Cisco certifications explained

Cisco Certifications are the list of the Certifications offered by Cisco Systems. There are four to five (path to network designers) levels of certification: Associate (CCNA/CCDA), Professional (CCNP/CCDP), Expert (CCIE/CCDE) and recently, Architect (CCAr: CCDE previous), as well as nine different paths for the specific technical field; Routing & Switching, Design, Industrial Network, Network Security, Service Provider, Service Provider Operations, Storage Networking, Voice, Datacenter and Wireless.
There are also a number of specialist technicians, sales, Business, data center certifications and CCAI certified instructors (Cisco Academy Instructor).

The Paths to the primary Certification

The table below shows the different paths and levels for Cisco Certifications. All Certifications, except for CCAr, requires the passing of one or more theoretical exams offered by Pearson VUE. CCIE Certifications also require a hands-on exam administered at special labs around the world.

Certification Paths
LevelEnterprise InfrastructureEnterprise WirelessCollaborationData CenterSecurityService ProviderDesignDevNetCybersecurity Operations
ExpertCCIE Enterprise InfrastructureCCIE Enterprise WirelessCCIE CollaborationCCIE Data CenterCCIE SecurityCCIE Service ProviderCCDECCDvE-
ProfessionalCCNP EnterpriseCCNP CollaborationCCNP Data CenterCCNP SecurityCCNP Service Provider-CCDvPCCCyP
AssociateCCNACCDvACCCyA
EntryCCST

As of October 1, 2023, Cisco has altered their certification structure.

As of February 24, 2020, Cisco altered their certification structure.

Source: https://www.cisco.com/c/en/us/training-events/training-certifications/certifications.html

Primary Certifications

Cisco Certified Entry Networking Technician (CCENT)

See main article: Cisco Certified Entry Networking Technician. Cisco Certified Entry Networking Technician represents the lowest level of certification which covers basic networking knowledge. Until its introduction, CCNA represented the first level of the certification program. It has appropriate use for an entry-level network support position. CCENT certified staff can install, manage and troubleshoot a small enterprise network, including basic network security. The first step towards a CCNA certification must start by having a CCENT.

In 2017, Cisco introduced new ICND1 and ICND2 exams (needed for the new CCNA Routing and Switching). ICND1: 100-105 (Interconnecting Cisco Networking Devices Part 1 v3.0) became the new exam required for CCENT.[1] With this change, CCENT became a sufficient pre-requirement for CCNA Security, CCNA Voice and CCNA Wireless.

It is valid for 3 years.[2]

Cisco Certified Technicians (CCT)

Cisco Certified Technicians have the skills to diagnose, restore, repair, and replace critical Cisco networking and system devices at customer sites. Technicians work closely with the Cisco Technical Assistance Center (TAC) to quickly and efficiently resolve support incidents.[3]

As of November 2017, there were 2 domains available for CCT certification:

Associate Certifications

CCNA Routing and Switching

See main article: CCNA. The CCNA Routing and Switching certification covered skills necessary to administer devices on small or medium-sized networks.[6] This certification required the ICND1 100-105 and ICND2 200-105 exams.

Pearson VUE test centers conduct these exams.[7]

All CCNA-certified individuals specialize by technology. Previously, specialized tracks required passing and maintaining a CCNA certification, but with the expiration of the 640 series tests this is no longer the case. As of autumn 2015,The CCNA Certification has no prerequisites.

Starting 24 February 2020, all CCNA specializations were consolidated. The 200-301 Cisco Certified Network Associate exam is now the only exam available at CCNA-level.

Valid for 3 years.[8]

Retired on February 23, 2020 [9]

CCDA

Cisco-Certified Design Associate (CCDA) certified engineers can design switched or routed networks of LANs, WANs and broadband services. The CCDA exam (200-310 DESGN) requires a CCENT at a minimum, though either CCNA or CCIE will serve as a prerequisite, as well SWITCH-level knowledge of Cisco-based LANs.[10]

Valid for 3 years.[11]

Retired on February 23, 2020 [12]

CCNA Cloud

[13]

Valid for 3 years.[14]

Retired on February 23, 2020 [15]

CCNA Collaboration

The Cisco Certified Collaboration Associate certification is for Cisco engineers who specialize in Cisco's Unified Communications (UC) products. Collaboration engineers focus on the deployment and support of voice, video, and live text communication solutions across IP networks.

