.
Security Foundations
Encryption
Process of converting data into a code to prevent unauthorized access.
Security Foundations
Anti-malware
Software protecting against viruses, worms, and other malicious code.
Security Foundations
ACL (Access Control List)
Rules on routers/switches to filter network traffic.
Security Foundations
Network Security Technologies Overview
To remember the core functions: 'F-I-P-V': Firewall Filters, IDS Identifies, IPS Prevents, VPN Virtuously Protects.
Security Foundations
Network Security Technologies Overview
The exam often asks about the primary function of specific security devices. Memorize that firewalls filter traffic, IDS detects, IPS prevents, and VPNs secure remote connections via encryption.
Security Foundations
Network Security Technologies Overview
Confusing IDS (detection only) with IPS (detection and prevention).
Security Foundations
Network Security Technologies Overview
Underestimating the importance of encryption for data in transit, especially with VPNs.
Security Foundations
Network Security Technologies Overview
Believing a single security technology, like a firewall, is sufficient for complete network protection.
Security Foundations
Access Control List (ACL)
List of rules to filter network traffic on routers/switches.
Security Foundations
Pre-Shared Key (PSK)
Shared secret phrase used for authentication in WPA/WPA2.
Security Foundations
Multi-Factor Authentication (MFA)
Requires multiple verification methods for access.
Security Foundations
Hardening
Process of securing a system by reducing its attack surface.
Security Foundations
SSID Broadcast
Wireless access point advertising its network name.
Security Foundations
Implementing Basic Network Security
F.A.W.P.S. (Firewalls, ACLs, Wireless, Passwords, Securing devices) - Remember these five pillars for basic network security!
Security Foundations
Implementing Basic Network Security
The CCST Networking exam often asks about the purpose of specific security technologies. Remember that a firewall's primary role is traffic filtering at the network perimeter, and ACLs provide granular control on routers/switches. WPA3 is the most secure wireless standard.
Security Foundations
Implementing Basic Network Security
Using default passwords on network devices, leaving them vulnerable.
Security Foundations
Implementing Basic Network Security
Not updating firmware on routers and switches, missing critical security patches.
Security Foundations
Implementing Basic Network Security
Using outdated or weak wireless security protocols like WEP or WPA.
Security Foundations
Implementing Basic Network Security
Failing to implement strong password policies for user accounts.
Security Foundations
Network Automation
Using software to manage and operate network devices and services.
Automation & Programmability
Configuration Drift
Inconsistent configurations across devices that should be identical.
Automation & Programmability
Orchestration
Coordinating multiple automated tasks across different systems.
Automation & Programmability
Idempotence
A task that produces the same result regardless of how many times it runs.
Automation & Programmability
Programmability
The ability to control network devices using code or scripts.
Automation & Programmability
API
Application Programming Interface; allows software to interact.
Automation & Programmability
Network Automation Concepts
Think 'ACE' for Automation Benefits: Agility, Consistency, Efficiency. It helps you remember the core advantages!
Automation & Programmability
Network Automation Concepts
The CCST Networking exam expects you to understand the fundamental 'why' and 'what' of network automation, focusing on its benefits like efficiency, consistency, and reduced human error. Look for questions contrasting manual vs. automated approaches.
Automation & Programmability
Network Automation Concepts
Believing automation replaces all human roles; it augments them.
Automation & Programmability
Network Automation Concepts
Trying to automate everything at once instead of starting small.
Automation & Programmability
Network Automation Concepts
Ignoring the need for proper testing of automation scripts before deployment.
Automation & Programmability
Software-Defined Networking (SDN)
Network architecture separating control and data planes.
Automation & Programmability
Control Plane
The 'brain' of the network; makes forwarding decisions.
Automation & Programmability
Data Plane
Forwards network traffic based on control plane instructions.
Automation & Programmability
SDN Controller
Centralized software managing network resources and policies.
Automation & Programmability
OpenFlow
A protocol for controller-device communication in SDN.
Automation & Programmability
Northbound API
Interface between SDN applications and the controller.
