多項(xiàng)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.


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2.單項(xiàng)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.

3.單項(xiàng)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

4.單項(xiàng)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

5.單項(xiàng)選擇題Which of these statements best describes VPLS?()

A. Neither broadcast nor multicast traffic is ever flooded in VPLS.
B. Multicast traffic is flooded but broadcast traffic is not flooded in VPLS.
C. VPLS emulates an Ethernet switch, with eachEMS being analogous to a VLAN.
D. Because U-PE devices act as IEEE 802.1 devices, the VPLS core must use STP.
E. When the provider experiences an outage, IP re-routing restores PW connectivity and MAC relearning is needed.

6.多項(xiàng)選擇題Which two benefits does VoFR provide?()

A. bandwidth efficiency
B. cell-switching
C. congestion notification
D. heterogeneous network

10.單項(xiàng)選擇題Which IP telephony deployment model uses an H.225 Gatekeeper-Controlled trunk for call admission control within existing H.323 environments?()

A. single site with centralized call processing
B. single site with distributed call processing
C. multisite with centralized call processing
D. multisite with distributed call processing

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Which of the following is the primary consideration to scale VPNs?()

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During consultation, you find that a customer has only a single asset closet and is looking for a solution that is easy to deploy. Which NAS physical deployment model would you suggest to this customer?()

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

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

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In which tunnel-less VPN topology do group members register with a key server in order to receive the security association necessary to communicate with the group?()

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

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Please match the Cisco STP enahancement term to its definition.()(1) BPDU guard(2) PortFast(3) BackboneFast(4) Loop guard(5) Root guard(a) shuts down a port that receives a BPDU when enabled(b) cuts convergence time by mas-age for indirect failure(c) prevents the aliernate or root port from being designated in absence of BPDUs(d )causes Layer 2 LAN interface access port to immediately enter the forwarding state(e) helps prevent bridging loops due to jni-directional link failures on point-to-point links

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What will an Easy VPN hardware client require in order to insert its protected network address when it connects using network extension mode?()

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Which of these is a benefit of using Network Admission Control instead of Cisco Identity Based Networking Services?()

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