NO.87 Which of the following descriptions is wrong?

NO.88 In the data planning of the POL campus network, which of the following descriptions about VLAN planning are reasonable? (Multiple choice)

NO.89 Similar to the command-line configuration method, generally, the MxU does not perform service configuration delivery through the OMCI channel. In eSight, similarly, only small ONT can be deployed with zero configuration, and large MxU cannot be deployed with zero configuration.

NO.90 Multicast technology effectively solves the problem of single-point sending and multi-point receiving, and realizes efficient point-to-multipoint data transmission in the IP network.

NO.91 The content of VLAN design mainly includes scenarios description of VLAN assignment, VLAN assignment principles, etc. What are the VLANs included here? (Multiple choice)

NO.92 The number of users under the OLT can also decide whether the VLAN is a single-layer or double-layer VLAN. When the number of users is small, a single-layer VLAN can be used. When the required VLAN to distinguish the number of services and users is greater than ( ), a double-layer LAN must be used.

NO.93 In the value-added service general template of the ONT configured on the U2000, the WAN port capacity of WAN port-by-port management is enabled by default, and needs to be changed to disable.

NO.94 Which of the following belongs to OLT uplink networking protection? (Multiple choice)

NO.95 Rules can be formulated based on link layer information such as source MAC address, VLAN ID, Layer 2 protocol type, destination MAC address, etc. What is the ACL for data processing?

NO.96 The complete SIP message interaction process will include multiple request and response messages. A field can be used in the header field of the SIP message to describe the specific request corresponding to the current response message. This field is:

NO.97 When the invitation message sent by user A reaches user B after passing through servers C, D, and E, the server address recorded in the VIA field in the message received by user B from top to bottom is:

NO.98 If the quick leave function of multicast users is enabled, users can get a better service experience when switching channels.

NO.99 There are many protection methods for OLT dual uplinks. Which of the following technologies can be used as OLT dual uplinks? (Multiple choice)

NO.100 DHCP Option 82 switches are divided into four levels, global level, port level, service virtual port level and VLA level. This function can be achieved without fully opening the switches at each level.

NO.101 In order to prevent network monitoring in the GPON system, the most used method is:

NO.102 The maximum splitting ratio supported by 10GEPON is?