10+ Interview Questions and Answers

DHCP Dora process assigns IP addresses to devices. DNS resolves domain names to IP addresses.

• DHCP Dora process involves four steps: Discover, Offer, Request, and Acknowledge.

• DHCPv6 is the IPv6 version of DHCP.

• DNS works by translating domain names into IP addresses.

• DNS uses a hierarchical system of domain names and servers.

• DNS queries can be recursive or iterative.

• DNS caching helps to reduce network traffic and improve performance.

Program to check if a number is prime or not.

• A prime number is a number greater than 1 that has no positive divisors other than 1 and itself.

• To check if a number is prime, iterate from 2 to the square root of the number and check if any of them divide the number evenly.

• If any divisor is found, the number is not prime. Otherwise, it is prime.

Two PR can communicate with each other through various means such as email, phone, video conferencing, or in-person meetings.

• Email is a common way for PR professionals to communicate with each other, especially when they are in different locations.

• Phone calls are also a popular way for PR professionals to communicate, as it allows for real-time conversation and quick decision-making.

• Video conferencing is becoming increasingly popular, especially for remote teams, as it allows...read more

A program to find the largest of 3 numbers.

• Compare the first number with the second number and store the larger one.

• Compare the stored number with the third number and update if larger.

• The final stored number is the largest of the three.

Java is a high-level, object-oriented programming language used for developing applications and software.

• Java is platform-independent and can run on any operating system.

• It is known for its security features and is widely used for developing web and mobile applications.

• Java has a vast library of pre-built classes and methods that can be used to simplify programming tasks.

• It supports multithreading, allowing multiple threads to run simultaneously within a single program.

• Java i...read more

HSRP, OSPF, and BGP are routing protocols used in computer networks.

• HSRP (Hot Standby Router Protocol) is a Cisco proprietary protocol used to provide redundancy for IP networks.

• OSPF (Open Shortest Path First) is a link-state routing protocol used to determine the shortest path for data packets in a network.

• BGP (Border Gateway Protocol) is an exterior gateway protocol used to exchange routing information between different autonomous systems on the internet.

Spanning Tree Protocol is a network protocol that prevents loops in a network topology.

• STP is used to prevent broadcast storms and network congestion.

• It works by selecting a root bridge and blocking redundant paths to prevent loops.

• STP can be configured with different priorities and timers to optimize network performance.

• Examples of STP variants include Rapid Spanning Tree Protocol (RSTP) and Multiple Spanning Tree Protocol (MSTP).

Routing and switching technologies are essential components of network infrastructure.

• Understanding of routing protocols such as OSPF, EIGRP, BGP

• Knowledge of VLANs, STP, VTP for switching

• Experience with Cisco routers and switches

• Troubleshooting network connectivity issues

• Implementing network security measures

Microservices patterns are architectural patterns used to design and develop microservices-based applications.

• Microservices patterns help in building scalable, resilient, and maintainable applications.

• Some popular microservices patterns include API Gateway, Circuit Breaker, Service Registry, and Event-Driven Architecture.

• API Gateway pattern acts as a single entry point for all the microservices and provides features like authentication, rate limiting, and caching.

• Circuit Brea...read more