Cisco 642-821 Exam Information and Actual Questions
- Exam Code/Number: 642-821
- Exam Name/Title: Building Cisco Remote Access Networks (BCRAN)
- Certification Provider: Cisco
- Corresponding Certification: CCNP
- Exam Questions: 244
- Updated On: Jul 25, 2026
642-821
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Cisco
642-821 Exam
Building Cisco Remote Access Networks (BCRAN)
This exam has been stopped to register, new exam code replace: 642-825
Cisco 642-821 Exam Overview:
| Certification Vendor: | Cisco |
| Exam Name: | Building Cisco Remote Access Networks (BCRAN) |
| Exam Number: | 642-821 |
| Passing Score: | 790 (on 100-990 scale) |
| Exam Price: | $125 USD |
| Exam Format: | Multiple-choice single/multiple answer, Drag-and-drop, Simulations, Scenario-based |
| Real Exam Qty: | Approx. 65-71 |
| Exam Duration: | 90 minutes |
| Certificate Validity Period: | 3 years |
| Available Languages: | English, Japanese |
| Related Certifications: | CCDP CCIP |
| Recommended Training: | Building Cisco Remote Access Networks (BCRAN) Course |
| Exam Registration: | Pearson VUE Cisco Retired Exam Info |
| Sample Questions: | Cisco 642-821 Sample Questions |
| Exam Way: | Proctored onsite at authorized Pearson VUE testing centers |
| Pre Condition: | Valid CCNA certification or equivalent knowledge |
| Official Syllabus URL: | https://www.cisco.com/site/us/en/learn/training-certifications/exams/retired.html |
Cisco 642-821 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Remote Access Overview and Asynchronous Connections | 20% | - Configuring asynchronous lines and modems - Modem standards and cabling - Remote access technologies and requirements - Modem autoconfiguration and troubleshooting |
| VPN and Advanced Remote Access | 15% | - Scaling and securing remote access networks - QoS for remote access links - Configuring site-to-site IPsec VPNs - IPsec VPN fundamentals |
| Frame Relay Connectivity | 20% | - Frame Relay concepts and terminology - Subinterfaces and bandwidth control - Configuring Frame Relay encapsulation and mapping - Frame Relay traffic shaping and troubleshooting |
| PPP and Access Control | 20% | - PPP protocol features and negotiation - Multilink PPP and compression - AAA framework, TACACS+ and RADIUS - PAP and CHAP authentication |
| ISDN and DDR Connectivity | 25% | - ISDN troubleshooting - ISDN BRI and PRI components and operation - ISDN call control and bandwidth management - Configuring and verifying ISDN BRI/PRI - Dial-on-Demand Routing (DDR) concepts |
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