CCENT and ICND1 were retired as separate Cisco certification exams in 2020. This ten-week plan is a historical study structure; candidates pursuing current Cisco credentials should use the active CCNA 200-301 exam objectives instead. The CCENT certification, which stands for Cisco Certified Entry Networking Technician, was the entry-level credential in Cisco’s networking certification track and was achieved by passing the ICND1 examination. Although Cisco retired the CCENT designation in 2020 and replaced it with updated certification pathways, the ICND1 curriculum remains one of the most thorough and respected foundations in networking education. The concepts it covers, including IP addressing, routing, switching, and network security fundamentals, are directly applicable to modern networking roles and continue to appear in updated Cisco certification exams.
For anyone beginning a career in networking or IT infrastructure, working through the ICND1 material systematically offers something that many short courses and bootcamps fail to deliver: a genuine conceptual foundation that supports long-term professional growth. Professionals who invest the time to truly absorb this curriculum find that advanced topics in routing protocols, network security, and cloud networking become significantly more approachable. The credential itself may have been retired, but the knowledge it represents remains as relevant and valuable as ever in the modern technology landscape.
How to Approach a 10-Week Study Schedule Effectively
A ten-week plan can still serve as a sensible sequence for developing foundational switching and routing skills, even though Cisco retired the ICND1/CCENT exam in February 2020. Treat each week as a practical learning unit, not as a countdown to a test appointment that no longer exists. Specify the topics you intend to understand, the topology or command output you will work with, and the evidence that confirms you learned the skill. Candidates seeking a credential should follow Cisco’s current CCNA 200-301 objectives separately because the former ICND1 blueprint is not a substitute for the current exam topics.
Consistent practice helps more than occasional intensive reading. A learner with a regular short lab session can revisit routing-table interpretation, subnet masks, switch behavior and command-line troubleshooting until these actions become familiar. Before beginning week one, inventory the networking topics you already know and the ones that are still unclear. Adapt the proposed ten-week cadence around those gaps rather than treating a fixed study-hour commitment as a proven success formula. This plan is about learning durable networking skills, not passing a discontinued test.
Week One: Network Fundamentals and the OSI Model
The first week of your study plan should be devoted entirely to networking fundamentals, with particular emphasis on the OSI model and the TCP/IP model. These frameworks describe how data moves across a network by dividing the communication process into discrete layers, each responsible for a specific function. The OSI model has seven layers: physical, data link, network, transport, session, presentation, and application. The TCP/IP model condenses these into four layers but describes the same underlying communication process.
Understanding these models is not merely a matter of memorizing layer names and numbers. You should be able to describe what happens at each layer, identify which protocols and technologies operate at each layer, and explain how data is encapsulated as it moves down the stack and de-encapsulated as it moves up on the receiving end. This process of encapsulation, where each layer adds its own header information before passing data to the layer below, is fundamental to diagnosing network problems and understanding how devices like switches, routers, and firewalls interact with network traffic.
Week Two: IP Addressing and Binary Arithmetic
IP addressing is arguably the most technically demanding topic in the ICND1 curriculum for candidates who are new to networking, and it deserves a full week of dedicated focus. IPv4 addresses are 32-bit numbers represented in dotted decimal notation, divided into four octets each ranging from 0 to 255. Every device on a network must have a unique IP address within its subnet, and understanding how addresses are structured, how subnet masks define network and host portions, and how to calculate valid host ranges within a subnet are all skills that the exam tests directly and repeatedly.
Binary arithmetic is the underlying language of IP addressing, and you cannot truly understand subnetting without being comfortable converting between decimal and binary representations. Spend time each day during week two practicing binary conversion until it becomes second nature. From there, move into subnet mask calculations, learning how to determine the network address, broadcast address, and valid host range for any given combination of IP address and subnet mask. Variable Length Subnet Masking, or VLSM, allows you to divide an address space into subnets of different sizes to match the actual requirements of different network segments, and it is a topic that will follow you throughout your entire networking career.
Week Three: Subnetting Practice and Address Planning
Week three should build directly on the binary and subnetting foundation established in week two, shifting from individual subnet calculations to practical address planning across a larger network. Address planning involves taking a given block of IP addresses and dividing it into multiple subnets that meet specific requirements, such as supporting a certain number of hosts per subnet while wasting as few addresses as possible. This type of problem appears frequently in exam questions and requires both calculation accuracy and logical thinking about how to allocate address space efficiently.
Practice is the only reliable way to develop subnetting speed and accuracy. Work through as many subnetting problems as you can find during week three, starting with straightforward examples and progressively tackling more complex scenarios involving VLSM and classless inter-domain routing notation. Classless inter-domain routing, commonly written as CIDR, expresses a subnet mask as a prefix length appended to the IP address, such as 192.168.1.0/24, and is the notation used in most modern networking contexts. By the end of week three, you should be able to subnet quickly and accurately under timed conditions, as this skill will be tested directly and will also support your ability to configure and troubleshoot devices in later weeks.
