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NEW QUESTION: 1

A. learning
B. forwarding
C. listening
D. discarding
Answer: D
Explanation:
Spanning Tree from PVST+ to Rapid-PVST Migration Configuration Example Reference 1: http://www.cisco.com/en/US/products/hw/switches/ps708/products_configuration_example 09186a00807b0670.shtml
Reference 2: http://www.cisco.com/en/US/tech/tk389/tk621/technologies_white_paper09186a0080094cf a.shtml
PVST+ is based on IEEE802.1D Spanning Tree Protocol (STP). But PVST+ has only 3 port states (discarding, learning and forwarding) while STP has 5 port states (blocking, listening, learning, forwarding and disabled). So discarding is a new port state in PVST+.

Background Information 802.1D Spanning Tree Protocol (STP) has a drawback of slow convergence. Cisco Catalyst switches support three types of STPs, which are PVST+, rapid-PVST+ and MST. PVST+ is based on IEEE802.1D standard and includes Cisco proprietary extensions such as BackboneFast, UplinkFast, and PortFast. Rapid-PVST+ is based on IEEE 802.1w standard and has a faster convergence than 802.1D. RSTP (IEEE 802.1w) natively
includes most of the Cisco proprietary enhancements to the 802.1D Spanning Tree, such
as BackboneFast and UplinkFast. Rapid-PVST+ has these unique features:
Uses Bridge Protocol Data Unit (BPDU) version 2 which is backward compatible with the
802.1D STP, which uses BPDU version 0.
All the switches generate BPDUs and send out on all the ports every 2 seconds, whereas
in 802.1D STP only the root bridge sends the configuration BPDUs.
Port Roles-Root port, designated port, alternate port and backup port.
Port States-Discarding, Learning, and Forwarding.
Port Types-Edge Port (PortFast), Point-to-Point and Shared port.
Rapid-PVST uses RSTP to provide faster convergence. When any RSTP port receives
legacy 802.1D BPDU, it falls back to legacy STP and the inherent fast convergence
benefits of 802.1w are lost when it interacts with legacy bridges.

NEW QUESTION: 2
Which of the following can cause a popup box to display on a laptop, alerting a user that they have performed the same action 5 times, and asking them to click OK to enable this feature?
A. Flickering display
B. Ghost cursor
C. Sticky keys
D. Lock indicator lights
Answer: C

NEW QUESTION: 3
HOTSPOT
You are developing a web application.
You need to create the following graphic by using Cascading Style Sheets (CSS):

Use the drop-down menus to select the answer choice that completes each statement. Each correct selection is worth one point.
Hot Area:

Answer:
Explanation: