VOIS Assistant Manager Interview Questions and Answers

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

• BGP is used to make routing decisions based on network policies, rules, and attributes.

• It is a path vector protocol that allows routers to share information about the best path for reaching a certain network.

• BGP operates on TCP port 179.

• BGP is commonly used ...read more

The types of messages in BGP include Open, Update, Keepalive, and Notification messages.

• Open message is used to establish a BGP connection between peers

• Update message is used to advertise routing information

• Keepalive message is sent periodically to maintain the BGP connection

• Notification message is used to report errors or terminate the BGP session

BGP synchronization rule ensures that a BGP router does not advertise a route to an external peer unless it has a valid route to that destination in its own routing table.

• BGP synchronization rule is a feature in BGP routing protocol.

• It ensures that a BGP router only advertises routes to external peers if it has a valid route to that destination in its own routing table.

• This prevents routing loops and ensures consistenc...read more

OSPF (Open Shortest Path First) is a routing protocol used to find the best path for data packets in a network.

• OSPF is a link-state routing protocol.

• It uses LSAs (Link State Advertisements) to exchange routing information.

• There are five types of LSAs in OSPF: Router LSA, Network LSA, Summary LSA, ASBR Summary LSA, and External LSA.

• Each LSA type serves a specific purpose in the OSPF network.

• For example, Router LSAs are ...read more