H3C GB0-372-ENU - H3CSE-RS-SW

As shown in the figure, the switches are all running RSTP. Initially, SWA, SWB and SWC are interconnected. When the topology is stable, SWB and SWD are connected. Which of the following statements are correct? (Multiple choice)

• A. After SWA receives the BPDU with TC set, it will clear all MAC address tables and send the RST BPDU with TC set from E0/2.
• B. SWB will send a RST BPDU with TC set within twice the Hello Time.
• C. SWB will clear the MAC addresses learned on ports E0/1 and E0/2 and send RST BPDUs with TC set from these two ports.
• D. After receiving the BPDU with TC set, SWC will clear the MAC address learned on port E0/1 and send a RST BPDU with TC set from the port.

Regarding the relationship between RSTP and STP, which of the following is correct statement?

• A. RSTP is defined in the old EE802.1 D standard. Its protocol concept is the same as STP, but it has improved the convergence time.
• B. RSTP has all the functions of STP, but it only uses one type of BPDU
• C. RSTP can realize load sharing of data from different VLANs on Trunk links based on STP.
• D. Switches running RSTP can work together with switches running STP and improve the convergence time of STP.

XYZ Company requires to build its network based on modular enterprise network architecture. XYZ Company has a research and development base in Shenzhen and Xi'an, an office building in Beijing and Shanghai, offices with more than 50 people in 23 provincial capitals, and technicians on business trips in
23 provincial capitals. Due to environmental and cost issues, some offices cannot connect to the headquarters through dedicated lines or packet switching wide area network connections. Based on these conditions, which of the following network module that XYZ Company should have? (Multiple choice)

• A. Dedicated line and packet switching access
• B. Large branch network
• C. VPN access
• D. Remote | Distributed Office Network

Which of the following statements about SOA and ITolP is correct? (Multiple choice)

• A. ITolP solution embodies the core idea of SOA
• B. SOA solutions require the integration of IT infrastructure and the construction of a unified IT infrastructure platform based on network technology.
• C. ITolP allows for flexible, rapid, and efficient construction of enterprise intelligent applications, and can quickly adapt to changes in enterprise business processes
• D. SOA is based on the network, eliminates the information gap caused by heterogeneous systems, integrates storage, security, multimedia and other services, and realizes the componentization and resourceization of IT infrastructure.

In the network shown in the figure, the PIMSM protocol is running between RT1, RT2 and RT3, the RP is 1.1.1.1, and there is a multicast source connected to the downstream receiver RT3. Check the RT3 unicast routing table as follows:
[RT3] display ip routing-table Routing Tables: Public Destinations: 10 Routes: 10 Destination/MaskProtoPreCost NextHop Interface
1.1.1.1/32 OSPF 10 1562 192.168.2.1 s0/2/1
127.0.0.0/8 Direct 00 127.0.0.1 In Loop 0
127.0.0.1/32 Direct 00 127.0.0.1 In Loop 0
192.168.0.0/30 Direct 00 192.168.0.2 S0/2/0
192.168.0.1/32 Direct 00 192.168.0.1 S0/2/0
192.168.0.2/32 Direct 00 127.0.0.1 In Loop 0
192.168.1.0/30 OSPF 10 3 124 192.168.2.1 S0/2/1
192.168.2.0/30 Direct 00 192.168.2.2 so/2/1
192.168.2.1/32 Direct 00 192.168.2.1 so/2/1
192.168.2.2/32 Direct 00 127.0.0.1 In Loop 0
Then, when the RP sends a registration stop message, which of the following routers have (S, G) entries? (Multiple choice)

• A. RT1
• B. RT3
• C. RT2