Try Cisco : 640-864 valid & accurate questions and answers

Updated: Sep 09, 2026

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Cisco 640-864 Exam Overview:

Certification Vendor:Cisco
Exam Name:Designing for Cisco Internetwork Solutions (DESGN)
Exam Number:640-864
Certificate Validity Period:3 years
Exam Format:Simulation-Based Questions, Drag and Drop, Multiple Choice, Multiple Answer
Real Exam Qty:65-75
Related Certifications:Cisco Certified Design Associate (CCDA)
Available Languages:English, Japanese
Exam Duration:75 minutes
Sample Questions:Cisco 640-864 Sample Questions
Exam Way:Computer-based exam delivered at authorized Pearson VUE testing centers.
Pre Condition:No mandatory prerequisite. Cisco recommended knowledge equivalent to CCNA-level networking and experience with Cisco network technologies.
Official Syllabus URL:https://www.cisco.com/site/us/en/learn/training-certifications/exams/retired.html

Cisco 640-864 Exam Syllabus Topics:

SectionObjectives
WAN Design- WAN technologies and connectivity
  • 1. Bandwidth and SLA considerations
    • 2. Site-to-site connectivity
      • 3. Service provider options
        Enterprise Network Architecture- Cisco Enterprise Architecture
        • 1. Enterprise edge design
          • 2. Campus design
            • 3. Branch, teleworker, and data center modules
              Design Methodologies and Requirements Analysis- Customer business goals and technical requirements
              • 1. Gather business requirements
                • 2. Identify technical requirements and constraints
                  • 3. Apply the top-down network design methodology
                    Security Design- Enterprise security architecture
                    • 1. Defense-in-depth principles
                      • 2. Firewalls, VPNs, and intrusion prevention
                        • 3. Secure network management
                          Network Management and Design Validation- Operations and lifecycle
                          • 1. Monitoring and management tools
                            • 2. PPDIOO lifecycle methodology
                              • 3. Design verification and pilot testing
                                Wireless, Voice, and Network Services- Integrated network services
                                • 1. Voice and unified communications
                                  • 2. Quality of Service design
                                    • 3. Wireless LAN design considerations
                                      LAN and Campus Design- Hierarchical network design
                                      • 1. Access, distribution, and core layers
                                        • 2. Scalability considerations
                                          • 3. High availability and redundancy
                                            IP Addressing and Routing Design- Layer 3 design
                                            • 1. Routing protocol selection
                                              • 2. Route scalability and convergence
                                                • 3. IPv4 addressing and summarization

                                                  Cisco Designing for Cisco Internetwork Solutions Sample Questions:

                                                  Question #1

                                                  A network engineer is following the Cisco enterprise architecture model. To which network layer would a branch office connect to using a private WAN?

                                                  • A. Enterprise Edge
                                                  • B. Enterprise Campus
                                                  • C. Remote Module
                                                  • D. SP Edge Premise
                                                  Answer: C
                                                  Question #2

                                                  Which statement describes an advantage of the Layer 2 access model over the Layer 3 access model in the data center?

                                                  • A. It decreases convergence.
                                                  • B. It enables NIC teaming.
                                                  • C. It removes STP dependency.
                                                  • D. It increases scalability.
                                                  Answer: B
                                                  Question #3

                                                  Which two enterprise campus layers are combined in a medium-sized LAN? (Choose two.)

                                                  • A. aggregation
                                                  • B. core
                                                  • C. backbone
                                                  • D. access
                                                  • E. distribution
                                                  Answer: B,E
                                                  Question #4

                                                  A network engineer is using the traditional switched hierarchical design. The client has asked to increase uplink utilization from the access layer to the distribution. How can the engineer attain this new requirement without adding new physical connections?

                                                  • A. ensure the root bridge priority is equal on both distribution switches
                                                  • B. enable spanning-tree portfast
                                                  • C. enable VSS at the distribution layer
                                                  • D. increase the MTU size on the uplink interfaces
                                                  Answer: C
                                                  Question #5

                                                  An engineer has configured a router to send level 7 messages to a syslog server.
                                                  What severity level are these messages?

                                                  • A. debug
                                                  • B. warning
                                                  • C. error
                                                  • D. informational
                                                  • E. notice
                                                  Answer: A

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