DMart Interview Questions and Answers

Port forwarding is a technique used to redirect network traffic from one port to another.

• Port forwarding allows incoming traffic on a specific port to be redirected to a different port on a different IP address.

• It is commonly used to access services on a private network from the internet.

• For example, port 80 on a public IP address can be forwarded to port 8080 on a private server for web traffic.

• Port forwarding is often configured on routers or firewalls to enable remote acce...read more

NAT stands for Network Address Translation, a process used to modify network address information in packet headers while in transit.

• NAT allows multiple devices on a local network to share a single public IP address

• Types of NAT include Static NAT, Dynamic NAT, and PAT (Port Address Translation)

• NAT helps conserve public IP addresses and adds a layer of security by hiding internal IP addresses

• Example: A home router using NAT to allow multiple devices to access the internet using...read more

Bandwidth refers to the maximum amount of data that can be transmitted over a network connection in a given amount of time.

• Bandwidth is typically measured in bits per second (bps), kilobits per second (kbps), or megabits per second (mbps).

• It determines how fast data can be uploaded or downloaded on a network.

• Higher bandwidth allows for faster data transfer speeds, while lower bandwidth results in slower speeds.

• Bandwidth can be affected by factors such as network congestion, d...read more

FTTH stands for Fiber to the Home, a technology that delivers high-speed internet through fiber optic cables directly to residential homes.

• FTTH technology uses fiber optic cables to provide high-speed internet access directly to homes.

• It offers faster and more reliable internet connections compared to traditional DSL or cable internet.

• FTTH allows for symmetrical upload and download speeds, making it ideal for activities like video streaming, online gaming, and video conferenc...read more

Protocols are rules or standards that define how data is transmitted over a network.

• Protocols define the format, timing, sequencing, and error checking of data transmission.

• Examples include TCP/IP, HTTP, FTP, and SMTP.

• Different protocols serve different purposes, such as communication, file transfer, or email.

NAT stands for Network Address Translation. It is a process used in routers to modify network address information in packet headers.

• NAT allows multiple devices on a local network to share a single public IP address.

• There are three types of NAT: Static NAT, Dynamic NAT, and PAT (Port Address Translation).

• NAT works by translating private IP addresses to public IP addresses and vice versa.

• For example, when a device on a local network accesses the internet, NAT changes the source...read more