H3C GB0-372-ENU Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Switching Technology Fundamentals | - STP/RSTP/MSTP
|
| Topic 2: High Availability Technologies | - Link Aggregation
|
| Topic 3: H3C Switch Operations and Management | - Switch Management
|
| Topic 4: Layer 3 Switching | - IRF (Intelligent Resilient Framework)
|
H3CSE-RS-SW Sample Questions:
Question #1
Regarding root bridge protection, which of the following statements are correct? (Multiple choice)
A. The port will experience a transition from the Listening state to the Forwarding state. During this period, if the port does not receive a better BPDU, the port will return to the original forwarding state.
B. After configuring root bridge protection, if ports receive a high-priority BPDU, the status of these ports will be set to Listening and no longer forward packets.
C. If root bridge protection is not configured, the root bridge will lose its root bridge status if it receives a BPDU with a higher priority.
D. Root bridge protection is configured in port view
Question #2
MAC address () of the PIM-DM HELLO message.
Question #3
The customer LAN switches SWA, SWB, and SWC form the RRPP ring main ring 1. The switch SWA has the following configuration information:
[SWA] rrpp domain 1
[SWA-rrpp-domain1] control-vlan 4092
If the switch SWA ports GigabitEthernet1/0/1 and GigabitEthernet 1/0/2 are connected to the RRPP ring, what can we learn from the above information? (Multiple choice)
A. If SWA is a transmission node, when the RRPP ring is in a healthy state, the SWA primary port only allows VLAN 4092 to pass.
B. If SWA is the primary node, when the R&PP ring is in a healthy state, the SWA secondary port only allows VLAN 4092 to pass.
C. If SWA is a transmission node, the functions of GigabitEthernet1/0/1 and Gigabitethernet1/0/2 are the same.
D. If SWA is the master node, GigabitEthernet 1/0/1 and GigabitEthem1/0/1/0/2 have the same functions.
Question #4
The customer has two switches SWA and SWB connected together through a LAN. The two switches SWA and SWB form a link aggregation group. Check the aggregation group status on SWA as follows:
[SWA] display link-aggregation verbose
Loadsharing Type: Shar -- Loadsharing,NonS -- Non-Loadsharing Port Status: S -- Selected,U -- Unselected Flags: A -- LACP_Activity,B -- LACP_Timeout,C -- Aggregation,D -- Synchronization,E -- Collecting,F -- Distributing,G -- Defaulted,H -- Expired System ID: 0x8000,000f-e245-6bc0 Local:
Port StatusPriority Oper-KeyFlag GE1/0/1S 327682 {ACDEF}KOKOMADE
GE1/0/2S 327682 {ACDEF}KOKOMADE
GE1/0/3S 327682 {ACDEF}KOKOMADE
Remote:
ActorPartner Priority Oper-KeySystemID Flag
GE1/0/125327682 0x8000,000f-e23d-59f0 {ACDEF}KOKOMADE GE1/0/226327682 0x8000 000f- e23d-59f0 {ACDEF}KOKOMADE GE1/0/327327682 0x8000 000f-e23d-59f0 {ACDEF}KOKOMADE What can we learn from the above information?
A. A static aggregation group is established between switches SWA and SWB.
B. LACP priority is 0x8001
C. Link aggregation port bandwidth size 2G
D. A dynamic aggregation group is established between switches SWA and SWB.
Question #5
Which of the following about IGMP Snooping is correct? (Multiple choice)
A. Enabling IGMP Snooping on a Layer 2 device will allow you to create and maintain multicast forwarding entries at the data link layer, thereby forwarding multicast data normally at the data link layer.
B. Port fast leave means that when the switch receives an IGMP Leave message, it directly deletes the port from the corresponding forwarding table entry's outbound port list
C. You can configure both IGMP and IGMP Snooping in the same VLAN.
D. You can enable the unknown multicast group discard function on the switch. When the switch receives an unknown multicast data packet, it only forwards it to its router port and does not broadcast it within the VLAN.
Solutions:
| Question #1 Correct Answer: A,B,C,D | Question #2 Correct Answer: Only visible for members | Question #3 Correct Answer: B,C | Question #4 Correct Answer: D | Question #5 Correct Answer: B,D |
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