H12-221_V2.5 HCIP-Routing & Switching-IERS V2.5 Exam Dumps

H12-221_V2.5 Free Dumps HCIP-Routing & Switching-IERS V2.5 https://www.passcert.com/H12-221_V2.5.html

1. When the Access port sends a data frame, which of the following steps will be processed?

A. Strip TAG forwarding B. Sign up for PVID forwarding C. Replace VLAN TAG forwarding D. Send TAG message Answer: A

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2. An ACL rule is: rule 5 permit ip source 10.0.1.0 0.0.254.255, which of the following IP addresses can be matched by the permit rule?(Multiple choice) A. 10.0.4.5 B. 10.0.2.3 C. 10.0.1.2 D. 10.0.3.4 Answer: CD

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3.Compared with STP, which of the following port roles are newly defined in RSTP? (Multiple choice) A. Alternate port B. Root port C. Specify the port D. Backup port Answer: AD

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4. Which of the following port states does not include the RSTP protocol?

A. Discarding B. Forwarding C. Learning D. Blocking Answer: D

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5. In the OSPF protocol, what are the following functions of DR and BDR? (Multiple choice) A. Reduce the types of OSPF protocol messages.

B. Reduce the number of exchanges of link state information.

C. Reduce the time for establishing adjacency relations.

D. Reduce the number of adjacent relationships.

Answer: BCD

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6. When the host frequently moves, which of the following VLA division methods is most appropriate?

A. Based on strategy division B. Based on MAC address division C. Based on port division D. Based on IP subnet division Answer: B

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7. Which of the following descriptions about the link aggregation are correct? (Multiple choice) A. Eth-Trunk interfaces cannot be nested.

B. GE interface and E interface cannot join the same Eth-Trurnk interface.

C. GE electrical interfaces and GE optical interfaces cannot be added to the same Eth-Trunk interface.

D. When two devices are connected, it is necessary to ensure that the link aggregation mode on both devices is the same.

Answer: ABCD

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8. In the STP protocol, which of the following factors will affect the election of the root switch? (Multiple choice) A. The MAC address of the switch B. Switch interface C. Bandwidth back to switch interface ID D. Switch priority Answer: AD

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9. In the RSTP protocol, when the root port fails, which of the following ports will quickly convert to the new root port and immediately enter the forwarding state?

A. Forwarding port B. Backup port C. Edge port D. Alternate port Answer: B

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10. Which packet does the OSPF protocol use to discover and maintain neighbor relationships?

A. LSR B. Hello C. LSU D. DD Answer: B

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