Valid for 3 years.[16]

Retired on February 23, 2020 [17]

CCNA CyberOps

The CCNA Cyber Ops certification prepares candidates to begin a career working with associate-level cybersecurity analysts within security operations centers.

Valid for 3 years.[18]

Retired on May 28, 2020 [19]

CCNA Industrial

The Cisco Certified Network Associate Industrial (CCNA Industrial) certification is for plant administrators, control system engineers and traditional network engineers in the manufacturing, process control, and oil and gas industries, who will be involved with the convergence of IT and Industrial networks.

Valid for 3 years.[20]

Retired on February 23, 2020 [21]

CCNA Security

CCNA Security validates knowledge of security infrastructure, threats, and vulnerabilities to networks and threat mitigation. Required skills include installation, troubleshooting and monitoring of network devices to maintain the integrity, confidentiality, and availability of data and devices. To earn this certification one must pass the 210-260 IINS (Implementing Cisco IOS Network Security) exam, as well as hold a current CCNA certification. The CCNA-Security is a prerequisite to the CCNP Security certification.[22] It represents the required exam to earn the certification and for continuing the security certification path to the CCNP.[23]

Note: The CCNA Security courseware holds compliance with the NSA and CNSS training standard of CNSS 4011. By remaining compliant, the CCNA Security program provides the required training for network security professionals who assist private sector entities and federal agencies of the United States, protects their information and aid in the defense of the United States IT infrastructure. Candidates who have passed the CCNA Security will receive a letter of recognition acknowledging they have met the CNSS 4011 training requirements.[24]

Valid for 3 years.[25]

Retired on February 23, 2020 [26]

CCNA Service Provider

CCNA Service Provider focuses validates the ability to configure and implement baseline Cisco Service Provider Next-Generation networks. Therequired Exams are 640-875 Building Cisco Service Provider Next-Generation Networks, Part 1(SPNGN1) and 640-878 Building Cisco Service Provider Next-Generation Networks, Part 2 (SPNGN2). Standard CCNA certification is not a prerequisite. The class, "Building Cisco Service Provider Next-Generation Networks" is delivered in two parts.

Part 1 is a 5-day instructor-led course that provides the basic knowledge and skills necessary to support a service provider network. The course provides knowledge of the major network components and helps learners to understand how service provider networks function. The course introduces IP Next-Generation Network (IP NGN) architecture. The course also includes remote labs that help gain practical skills for deploying basic Cisco IOS / IOS XE and Cisco IOS XR software features. Part 2 is a 5-day instructor-led course that provides knowledge of network construction and IP NGN architecture. The course includes additional remote labs.[27]

Valid for 3 years.[28]

Retired on February 23, 2020 [29]

CCNA Wireless

The CCNA Wireless certification covers wireless LANs, including networking associates/administrators, wireless support specialists, and WLAN project managers. The certification validates skills in the configuration, implementation, and support of wireless LANs. 200-355 WIFUND (Implementing Cisco Wireless Networking Essentials) is the required exam.

Valid for 3 years.[30]

Retired on February 23, 2020 [31]

Professional Certifications

See main article: CCNP. Cisco Certified Network Professional (CCNP) Certifications validate knowledge and skills required to install, configure, and troubleshoot converged local- and wide-area networks with 100 to 500 or more end-devices. One needs a valid CCNA certification to obtain a CCNP certification.[32] [33]

CCNP Routing and Switching

The CCNP validates the ability to plan, implement, verify, and troubleshoot local and wide-area enterprise networks and work collaboratively with specialists on advanced security, voice, wireless, and video solutions. In addition to CCNA Exams, professionals must pass three separate professional-level exams. The certification track changed in July 2010, with various migration paths available for those that had begun, but not completed, the CCNP certification process. In July 2014, Cisco released version 2.0 of the CCNP exams and training courses, "to reflect the alignment with changing industry job roles and the addition of new study materials."[34] 29 January 2015 was the last day to test using the v1.0 exams. As of 30 January 2015, only the v2.0 exam is offered.[34]

Required exams (v1.0):

Required exams (v2.0):

Retired on February 23, 2020 [41] Check CCNP Enterprise Architecture.

CCDP

With a CCDP certification, a network professional can discuss, design, and create advanced addressing and routing, security, network management, data center, and IP multicast enterprise architectures that include virtual private networking and wireless domains. An active CCDA certification acts as a prerequisite for this certification.

