Future Focus Infotech Network Engineer L1 Interview Questions and Answers

OSPF is a link-state routing protocol used to exchange routing information within a single autonomous system. EIGRP is a Cisco proprietary routing protocol.

• OSPF stands for Open Shortest Path First

• It is a type of Interior Gateway Protocol (IGP)

• It uses Dijkstra's algorithm to calculate the shortest path

• EIGRP stands for Enhanced Interior Gateway Routing Protocol

• It is a Cisco proprietary protocol

• It uses a hybrid routing pr...read more

A network is a group of interconnected devices that communicate with each other to share resources and information.

• A network can be wired or wireless.

• Devices on a network can include computers, printers, routers, and servers.

• Networks can be local (LAN) or wide area (WAN).

• The internet is a global network of networks.

• Networks use protocols such as TCP/IP to ensure reliable communication.

• Security measures such as firewall...read more

Network protocols and port numbers are essential for communication between devices on a network.

• TCP/IP is the most commonly used protocol suite

• HTTP uses port 80, HTTPS uses port 443

• SMTP uses port 25, POP3 uses port 110, IMAP uses port 143

• FTP uses port 21, SFTP uses port 22

• DNS uses port 53

• SSH uses port 22

• Telnet uses port 23