Week Four: Ethernet Switching and Layer Two Concepts
Switching is the technology that moves data within a local area network, and week four should be devoted to building a thorough understanding of how Ethernet switches operate at Layer 2 of the network model. A switch learns the MAC addresses of connected devices by examining the source address of incoming frames and recording the association between that address and the port on which the frame arrived. This information is stored in the MAC address table, also called the CAM table, and is used to make forwarding decisions for subsequent frames.
Spanning Tree Protocol is one of the most important Layer 2 topics in the ICND1 curriculum. STP prevents switching loops, which occur when redundant paths between switches cause frames to circulate endlessly through the network, consuming bandwidth and causing broadcast storms. STP achieves this by placing redundant ports into a blocking state, allowing traffic to flow through only one active path at a time while keeping the redundant path available as a backup in case the primary path fails. You should understand the STP election process, the roles of root bridge, designated port, and root port, and how the protocol responds to topology changes in the network.
Week Five: Virtual LANs and Inter-VLAN Routing
Virtual LANs, or VLANs, allow a single physical switch to be logically divided into multiple isolated broadcast domains, each behaving as if it were a separate network. VLANs are one of the most widely used features in enterprise switching environments because they allow network administrators to group devices by function, department, or security requirement regardless of their physical location in the building. A device in one VLAN cannot communicate directly with a device in another VLAN without passing through a Layer 3 device such as a router or a Layer 3 switch.
Inter-VLAN routing permits communication between distinct VLANs through a Layer 3 device or switch. One teaching topology uses a router with separate routed interfaces; another uses an IEEE 802.1Q trunk and separate subinterfaces, commonly called router-on-a-stick. A multilayer switch can alternatively perform the Layer 3 function through switched virtual interfaces. Compare the configuration and forwarding path in each design, checking the VLAN membership, trunk tagging and interface addresses. These are useful hands-on fundamentals regardless of the old ICND1 examination’s retirement; follow the active CCNA scope where certification preparation is intended.
Week Six: Routing Fundamentals and Static Routes
Routing is the process by which packets are forwarded between different networks, and week six marks the transition in your study plan from Layer 2 switching concepts to Layer 3 routing. A router maintains a routing table that contains entries describing how to reach various network destinations. When a packet arrives at a router, the router examines the destination IP address, looks up the best matching entry in the routing table, and forwards the packet out the appropriate interface toward its destination.
Static routing involves manually configuring routing table entries on a router, specifying the destination network, the subnet mask, and the next-hop IP address or exit interface. Static routes are predictable, simple to configure, and appropriate for small networks or specific use cases such as default routes and stub network connections. A default route, often written as 0.0.0.0/0, matches any destination not covered by a more specific routing table entry and is used to forward traffic toward a gateway of last resort. Spend time during week six configuring static routes and default routes on simulated routers, verifying connectivity with ping and traceroute commands, and tracing the path packets take through a multi-router topology.
Week Seven: Dynamic Routing With RIP and OSPF Basics
Dynamic routing protocols allow routers to automatically discover routes to remote networks and adapt to topology changes without requiring manual reconfiguration. Week seven should cover the two dynamic routing protocols most relevant to the ICND1 curriculum: Routing Information Protocol version 2 and Open Shortest Path First. RIPv2 is a distance-vector protocol that uses hop count as its metric, with a maximum hop count of 15, beyond which a destination is considered unreachable. It is a relatively simple protocol suitable for small networks and serves as an excellent introduction to the concept of dynamic routing.
OSPF is a link-state protocol that builds a complete map of the network topology and uses the Dijkstra shortest path first algorithm to calculate the best routes. Unlike RIP, which shares its entire routing table with neighbors at regular intervals, OSPF routers share link-state advertisements that describe their directly connected links. OSPF converges more quickly than RIP, scales to much larger networks, and uses cost based on interface bandwidth as its metric rather than hop count. For the ICND1 exam, you should understand basic OSPF configuration in a single area, the concept of the designated router and backup designated router election on multi-access networks, and how to verify OSPF neighbor relationships and routing table entries.
Week Eight: WAN Technologies and Basic Security Concepts
Wide area network technologies connect geographically dispersed sites and have evolved significantly over the decades from leased lines and Frame Relay to modern broadband and software-defined WAN solutions. For the ICND1 curriculum, you should be familiar with Point-to-Point Protocol, which is used to establish direct connections between two routers over serial links, and with the concept of encapsulation as it applies to WAN technologies. Digital subscriber line and cable broadband connections are also covered at a foundational level, along with the role of the customer premises equipment in connecting a site to a service provider network.
Network security fundamentals form the second half of week eight’s focus. Access control lists are one of the most important security tools in a network administrator’s toolkit, allowing you to permit or deny traffic based on source and destination IP addresses, protocol types, and port numbers. Standard access control lists filter traffic based solely on source IP address, while extended access control lists can filter based on source address, destination address, protocol, and port number. You should be able to write and apply both standard and extended ACLs on Cisco routers, understand the implicit deny at the end of every access control list, and know how placement of an ACL on an interface affects which traffic it filters.
