HCIP-Routing & Switching-IERS V2.5 H12-221_V2.5 Questions and Answers

1. H12-221_V2.5 Free Questions H12-221_V2.5 Free Questions HCIP-Routing & Switching-IERS V2.5 HCIP-Routing & Switching-IERS V2.5 https://www.passquestion.com/ https://www.passquestion.com/H12-221_V2.5 H12-221_V2.5.html .html

2. Question 1 Question 1 When the Access port sends a data frame, which of the following steps will be processed? When the Access port sends a data frame, which of the following steps will be processed? A. Strip TAG forwarding A. Strip TAG forwarding B. Sign up for PVID forwarding B. Sign up for PVID forwarding C. Replace VLAN TAG forwarding C. Replace VLAN TAG forwarding D. Send TAG message D. Send TAG message Answer: A Answer: A

3. Question 2 Question 2 Which of the following parameters is used in the spanning tree protocol for root bridge election? Which of the following parameters is used in the spanning tree protocol for root bridge election? A. Root path cost A. Root path cost B. Bridge ID B. Bridge ID C. Bridge priority C. Bridge priority D. Port ID D. Port ID Answer: B Answer: B

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

5. Question 4 Question 4 Which of the following port states does not include the RSTP protocol? Which of the following port states does not include the RSTP protocol? A. Discarding A. Discarding B. Forwarding B. Forwarding C. Learning C. Learning D. Blocking D. Blocking Answer: D Answer: D

6. Question 5 Question 5 In the OSPF protocol, what are the following functions of DR and BDR? (Multiple choice) In the OSPF protocol, what are the following functions of DR and BDR? (Multiple choice) A. Reduce the types of OSPF protocol messages. A. Reduce the types of OSPF protocol messages. B. Reduce the number of exchanges of link state information. B. Reduce the number of exchanges of link state information. C. Reduce the time for establishing adjacency relations. C. Reduce the time for establishing adjacency relations. D. Reduce the number of adjacent relationships. D. Reduce the number of adjacent relationships. Answer: BCD Answer: BCD

7. Question 6 Question 6 When the host frequently moves, which of the following VLA division methods is most appropriate? When the host frequently moves, which of the following VLA division methods is most appropriate? A. Based on strategy division A. Based on strategy division B. Based on MAC address division B. Based on MAC address division C. Based on port division C. Based on port division D. Based on IP subnet division D. Based on IP subnet division Answer: B Answer: B

8. Question 7 Question 7 Which of the following descriptions about the link aggregation are correct? (Multiple Which of the following descriptions about the link aggregation are correct? (Multiple choice) choice) A. Eth-Trunk interfaces cannot be nested. A. Eth-Trunk interfaces cannot be nested. B. GE interface and E interface cannot join the same Eth-Trurnk interface. 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- C. GE electrical interfaces and GE optical interfaces cannot be added to the same Eth- Trunk interface. Trunk interface. D. When two devices are connected, it is necessary to ensure that the link aggregation D. When two devices are connected, it is necessary to ensure that the link aggregation mode on both devices is the same. mode on both devices is the same. Answer: ABCD Answer: ABCD

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

10. Question 9 Question 9 In the RSTP protocol, when the root port fails, which of the following ports will quickly convert to 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? the new root port and immediately enter the forwarding state? A. Forwarding port A. Forwarding port B. Backup port B. Backup port C. Edge port C. Edge port D. Alternate port D. Alternate port Answer: B Answer: B

11. Question 10 Question 10 Which of the following functions does the command port trunk allow-pass vlan al1 do? Which of the following functions does the command port trunk allow-pass vlan al1 do? A. All VLAN data frames are allowed to pass through this port. A. All VLAN data frames are allowed to pass through this port. B. The opposite port connected to the port must be configured with port trunk permit vlan all at the B. The opposite port connected to the port must be configured with port trunk permit vlan all at the same time. same time. C. If the port default vlan 3 command is configured for the connected remote device, the VLAN 3 C. If the port default vlan 3 command is configured for the connected remote device, the VLAN 3 between the two devices cannot communicate. between the two devices cannot communicate. D. The connected peer device can dynamically determine which VLAN IDs are allowed to pass. D. The connected peer device can dynamically determine which VLAN IDs are allowed to pass. Answer: A Answer: A