A large enterprise deploys WLAN in VRRP HSB mode to ensure network reliability.
In this networking mode, which of the following data backup modes are supported?(Select all that apply)

• A.Real-time backup
• B.Scheduled synchronization
• C.Batch backup
• D.Cloud backup

Comment: *

Name: *

Email: *

Verification: *

Which of the following descriptions of router classification in IS-IS is incorrect?

• A.Level-1 routers can establish adjacency relationships with Level-1-2 routers.
• B.Level-1 router cannot establish adjacency relationship with Level-2 router
• C.When configuring IS-IS on a Huawei router, by default, the global Level1 of the router is Level-1-2.
• D.The Level-2 LSDB only contains routing information for the area where the Level-2 router is located.

Comment: *

Name: *

Email: *

Verification: *

IGMP Snooping mainly solves the problem of?

• A.Legality of IGMP Report messages
• B.There are many receiver hosts on the network segment, and the router will receive many IGMP Report messages.
• C.Solve the problem of broadcasting multicast data packets on Layer 2 devices, and use them to manage and control the forwarding of multicast data packets
• D.The receiver host only supports the IGMPv2 protocol, but the SSM multicast model is used in the network

Comment: *

Name: *

Email: *

Verification: *

On an IS-IS network, each device needs to be configured with a network entity title (NET), which consists of three parts, each containing different fields. Which of the following fields are contained in the Area Address part?

• A.High Order DSP
• B.AFI
• C.IDI
• D.System ID

Comment: *

Name: *

Email: *

Verification: *

Which of the following statements regarding the stateful inspection firewall is true?

• A.When the stateful inspection firewall checks packets, packets of one same connection are not correlated.
• B.Because UDP is a connectionless protocol, so the stateful inspection firewall cannot match UDP packets with the status table.
• C.The stateful inspection firewall only needs to match the first data packet against a rule, and the subsequent packets of the connection are matched directly in the state table.
• D.The stateful inspection firewall needs to match the rules for each incoming packet.

Comment: *

Name: *

Email: *

Verification: *