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NEW QUESTION # 734
RSTP converges faster than STP because of? (Multiple choice)
- A. If a root port in the network fails, the optimal Alternate port in the network will become the root port and enter the Forwarding state
- B. In RSTP, after a port is elected as a designated port, it will first enter the Discarding state, and then quickly enter the Forwarding state through the Proposal/ Agreement mechanism
- C. If a designated port in the network fails, the optimal Alternate port in the network will become the designated port and enter the Forwarding state
- D. The concept of edge port is introduced in RSTP. The edge port does not participate in the RSTP operation, and can be directly transferred from Disable to Forwarding state
Answer: A,B,D
NEW QUESTION # 735
In BGP, Notification messages are used to request peers to resend routing information after routing policies are changed.
- A. TRUE
- B. FALSE
Answer: B
Explanation:
Notification Message Purpose
* BGP Notification messages are used to report errors or terminate a connection. They do not request peers to resend routing information after routing policies are changed.
* Routing updates following policy changes require manual resynchronization, not Notification messages.
HCIP-Datacom-Core Reference
* The purpose and usage of Notification messages are discussed in the BGP operation chapters.
NEW QUESTION # 736
As shown in the figure, R1 and R2 run OSPF, and the two routers can establish an adjacency relationship.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION # 737
Which of the following statements regarding DR/BDR are false?
- A. DR others listen on the network address 224.0.0.6.
- B. DR others listen on the multicast address 224.0.0.5.
- C. All DR others establish neighbor relationships with DR and BDR only.
- D. In a broadcast network, DR and BDR must be elected. A broadcast network without a DR or BDR cannot operate normally.
Answer: C
NEW QUESTION # 738
Which of the following option packets belong to OSPF protocol packets? (Multiple choice)
- A. Hello
- B. LSA
- C. LSU
- D. LSR
Answer: A,C,D
NEW QUESTION # 739
It is known that the MAC address of an interface is 0A-04-3B-45-1A-03, then the interface ID generated according to the IEEE EUI-64 specification is: ____-____-
____-____-____-____-1A- 03.
Answer:
Explanation:
08-04-3B-FF-FE-45
NEW QUESTION # 740
Which of the following statements regarding an IP prefix are true?
- A. An IP prefix filter is used to filter IP address prefixes and cannot match an IP prefix number and a prefix length at the same time.
- B. An IP prefix filter is used to filter IP address prefixes and can match an IP prefix number and a prefix length at the same time.
- C. An IP prefix filter can be used to filter data packets.
- D. An IP prefix filter cannot be used to filter data packets.
Answer: B
Explanation:
An IP prefix filter is designed to match both the IP address and its prefix length, making it suitable for filtering routing information rather than data packets. Options A and D are incorrect because IP prefix filters do not work directly on data packets, and they can match both prefix numbers and lengths .
NEW QUESTION # 741
Which of the following descriptions about OSPF Router ID is correct?
- A. When using the IP address of a physical interface as the Router ID of OSPF, the interface must be included in the corresponding OSPF domain.
- B. If the physical interface IP address is used as the OSPF Router ID, the one with the highest IP address will be selected as the OSPF Router ID of the device.
- C. Allow multiple devices to use the same Router ID, which also makes it easier to identify the area where the device is located.
- D. When the OSPF Router ID is not manually configured, the device first uses the IP address of the Loopback 0 interface as the Router ID.
Answer: D
NEW QUESTION # 742
During the process of BGP establishing a neighbor, if the TCP connection fails in the Active state, BGP will return to the idle state and retry the TCP connection.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION # 743
A VRRP virtual router is configured with a VRID of 3 and a virtual IP address of 100.1.1.10, so which of the following is the virtual C address?
- A. 01-00-5E-00-01-03
- B. 00-00-5E-00-01-03
- C. 00-00-5E-00-01-64
- D. 01-00-5E-00-01-64
Answer: B
NEW QUESTION # 744
ACL can be divided into which of the following categories? (Multiple choice)
- A. Layer 2 ACL
- B. Basic ACLs
- C. User-defined ACL
- D. Advanced ACLs
Answer: A,B,C,D
NEW QUESTION # 745
ON a stateful inspection Firewall where there is no session table, when the status detection mechanism is enabled and the second packet (CYN+ACK) of 3-way hadshakes reaches the firewall. Which of the following statements is true?