Automation & Programmability
Southbound API
Interface between the SDN controller and network devices.
Automation & Programmability
Software-Defined Networking (SDN) Basics
Imagine a 'Chef' (Control Plane) in a kitchen (Network). The Chef decides the recipe (traffic flow) and tells the 'Cooks' (Data Plane devices) what to do. The 'Waiters' (Application Plane) take orders from customers (users/apps) and tell the Chef. SDN is like giving the Chef a super-smart tablet to manage all the cooks and recipes instantly!
Automation & Programmability
Software-Defined Networking (SDN) Basics
The CCST Networking exam expects you to know the fundamental separation of control and data planes, and the role of the SDN controller. Be able to identify OpenFlow as a southbound protocol. Keywords to spot include 'centralized control', 'programmability', and 'network abstraction'.
Automation & Programmability
Software-Defined Networking (SDN) Basics
Confusing the control plane with the data plane: Remember, control is 'brain', data is 'muscle'.
Automation & Programmability
Software-Defined Networking (SDN) Basics
Thinking OpenFlow is the ONLY southbound protocol: It's important, but not exclusive.
Automation & Programmability
Software-Defined Networking (SDN) Basics
Believing SDN eliminates all network devices: It just changes how they're managed.
Automation & Programmability
RESTful API
API style using HTTP methods for stateless communication.
Automation & Programmability
HTTP Methods
Actions like GET, POST, PUT, DELETE for web interactions.
Automation & Programmability
JSON
JavaScript Object Notation; lightweight data-interchange format.
Automation & Programmability
XML
Extensible Markup Language; markup language for data storage.
Automation & Programmability
Endpoint
A specific URL where an API can be accessed.
Automation & Programmability
Stateless
Each API request contains all info; no session context.
Automation & Programmability
Understanding APIs in Networking
Remember 'REST' for 'Really Easy Standard Transfer' – it highlights its simplicity and widespread use compared to older methods.
Automation & Programmability
Understanding APIs in Networking
The exam expects you to recognize APIs as a core component of network programmability and automation. Focus on RESTful APIs, HTTP methods (GET, POST, PUT, DELETE), and data formats like JSON/XML. Understand that APIs allow programmatic interaction with network devices and services.
Automation & Programmability
Understanding APIs in Networking
Confusing an API with a GUI (Graphical User Interface); an API is for programmatic interaction, not human interaction.
Automation & Programmability
Understanding APIs in Networking
Assuming all APIs are RESTful; while common, other types like SOAP exist.
Automation & Programmability
Understanding APIs in Networking
Believing APIs are only for configuration; they are also crucial for monitoring, troubleshooting, and data collection.
Automation & Programmability
Script
A small program designed to automate tasks.
Automation & Programmability
Automation
Using technology to perform tasks with minimal human intervention.
Automation & Programmability
Python
A popular, high-level programming language for network scripting.
Automation & Programmability
Variable
A named storage location for data within a script.
Automation & Programmability
Loop
A programming construct that repeats a block of code multiple times.
Automation & Programmability
Conditional Statement
Allows a script to make decisions based on conditions (e.g., if-else).
Automation & Programmability
Bash
A command language interpreter for Unix-like operating systems.
Automation & Programmability
Introduction to Network Scripting
To remember the benefits of scripting, think 'E.A.S.Y.': Efficiency, Accuracy, Speed, Yield (more time for other tasks).
Automation & Programmability
Introduction to Network Scripting
The CCST Networking exam expects you to understand the *purpose* and *benefits* of network scripting, not to write complex scripts. Focus on concepts like automation, efficiency, and consistency. Keywords to look for are 'automate,' 'streamline,' 'reduce manual effort,' and 'consistency.'
Automation & Programmability
Introduction to Network Scripting
Thinking you need to be a master programmer to understand network scripting concepts for the exam.
Automation & Programmability
Introduction to Network Scripting
Underestimating the time-saving benefits of scripting in real-world scenarios.
Automation & Programmability
Introduction to Network Scripting
Confusing scripting with full-blown software development; scripting is generally for smaller, task-specific automation.
Automation & Programmability