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| Section | Objectives |
|---|---|
| IP Telephony Basics | |
| Deployment and Maintenance | |
| Enterprise Communication Solutions | - Huawei eSpace Architecture - Unified Communications Services |
| Collaboration Fundamentals | |
| Network Fundamentals for Collaboration | - QoS Concepts - RTP and Media Transport |
| VoIP Protocols | - H.323 Protocol Basics - SIP Protocol Basics |
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NEW QUESTION # 21
In the video-conferencing endpoint projection scenario, when the IdeaShare client is used to project a PC screen, make sure the PC and endpoint are on the same LAN and can communicate with one another.
Answer: B
Explanation:
Huawei IdeaShare provides wireless presentation-sharing capabilities that allow users to project computer content onto compatible video conferencing endpoints without using a dedicated physical video cable.
When the IdeaShare software client is used, successful projection requires network connectivity between the computer and the target conferencing endpoint. Huawei's Lab Guide explicitly specifies that the PC and endpoint must be on the same local area network and capable of communicating with each other.
The IdeaShare client establishes a software-based projection session using the endpoint's network services.
During configuration, the user installs the IdeaShare application, launches it, enters the projection code displayed by the endpoint, and initiates screen sharing.
If the PC and endpoint cannot communicate, the projection session may fail even when the application and projection code are correct.
This requirement differs from IdeaShare Key projection, which uses a supported wireless connection mechanism and does not require the computer and endpoint to share the same LAN.
Option A is therefore correct.
For troubleshooting, administrators should verify the PC's network connection, the endpoint's IP connectivity, and the availability of the required network communication path before investigating application-specific problems.
Huawei reference: Lab Guide, Section 1.3.1.7, Local Projection and Sharing (IdeaShare Software), PDF pages 28-30; Training Material, Computer Client Projection.
NEW QUESTION # 22
Which of the following statements about IdeaHub configuration-management operations is false?
Answer: C
Explanation:
Huawei IdeaHub provides configuration-management functions that allow administrators to back up, restore, import, and export endpoint settings.
Option A is supported. Huawei recommends exporting the existing configuration before restoring an endpoint to factory settings. Previously exported settings can subsequently be imported, avoiding the need to reconfigure every parameter manually.
Option C is consistent with the backup-and-restore workflow. A configuration backup must exist before the endpoint can restore settings from that backup.
Option D describes restoration of previously backed-up configuration. Huawei's endpoint configuration- management interface supports restoration and indicates that the endpoint will restart automatically after backup settings have been restored. Consequently, restoration involves applying the saved configuration and completing the associated restart procedure.
Option B is the intended exception. The documented import procedure requires administrative access to the endpoint web interface, but the supplied guides do not identify a separate mandatory administrator-password entry specifically for importing a configuration file.
Verification concern: The Huawei guides do not explicitly state that an additional password is unnecessary.
Furthermore, option D uses the word immediately, although the documented operation includes an endpoint restart. Thus, B is the most defensible intended answer, but the question is not conclusively resolved by the supplied materials and should be flagged before publication.
Huawei reference: Training Material, PDF page 396, Backup; pages 251-252, Backup and Restore and Import & Export.
NEW QUESTION # 23
After signing in, which of the following menus can a common user use?
Choose three
Answer: B,C,D
Explanation:
Huawei SMC provides different conference portal interfaces according to the role assigned to the authenticated user. Common users have access to personal conference scheduling, conference templates, conference records, and user-level conference settings.
Option B is correct because common users can schedule conferences through the conference portal. The supported conference types include instant, scheduled, and recurring conferences, subject to the user's permissions and available resources.
Option C represents a supported capability because common users can view and manage scheduled conferences associated with their accounts. Huawei's role-permission documentation explicitly includes viewing scheduled and historical conferences among common-user capabilities.
Option D is correct because common users can access their default conference parameters. These settings allow users to customize applicable conferencing preferences without changing system-wide defaults.
Option A is not part of the common-user navigation shown in the supplied Training Material. The dedicated Active Conferences menu appears in the conference administrator interface.
Verification concern: Huawei's common-user portal screenshot identifies My Conferences rather than a separate Scheduled Conferences navigation menu. Therefore, option C describes an available function but does not reproduce the exact menu label shown in the V4.0 interface. The intended answer is B, C, D, but the question should be corrected if exact menu names are being tested.
Huawei reference: Training Material, PDF pages 643-646, Layout of the Conference Portal and Modifying Default Conference Settings; page 703, User Management (2).
NEW QUESTION # 24
Which statement correctly describes the functions of the RTP protocol?
Answer: C
Explanation:
Real-time Transport Protocol (RTP) is responsible for transporting time-sensitive media streams, including audio and video, across IP networks.
RTP provides mechanisms such as sequence numbering and timestamps that allow receiving endpoints to identify packet ordering and support the timely reconstruction and playback of real-time media.
Option C is correct because RTP is the protocol used to carry real-time media streams within an established multimedia communication session.
Option A describes the role of Session Description Protocol (SDP). SDP communicates media characteristics and negotiation information, including supported codecs, transport addresses, and media parameters.
Option B describes Session Initiation Protocol (SIP). SIP is responsible for initiating, modifying, and terminating communication sessions through signaling messages.
Option D describes Real-time Transport Control Protocol (RTCP). RTCP works alongside RTP to monitor media-stream transmission characteristics and provide control information, including reception statistics and quality-related feedback.
Huawei's Training Material explicitly distinguishes these protocol responsibilities in its introduction to SIP.
An important technical distinction is that RTP supports real-time delivery mechanisms but does not independently guarantee packet delivery, eliminate network congestion, or ensure a fixed transmission delay.
Overall media quality depends on the network and associated quality-control mechanisms.
Huawei reference: Training Material, PDF pages 93-94, Location of SIP on the Network and Introduction to SIP (1).
NEW QUESTION # 25
Which of the following are the primary purposes of a remote video loopback test?
Choose two
Answer: B,D
Explanation:
A remote video loopback test examines the video-processing and network-transmission path between two conferencing endpoints.
Huawei's Training Material explains that, during a remote loopback test, media data is transmitted from the local endpoint to the remote endpoint and subsequently returned to the local endpoint for examination.
Option B is correct because the test evaluates the transmission path between the endpoints. Network-related problems, including packet loss, excessive jitter, and connectivity faults, may affect the quality of the returned video.
Option C is correct because the loopback path includes the remote video-processing module. A failure within this module can influence the video returned to the originating endpoint.
Option A is not the primary purpose of remote loopback testing. Local video input should first be checked using local video diagnostics or a local loopback test.
Option D is also not a primary remote-loopback objective. Local display problems can be investigated through local display diagnostics and video-output checks.
Huawei explicitly identifies remote video module and network transmission as the diagnostic targets associated with remote video loopback testing.
The practical value of this test is its ability to extend fault isolation beyond the local endpoint and examine the end-to-end media path involving the remote device.
Huawei reference: Training Material, PDF page 394, Loopback Test, including the diagnostic-method and signal-flow table.
NEW QUESTION # 26
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