Pay attention on Pass-king H12-261_V3.0-ENU Practice Materials, clear exam 100% for sure

The OSPF protocol is running on a company network. To understand the OSPF mechanism to perform packet capture operations on the network, which of the following description about the OSPF packet is correct? (Multiple Choice)

• A. After receiving the LS Update message, the router must send LS Ack to confirm.
• B. The LS Update message is sent only when the adjacency is established.
• C. LS Update message synchronizes the link state database by sending detailed LSA information.
• D. Sending Hello packets immediately after the interface joins the OSPF area.

Which TLV does IS-IS use to describe the IP Interface Address?

• A. 128
• B. 131
• C. 132
• D. 129

In the command aggregate ipv4-address {mask | mask-length} [ as-set | attribute-policy route-policy-name1 | detail-suppressed | origin-policy route-policy-name2 | suppress-policy route-policy-name3], multiple parameters can be used to influence the summary route and its results.
What is the correct description about this command? (Multiple Choice)

• A. If Attribute-policy is configured, you can change the attributes of the aggregated route.
• B. If the Origin-policy is configured, only the detailed routes matching the Route-policy can participate in the aggregation.
• C. If As-set is configured, AS_ATH of the summary route contains AS path information of all specific routes to prevent routing loops.
• D. If the Suppress policy is configured, the aggregated route is generated. The if-match clause of the route-policy is used to select the detailed route to be suppressed. The detailed route matching the route-policy is still advertised to other BGP neighbors.

Which of the following description is wrong about the MAC address spoofing attack?

• A. MAC address spoofing attacks will cause the switch to learn the wrong mapping relationship between Mac address and IP address
• B. MAC address spoofing attacks will cause the data that the switch to send to the correct destination is sent to the attacker
• C. Attackers can implement MAC address spoofing attacks by sending data frames with forged source Mac addresses to the switch
• D. MAC address spoofing attacks mainly use the switch Mac address learning mechanism

LDP messages are exchanged between LSRs running the LDP protocol. LDP messages can be divided into four types according to their functions. Which of the following is not an LDP message type?

• A. Label exchange messages
• B. Announcement
• C. Discovery
• D. Conversation message