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Updated: Jul 16, 2026
No. of Questions: 244 Questions & Answers with Testing Engine
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Cisco 642-821 Exam Overview:
| Certification Vendor: | Cisco |
| Exam Name: | Building Cisco Remote Access Networks (BCRAN) |
| Exam Number: | 642-821 |
| Available Languages: | English |
| Exam Format: | Multiple choice, Simulation |
| Related Certifications: | Cisco CCNP Routing and Switching |
| Sample Questions: | Cisco 642-821 Sample Questions |
| Exam Way: | Onsite proctored at authorized testing centers (exam retired) |
| Pre Condition: | Recommended to have CCNA 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 | Objectives |
|---|---|
| Topic 1: Securing Remote Access Networks | - VPN and IPSec Concepts |
| Topic 2: Identifying Remote Access Needs | - Site Requirements and Network Overview - Remote Access Solutions |
| Topic 3: Using ISDN and DDR Technologies | - Using ISDN Primary Rate Interface - Basic and Advanced DDR Options |
| Topic 4: Backup and Network Management Methods | - Enabling Backup to a Permanent Connection - Managing Network Performance |
| Topic 5: Broadband Access Methods | - Using DSL to Access a Central Site - Cable and Satellite Options |
| Topic 6: Establishing a Dedicated Frame Relay Connection | - Frame Relay Configuration - Frame Relay Traffic Shaping |
| Topic 7: Enabling On-Demand Connections | - Configuring PPP and Controlling Network Access - Configuring Asynchronous Connections with Modems - PPP Link Control Protocol Options |
| Topic 8: Scaling Remote Access Networks | - Scaling IP Addresses with NAT - Using AAA for Access Control |
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