Subject-matter expert
Jeff Kish
Jeff Kish has over 15 years of IT experience, focusing mainly on core infrastructure and data center technologies. He holds a number of Cisco certifications, including CCIEs in Routing and Switching and Data Center. He also focuses on network programmability and software-defined networking. Jeff has a degree in electrical engineering. When he’s not creating training, Jeff enjoys spending time with his family, writing fantasy novels, coding video games, and participating in the occasional Super Smash Bros tournament.
Credentials
Certifications Jeff Kish holds
Vendor-issued credentials Jeff holds — the hands-on IT background behind the courses your team will train on.
- Cisco CCIE Routing and Switching
- Cisco CCIE Data Center
- Cisco CCNP Data Center
- Cisco CCNP Routing and Switching
- Cisco CCDP
- Cisco CCIP
- Cisco CCNA Data Center
- CCNA Routing and Switching
- Cisco CCDA
- Cisco DCUCD Specialist
- Cisco DCUFD Specialist
Training coverage
Courses that carry Jeff Kish's expertise into your team plan
Use these courses as proof of coverage for the roles and technologies your team needs to support.
Courses Jeff Kish teaches
22 courses
Cisco
300-420 ENSLD
Learn to design enterprise networks that are resilient, secure, and ready for hybrid and cloud environments with this CCNP Enterprise course. This 300-420 ENSLD v1.1 training reflects Cisco’s updated exam. It focuses on how modern enterprise networks are actually designed, covering routing and addressing strategies, high-availability campus design, SD-WAN and cloud connectivity, multicast and QoS, plus automation and telemetry concepts. Don't just memorize configurations. Practice making the kinds of design decisions engineers face when building campus and WAN networks that connect cleanly to cloud services.
Cisco
CCNA Automation
Accelerate your networking career with the new CCNA Automation certification (formerly the Cisco DevNet Associate 200-901 DEVASC). Designed for DevOps engineers and IT pros, this training aligns with 200-901 CCNAAUTO v1.1 exam objectives to help you modernize your infrastructure skills. Get hands-on with Cisco APIs, automation frameworks, and Python scripts. Plus, stay ahead with AI-assisted coding using tools like Cursor to boost your deployment speed. Whether you’re moving into AI-driven networking or updating your DevNet skills, this course can help you bridge the gap between manual CLI and dynamic, programmable networks.
Cisco
CCNP Data Center
Learn to master enterprise data center troubleshooting in this CCNP Data Center course. Data centers are growing more complex and automation is taking over day-to-day operations. Engineers have to diagnose and resolve messy issues that span networking, compute, storage, and management systems. This 300-615 DCIT v1.2 course helps you build hands-on experience with troubleshooting modern data center environments, with an emphasis on centralized management, VXLAN EVPN, Fibre Channel services, and automation-driven workflows. Strengthen your ability to find root causes, manage programmable infrastructure, and prepare for the Troubleshooting Cisco Data Center Infrastructure (300-615 DCIT) CCNP Data Center concentration exam.
Cisco
CCNP Data Center
Learn to configure and operate modern Cisco data centers in this CCNP Data Center course. Build practical skills for implementing and managing network, compute, storage, automation, and security technologies while you prepare for the 350-601 v1.2 DCCOR certification exam. The course focuses on modern tools and cutting-edge approaches used in today’s cloud-connected and AI-powered environments, like VXLAN EVPN, Intersight-managed systems, NFS, and iSCSI. Through hands-on training that’s actually relevant to real-world jobs, learn how to operate, scale, and modernize enterprise data center infrastructure and pass the core exam for the CCNP Data Center.
Cisco
CCNP Data Center
Architect scalable, AI-ready data center environments as you work toward your CCNP Data Center certification. This Cisco DCID 300-610 training teaches you to design modern Cisco data center infrastructure for traditional enterprise workloads and emerging AI requirements. You’ll learn up-to-date architectural frameworks for network, compute, storage, and automation, with new emphasis on AI/ML workloads, lossless Ethernet, and high-performance fabrics. In this DCID 300-610 training, you’ll deep dive into technologies like RoCEv2, VXLAN EVPN, UCS X-Series, NVMe-oF, and centralized management with Cisco Intersight and Nexus Dashboard.
Cisco
CCNP ENCOR
Advance your networking career with this CCNP ENCOR (350-401) v1.2 training, and get ready to earn the CCNP Enterprise certification. Learn advanced routing, network security, network automation, and virtualization technologies like VRF and GRE tunneling to manage complex networks. This training covers key exam topics such as Cisco SD-WAN, SD-Access, QoS configuration, and Cisco DNA Center workflows. You'll leverage virtual labs and a 350-401 ENCOR practice exam to gain hands-on experience configuring Cisco hardware and software. You'll also build essential skills in troubleshooting, Multicast tree architectures, and infrastructure security. This ENCOR training is ideal for network administrators and IT teams, and equips you with the advanced skills you need to thrive in enterprise environments.
