Find Interview Questions for Borqs

Right Answer:
An SDK (Software Development Kit) provides developers with the tools, libraries, documentation, and APIs needed to create mobile applications for a specific platform, simplifying the development process and enabling access to platform-specific features.

Right Answer:
To ensure compliance with OEM-specific AUTOSAR guidelines, I would:

1. Thoroughly review the OEM's AUTOSAR specifications and guidelines.
2. Implement a structured development process that aligns with these guidelines.
3. Use AUTOSAR-compliant tools for design, development, and testing.
4. Conduct regular audits and reviews of the code and architecture against the guidelines.
5. Collaborate closely with the OEM's technical team for feedback and validation.
6. Maintain documentation to track compliance and any deviations with justifications.

Right Answer:
In Ab Initio, the different types of joins are:

1. **Inner Join**: Combines records from two datasets where there is a match based on the join key. Only matching records are included in the output.

2. **Left Outer Join**: Includes all records from the left dataset and the matching records from the right dataset. If there is no match, NULLs are filled for the right dataset.

3. **Right Outer Join**: Includes all records from the right dataset and the matching records from the left dataset. If there is no match, NULLs are filled for the left dataset.

4. **Full Outer Join**: Combines records from both datasets, including all records from both sides. If there is no match, NULLs are filled for the non-matching side.

5. **Cross Join**: Produces a Cartesian product of the two datasets, pairing every record from the left dataset with every record from the right dataset.

6. **Self Join**

Right Answer:
The ARM Compiler handles floating-point operations by using hardware floating-point units (FPU) when available, which allows for efficient execution of floating-point calculations. If an FPU is not present, it emulates floating-point operations in software. The compiler also provides options to control floating-point precision and optimization levels.

Right Answer:
The RTE (Runtime Environment) acts as a middleware layer that facilitates communication between the application layer and the underlying OS (Operating System) and BSW (Basic Software) layers in AUTOSAR. It abstracts the details of the OS and BSW, allowing application components to interact with services like communication, memory management, and hardware access without needing to know the specifics of the underlying layers. The RTE generates code that connects application software components to the BSW modules and manages their lifecycle, ensuring that they operate correctly within the constraints of the OS.

Right Answer:
The `m_reformat` component is a multi-file reformatting component that can handle multiple input files and allows for complex transformations, while the `reformat` component is a simpler, single-file reformatting component used for basic data transformations.

Right Answer:
Analog signals are continuous waves that vary in amplitude or frequency, representing information in a smooth and gradual manner. Digital signals, on the other hand, are discrete and represent information in binary form (0s and 1s), making them more resistant to noise and easier to process.

Right Answer:
The different types of transmission media are:

1. **Guided Media**:
- Twisted Pair Cable
- Coaxial Cable
- Fiber Optic Cable

2. **Unguided Media**:
- Radio Waves
- Microwaves
- Infrared Waves

Right Answer:
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:
Number portability in VoIP systems is handled through a process called Local Number Portability (LNP), which allows users to retain their existing phone numbers when switching service providers. This involves coordination between the old and new providers, who update their databases to reflect the change, ensuring calls are routed correctly to the ported number.

Right Answer:
SIP (Session Initiation Protocol) is a signaling protocol used for initiating, maintaining, and terminating real-time sessions in VoIP, while H.323 is a set of protocols for voice, video, and data conferencing over IP networks. SIP is generally simpler and more flexible, whereas H.323 is more complex and was designed for multimedia communication.

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:
Codecs affect voice quality in VoIP by compressing and decompressing audio signals. Different codecs use varying levels of compression, which can impact clarity, latency, and bandwidth usage. Higher-quality codecs provide better sound fidelity but may require more bandwidth, while lower-quality codecs may save bandwidth but can result in poorer audio quality.