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Cisco CCDA Cisco Certified Design Associate 認定 640-861 試験問題:

1. When using Ethernet, which frame size will impact on network performance?

A) None of the above.
B) A frame size (MTU) that uses the smallest data block size.
C) A frame size (MTU) that is the maximum supported.
D) A frame size (MTU) that is the minimum supported.
E) A frame size (MTU) that uses the largest data block size.

2. Cisco .com operates a chain of 50 video rental stores located in northern Italy.
They currently have a Point-of-Sale (POS) system in which each store posts its daily sales data and inventory changes to a central database through dial-up communication. There is no interaction between the stores and the central system during business hours. The central site runs on an Ethernet LAN. The only always-on WAN link is an Internet connection using wireless broadband to a local ISP.
Cisco .com wants to enhance their service offering by creating a new E-commerce web site where customers can browse and search a catalog of video titles and select the ones they want for rental. The system will instantly communicate the order to the nearest store where employees pull the order and hold it until the customer picks it up. The service must operate on a 24x7 basis.
Cisco .com sees this new business strategy as a means to increase revenue and expand the business nationally. They see ab opportunity to expand the web site in the future to video, DVD and music sales on a worldwide level.
The company wants all stores to be connected to the central site through WAN links.
The company is upgrading the central inventory database so that sales and rental can be posted immediately in real-time. An Internet-based email and instant-messaging system will be set up for all headquarters employees and store managers to use. Cisco .com believes that networking the stores will improve order fulfillment processes which will improve customer satisfaction and thus, boost revenue. It will also help communication with store employees.
Cisco .com wants to upgrade the local LAN to a Gigabit and Fast Ethernet system to facilitate the demands of the new and upgraded systems. They have a budgeted $500,000 for the networking equipment and another $10,000/month for the WAN charges including a faster Internet connection. They believe the 256Kbps speed will be adequate to the stores. Since they have no staff capable of managing the new network, they will hire two engineers that already have the training and experience. The project must be completed in 6 months when the new inventory system goes online.
The IT manager has concerns about the security of the servers and workstations on the network when all stores become connected. He doesn't want any Internet access to or from the stores. He is depending on you to recommend an effective yet affordable solution thet will protect his system from intruders.
What are the business goals of Cisco .com video that will apply to this network design project? Choose two.

A) upgrading the existing POS system
B) increase network security
C) boost customer satisfaction
D) improve employee communication
E) install the network in 6 months

3. Your newly appointed Cisco trainee wants to know how IPv6 manages to achieve subnetworking.
What will your reply be?

A) Subnetworks are assigned by Public Authorities such as Internet Service Providers
B) Site Level Aggregator in IPv6 addresses
C) Subnetworking is not permitted in IPv6
D) IPv4 compatible IPv6 addresses
E) All of the above

4. A Campus network is made up of VLANs that are attached to Layer-2 access switches using IP class C address. The campus backbone switches show low utilization. However, you received reports by users regarding slow network response. Traffic analyst shows excessive data-link layer traffic in building distribution layer.
Which two network design changes will you recommend that will have the ability to improve network response time? (Choose two)

A) Implement EIGRP at Distribution layer
B) Implement smaller broadcast domain
C) Implementing Spanning-Tree Protocol
D) Implementing NAT wherever possible
E) Implement smaller VLANs

5. DRAG DROP

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