NO.238 Hybrid port can be connected to user host and other switches.

NO.239 The information shown in the figure is the port status information displayed on a switch running STP. According to this information, which of the following description is wrong?

NO.240 The tree network topology is actually a hierarchical star structure, which is easy to expand the network scale, but the higher the level, the more serious the network problem caused by the node failure.

NO.241 Which of the following attributes cannot be used as a parameter to measure Cost? (Multiple choice)

NO.242 In which view can the administrator modify the device name for the router?

NO.243 The switch receives a unicast data frame. If the destination MAC of the data frame can be found in the MAC table, the data frame will be forwarded from the corresponding MAC port.

NO.244 In the network shown in the figure below, from a security perspective, router A refuses to receive OSPF packets and ICMP packets received from the cO/0/1 interface. Which of the following commands can achieve this requirement? (Multiple Choice)

NO.245 What kind of message does the OSPF protocol use to confirm the received LSU message?

NO.246 Which WLAN security policies support the link authentication method of Open mode? (Multiple Choice)

NO.247 As shown in the figure, the two switches use the default parameters to run STP, the configuration command STP root primary is used on switch A, and the configuration command STP priority 0 is used on switch B.
Then which port will be blocked?

NO.248 Now there are the following four segments: 10.24.0.0/24, 10.24.1.0/24, 10.24.2.0/24, 10.24.3.0/24, which route can point to these four network segments at the same time? (Multiple Choice)

NO.249 The function of 0SPF hello message is (). (Multiple Choice)

NO.250 As shown in the figure below, router A has Telnet router B through IP address 10.0.12.2. In the current interface, which of the following operations will cause the Telnet session of Router A and Router B to be interrupted? (Multiple Choice)

NO.251 As shown in the figure, the switch runs STP with default parameters, which of the following ports will be elected as the designated port?

NO.252 If the network address of a network is 10.1.1.0/30, what is its broadcast address?

NO.253 The network administrator hopes to effectively use the IP address of the 192.168.176.0/25 network segment. Now that the company’s marketing department has 20 hosts, which of the following is the best address segments allocated to the marketing department?

NO.254 How many bits are there in the VLAN ID in the VLAN format defined by IEEE802.1Q?

NO.255 When the LACP mode is used for link aggregation, what is the default system interference level of Huawei switches?

NO.256 What is the role of the command port trunk allow pass vlan all?

NO.257 Which statement is wrong about the ARP message?