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NEW QUESTION # 31
Four links between two switches establish an Eth-Trunk in manual mode, and the bandwidth of each link is 1 Gbit/s. One of the links fails. Which of the following statements are true about this scenario? (Select all that apply)
Answer: B,D
Explanation:
In an Eth-Trunk working in manual mode, multiple physical member links are bundled into one logical interface to provide higher bandwidth and link redundancy. If one of four 1 Gbit/s member links fails, the Eth-Trunk does not go down as long as at least one valid member link remains active. Therefore, statement A is correct. Since one link has failed and three member links remain available, the total available bandwidth becomes 3 Gbit/s, so statement B is also correct.
NEW QUESTION # 32
Which of the following variables defined in Python code is invalid?
Answer: C
Explanation:
In Python, variable names must follow identifier rules: they cannot start with a digit. The variable
2_r1 is invalid because it begins with the number 2, which violates Python naming conventions.
The other variables are valid because they either start with letters or underscores and follow proper identifier rules.
NEW QUESTION # 33
Which of the following phases are required for establishing a connection between an SSH server and an SSH client? (Select all that apply)
Answer: A,B,C,D
Explanation:
The establishment of an SSH connection includes multiple mandatory phases that ensure both secure communication and authenticated access. First, the SSH client and server perform version negotiation to determine a mutually supported SSH protocol version. Then they carry out algorithm negotiation, during which they agree on the encryption algorithm, key exchange algorithm, integrity algorithm, and other security parameters to be used for the session.
After that, the peers perform key exchange, which is used to derive shared session keys securely over an insecure network. This stage is essential because it enables subsequent communication to be encrypted and protected against interception. Finally, once the secure channel has been established, user authentication is performed so that the server can verify the identity of the client user. This can be done using a password, public key, or other supported authentication method.
Therefore, all four options are required phases in the SSH connection establishment process.
HCIA-Datacom emphasizes these steps because SSH is a core secure management protocol used to replace insecure protocols such as Telnet and FTP in modern network operation and maintenance.
NEW QUESTION # 34
In the figure, both PC1 and PC2 belong to VLAN 10. Interface GE1/0/1 on SW1 is a trunk interface with the default PVID, and interface GE1/0/2 on SW1 is an access interface in VLAN 10. Which of the following statements are true about the forwarding of data frames between PC1 and PC2? (Select all that apply)
Answer: A,D
Explanation:
When a switch receives an untagged frame from a user host on an access interface, it associates that frame with the VLAN configured on the interface. In this scenario, PC1 and PC2 are in VLAN 10, and GE1/0/2 is an access interface in VLAN 10. After SW1 receives the frame from PC1, it internally associates the frame with VLAN 10, so option A is correct in the practical VLAN-processing sense used in HCIA-Datacom questions.
When the frame is forwarded out an access interface toward PC2, the switch sends it without a VLAN tag, because end hosts normally do not process 802.1Q tags. Therefore, option D is correct. Option B is incorrect because both hosts are in the same VLAN and can communicate normally; SW1 does not discard the return traffic for that reason. Option C is not correct in the standard VLAN switching model used by Huawei training, because the switch performs forwarding based on VLAN membership and internally processes the frame as belonging to VLAN 10. This question mainly checks understanding of access/trunk behavior and tag handling on ingress and egress.
NEW QUESTION # 35
Assume that the IP address of GE0/0/0 on R1 is 10.0.12.1/24. Multiple commands can be used to enable OSPF on this interface. Match the commands with their configuration views.
Answer:
Explanation:
Explanation:
ospf 1 # [R1]
area 0 # [R1-ospf-1]
network 10.0.12.1 0.0.0.0 # [R1-ospf-1-area-0.0.0.0]
ospf enable 1 area 0 # [R1-GE0/0/0]
Huawei devices support two common ways to enable OSPF on an interface.
The first method is the process-based method . In this method, you first enter system view, then enter the OSPF process view using ospf 1, so this command belongs to [R1] . After that, you enter the area view using area 0, so this command belongs to [R1-ospf-1] . Inside the area view, the command network 10.0.12.1
0.0.0.0 is used to match the interface with IP address 10.0.12.1, so it belongs to [R1-ospf-1-area-0.0.0.0] .
The second method is the interface-based method . In this method, OSPF is enabled directly under the interface using ospf enable 1 area 0, so this command belongs to [R1-GE0/0/0] .
This question tests the difference between global OSPF process configuration and direct interface OSPF enabling , both of which are standard Huawei OSPF configuration methods.
NEW QUESTION # 36
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