Week Nine: Device Management and IOS Command Line Proficiency
Cisco IOS and IOS XE command-line skills remain important for configuring and diagnosing supported Cisco networking equipment, although syntax and available functions depend on platform and software release. Week nine can cover user EXEC, privileged EXEC and global configuration modes, context-sensitive help, basic interface verification, and the deliberate saving and restoration of configurations. Practice checking the running versus startup configurations and the consequences of a change in an isolated environment. There is no active ICND1 exam appointment for which to rehearse these exact tasks; use a current CCNA blueprint for exam-specific prioritization.
Device management topics include configuring hostnames, passwords, and banners on Cisco devices, securing management access using SSH rather than Telnet, and managing Cisco IOS software images. DHCP configuration on Cisco routers, allowing the router to automatically assign IP addresses to connected devices, is also part of the ICND1 curriculum. Network Time Protocol configuration ensures that devices across the network maintain synchronized clocks, which is important for accurate logging and security event correlation. Spend week nine working through device configuration labs that cover all of these topics, building a consistent configuration workflow that you can execute quickly and accurately under exam conditions.
Week Ten: Review, Troubleshooting, and Skills Assessment
Reserve the final week for consolidation, practical assessment and troubleshooting rather than cramming for the retired ICND1 test. Review the concepts that caused failures in earlier labs, including interpreting subnet masks, routing tables, VLAN assignments, basic ACL rules and interface state. Build a small topology from a blank project and document whether each planned subnet and host can reach the intended destinations. If the outcome differs from expectations, diagnose the cause and verify the correction before moving on.
Use practice questions to check understanding of networking concepts, but do not treat a discontinued ICND1 mock test as a predictor of current Cisco certification performance. For each missed question, identify whether the problem was a misunderstood subnet boundary, a routing policy, switching behavior or an imprecise reading of evidence. Then reproduce the concept in a lawful lab and explain the observed output. For candidates pursuing CCNA 200-301, practice with material aligned to Cisco’s currently published objectives and review the exact appointment policies separately.
Simulation Tools That Accelerate Hands-On Learning
Cisco Packet Tracer can help learners assemble and test small switching and routing topologies without owning physical equipment. Availability and feature coverage depend on the learning platform and version, so verify current access arrangements through Cisco Networking Academy or Skills for All rather than assuming an old ICND1-specific course remains available. Use the tool to compare VLAN isolation, static-route next hops, OSPF neighbor state and simple management controls. Packet Tracer models selected behaviors rather than perfectly reproducing every hardware command and forwarding feature.
GNS3 can provide a more flexible topology laboratory using supported virtual appliances, but running Cisco network images requires legitimate entitlements and compatible compute resources. Do not assume every Cisco IOS image is legally downloadable or that virtual forwarding precisely matches dedicated switching hardware. Select a platform and release suited to the exercise, confirm its documented capabilities, and record the commands and expected outcomes. Physical training equipment can be useful when accessible, but neither buying a used router nor downloading an unlicensed image is a requirement for studying modern networking fundamentals.
How to Stay Motivated Across Ten Weeks of Study
Sustained motivation across a 10-week technical study program requires more than initial enthusiasm. The early weeks of study often feel engaging and productive, but by weeks five and six, when the material becomes more complex and the novelty of starting a new program has worn off, many candidates begin to struggle with consistency. Building accountability into your study routine, whether through a study partner, an online forum, or simply a visible habit tracker on your wall, helps you maintain momentum through the periods when motivation naturally dips.
Connecting the material you are studying to real-world applications makes a significant difference in how engaged you feel with the content. When you configure a VLAN on a simulated switch, remind yourself that this is exactly what a network administrator does when setting up a new department’s devices in an office building. When you calculate subnets, think about the address planning work that network engineers perform every time a new site or product is deployed. Grounding abstract concepts in concrete professional contexts transforms studying from a chore into a meaningful investment in your future capabilities, and that shift in perspective is one of the most powerful motivational tools available to any certification candidate.
Applying Historical ICND1 Topics to Current Networking Skills
Studying the retired ICND1 curriculum and applying the underlying skills represents the beginning of a networking career rather than a destination. The knowledge you have built across these ten weeks provides a foundation that supports continued learning in routing and switching through the CCNA and beyond, in network security through Cisco’s security certification track, and in cloud networking through the growing body of cloud-focused certifications that require strong networking fundamentals. Every advanced networking concept you will encounter in your career connects back to the principles covered in this curriculum.
Professional networking competence involves observing real symptoms, explaining why a route or VLAN behaves as it does, and confirming the outcome of a targeted change. The ten-week sequence is designed to move from foundational concepts toward such operational reasoning; it is not an ICND1 test-preparation promise. Learners who later choose to pursue the current Cisco CCNA can use these practical foundations while completing the additional domains and exam-specific requirements listed in the current 200-301 objectives.
Completing ten weeks of structured networking practice alongside work and family obligations requires flexibility. If one week is disrupted, revisit the previous lab and continue at a pace that supports understanding rather than rushing to satisfy an arbitrary deadline. Track progress by completed subnet plans, stable routing adjacencies, documented device configurations and correctly diagnosed failures. Successful completion is evidence of growing practical capability; it does not confer the retired CCENT credential, and active Cisco certification requires passing an exam that Cisco currently offers.
