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NEW QUESTION # 32
On a switched network, the administrator has completed the VLAN-related configuration shown in the figure on SW1. If the administrator runs the ping 192.168.1.2 command on PC1, the ping will fail.
Answer: B
Explanation:
Both switch ports shown in the exhibit are configured as trunk ports and VLAN 10 is permitted, but the configuration does not change the trunk PVID from its default value of VLAN 1. On Huawei switches, untagged frames received on a trunk interface are associated with the interface PVID. A normal PC sends untagged Ethernet frames, so traffic from both PC1 and PC2 is classified into VLAN 1. VLAN 1 is permitted on a trunk by default unless it is explicitly removed with an undo port trunk allow-pass vlan 1 command. As a result, the two PCs remain in the same Layer 2 broadcast domain through VLAN 1 and can exchange ARP and ICMP traffic. Merely adding VLAN 10 to the allowed VLAN list does not force untagged host traffic into VLAN 10. Therefore, the statement that pinging 192.168.1.2 from PC1 must fail is incorrect. The correct response is FALSE, option B.
NEW QUESTION # 33
When a Huawei device functions as an SSH client to log in to another network device for the first time, the ssh client first-time enable command must be run to enable the first-time login function of the SSH client. Otherwise, the login fails.
Answer: B
Explanation:
The SSH client first-time authentication behavior on Huawei devices is not dependent on a mandatory "ssh client first-time enable" command. The SSH client can initiate first-time login by handling host key verification interactively or through default trust behavior depending on configuration, so login failure does not inherently occur without enabling this command.
NEW QUESTION # 34
With the development of data centers, a large number of services are deployed on virtual machines (VMs).
The original VLAN isolation solution cannot achieve isolation between so many VMs. VXLAN uses VXLAN Network Identifiers (VNIs) to provide a larger range than VLAN IDs, so that a larger number of VMs can be isolated.
Answer: B
Explanation:
This statement is true . Traditional VLANs use a 12-bit VLAN ID , which means that only about 4094 usable VLANs are available. In modern data centers, especially in cloud and virtualization environments, that scale is often insufficient because a very large number of tenants, services, and virtual machines need isolated network segments.
VXLAN addresses this limitation by introducing the VNI (VXLAN Network Identifier) , which is 24 bits long. This allows support for up to about 16 million logical segments , greatly expanding the number of isolated Layer 2 networks that can be created across an IP underlay. Because of this, VXLAN is widely used in modern data centers to provide scalable tenant isolation, flexible service deployment, and large Layer 2 extension across physical boundaries. HCIA-Datacom highlights VXLAN as a key overlay technology that solves the VLAN scale problem in virtualized data center environments. It allows a much larger number of VMs and tenants to be isolated than traditional VLAN-based solutions can support, making it essential for modern cloud-oriented and large-scale data center networking.
NEW QUESTION # 35
On a campus network, SW1, an access switch, has 24 downlink Interfaces, all of which belong to VLAN 1 by default. The administrator adds interfaces 1 to 8 of SW1 to VLAN 2 and interfaces 9 to
16 to VLAN 3, and retains the default VLAN for other interfaces. In this case, all downstream devices connected to SW1 belong to the same broadcast domain.
Answer: B
Explanation:
VLANs define separate broadcast domains. In this case, interfaces are divided into VLAN 1, VLAN 2, and VLAN 3, so downstream devices connected to SW1 are distributed across multiple VLANs. Devices in different VLANs belong to different broadcast domains, meaning the entire switch does not form a single broadcast domain.
NEW QUESTION # 36
Drag and Drop Question
ACLs can be classified into basic ACLs, advanced ACLs, and Layer 2 ACLs based on the rule type. Drag the ACL rules to the correct positions.
Answer:
Explanation:
Explanation:
Basic ACL → Defines packet filtering rules based on source IPv4 addresses, fragment information, and effective time ranges.
Advanced ACL → Defines packet filtering rules based on source/destination IPv4 addresses, IP protocol types, TCP/UDP port numbers, fragment information, and effective time ranges.
Layer 2 ACL → Defines packet filtering rules based on Ethernet frame headers such as MAC addresses, VLAN IDs, and Layer 2 protocol types.
Basic ACLs operate mainly on source IP-related criteria. Advanced ACLs provide extended filtering using Layer 3 and Layer 4 information such as destination IPs and port numbers. Layer 2 ACLs work at the Ethernet frame level and filter traffic based on MAC addresses, VLAN IDs, and other Layer 2 fields.
NEW QUESTION # 37
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