642-384 試験問題を無料オンラインアクセス

What is the primary purpose of SMB Smart Designs?

• A.provides validated commercial solutions
• B.provides training on products, tools, and solutions
• C.provides a step-by-step outline of implementation tasks required
• D.assists in locating appropriate resources
• E.provides a direct support path for any partner issue

To avoid carrying every length of cable, lightning arrestors, and splitters when performing site surveys, engineers can outfit their survey kits with which item?

• A.RP-TNC connector
• B.antenna attenuator
• C.Category 5 cable
• D.RP-TNC plug

What does understanding the radiation patterns of different antenna types help you to determine when providing wireless coverage in an office building?

• A.the exact number of access points that are needed
• B.the location of the access points
• C.the type of antenna to cover a specific area
• D.the size of an area that will be covered

Refer to the exhibit.

Switches A and C are running PVST+ STP, and Switch B is running 802.1Q STP. If the BPDU of the root in VLAN 1 is better than the BPDU of the root in VLAN 2, then there is no blocking port in the VLAN 2 topology. The BPDU of VLAN 2 never makes a "full circle" around the topology; it is replaced by the VLAN 1 BPDU on the B-C link, because B runs only one STP merged with VLAN 1 STP of PVST+. Thus, there is a forwarding loop.
What does PVST+ do to correct this?

• A.Switch B sends PVST+ BPDUs of VLAN 1 (to the SSTP address that is flooded by Switch A) towards Switch C. Switch C will put port C-B into a type-inconsistent state, which prevents the loop.
• B.Switch A sends PVST+ BPDUs of VLAN 1 (to the SSTP address that is flooded by Switch B) towards Switch B. Switch A will put port C-B into a type-inconsistent state, which prevents the loop.
• C.Switch C sends PVST+ BPDUs of VLAN 2 (to the SSTP address that is flooded by Switch B) towards Switch Switch A will put port C-B into a type-inconsistent state, which prevents the loop.
• D.Switch A sends PVST+ BPDUs of VLAN 2 (to the SSTP address that is flooded by Switch B) towards Switch C. Switch C will put port C-B into a type-inconsistent state, which prevents the loop.

After configuring VTP, you no longer receive updates as expected. Which command can you use to verify the number of VTP advertisements being transmitted?

• A.show vtp status
• B.show vtp database
• C.show vtp statistics
• D.show vtp counters