Nomura Holdings Operations Engineer Interview Questions, Process, and Tips

Spanning Tree Protocol is a network protocol that ensures a loop-free topology for Ethernet networks.

• Prevents loops in Ethernet networks by blocking redundant paths

• Designated switches are elected to forward traffic on each segment

• Uses Bridge Protocol Data Units (BPDUs) to communicate and determine the topology

• Common implementations include IEEE 802.1D (STP), 802.1w (RSTP), and 802.1s (MSTP)

Yes, I have experience using BGP in managing network routing.

• I have configured BGP peering between routers to exchange routing information.

• I have troubleshooted BGP routing issues to optimize network performance.

• I have implemented BGP route filtering and policy-based routing.

• I have worked with BGP communities for traffic engineering purposes.

Packet switching involves breaking data into packets for transmission, while store and forward switching involves receiving the entire message before forwarding.

• Packet switching breaks data into small packets for transmission, allowing for more efficient use of network resources.

• Store and forward switching receives the entire message before forwarding it to the next destination, which can lead to delays.

• Packet switchin...read more

Output errors are errors that occur when data is being sent out of a system or device.

• Output errors can occur when there is a problem with the transmission of data from a device or system.

• These errors can result in corrupted or incomplete data being sent to the intended recipient.

• Examples of output errors include dropped packets in network communication or garbled text in printed documents.

To create an IPSec Tunnel with CSR, you need to configure the necessary settings on both devices.

• Configure the IPSec settings on the CSR device, including encryption algorithms, authentication methods, and pre-shared keys

• Ensure that the CSR device has a public IP address and is reachable from the remote device

• Configure the remote device with matching IPSec settings and establish the tunnel with the CSR device