Cisco
CCNP ENSDWI
This CCNP Enterprise Implementing Cisco SD-WAN Solutions course prepares professionals to deploy, manage, and troubleshoot Cisco SD-WAN at the enterprise level. Network engineers and operations leads will gain practical experience configuring Cisco Catalyst SD-WAN Manager (formerly vManage), setting up VPN segmentation, and securing multi-cloud environments. Study for your certification with expert instructors and unlimited practice exams. It's hands-on training for the 300-415 ENSDWI exam and real-world success.
Cisco
CCT Data Center
In this foundational Cisco skills training, Jeff Kish covers the Cisco data center objectives of the 010-151 DCTECH exam, which Cisco retired on 9 February 2025, so new technicians get the same grounding the CCT Data Center path gave them. This course covers data center servers, hypervisors, storage arrays, storage area networks (SANs), and more.
Cisco
Cisco ACI
This entry-level Cisco ACI training course introduces IT professionals to the fundamentals of Application Centric Infrastructure, equipping network administrators and engineers with hands-on skills in ACI fabric configuration, policy management, and automation. You’ll learn to build and manage scalable ACI environments, automate tasks using Python and REST API, and implement micro-segmentation and robust security policies. The course also covers integration with cloud services and third-party platforms, plus training on APIC management, Nexus 9000 spine-leaf architecture, VXLAN forwarding, and intent-based SDN design. Whether you're starting your journey with ACI fundamentals or looking to enhance your software-defined networking expertise, this course provides the practical knowledge needed to optimize modern data center performance and automation.
Cisco
Cisco CCNA
This Cisco CCNA training fully prepares you for the 200-301 v1.1 exam — and to earn your Cisco Certified Network Associate certification. Master core network fundamentals, IP connectivity, VLAN configuration, routing protocols (OSPF, static), LAN switching, NAT, DHCP, and VPN services. Explore network automation, cloud networking, and leveraging artificial intelligence in networking. You'll also gain access to unlimited CCNA practice exams and virtual labs that simulate enterprise-scale network scenarios with routers, switches, VLANs, and wireless controllers. These realistic practice tests and hands-on lab environments help you build confidence and practical skills before exam day. Start your CCNA certification journey here.
Cisco
Cisco CCNA 200-301 v2.0
For IT leaders who need a consistent networking baseline across the team: this associate-level Cisco CCNA 200-301 training gives staff the structure to resolve first-line issues without constant escalation. It covers foundational topics including network models, topologies, cabling, IPv4 subnetting/VLSM, IPv6, and wireless. Staff come away able to configure and troubleshoot Cisco IOS CLI, VLANs, 802.1Q trunks, inter-VLAN routing, single-area OSPFv2/OSPFv3, CDP/LLDP, security fundamentals, and AI-assisted networking. Hands-on labs lock in these skills so staff can configure core infrastructure, isolate faults, and troubleshoot wireless clients and OSPF adjacencies. Playlists, Virtual Labs, Practice Exams, and Team Reporting help training managers structure learning paths, provide safe hands-on practice, validate readiness before the 200-301 exam, and track progress.
Cisco
Cisco CCNP Collaboration Core (350-801 CLCOR)
Collaboration outages, poor call quality, expired or misconfigured certificates, and loose dial-plan controls create real business risk for organizations that run on Cisco Unified Communications. This intermediate course gives collaboration teams a shared, protocol-level understanding of how CUCM, Webex App calling, SIP, QoS, and secure media work together. It also covers how to keep these systems stable. Built for collaboration engineers, voice specialists, and senior support staff, the training covers high availability, disaster recovery, and CUCM upgrades. It also covers X.509 certificates, LDAP and SSO integration, SRTP, endpoint provisioning, call routing, and toll fraud prevention. Learners finish able to configure dial-plan components, deploy endpoints manually or in bulk, and build QoS policies. They can also troubleshoot DNS, NTP, LDAP, DHCP, registration, SIP call flow, and dial-plan issues using RTMT traces. At roughly 63 hours, this is a substantial investment that IT Directors and Training Managers can phase by operational domain: security, routing, endpoint deployment, troubleshooting, and QoS. Virtual Labs provide hands-on QoS practice with class maps, policy maps, policing, shaping, and WRED. Playlists and Team Reporting help leaders sequence modules and track completion across the team.
