單項選擇題The Cisco MDS 9000 Series Multilayer SAN Switches can help lower the total cost of ownership of the most demanding storage environments. By combining a robust and flexible hardware architecture with multiple layers of network and storage-management intelligence, the Cisco MDS 9000 Series helps you build highly available, scalable storage networks with advanced security and unified management.What method does the Cisco MDS 9000 Series use to support trunking?（）

A.ISL
B.VLAN Trunk
C.VoQ
D.Enhanced ISL


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1.多項選擇題Which two are characteristics of RSVP?（）

A. RSVP itself provides bandwidth and delay guarantees.
B. For RSVP to be end-to-end, all devices must support RSVP.
C. RSVP reservations are maintained by a centralized reservations server.
D. An RSVP compatible QoS mechanism must be used to implement guarantees according to RSVP reservations.

3.單項選擇題What is one of the reasons that custom QoS ACLs are recommended over automatic QoS when configuring ports on a Catalyst 6500 for use with IP phones?（）

A. 79xx IP phones do not automatically mark voice packets with non-zero DSCP values.
B. 79xx IP phones do not mark protocol packets such as DHCP, DNS, or TFTP with non-zero DSCP values.
C. 79xx IP phones do not mark voice packets with optimal DSCP values.
D. 79xx IP phones use a custom protocol to communicate CDP information to the switch.

4.單項選擇題VLAN Tagging, also known as Frame Tagging, is a method developed by Cisco to help identify packets travelling through trunk links. When an Ethernet frame traverses a trunk link, a special VLAN tag is added to the frame and sent across the trunk link .How does ERS use the VLAN tag?（）

A. provide service internetworking
B. support transparency for Layer 2 frames
C. indicate destination as a connection identifier
D. map to the DLCI in service internetworking

5.單項選擇題When is the site-to-site remote access model appropriate? （）

A. for multiple ISDN connections
B. for modem concentrated dial-up connections
C. for a group of users in the same vicinity sharing a connection
D. for use by mobile users

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How many channels are defined in the IEEE 802.11b DSSS channel set?（）

題型：單項選擇題

The Cisco NAC Appliance is able to check which three items before allowing network access?（）

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What is the recommended practice when considering VPN termination and firewall placement?（）

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Which two of these are advantages of placing the VPN device parallel to the firewall?（）

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You are the Cisco Network Designer. Which of these is least important when determining how many users a NAS can support?（）

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Which of these statements is true of routing protocols in a hub-and-spoke IPsec VPN topology?（）

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What amount of cell overlap ensures smooth roaming for wireless endpoints?（）

題型：單項選擇題

Which two of these are advantages of placing the VPN device in the DMZ on the firewall?（）

題型：多項選擇題

Please match the Cisco NAC appliance component to its description.（）(1)Cisco NAS(2)Cisco NAA(3)Rule-set Lpdates(4)Cisco NAM(a) a centralized management point(b) an in-band cr out-of-band device for network access control(c) a Windows-based client which allows network access based on the tasks running(d) a status crecker for operating systems,antivirus,antispyware,etc.

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