Cisco 642-873 real exam prep : Designing Cisco network Service Architectures (ARCH)

  • Exam Code: 642-873
  • Exam Name: Designing Cisco network Service Architectures (ARCH)
  • Updated: Sep 21, 2026
  • Q&As: 231 Questions and Answers

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Cisco 642-873 Exam Overview:

Certification Vendor:Cisco
Exam Name:Designing Cisco Network Service Architectures (ARCH)
Exam Number:642-873
Passing Score:Variable (typically Cisco-scaled score ~750/1000)
Exam Price:USD 200-300 (historical; exam has been retired and pricing may no longer apply)
Certificate Validity Period:3 years (Cisco certification validity; exam itself is retired)
Exam Format:Drag and drop, Scenario-based questions, Multiple response, Multiple choice
Exam Duration:90 minutes
Available Languages:English
Related Certifications:CCDA (Cisco Certified Design Associate)
CCDP (Cisco Certified Design Professional)
Real Exam Qty:45-65
Recommended Training:Cisco Learning Network (ARCH / Design resources)
Cisco Official Training Catalog
Exam Registration:Pearson VUE Cisco Exams
Cisco Certification Portal
Sample Questions:Free Download real 642-873 exam prep
Exam Way:Computer-based exam at Pearson VUE test centers or online proctored delivery (depending on region and availability during exam lifecycle).
Pre Condition:Recommended prior experience with Cisco networking fundamentals and CCNA-level knowledge; CCDA/CCDP track alignment recommended.
Official Syllabus URL:https://www.cisco.com/c/en/us/training-events/training-certifications/certifications.html

Cisco 642-873 Exam Syllabus Topics:

SectionObjectives
Topic 1: Security and Policy Integration- Network security architecture
  • 1. Segmentation and zoning strategies
    • 2. Cisco SAFE framework principles
      Topic 2: Advanced Services and QoS- Advanced network services
      • 1. Multicast design considerations
        • 2. IPv6 deployment planning
          - Quality of Service design
          • 1. QoS models (DiffServ, IntServ)
            • 2. Traffic classification and marking
              Topic 3: Enterprise Network Design Principles- Resiliency and high availability
              • 1. Convergence and failover strategies
                • 2. Redundancy design (device and link level)
                  - Scalability and hierarchy design
                  • 1. Three-tier campus architecture (access, distribution, core)
                    • 2. Modular network design principles
                      Topic 4: WAN and Remote Connectivity- Remote access design
                      • 1. VPN architecture (site-to-site and remote access)
                        - WAN technologies
                        • 1. Metro Ethernet and leased line design
                          • 2. MPLS VPN design considerations
                            Topic 5: Routing and Infrastructure Design- Interior Gateway Protocol design
                            • 1. EIGRP design considerations
                              • 2. OSPF design and optimization
                                - External routing design
                                • 1. BGP design and policy control

                                  642-873 Exam Questions Answered: Details and Services

                                  Written terms, promptly honored. If you fail the corresponding exam within 60 days of purchase, send us a scanned copy of your enrollment slip and your official Score Report PDF within two days of the exam date; verified claims receive a full refund within seven days. Exclusions: exams taken within three days of purchase, candidate names that differ from the payer, and free or expired products. Prefer to keep studying? We will exchange your product for two others of equal value at no cost.

                                  Cisco recommends these official training options:

                                  Match the course to your experience level, then reinforce it with steady question practice.

                                  Currently, the 642-873 exam requires a passing score of Variable (typically Cisco-scaled score ~750/1000) and carries a registration fee of USD 200-300 (historical; exam has been retired and pricing may no longer apply). Cisco can revise either figure, so confirm both on the official site before you schedule.

                                  Because every step is built to save time. The 642-873 bank is carefully made — expert-verified answers across the Cisco Designing Cisco network Service Architectures (ARCH) objectives, organized for efficient study rather than endless reading. Delivery is instant upon payment, updates are free for 365 days and arrive by email automatically, and our customer service team is online 24 hours to give fast, precise replies whenever a question about the materials comes up. Efficiency is the design goal, from first click to exam day.

                                  The Cisco Designing Cisco network Service Architectures (ARCH) blueprint is structured around these main domains:

                                  • Advanced Services and QoS
                                  • Security and Policy Integration
                                  • Routing and Infrastructure Design

                                  Further domains complete the official outline; the question bank spans every one.

                                  Per the latest exam information, the 642-873 exam includes 45-65 questions and allows 90 minutes minutes. Rehearsing under the same limit at home removes one more unknown from exam day.

                                  Upon successful payment, our system automatically emails the product to your mailbox — typically within about a minute — with an instant download link on screen, so you can start studying right away. If nothing arrives within two hours, check your spam folder and contact our 24-hour support team. Installations are unlimited, and your purchase includes 365 days of free updates delivered by email, plus a 50% renewal discount afterward.

                                  Cisco lists these prerequisites for the Cisco Designing Cisco network Service Architectures (ARCH): Recommended prior experience with Cisco networking fundamentals and CCNA-level knowledge; CCDA/CCDP track alignment recommended..

                                  Confirm the current requirements on the official certification page before registering.

                                  Registration goes through the official channels below:

                                  Choose a test center or online session that fits your schedule, and book ahead for the best availability.

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