Facts persuade better than adjectives, so Real4Prep leads with a free demo of its 640-606 materials. Download it, try the sample questions with verified answers, and let the 239 practice questions speak for themselves before you spend anything.
Cisco 640-606 Exam Overview:
| Certification Vendor: | Cisco |
|---|---|
| Exam Name: | Cisco Support 2.0 (CIT) - Cisco Internetwork Troubleshooting |
| Exam Number: | 640-606 |
| Exam Duration: | 75 minutes |
| Available Languages: | Japanese, English |
| Exam Format: | Multiple-choice single answer, Fill-in-the-blank, Multiple-choice multiple answer |
| Real Exam Qty: | 50–58 |
| Certificate Validity Period: | 3 years |
| Exam Price: | USD 125 |
| Passing Score: | 776 (scale 300–1000) |
| Related Certifications: | CCNP Routing and Switching CCDP |
| Recommended Training: | Cisco Internetwork Troubleshooting (CIT) course |
| Exam Registration: | Pearson VUE |
| Sample Questions: |  |
| Exam Way: | Onsite proctored at Pearson VUE testing centers |
| Pre Condition: | Valid CCNA certification required |
| Official Syllabus URL: | https://www.cisco.com (retired exam, original outline no longer available) |
Cisco 640-606 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Legacy & Upper Layer Protocols | 15% | - IPX/SPX and AppleTalk troubleshooting - Common application and service connectivity issues |
| Topic 2: Troubleshooting Methodology & Tools | 20% | - Protocol analyzers and network management tools - Systematic troubleshooting process - IOS show, debug, ping, traceroute, and logging commands |
| Topic 3: LAN & Switching Troubleshooting | 20% | - VLAN configuration and trunking issues - Spanning Tree Protocol (STP) problems - Switch port, speed/duplex, and Ethernet errors |
| Topic 4: TCP/IP & Routing Protocol Troubleshooting | 25% | - IP addressing, subnetting, and connectivity issues - EIGRP, OSPF, RIP troubleshooting - Route redistribution and path selection problems |
| Topic 5: WAN & Remote Access Troubleshooting | 20% | - Frame Relay, ISDN, and leased line issues - PPP authentication and encapsulation problems - DDR and dial-up connectivity |
Your 640-606 Exam Questions, Answered Honestly
Cisco lists these recommended training resources for the Cisco Support 2.0 (CIT) exam:
Official training plus consistent self-testing is a proven combination — the 239 practice questions from Real4Prep handle the second half.
Real4Prep issues a full refund if you take the Cisco Support 2.0 (CIT) exam within 60 days of purchase and do not pass. The policy does not apply if the exam is taken within 3 days of purchase, if the exam was never actually taken, or to free materials or expired orders, and the candidate name must match the payer name. Claims require a scan of your enrollment slip and the official Score Report PDF, submitted within 2 days of the exam, and are processed within 7 days. As an alternative, you can exchange for two free exam products of equal value while keeping your original update service. Orders arrive by email within 1 minute — contact support if nothing shows up within 2 hours.
The Cisco Support 2.0 (CIT) exam presents 50–58 with 75 minutes to complete them. Practicing under the same clock in the Real4Prep Desktop Test Engine makes the real pacing feel routine.
Onsite proctored at Pearson VUE testing centers Registration for the Cisco Support 2.0 (CIT) exam goes through these official channels:
After booking, the Real4Prep practice questions reach your inbox within 1 minute — preparation can start the same day.
The official Cisco Support 2.0 (CIT) outline defines 5 domains. The leading three are WAN & Remote Access Troubleshooting (20%), Troubleshooting Methodology & Tools (20%), and TCP/IP & Routing Protocol Troubleshooting (25%). See the complete list in the topics section above — the 239 practice questions at Real4Prep cover every domain.
The 640-606 exam is a Cisco certification exam built on the Cisco Support 2.0 (CIT) syllabus shown above. It contributes to these credential paths: CCNP Routing and Switching, CCDP. As information technology keeps reshaping how industries operate, certified skills remain one of the most portable proofs of capability in 2026. Real4Prep prepares you with 239 practice questions in PDF, Desktop Test Engine, and Online Test Engine formats.
Passing the Cisco Support 2.0 (CIT) exam requires 776 (scale 300–1000), and the registration fee is USD 125. A retake costs the same amount again — a practical reason to verify your readiness with the Real4Prep engines before booking.
The full Cisco Support 2.0 (CIT) preparation set at an affordable, small-profits price: 239 practice questions in three formats — a printable, expert-prepared PDF with instant download; a Desktop Test Engine for Windows that simulates the real exam with two practice modes and works offline; and an Online Test Engine for any browser on Windows, Mac, Android, and iOS with test history and performance review. A free demo is available anytime, updates are free for 365 days, renewal afterward is 50% off, installations are unlimited, and checkout is McAfee-secured with automatic encryption of your personal information.
Valid CCNA certification required Policies change over time, so confirm the current rules on the official Cisco exam page before scheduling.
