Jal Jeevan Mission Technical Support Engineer Interview Questions and Answers for Experienced

CMDB stands for Configuration Management Database, a centralized database that stores information about the hardware and software assets in an organization.

• Centralized database for storing information about hardware and software assets

• Helps in tracking changes and maintaining a record of configuration items

• Used for IT service management and ensuring accurate asset inventory

• Examples: ServiceNow CMDB, BMC Atrium CMDB

CI stands for Continuous Integration, a software development practice where code changes are automatically built, tested, and integrated into a shared repository frequently.

• CI helps to identify and fix integration errors quickly.

• It allows for faster delivery of software updates.

• Popular CI tools include Jenkins, Travis CI, and CircleCI.

OSPF exchanges routes through the use of Link State Advertisements (LSAs) and the OSPF database.

• OSPF routers exchange LSAs to share information about their directly connected networks.

• LSAs are flooded throughout the OSPF network to build a complete topology database.

• Each router uses the received LSAs to calculate the shortest path to each network.

• OSPF routers then update their routing tables based on the shortest path ...read more

BGP attributes are used to influence routing decisions in Border Gateway Protocol networks.

• BGP attributes include AS_PATH, NEXT_HOP, LOCAL_PREF, MED, and others.

• AS_PATH is used to prevent routing loops by tracking the path a route has taken through autonomous systems.

• NEXT_HOP specifies the next router to reach a destination.

• LOCAL_PREF is used to influence outbound traffic from a BGP router.

• MED (Multi-Exit Discriminator...read more

Traffic flow in a network refers to the movement of data packets between devices within the network.

• Traffic flow is managed by network devices such as routers and switches.

• Data packets are sent from a source device to a destination device through various network paths.

• Network congestion can occur if there is a high volume of traffic on a network.

• Quality of Service (QoS) mechanisms can be used to prioritize certain type

To triage null pointer expectations in Java, check for null values before accessing objects or invoking methods.

• Always perform null checks before accessing object properties or invoking methods to avoid NullPointerException.

• Use conditional statements like if-else or ternary operators to handle null values appropriately.

• Consider using Optional class introduced in Java 8 to handle null values more effectively.

• Utilize log...read more