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NEW QUESTION # 51
In VRRP, when the device status changes to Master, it will immediately send free ARP to refresh the MAC table entry of the downstream device, thereby directing user traffic to this device.
Answer: B
NEW QUESTION # 52
There are the following states in the BGP neighbor establishment process, then the state machine sequence that a successful connection goes through is:
1. Active
2. OpenConfirm
3. Idle
4. Establish
5. OpenSent
Answer: D
NEW QUESTION # 53
A BGP device receives a route carrying an unknown attribute from a peer but does not know whether other devices need the attribute. In this case, the BGP device retains this attribute when advertising the route to other peers. Which of the following attributes is of this type?
Answer: B
Explanation:
Transitive vs. Non-Transitive Attributes
* The Community attribute is a transitive optional attribute, meaning that if a router receives a route with this attribute and does not understand its purpose, the router retains and propagates it to other peers.
* Other options, such as AS_Path and MED, are well-defined mandatory or optional attributes with specific purposes.
HCIP-Datacom-Core Reference
* The behavior of optional transitive attributes is detailed in the BGP protocol and attribute chapters.
NEW QUESTION # 54
A campus network uses OSPF for network communication. The display ospf peer command is run on a router, and the command output is as follows:
vbnet
Copy
Edit
<R2> display ospf peer
OSPF Process 1 with Router ID 10.0.2.2
Area 0.0.0.0 interface 10.0.235.2 (GigabitEthernet0/0/1)'s neighbors Router ID: 10.0.5.5 Address: 10.0.235.5 State: Full Mode: Nbr is Master Priority: 1 DR: 10.0.235.5 BDR: 10.0.235.3 MTU: 0 Dead timer due in 40 sec Area 0.0.0.0 interface 10.0.24.2 (Serial1/0/1)'s neighbors Router ID: 10.0.4.4 Address: 10.0.24.4 State: Full Mode: Nbr is Master Priority: 1 DR: None BDR: None MTU: 0 Dead timer due in 35 sec Which of the following statements are true about the device?
Answer: A,C,D
Explanation:
Analysis of the OSPF Neighbor State:
Router ID 10.0.5.5:
On interface 10.0.235.2 (GigabitEthernet0/0/1), the neighbor state is Full, indicating that adjacency is established.
The Designated Router (DR) is 10.0.235.5, which is the same as the neighbor's address.
Router ID 10.0.4.4:
On interface 10.0.24.2 (Serial1/0/1), the neighbor state is also Full, meaning adjacency is established. The DR/BDR election status shows None, indicating that the interface is on a point-to-point link where DR/BDR election does not apply.
NEW QUESTION # 55
As shown in the figure, the network layers of R1 and R2 are directly connected, and there are layer- 2 transmission devices S71 and S72 in the middle of the link.
Now the user hopes that the devices at both ends can quickly sense the failure of the intermediate link, thereby triggering rapid route convergence, which of the following detection mechanisms should be configured?
Answer: C
NEW QUESTION # 56
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