IMPACT Infotech Network Administrator Interview Questions and Answers

VLAN stands for Virtual Local Area Network, a method of segmenting a physical network into multiple virtual networks.

• VLANs allow for better network security by isolating traffic between different groups of devices.

• They can improve network performance by reducing broadcast traffic.

• VLANs can be used to logically group devices based on department, function, or location.

• Each VLAN operates as if it is on its own separate ne...read more

P2P is a direct connection between two parties, while MPLS is a network technology that directs data from one network node to the next based on short path labels.

• P2P stands for Peer-to-Peer and is a decentralized communication model where each party has equal capabilities and responsibilities.

• MPLS stands for Multiprotocol Label Switching and is a routing technique used in telecommunications networks to speed up and sha...read more

MGCP, SIP, and SCCP are protocols used in telecommunications for controlling communication sessions.

• MGCP (Media Gateway Control Protocol) is used for controlling media gateways in VoIP networks.

• SIP (Session Initiation Protocol) is used for initiating, maintaining, and terminating real-time sessions like voice and video calls over IP networks.

• SCCP (Skinny Client Control Protocol) is a Cisco proprietary protocol used for...read more

Logs can be collected using various methods such as syslog, SNMP, agent-based monitoring, and log management tools.

• Use syslog to collect system logs from network devices

• Utilize SNMP to gather performance data and alerts from network devices

• Deploy agent-based monitoring tools on servers to collect detailed logs

• Implement log management tools like Splunk or ELK stack for centralized log collection and analysis

A box segment can be made by cutting a box into two parts along one of its faces.

• Choose a face of the box to cut along

• Use a saw or knife to cut through the box along the chosen face

• Sand the edges of the cut to smooth them out if necessary

Core Java is a programming language that supports OOPs concepts such as inheritance, encapsulation, abstraction, and polymorphism.

• Core Java is an object-oriented programming language.

• It supports encapsulation, which means hiding the implementation details of an object from the outside world.

• Inheritance allows a class to inherit properties and methods from another class.

• Abstraction is the process of hiding complex imple...read more

Docker is a containerization platform that allows developers to package and run applications in isolated environments. Kubernetes is an open-source container orchestration system that automates deployment, scaling, and management of containerized applications.

• Docker allows developers to create and run applications in containers, which are lightweight and portable environments that can run on any machine with Docker ins...read more

To see log of a complete request in docker, use docker logs command.

• Use 'docker logs ' command to see logs of a specific container

• Use '-f' flag to follow the logs in real-time

• Use '--tail' flag to specify the number of lines to show from the end of the logs

• Use '--since' and '--until' flags to specify a time range for the logs

• Use '--timestamps' flag to show timestamps in the logs