Required exams:

Note that CCDP requires 300-101 ROUTE and 300-115 SWITCH. After passing CCNP and CCDA, CCDP requires only 300-320 ARCH.

Retired on February 23, 2020 [43]

CCNP Collaboration

You are required to pass these four exams:300-070 CIPTV1 Implementing Cisco IP Telephony and Video, Part 1 (CIPTV1)
300-075 CIPTV2 Implementing Cisco IP Telephony and Video, Part 2 (CIPTV2)
300-080 CTCOLLAB Troubleshooting Cisco IP Telephony and Video (CTCOLLAB)
300-085 CAPPS Implementing Cisco Collaboration Applications (CAPPS)
[44]

CCNP Data Center

CCNP Data Center validates knowledge of data center design, equipment installation, and maintenance.[45]

Five required exams:[46]

OR

CCNP Security

Formerly Cisco Certified Security Professional (CCSP).

The CCNP Security certification[47] program aligns to the job role of the Cisco Network Security Engineer, who has responsibility for security in routers, switches, networking devices, and appliances, as well as choosing, deploying, supporting, and troubleshooting firewalls, VPNS, and IDS/IPS solutions for their networking environments. The CCNP Security certification requires CCNA Security or any CCIE Certification.

CCNP Service Provider

The CCNP Service Provider certification replaced the retiring CCIP certification.

Required exams:

CCNP Wireless

CCNP Wireless covers all aspects of wireless networking principles and theory. This certification requires four tests, covering Wireless Site Survey, Wireless Voice Networks, Wireless Mobility Services, and Wireless Security. The prerequisite acts as a valid CCNA Wireless certification.

Required exams:

Retired on February 23, 2020 [48]

Expert-level Certifications

See main article: CCIE Certification. Cisco Certified Internetwork Expert represents Cisco's highest certification, comprising seven tracks at present, tracks are updated and retired frequently and are aligned to industry's latest technologies and trends. As of October 6, 2010, 25,810 people held active CCIE Certifications.[49] [50] [51] CertMag,[52] voted it as the most technically advanced IT certification and statistics generally report it as the highest salaried certification in IT salary surveys.

CCIE began in 1993,[53] originally with a two-day lab, later changing to a one-day format. Fewer than 3% of Cisco-certified individuals attain CCIE certification and, on average, spend thousands of dollars and 18 months studying before passing.[54] Many candidates build training labs at home using old equipment, then sell it to other candidates after passing. Alternatively, candidates may rent "rack time" online. The CCIE consists of a written exam and a "lab" exam (in each track). The written exam acts as a prerequisite of the lab exam and has a cost of $400 per attempt. The written exam consists of 100 questions that must be completed within 2 hours. Upon passing the written exam, the candidate has eighteen months to take the lab exam. The candidate has three years after passing the written exam to successfully complete the lab. The lab is an eight-hour, hands-on exam designed to demonstrate that the candidate knows Internetworking theory and demonstrates advanced hands-on mastery. Candidates that do not pass the CCIE lab in that interval must re-pass the written exam before again attempting the CCIE lab exam. The minimum waiting time between attempts is one month.

As of July 2014, the CCIE Lab costs $1600 per attempt and ten Cisco locations offer it worldwide. Some of these locations do not offer all CCIE tracks. According to a Cisco survey, $9050 represents the average cost to prepare for CCIE certification as of April 2006, which gets spent mostly on practice equipment and study material.[55] No formal prerequisites currently exist for the CCIE written exam, but Cisco recommends at least 3–5 years networking experience. CCIE exists as the first Cisco Certified qualification and no other Certifications have existed previously. The associate and professional Certifications recognized the fact that CCIE is overkill for many networking personnel. Cisco has chosen not to make lower level Certifications prerequisites for the CCIE certification.

One may have the knowledge to hold multiple CCIE Certifications. Adam McCombs cited this qualification as "essentially a PhD in the internet" in Season 1 Episode 10 of Shark Tank.

