Tx NOC Engineer Interview Questions and Answers

EPLA (Ethernet Private Line Access) is a service that provides dedicated point-to-point Ethernet connections between two locations.

• EPLA is configured to provide secure and reliable communication between two sites

• It offers a dedicated bandwidth for the connection

• EPLA can be used for connecting data centers, offices, or other locations

• Example: Configuring EPLA between a company's headquarters and a remote branch office

Modulation is configured to optimize signal transmission and reception in communication systems.

• Modulation helps in encoding information onto a carrier signal for transmission.

• Different modulation techniques are used to achieve different objectives such as increasing data rate, improving signal quality, or reducing interference.

• Examples of modulation techniques include Amplitude Modulation (AM), Frequency Modulation (FM), and Phase Shift Keying (PSK).

QOS configuration is essential for prioritizing network traffic and ensuring quality performance.

• Ensures critical applications have sufficient bandwidth

• Prevents network congestion and latency

• Improves overall network performance

• Allows for prioritization of specific types of traffic, such as VoIP or video streaming

MTU size refers to the maximum transmission unit size, the largest data packet that can be transmitted over a network.

• MTU size is the maximum size of a data packet that can be sent over a network without fragmentation.

• It is typically measured in bytes.

• Common MTU sizes include 1500 bytes for Ethernet networks and 576 bytes for dial-up connections.