Milestone Technologies Senior Network Administrator Interview Questions and Answers

STP prevents switching loops by creating a loop-free logical topology and blocking redundant paths.

• STP creates a loop-free logical topology by placing certain ports in blocking state to prevent loops.

• RSTP (Rapid Spanning Tree Protocol) improves upon STP by reducing convergence time and introducing alternate port roles.

• MSTP (Multiple Spanning Tree Protocol) improves upon STP by allowing for multiple spanning tree instan...read more

Policy-based routing (PBR) allows for routing decisions based on defined policies rather than traditional routing protocols.

• PBR allows network administrators to define specific criteria for routing decisions, such as source IP address, application type, or packet size.

• PBR can be used to route traffic over specific paths based on policies set by the administrator, such as sending VoIP traffic over a low-latency link.

• PBR...read more

BGP Path Selection process determines the best path based on various attributes.

• BGP routers receive multiple paths to a destination network from different peers.

• BGP uses a set of criteria to select the best path, such as AS path length, local preference, origin code, etc.

• The path with the highest weight is chosen as the best path and used for routing.

• If the weight is the same, BGP compares the local preference, then th...read more

OSPF LSA types include Router LSA, Network LSA, Summary LSA, and ASBR Summary LSA, each serving a specific purpose in building the OSPF database.

• Router LSA: Generated by each router to describe its directly connected links.

• Network LSA: Generated by DR to describe the network and its attached routers.

• Summary LSA: Generated by ABR to advertise routes between areas.

• ASBR Summary LSA: Generated by ASBR to advertise external...read more

EIGRP's DUAL algorithm is a loop-free routing algorithm used for route computation and convergence in EIGRP networks.

• DUAL algorithm ensures loop-free paths by maintaining a topology table with feasible successors and successors for each destination.

• When a link or route fails, DUAL algorithm calculates a new loop-free path to the destination using feasible successors.

• DUAL algorithm minimizes convergence time by quickly ...read more

I ensure clear communication and alignment between clients and internal teams by establishing regular meetings, setting clear expectations, utilizing project management tools, and providing updates.

• Establish regular meetings with clients and internal teams to discuss project progress and address any issues

• Set clear expectations and goals for all parties involved to ensure everyone is on the same page

• Utilize project man...read more

When handling a high-priority incident in a production environment, I follow a structured approach to quickly resolve the issue.

• Immediately assess the severity of the incident and prioritize based on impact

• Notify relevant stakeholders and create a dedicated communication channel for updates

• Gather all necessary information such as logs, error messages, and recent changes

• Formulate a plan of action with clear steps to tro...read more