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NEW QUESTION # 122
Secure Shell (SSH) is a protocol that uses encryption and authentication mechanisms to implement network services, such as secure access and file transfer, securely over an insecure network. Which of the following protocols use SSH? (Select all that apply)
Answer: A,C,D
Explanation:
Several upper-layer management and file transfer protocols use SSH as their secure transport foundation. SFTP is the SSH File Transfer Protocol and operates over SSH, making option C correct. STelnet is secure Telnet implemented over SSH, so option D is also correct. NETCONF commonly uses SSH as its transport protocol for secure configuration management and device orchestration, making option B correct as well.
NEW QUESTION # 123
The administrator configures an Eth-Trunk in LACP mode between two switches, and sets the maximum number of active links in the Eth-Trunk to 3 and the number of remaining standby links to 1. If one of the active links fails, the two switches automatically adjust the number of active links to 2 through negotiation, and the standby link remains in the standby state.
Answer: B
Explanation:
This statement is false . In an Eth-Trunk operating in LACP mode , if the administrator sets the maximum number of active links to 3 and there is 1 standby link, then when one active member fails, LACP can automatically promote the standby member to active status. The purpose of the standby member is to maintain the configured active-link capacity whenever possible.
Therefore, after one active link fails, the normal expectation is not that the active-link count is reduced from 3 to 2 while the standby link remains idle. Instead, the standby link should participate and replace the failed member, so that the Eth-Trunk continues operating with 3 active links if the standby link and negotiation conditions are normal. This reflects the redundancy and fast recovery capabilities of LACP-based aggregation. HCIA-Datacom highlights that compared with manual mode, LACP provides more intelligent link selection, active/standby management, and fault adaptation. The statement is wrong because it ignores the intended behavior of the standby link in maintaining the number of active forwarding links after a failure.
NEW QUESTION # 124
R1 has four static routes, each of which has a reachable next hop. Given this static route configuration, what is the next hop of the route to 20.0.0.0/30 in R1's routing table?
Answer: D
Explanation:
All four configured static routes have the same destination prefix, 20.0.0.0/30, and the question states that every next hop is reachable. Huawei route selection first considers route preference when choosing among routes from the same or different route sources. For static routes, a smaller preference value means a higher priority. The four preferences shown are 60 for next hop 10.1.1.2, 70 for 10.1.2.2, 100 for 10.1.3.2, and 50 for
10.1.4.2. Because 50 is the smallest preference, the route through 10.1.4.2 is selected as the active route in the IP routing table. The other configured static routes can remain as lower-priority alternatives and may become active if the preferred route becomes invalid, depending on reachability and configuration. Equal-cost load balancing would require routes with the same relevant preference and cost after route selection. That is not the case here. Therefore, the next hop of the selected route to 20.0.0.0/30 is 10.1.4.2, making option A correct.
NEW QUESTION # 125
On the network shown in the figure, S2 serves as a DHCP server and has four address pools, R1 functions as a DHCP relay agent, and S1 is a DHCP client. Which of the following IPv4 addresses can be assigned to S1 through DHCP?
Answer: B
Explanation:
S1 is a DHCP client and will receive an IP address from the DHCP server S2 via the relay agent R1. The DHCP server has multiple pools, and only the pool matching the client-side network of S1 (192.168.1.0/24) applies. Therefore, the only valid address that can be assigned to S1 must come from the 192.168.1.0/24 subnet. Among the options, only 192.168.1.108/24 belongs to that correct address pool.
NEW QUESTION # 126
The traditional Fat AP networking usually applies to WLANs of small and micro stores. For a large-scale WLAN, the WAC + Fit AP networking is typically used. Which of the following statements are true about the WAC + Fit AP networking architecture? (Select all that apply)
Answer: A,D
Explanation:
In a WAC + Fit AP architecture, the WAC (Wireless Access Controller) centrally manages and controls the Fit APs, so option A is correct. Service configurations such as SSIDs, security policies, radio parameters, and access control are generally delivered from the WAC to the APs. The Fit AP mainly forwards wireless user traffic and executes the configuration issued by the controller.
Option D is also correct because a Fit AP provides 802.11 wireless access for stations (STAs) and serves as a bridge between the wireless side and the wired network. This is one of its basic roles in enterprise WLAN deployment. Option B is incorrect because users or administrators do not normally need to log in to each Fit AP individually to configure wireless services; centralized management by the WAC is the whole advantage of this architecture. Option C is incorrect because CAPWAP communication between the WAC and AP does not require Layer 2 adjacency ; the WAC and AP can communicate over Layer 3 as long as IP connectivity exists. HCIA-Datacom emphasizes centralized configuration, simplified operations, and scalable deployment as key benefits of WAC + Fit AP networking.
NEW QUESTION # 127
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