Find Interview Questions for Sip

Right Answer:
Telecommunications is the transmission of information over distances using electronic means, such as phones, internet, and satellite systems. It is important because it enables communication, facilitates business operations, connects people globally, and supports the exchange of information in various sectors like education, healthcare, and emergency services.

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Circuit-switched networks establish a dedicated communication path between two endpoints for the duration of the call, while packet-switched networks divide data into packets that are sent independently over shared networks, allowing multiple communications to occur simultaneously without a dedicated path.

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Lightweight UDP Protocol would be acceptable in situations where low latency is critical, such as real-time applications (e.g., VoIP, online gaming), where occasional data loss is tolerable, and where overhead needs to be minimized, such as in IoT devices or streaming media.

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A peer-to-peer (P2P) network is a decentralized network where each computer (peer) can act as both a client and a server, allowing them to share resources and communicate directly with each other without needing a central server.

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The CPU, or Central Processing Unit, is the main component of a computer that performs calculations and executes instructions, effectively acting as the brain of the computer.

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The allocation for MNREGA in the budget 2017-18 was ₹48,000 crores.

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Simple Network Management Protocol (SNMP) is a standard protocol used for managing and monitoring network devices such as routers, switches, and servers. It allows network administrators to collect information, configure devices, and receive alerts about network performance and issues.

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A softphone is a software application that allows users to make voice calls over the internet using a computer or mobile device, while an IP phone is a physical device specifically designed for VoIP calls. The main difference is that a softphone runs on software, whereas an IP phone is a hardware device.

Right Answer:
To set up a VoIP system, you need the following hardware:

1. VoIP phones (IP phones or softphones)
2. Network router
3. Switch (if using multiple devices)
4. VoIP gateway (for connecting to traditional phone lines)
5. Internet connection (broadband)
6. Power over Ethernet (PoE) switch or power adapters (for IP phones)

Right Answer:
VoIP spoofing is when a caller disguises their identity by falsifying the caller ID information in VoIP communications. It can be prevented by implementing security measures such as using strong authentication methods, enabling encryption (like SRTP), employing firewalls, and utilizing intrusion detection systems to monitor and block suspicious activities.

Right Answer:
1. Cost savings on calls, especially long-distance.
2. Flexibility to use on various devices (phones, computers).
3. Advanced features like video calling, voicemail to email, and call forwarding.
4. Easier to scale and add new lines or features.
5. Integration with other services and applications (e.g., CRM).
6. Improved call quality with high-speed internet.
7. Mobility, allowing calls from anywhere with internet access.

Right Answer:
QoS (Quality of Service) is a set of technologies and techniques used to manage network resources and ensure the performance of VoIP calls by prioritizing voice traffic over other types of data. It is implemented in VoIP through methods such as traffic shaping, prioritization of voice packets, bandwidth reservation, and using protocols like RSVP (Resource Reservation Protocol) to ensure low latency, minimal jitter, and reduced packet loss for voice communications.

Right Answer:
The challenges in deploying 5G networks include:

1. High infrastructure costs for new base stations and equipment.
2. Need for dense network coverage due to higher frequency signals having shorter range.
3. Integration with existing 4G networks and legacy systems.
4. Regulatory and zoning issues for site approvals.
5. Ensuring cybersecurity and data privacy.
6. Managing the increased complexity of network management and operations.
7. Limited availability of compatible devices initially.

Right Answer:
The different frequency bands used in 5G networks are:

1. Low-band (Sub-1 GHz)
2. Mid-band (1 GHz to 6 GHz)
3. High-band (Millimeter Wave, above 24 GHz)

Right Answer:
Millimeter waves in 5G networks enable higher data rates and increased capacity by utilizing higher frequency bands (typically 24 GHz to 100 GHz), allowing for faster transmission of data and supporting more devices simultaneously.

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Small cells in 5G are low-power wireless access points that cover small areas, enhancing network capacity and coverage. They are important because they help improve data speeds, reduce latency, and support a higher number of connected devices, especially in dense urban environments.

Right Answer:
5G enhances IoT connectivity by providing higher data speeds, lower latency, and greater capacity, allowing more devices to connect simultaneously and communicate more efficiently.