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Cisco
Cisco DNA Center
This intermediate-level Cisco DNA Center course covers implementing an SD-Access fabric, automating business intent, or getting full insight into your environment with Assurance. It will start from Day 0 with planning and best practices, basic setup of the DNA Center appliance, all the way to implementing a full SD-Access Overlay fabric.
Cisco
Cisco Wireless Basics
Cisco Wireless Basics gives network teams a shared baseline across legacy AireOS and modern IOS-XE 9800 wireless LAN controllers, so deployments and support tickets rely less on trial and error. IT Directors can assign this intermediate course to network engineers, wireless admins, and IT practitioners who support Cisco wireless. Learners connect RF design, propagation, QoS, AP modes, and roaming to controller tasks: creating WLANs, applying 9800 policy tags and profiles, using AireOS AP groups, and configuring WPA2 PSK, 802.1X, and AAA. Training Managers can add the course to a CBT Nuggets Playlist and track progress with Team Reporting. Where available, Virtual Labs and Practice Exams can be paired with the course's lab challenges and quiz-style review. The course works well for standardizing wireless operations on a small team or building consistent vocabulary across a larger one.
Cisco
ENNA
Gain valuable Cisco ThousandEyes skills with this intermediate CCNP Enterprise training. This course prepares you for the 300-445 ENNA exam by teaching you how to monitor, troubleshoot, and secure enterprise networks. You will learn to optimize performance and run proactive health checks using advanced Cisco ThousandEyes insights. This CCNP Enterprise course is perfect for network engineers seeking ENNA 300-445 exam prep, or looking to master modern network assurance.
Cisco
ENWLSD
This CCNP Designing Cisco Enterprise Wireless Networks - 300-425 ENWLSD training covers how to undertake wireless network design, perform site surveys, implement wired and wireless infrastructure and insure WLAN high availability. The course was built around the 300-425 ENWLSD concentration exam, which Cisco retired on 18 March 2026, and it still carries the wireless design work that exam measured.
Cisco
Layer 2 CCIE
This Layer 2 CCIE training prepares network engineers to manage advanced VLAN topics, including trunking, VLAN databases, and VTP. Learn to implement LACP, EtherChannel Misconfiguration Guard, and choose between PVST+, Rapid PVST+, and MST. Ideal for advanced configurations and practical skills in deploying and troubleshooting Layer 2 technologies in enterprise networks. This course includes virtual labs designed by by 2x CCIE Jeff Kish, and is an excellent resource to help you study for the Layer 2 portion of the CCIE exam.
CWNP
Wireless Analysis Professional Training
This Wireless Analysis Professional training covers how to analyze and troubleshoot wireless networks with a focus on advanced techniques and knowledge like protocol and spectrum analysis. For IT managers, this networking training can be used to onboard new network admins, curated into individual or team training plans, or as a networking reference resource.
CWNP
Wireless Design Professional Training
This Wireless Design Professional training covers how to manage every step of a WLAN deployment, from early planning steps to implementation and optimization. This WLAN skills course covers all the skills necessary for planning a wireless network, up to and including an enterprise-scale network.
CWNP
Wireless IoT Solutions Administrator Training
This Wireless IoT Solutions Administrator training covers how to use, manage, and troubleshoot the non-802.11 wireless protocols and standards that make wireless networks and operations possible. Network admins can use this intermediate wireless skills training to onboard new network admins, curated into individual or team training plans, or as a Wireless IoT reference resource.
CWNP
Wireless Network Administrator
This Wireless Network Administrator training teaches you how to deploy, manage, monitor, and troubleshoot 802.11 wireless networks. You’ll gain a comprehensive understanding of WLAN devices and operations while focusing on vendor-neutral 802.11 technologies instead of specific brands or manufacturers. For IT managers, this networking training can be used to onboard new network admins, curated into individual or team training plans, or as a networking reference resource.
CWNP
Wireless Security Professional Training
This Wireless Security Professional training covers how to secure and protect wireless networks with an understanding of the latest tools and technologies as well as how to respond to incidents proactively. For anyone who leads a technology team, this wireless training can be used to onboard new network admins, curated into individual or team training plans, or as a Wi-Fi security reference resource.
Buyer proof
How Comcast Saved Hundreds per seat with an Efficient, Scalable Training Program by CBT Nuggets
Enterprise Tech / Telcom · Florida, U.S. · 29
Comcast’s Sales Engineering division has a highly technical job, and needed a training solution that could keep up. CBT Nuggets helped them reduce their per-SE training cost by hundreds per seat, and is now the training standard across 10 out of 13 Comcast SE regions.
Read the full case study“CBT Nuggets is interesting because they can give you these little certificates that say, hey, you completed this content and got certified. As a policy, we accept that.”
Chris Layfield
Director of Engineering at Comcast Business