Changing the Concept of H12-211 Exam Preparation 2023 [Q155-Q178]

Q155. To determine: the root bridge, root port and designated port.

Q156. How many port states are involved in RSTP?

Q157. Which of the following statements are true about PPP?

Q158. () dial-up access to remote access user authentication protocol to complete the authentication, authorization and accounting functions.

Q159. For project cutover, backup or adjustment of configuration files are not required during VRP upgrade, because lost files can be found in the recycle bin.

Q160. Layer 2 switches are data link layer devices that identify MAC addresses of Layer 2 data frames and forward Layer 2 data frames based on MAC addresses. In addition, they record mappings between MAC addresses and interfaces in the MAC address table.

Q161. GVRP protocol in () operation on the port

Q162. The Router-ID of OSPFv3 can be automatically generated by the system.

Q163. What is the length of the Traffic Class field in the IPv6 packet header?

Q164. The following configuration default routing commands are correct ()

Q165. The administrator performs the above configuration on the Router. After the completion, a switch is connected to the G1/0/0 interface of the router.
The IP address description of this host is correct ().
[Router]ip pool pool 1
[Router-ip-pool-pool 1]network 10.10.10.0 mask 255.255.255.0
[Router-ip-pool-pool 1] gateway-list 10.10.10.1
[Router-ip-pool-pool 1]quit
[Router]ip pool pool 2
[Router-ip-pool-pool 2]network 10.20.20.0 mask 255.255.255.0
[Router-ip-pool-pool 2] gateway-list 10.20.20.1
[Router-ip-pool-pool 2]quit
[Router]interface GigabitEthernet 1/0/0
[Router-GigabitEthernet 1/0/0] ip address 10.10.10.1.24
[Router-GigabitEthernet 1/0/0]dhcp select global

Q166. The topology and configuration are as shown in the figure. Then, an Eth Trunk logical link can be established between the two switches. And LSW2 is active end.

Q167. SNMP packets are carried over TCP.

Q168. The Router ID of the OSPF enabled router must be same as the IP address of an interface on the router?

Q169. A Windows host is started for the first time. If the IP address is obtained by DHCP, what is the source IP address of the first packet sent by this host?

Q170. Which of the following encapsulation modes is/are supported by IPsec VPN?

Q171. The following description of the principle of spanning tree protocol is correct

Q172. What is the encryption algorithm used by CHAP in PPP?

Q173. Port aggregation of multiple connection ports bundled into a logical connection, the bandwidth is tied after ().

Q174. On Huawei AR G3 Series routers, which authentication modes does AAA support? (Choose all that apply.)

Q175. When the packet is passed from the top to the lower, the head will be

Q176. After the GRE keepalive function is enabled, the local end of the GRE tunnel periodically sends a keepalive packet to the peer every 10 s.

Q177. In Huawei AR routers, by default, the value of the RIP priority is?

Q178. According to the following topology and configuration, R1 and R2 are connected through low-speed serial cables and PPP is used to encapsulate data link layer packets. When the Holdtime values of R1 and R2 are different, PPP negotiation and communication fail.