Which port channel&#

第1题：

Which of the following three port types are valid Spanning Tree port types？（Choose the best threeanswers.）（）

• A、Designated port
• B、Nonswitch port
• C、Switch port
• D、Nonroot port
• E、Nondesignated port
• F、Root port

第2题：

Which three flow-control port states lead to enabled link flow control？ （）

• A、 Receive port： Enabled， Transmit port： Enabled
• B、 Receive port： Enabled， Transmit port： Desired
• C、 Receive port： Enabled， Transmit port： Disabled
• D、 Receive port： Disabled， Transmit port： Desired
• E、 Receive port： Desired， Transmit port： Desired

第3题：

第4题：

Which ports must be left open if an administrator plans to perform Dynamic LPAR operations？（）

• A、 port 21（ftp）：tcp and port 657（rmc）：tcp
• B、 port 22（ssh）：tcp and port 657（rmc）：udp
• C、 port 657（rmc）：tcp and port 657（rmc）：udp
• D、 port 161（snmp）：tcp and port 161（snmp）：udp

第5题：

What value is primarily used to determine which port becomes the root port on each non root switch in a spanning-tree topology?（）

• A、path cost
• B、lowest port MAC address
• C、VTP revision number
• D、highest port priority number
• E、port priority number and MAC address

第6题：

What value is primarily used to determine which port becomes the root port on each nonroot switch in a spanning-treetopology?（）

• A、lowest port MAC address
• B、port priority number and MAC address.
• C、VTP revision number
• D、highest port priority number.
• E、pathcost

第7题：

Which two ports are used with RADIUS authentication and authorization？（）

• A、UDP port 1812
• B、UDP port 2000
• C、TCP port 2002
• D、UDP port 1645

第8题：

第9题：

Which of the following will generate an RSTP topology change notification？（）

• A、 an edge port that transitions to the forwarding state
• B、 a non-edge port that transitions to the blocking state
• C、 a non-edge port that transitions to the forwarding state
• D、 an edge port that transitions to the blocking state
• E、 any port that transitions to the blocking state
• F、 any port that transitions to the forwarding state

第10题：

A banking customer has a firewall between their AMM and the remote console which is used to configure the chassis and blades. Due to security concerns, port 80 (http) is being blocked, denying any http access to the AMM. Which of the following would facilitate remote communication with the AMM using a GUI interface?（）

• A、port 443 - SSL connection 
• B、port 8080 ?http 
• C、port 22 - SSH CLI 
• D、port 427 - SLP connection