- A. Packets must pass the firewall, and a session table is established.
- B. If the firewall security policy permits packets to pass, the packets can pass the firewall.
- C. If the firewall security policy permits packets to pass, the session table is created.
- D. By default, when status detection is disabled and the permit policy is configured packets can pass.
Answer: B
NEW QUESTION # 746
If all parameters match, please arrange the various OSPF status changes under the Broadcast network type in order.
Answer:
Explanation:
NEW QUESTION # 747
Which of the following statements is false?
- A. When a router with the highest router priority joins an OSPF network, this router will become the new DR.
- B. A device with a higher router priority has a higher election priority.
- C. If the current DR fails, the current BDR automatically becomes a new DR, and a BDR will be elected again.
- D. If two devices have the same router priority, the device with a larger router ID has a higher election priority.
Answer: A
Explanation:
The election of a Designated Router (DR) and Backup Designated Router (BDR) occurs during the OSPF network's initial setup or upon the failure of an existing DR. A new router joining an OSPF network does not automatically preempt the current DR, even if it has the highest priority. DR and BDR elections are not preemptive.
NEW QUESTION # 748
In an IPv4 address space, Class D addresses are used for multicast. Among Class D addresses, which of the following is the permanent group address range reserved for routing protocols?
- A. 239.0.0.0 to 239.255.255.255
- B. 224.0.1.0 to 231.255.255.255
- C. 224.0.0.0 to 224.0.0.255
- D. 232.0.0.0 to 232.255.255.255
Answer: C
Explanation:
Permanent Group Addresses for Routing Protocols
* The range 224.0.0.0 to 224.0.0.255 is reserved for local network protocols, including routing protocols.
Examples include OSPF (224.0.0.5/6) and RIP (224.0.0.9).
HCIP-Datacom-Core Reference
* Reserved multicast address ranges are detailed in the multicast configuration sections.
NEW QUESTION # 749
ip ip-prefx List1 index 10 permit 10.1.0.0 24 greater-equal () less-equal 32 means that the first 24 bits of the matching network address are the same as 10.1.0.0, and the network mask length is greater than or equal to 26 and less than or equal to 32 routing.
Answer:
Explanation:
26
NEW QUESTION # 750
Packet loss only occurs at the sending end of the message.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION # 751
Which of the following characteristics does the IS-IS protocol have? (Multiple choice)
- A. Fast convergence when the network fails
- B. Suitable for high-volume routing delivery
- C. Improve the scalability of the network
- D. Can provide a loop-free network
Answer: A,B,C,D
NEW QUESTION # 752
Which of the following statements about the application of BFD is correct? (Multiple choice)
- A. BFD multi-hop detection means that BFD can detect any path between two systems. These paths may span many hops or may overlap in some parts.
- B. BFD single-hop detection refers to the IP connectivity detection of two directly connected systems
- C. The one-arm echo function refers to the loopback operation of BFD packets to detect the connectivity of the forwarding link
- D. The linkage between BFD and OSPF is to associate BFD and OSPF, and then notify OSPF through BFD's rapid detection of link failures, thereby speeding up OSPF 's response to network topology changes.
Answer: A,B,C,D
NEW QUESTION # 753
Which of the following descriptions about route aggregation in BGP are correct? (Multiple choice)
- A. Perform manual aggregation through the aggregate command, and add the keyword detail- suppressed to advertise both the aggregate route and the detailed route to the peer.
- B. BGP routes generated by automatic aggregation are better than BGP routes generated by manual aggregation.
- C. You can use the summary automatic command to generate automatic summary routes.
- D. You can manually generate aggregate routes in the BGP view through the aggregate command.
Answer: A,C,D
NEW QUESTION # 754
After the stack is split, the party that loses the MAD election will be in the __.
Answer:
Explanation:
Recovery
NEW QUESTION # 755
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