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List of questions

Question 21

Which of the following standards defines STP?

802.1J

802.1X

802.1D

802.1P

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Question 22

Which statements about the PVID on the access interface are true?

When receiving a packet without the VLAN tag, the interface adds the VLAN tag to the packet and sets the VID in the tag to the default VLAN ID.

When receiving a packet with a VLAN tag, the interface compares the VLAN ID in the tag with the default VLAN ID. If they are the same, the interface forwards the packets; otherwise, the interface discards the packets.

When the interface sends a packet with a VLAN tag that contains the default VLAN ID, the system removes the VLAN tag of the packet, and then forwards the packet.

None of the above.

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Question 23

Which statement about ARP proxy is false?

The ARP proxy, namely, the gateway, sends ARP request for the host. The MAC address in the ARP request packet is the MAC address of the host.

The ARP proxy, namely, the gateway, sends ARP request for the host. The MAC address in the ARP request packet is the MAC address of its own interface.

ARP proxy is also called promiscuous ARP or ARP hack.

The ARP proxy allows the hosts on the networks with the same network ID to communicate with each other.

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Question 24

In RSTP network environment, a port can be set as edge port when it is directly connected with terminal.

True

False

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Question 25

Which of the following statements about STP Designated Port is true?

Each of the bridge can have one Designated Port only.

Designated Port is responsible for forwarding packets to its connected network segments.

The only path leading to the Root Bridge is through Designated Port.

Designated Port forwards the data packet from its corresponding switch to the Root Switch.

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Question 26

The following is the command output on a root switch of an MSTP region. How many switches are located in the MSTP region?

Less than 10

Less than 20

Less than 30

Less than 40

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Question 27

If an MSTP switch detects that the neighboring switch works in RSTP mode, which mode does the MSTP switch work?

STP mode

RSTP mode

MSTP mode

All of the above

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Question 28

When the GVRP registration mode is FIXED, which statement is true?

VLANs can be manually created and registered on the interface, and can also be dynamically registered and deregistered on the interface.

VLANs cannot be manually created and registered on the interface, but can be dynamically registered and deregistered on the interface.

VLANs can be manually created and registered on the interface, but cannot be dynamically registered or deregistered on the interface.

VLANs cannot be manually created and registered on the interface, and cannot be dynamically registered or deregistered on the interface.

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Question 29

In a switching network that has been enabled with STP protocol, the priorities of all the switches are the same. The MAC address of switch1 is 00-e0-fc-00-00-40,

MAC address of switch2 is 00-e0-fc-00-00-10, MAC address of switch3 is 00e0-fc-00-00-20, and MAC address of switch4 is 00-e0-fc-00-00-80. Which of the switches will be elected as the Root Bridge?

Switch1

Switch2

Switch3

Switch4

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Question 30

Which statements are false?

The VLAN mapping function is usually configured on the edge node of a public network.

The VLAN mapping function can save VLAN resources on a public network.

VLAN mapping allows private networks on different VLANs to communicate with each other over the ISP network.

VLAN mapping allows only the private networks on the same VLAN to communicate with each other.

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Question 21 (0)

Which of the following standards defines STP?

Question 22 (0)

Which statements about the PVID on the access interface are true?

Question 23 (0)

Which statement about ARP proxy is false?

Question 24 (0)

In RSTP network environment, a port can be set as edge port when it is directly connected with terminal.

Question 25 (0)

Which of the following statements about STP Designated Port is true?

Question 26 (0)

The following is the command output on a root switch of an MSTP region. How many switches are located in the MSTP region?

Question 27 (0)

If an MSTP switch detects that the neighboring switch works in RSTP mode, which mode does the MSTP switch work?

Question 28 (0)

When the GVRP registration mode is FIXED, which statement is true?

Question 29 (0)

In a switching network that has been enabled with STP protocol, the priorities of all the switches are the same. The MAC address of switch1 is 00-e0-fc-00-00-40, MAC address of switch2 is 00-e0-fc-

Question 30 (0)

Which statements are false?

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