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Updated: Sep 24, 2026
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Cisco 640-861 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Designing Basic Campus Networks | 25% | - Layer 2 and Layer 3 Design Principles - VLAN and Spanning Tree Design - Hierarchical Network Model - IP Addressing and Subnetting |
| Topic 2: Designing WAN and Remote Access | 20% | - Frame Relay, DSL, and Broadband - WAN Optimization and Resilience - WAN Connectivity Options - VPN and Remote Access Design |
| Topic 3: Network Design Methodology | 20% | - Top-Down Design Approach - Design Documentation and Testing - Identifying Customer Requirements - Characterizing Existing Networks |
| Topic 4: Designing Routing Protocols | 20% | - Routing Protocol Scalability - Static and Dynamic Routing - OSPF and EIGRP Design - Route Summarization and Redistribution |
| Topic 5: Designing for Security and Scalability | 15% | - Access Control and Firewall Placement - High Availability and Redundancy - Network Growth and Scalability - Security Design Principles |
Cisco CCDA Cisco Certified Design Associate Sample Questions:
Under which circumstances would you recommend static IP addressing?
- A. When a variable number of IP addresses are required per subnet.
- B. When it is desirable to administratively track a given number of IP addresses.
- C. When a given number of each IP addresses need to be reserved for distribution to dial-in clients
- D. When a given number of IP addresses are expected to change.
Correct Answer: B 🗳️
Explanation: Only visible for ITCertMagic members. You can sign-up / login (it's free).
Why would a Cisco network designer recommend variable-length subnet masking for a network?
- A. to minimize convergence time
- B. to suit the flat structure of the network
- C. to increase security and availability
- D. to accommodate a mixed vendor environment
- E. to implement classless routing
Correct Answer: E 🗳️
Explanation: Only visible for ITCertMagic members. You can sign-up / login (it's free).
You are a network administrator at Cisco and have been instructed to design as well as implement a SAFE network. You have done so, but now the users on the network complain that they still encounter some DoS attacks on specific hosts in the E-commerce module. You already place limits on the connection rate at the firewall, but the problem prevails.
What else can you do to ameliorate the effects of these attacks?
- A. Ensure all relevant OS patches have been applied
- B. Practice Load-balancing between multiple servers with similar applications
- C. Block all TCP traffic to these servers at the internet firewall
- D. Move the affected servers to the DMZ
- E. Block all UDP traffic to these servers at the internet firewall
Correct Answer: A 🗳️
Explanation: Only visible for ITCertMagic members. You can sign-up / login (it's free).
You are a network administrator at Cisco and have been instructed to provide the new tenant in your building with a unique VLAN. There are two other workgroups with 80 users respectively present at this site.
Both these groups have a subnet out of a Class B address with a subnet mask of 255.255.255.128
The new tenant will start with 18 users with the potential to move up to 24 users.
EIGRP is routing protocol in use.
To assure efficient IP addressing that will satisfy the new tenants' requirements which subnet mask will you use?
- A. 255.255.255.240
- B. 255.255.255.224
- C. 255.255.255.192
- D. 255.255.255.128
Correct Answer: B 🗳️
Explanation: Only visible for ITCertMagic members. You can sign-up / login (it's free).
*EXHIBIT MISSING* Will be provided in later versions.
What topology is represented in the above exhibit?
- A. High-level topology map of the customer's current network.
- B. High-level topology map of the customer's proposed e-mail packet flow. C.
High-level topology map that meets the customer's requirements. - C. High-level topology map of the customer's proposed intranet security system.
Correct Answer: A 🗳️
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