Upon successful completion of the lab exam, Cisco awards a CCIE number to a new CCIE. The first CCIE number allocated (in 1993) started at 1,024 and increased thereafter. As of August 2011, the highest CCIE number allocated reached just over 30,000. The first number they allocated to the first CCIE lab location, rather than to an individual, and featured as a plaque at the entrance to the lab. They awarded Number 1025 to Stuart Biggs, who created the first written exam and first lab exam. The first person to pass both CCIE written and lab exams, known as Terry Slattery,[56] consulted at Cisco when the lab began development. Slattery held the first CCIE who did not work for Cisco.[57] [58] Each CCIE retains their number regardless of how many Certifications he or she receives. Every two years a CCIE has to take a written test to retain the certification. If not done, the certification becomes suspended. After one further year without passing, the certification becomes revoked. One can then only regain the certification by starting from scratch. Re-certification can occur up to 2 years before the expiration date. After certification/re-certification, a CCIE must wait 6 months before re-certifying.

CCIE Lab Exams are administered only at special CCIE Lab Test Centers around the world. However, all the tracks for testing may not be available at a lab location.[59]

CCAr

The Cisco Certified Architect (CCAr) certification assesses the experience and competency of network designers who can support the increasingly complex networks of global organizations and effectively translate business strategies into technical strategies.[60] [61]

The Cisco Certified Architect certification is administered as a board exam. Candidates propose and defend an architecture solution to a set of business requirements. Candidates are asked to modify their proposals "on the fly," based on additional requirements presented by the board. Prerequisites include a CCDE certification, approximately 10 years of industry experience, and acceptance into the program via an application process.

Responsibilities of the Cisco Certified Architect:

CCIE Routing and Switching

Routing and Switching seem by far the most popular track, with 35,272 worldwide certified individuals as of May 18, 2012.[62] The certification covers a variety of networking concepts and protocols.

Retired. Check CCIE Enterprise Infrastructure [63] .

CCDE

CCDE runs in parallel with the more established CCIE program, in some areas providing a higher skill-set than CCIE. Specifically, CCDE identifies network professionals who have expert network design skills. Network design translates business requirements into end-to-end network designs and a solutions approach to network expansion and integration.[64] CCDE focuses on network architecture and does not cover implementation and operations. CCDE supplies a vendor-neutral curriculum, testing business requirements analysis, design, planning, and validation practices.[65] The course came about because employers needed a way to identify experienced network designers and architects who could address all aspects of existing and new networking technologies and trends.[66] While engineers (including many CCIEs) had fulfilled this role, certification had not advanced beyond the CCDP certification. CCDE numbering adopts a different format than CCIE and appears split into a year and number within that year. It uses the same CCIE tools to verify qualified status. CCDE certified individuals can use CCIE qualification exams to re-certify and vice versa. CCDE provides advanced network infrastructure design principles and fundamentals for large networks. A CCDE can demonstrate an ability to develop solutions which address planning, design, integration, optimization, operations, security, and ongoing support focused at the infrastructure level.

CCIE Collaboration

The Voice track covers advanced topics in subjects such as Quality of Service, MGCP, Cisco Call Manager (Cisco's VoIP PBX), Cisco Unity Connection (Cisco's Voice Messaging platform), Unity Express, Unified Contact Center Express, Cisco Unified Presence Server, Cisco's HWIC-4ESW, and the 3750-24PS. Most candidates pass after three or four lab attempts, but some have required more than six. Many have reputed that the lab exam seems as much a test of time management and planning as of technical expertise. The widely dissimilar platforms used sets the Voice lab exam apart from other CCIE lab exams. One must make configurations on the Windows Server environment, a CallManager web-based GUI, and the IOS command line. As such, it involves a lot of back-and-forth fine tuning between the numerous platforms.

In May 2013, Cisco announced it will retire the CCIE Voice track and introduce the new CCIE Collaboration track, including new topics such as virtualization, Jabber instant messaging and video. After protest from current and aspirant CCIE Voice holders, whom argued that the differences remain too few to warrant retiring the track with no option to transition to the new track, Cisco offered a transition path for existing Voice holders. The Collaboration written exam may have availability starting from November 21, 2013. The lab exam will transition from Voice to Collaboration on February 14, 2014.

CCIE Data Center

Cisco has announced the September availability of a CCIE Data Center certification,[67] which certifies the expert-level skills required to plan, prepare, operate, monitor, and troubleshoot complex data center networks. The CCIE Data Center written exam will be available Sept. 3, 2012;[68] the lab exam should have availability in October.[69]

CCIE Security

The Security track covers advanced topics in subjects such as ASA, FirePower, IOS security, Wireless Security, Content Security, Antimalware Protection and many others.

