Cisco 640-861 : CCDA Cisco Certified Design Associate

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Cisco CCDA Cisco Certified Design Associate Sample Questions:

1. Cisco .com has a campus network with five buildings. Building 1 contains all the Cisco .com servers and the central core of the network. A Catalyst 6500 multilayer switch connects to each of the other buildings through Gigabit Ethernet links over multimode fiber optic cable. Each building has a single IP subnet with
300 to 500 devices in each.
A network technician at Cisco .com calls you and reports some serious network performance problems. Periodically, response times become very slow for several minutes at a time and then speeds up. The problem has been sporadic and very difficult to troubleshoot. Cisco .com uses Microsoft Windows 2000 and Sun Solaris servers and Windows 2000 workstations with default configurations.
What change in network design would you recommend to Cisco .com to improve performance?

A) Implement multiple VLANs in each of the buildings
B) Install dual Gigabit uplinks to the buildings
C) Put a layer 3 switch in each building
D) Use single mode fiber for the gigabit uplinks

2. Which of the following are the functional areas of the Enterprise Composite Network Model? (Choose two)

A) enterprise management
B) enterprise edge
C) enterprise commerce
D) enterprise provider edge
E) enterprise campus
F) enterprise backbone

3. An analysis of the 258 kbps wan link for a network shows that the link is not usually congested.
However, delay-sensitive applications are often hampered when large packets block access.
What is this problem called and what are two possible solutions? (Choose three)

A) Link layer fragmentation and interleaving.
B) Use different VLANs for each application type.
C) Compressed real-time protocol.
D) Use different subinterfaces for each application type.
E) Serialization delay.
F) Packetization delay.

4. Which of the following issues can you prepare yourself to face if you use a design plan that consists of multiple, complex implementation steps.
(Choose all that apply.)

A) all of the above
B) budgetary constraints
C) intricate, difficult troubleshooting
D) more time necessary to revert to previous states in case of failure
E) corporate policies regarding protocols, standards, vendors, and applications
F) less time necessary to revert to previous states in case of failure

5.
The graphic represents a common multicast situation. The switch is a Layer 2 switch. Which three considerations are important in designing a solution? (Choose three.)

A) A solution may be deployed to allow the switch to find out from the router which users are part of the multicast group.
B) Static entries that specify which ports should receive broadcast traffic must be eliminated and replaced by GVRP.
C) The problem is that the default behavior for the router forwards the multicast traffic through every interface.
D) A solution may be deployed to allow the examination of the IGMP data to determine which switch ports need to participate in a multicast group.
E) The key is to deploy a solution that suppresses incoming traffic by bandwidth rather than by packets per second.
F) The problem that needs to be overcome is the flooding on the Layer 2 switch.

Solutions: