Low latency interview questions

Low Latency Interview Questions and Answers

What is low latency? ...
How does the size of a message impact its latency? ...
Can you explain what network latency means in the context of data transmission? ...
Why do we need to measure and track latency for trading systems? ...
What are some strategies that can be used to reduce latency?

What does low latency indicate?

Latency describes the amount of delay on a network or Internet connection. Low latency implies that there are no or almost no delays. High latency implies that there are many delays. One of the main aims of improving performance is to reduce latency.

Why is low latency important?

Low latency is imperative, because customers expect to interact with technology in real time with no delays. Issues with high latency and time delays can cause users to quit engaging on a platform and move to another application permanently.

What are the 4 components of latency?

As depicted in Figure 1, end-to-end latency is commonly broken down into four compo- nents of 1) processing delay, due to processing speed, 2) queueing delays in nodes (hosts and network routers and switches), 3) trans- mission delay due to the bit-rate of transmission, and 4) propaga- tion delays due to physical ...

Which language is low latency?

Generally, applications that need low latency are more likely to choose C++ because its execution and compilation are a lot faster compared to the other similar programming languages.

Which method has the lowest level of latency?

Fast-forward switching: Fast-forward switching offers the lowest level of latency.

Is low latency quality good?

In these cases, low latency assures an optimal viewing experience with great interactivity and engagement. The key to low latency video viewing, within seconds, is ultra-low latency video production, within milliseconds.

Is low latency better than normal?

The lower the latency, the less read-ahead buffer the video player will have. The amount of read-ahead buffer is important because it's the main source of stream latency. With a lower latency, viewers are more likely to feel the issues between the encoder and the player.

What are the 3 types of latency?

A computer system can experience many different latencies, such as disk latency, fiber-optic latency, and operational latency. The following are important types of latency.

Does lower latency mean faster?

Bandwidth and latency have an impact on everything you do online. High bandwidth and low latency translate to the best speeds and the fastest response times—that's what you want for your internet connection. Low bandwidth and high latency mean slow downloads, choppy streams, and delayed responses.

What causes poor latency?

What Causes Latency? In most situations, latency is caused by your internet network hardware, your remote server's location and connection, and the internet routers that are located between your server and your online gaming device, smartphone, tablet or other internet device.

What is high latency vs low latency?

A low latency network connection is one that generally experiences small delay times, while a high latency connection generally suffers from long delays. Latency is also referred to as a ping rate and typically measured in milliseconds (ms).

What factors affect latency?

Latency is affected by several factors: distance, propagation delay, internet connection type, website content, Wi-Fi, and your router.

What are the two types of latency?

There are two types of latency: A one-way transmission or round trip, depending on the use case. One-way latency is the transmission of data packets from a source to a destination. Round trip latency is when the data packet returns to the source after acknowledgement from the destination.

What is a good latency?

Any latency below 100 milliseconds (ms) is considered good, and below 50 ms is very good. Typical DSL or cable Internet connections have latencies of less than 100 ms, while satellite connections usually have latencies of 500 ms or higher.

How do you achieve low latency in Microservices scale up?

Running microservices at the edge – the periphery of the network – significantly decreases microservice latency. Edge computing makes microservice architectures more efficient by removing data processing from a centralized core and placing it as close as possible to users.

How does Kafka achieve low latency?

Kafka can achieve around millisecond latency, by using synchronous messaging. With synchronous messaging, the producer does not collect messages into a patch before sending.

What is low latency in microservices?

These low latency microservice reacts to the events, processes the input data, and generates output data. In many cases, the function is stateless: all required information is derived from the input events. However, in some cases efficiency is gained by maintaining some state between transactions.

What causes latency in microservices?

Different parts of the system can affect the latency of microservices,and they are hardware, application, network transit, etc.

Does low latency help streaming?

A low-latency streaming solution allows your viewers to experience the content in real time. Latency is the delay between when an image is captured on your camera and when your viewer experiences it on their screen. With live content, you want the lowest possible latency.

Does low latency affect streaming?

With a lower latency, viewers are more likely to feel the issues between the encoder and the player. Network congestion and other factors may also cause live streaming issues, which can delay your stream. Delays can happen even when you have a great network that can sustain your average streaming bitrate.

What is throughput vs latency?

Latency indicates how long it takes for packets to reach their destination. Throughput is the term given to the number of packets that are processed within a specific period of time. Throughput and latency have a direct relationship in the way they work within a network.

What are the two types of latency?

What is latency in REST API?

API latency refers to the response time between when a query is entered into your infrastructure and when a response is delivered to the user. Overall, the shorter the response time, the better the user experience.

What is low latency in cloud?

Network latency is the delay in network communication. It shows the time that data takes to transfer across the network. Networks with a longer delay or lag have high latency, while those with fast response times have low latency.