CCIE Service Provider

The Cisco CCIE Service Provider (CCIE SP) certification validates expert level skills required of a Network Engineer to configure, build, troubleshoot, and optimize a complex highly available Service Provider IP NGN core infrastructure. Candidates preparing for CCIE SP certification possess thorough knowledge in IP core, aggregation/edge, and remote access technologies, Layer 2 and 3 VPNs, plus managed services traversing an IP core network.

CCIE Wireless

Candidates who pass the CCIE Wireless certification exams demonstrate broad theoretical knowledge of wireless networking and a solid understanding of wireless local area networking (WLAN) technologies from Cisco.

Retired. Check CCIE Enterprise Wireless[70]

Specialist Certification

In addition to the vast amount of Certifications above, Cisco also provides Meraki Specialist Certifications.[71]
The exams for these Certifications are often focused on some specific technology and generally targeted at members of the Cisco Partner Program, including those selling, designing, or supporting Cisco products and services. By combining various exams, a Cisco partner can gain specialty status and thus qualify for additional partner benefits.[72]

Specializations can be held at Express, Advanced and Master levels, reflecting the depth of a partners skills across certain technologies and architectures, and can be held in both a Technology portfolio, or an architecture. Specializations are:[73]

See also

Notes and References

  1. News: Dipali. R. CCENT. 10 November 2015. certiology.
  2. Web site: CCENT. Cisco.
  3. Web site: Worldwide . CCT Data Center Certification - CCT Data Center Certification - Cisco Systems . Cisco.com . 2012-07-24.
  4. Web site: CCT Routing & Switching. Cisco.
  5. Web site: CCT Data Center. Cisco.
  6. Web site: PCWorld Business Center. IT Certifications That Matter.
  7. Web site: About Registering for Exams. Cisco Systems, Inc.. dead. https://web.archive.org/web/20110910123617/http://www.cisco.com/web/learning/le3/le11/learning_about_registering_for_exams.html. 2011-09-10.
  8. Web site: CCNA Routing and Switching. Cisco.
  9. Web site: Cisco Retired Certs. Cisco.
  10. Web site: Worldwide . CCDA - IT Certifications and Career Paths - Cisco Systems.
  11. Web site: CCDA. Cisco.
  12. Web site: Cisco Retired Certs. Cisco.
  13. Web site: Worldwide . CCNA - Cloud Certifications - Cisco Systems.
  14. Web site: CCNA Cloud. Cisco.
  15. Web site: Cisco Retired Certs. Cisco.
  16. Web site: CCNA Collaboration. Cisco.
  17. Web site: Cisco Retired Certs. Cisco.
  18. Web site: CCNA Cyber Ops. Cisco.
  19. Web site: Cisco Retired Certs. Cisco.
  20. Web site: CCNA Industrial. Cisco.
  21. Web site: Cisco Retired Certs. Cisco.
  22. Web site: CCNA Security Certification . Cisco.com . 2013-07-01 . 2014-07-15.
  23. Web site: CCNA Security . Cisco.com . 2013-01-06 . dead . https://web.archive.org/web/20130101184012/http://www.cisco.com/web/learning/le3/le2/le0/le1/learning_certification_type_home.html . 2013-01-01 .
  24. Web site: Welcome to BENSBOOKMARKS.COM. www.bensbookmarks.com.
  25. Web site: CCNA Security. Cisco.
  26. Web site: Cisco Retired Certs. Cisco.
  27. Web site: Cisco Learning Network Mobile CCNA Service Provider. Learningnetwork.cisco.com . 2012-07-22.
  28. Web site: CCNA Service Provider. Cisco.
  29. Web site: Cisco Retired Certs. Cisco.
  30. Web site: CCNA Wireless Certification Overview. Cisco.
  31. Web site: Cisco Retired Certs. Cisco.
  32. Web site: Worldwide . CCNP Certification - Cisco Systems . Cisco.com . 2010-01-25 . 2012-07-22.
  33. Web site: CCNP Certification . Certification-crazy.net . 2012-07-22.
  34. Web site: CCNP Routing and Switching. Cisco.com. 19 August 2014.
  35. Web site: Cisco Learning Network Mobile CCNP Routing . https://web.archive.org/web/20110708155021/https://learningnetwork.cisco.com/community/certifications/ccnp/route?tab=overview . dead . July 8, 2011 . Learningnetwork.cisco.com . 2012-07-22 .
  36. Web site: Cisco Learning Network Mobile Switching. Learningnetwork.cisco.com . 2012-07-22.
  37. Web site: Cisco Learning Network Mobile Troubleshooting . Learningnetwork.cisco.com . 2012-07-22 . https://web.archive.org/web/20121124063955/https://learningnetwork.cisco.com/community/certifications/ccnp/tshoot?tab=overview . 2012-11-24 . dead .
  38. Web site: Cisco Learning Network: 300-101 ROUTE. Cisco.com. 19 August 2014.
  39. Web site: Cisco Learning Network: 300-115 SWITCH. Cisco.com. 19 August 2014.
  40. Web site: Cisco Learning Network: 300-135 TSHOOT. Cisco.com. 19 August 2014.
  41. Web site: Cisco Retired Certs. Cisco.
  42. Web site: Cisco Learning Network Mobile Architect overview. Learningnetwork.cisco.com . 2012-07-22.
  43. Web site: Cisco Retired Certs. Cisco.
  44. http://www.cisco.com/c/en/us/training-events/training-certifications/certifications/professional/ccnp-collaboration.html CCNP-Collaboration
  45. Web site: Worldwide . CCNP Data Center - IT Certifications and Career Paths - Cisco Systems . Cisco.com . 2013-03-31.
  46. Web site: CCNP Data Center. Cisco.
  47. Web site: CCNP Security Certification . Cisco.
  48. Web site: Cisco Retired Certs. Cisco.
  49. http://www.cisco.com/web/learning/le3/ccie/certified_ccies/worldwide.html CCIE's Worldwide
  50. Web site: Cisco Certification - Worth of Cisco Certification . Certification.about.com . 2012-05-03 . 2012-07-24 . 2011-07-07 . https://web.archive.org/web/20110707074858/http://certification.about.com/od/ciscocertification/a/morris_intvw.htm . dead .
  51. http://www.cisco.com/web/learning/le3/ccie/employers Most respected certification
  52. http://www.certmag.com/articles/templates/cmag_feature.asp?articleid=487 CertMag certification survey, 2003
  53. http://newsroom.cisco.com/dlls/1993/corp_092793.html Cisco 1993 Press Release
  54. http://www.cisco.com/web/learning/le3/ccie/employers Cisco CCIE general facts
  55. http://www.cisco.com/web/learning/le3/ccie/downloads/results_survey__2006.pdf Cisco 2006 CCIE Survey
  56. Web site: Our Team - NetCraftsmen.
  57. Web site: VoIP news, trend analysis and opinion. Network World.
  58. Web site: CCIE test and numbering - Terry's Blog. https://web.archive.org/web/20071105151745/http://connection.netcordia.com/blogs/terrys_blog/archive/2007/08/16/ccie-test-and-numbering.aspx. dead. 5 November 2007. 5 November 2007.
  59. Web site: Take Your Lab Exam. 19 February 2015.
  60. Web site: Cisco Raises the Bar with Highest-Level IT Networking Certification: Cisco Certified Architect.
  61. Web site: Cisco Learning Network Mobile Architect syllabus. Cisco.hosted.jivesoftware.com. 2012-07-24. dead. https://archive.today/20130103213455/http://cisco.hosted.jivesoftware.com/community/certifications/cisco_certified_architect/syllabus. 2013-01-03.
  62. Web site: Certifications - Training & Certifications. Cisco.
  63. Web site: CCDA. Cisco.
  64. Designing a Better Career. Cisco CCDE Expert Level Certification. Datasheet DDM08CS1607 10/08
  65. (d-5333) CCDE Practical Exam Topics v2.0 26-Sep-2011
  66. Cisco Certified Design Expert (CCDE) Certification FAQ (Frequently Asked Questions). Version 2. CCDE FAQ v2.doc
  67. Web site: Cisco Learning Network Mobile Document. Learningnetwork.cisco.com . 2012-07-24.
  68. Web site: Cisco Learning Network Mobile Written Exam . Learningnetwork.cisco.com . 2012-07-24.
  69. Web site: Cisco Learning Network Mobile Documents. Learningnetwork.cisco.com . 2012-07-24.
  70. Web site: Wireless. Cisco.
  71. Web site: Specialist Certifications. 19 February 2015.
  72. Web site: CCIE/CCDE Emeritus.
  73. Web site: Cybersecurity Career Path.