iOPEX Technologies Senior Network Engineer Interview Questions, Process, and Tips

IPsec is a protocol suite used to secure internet protocol (IP) communications by authenticating and encrypting each IP packet of a communication session.

• IPsec provides security services at the IP layer by enabling secure communication over the Internet.

• It uses encryption algorithms to ensure data confidentiality and authentication protocols to verify the identity of communicating parties.

• IPsec operates in two modes: T...read more

TCP (Transmission Control Protocol) is a connection-oriented protocol that provides reliable, ordered, and error-checked delivery of data.

• TCP is one of the main protocols in the Internet protocol suite.

• It operates at the transport layer of the OSI model.

• TCP ensures that data packets are delivered in order and without errors.

• It also includes mechanisms for flow control and congestion control.

• Examples of applications tha...read more

DNS is a system that translates domain names to IP addresses, while DHCP is a protocol that assigns IP addresses to devices on a network.

• DNS stands for Domain Name System and is used to translate domain names (like www.example.com) to IP addresses (like 192.168.1.1).

• DHCP stands for Dynamic Host Configuration Protocol and is used to automatically assign IP addresses, subnet masks, and other network configuration paramet...read more

DNS (Domain Name System) is a system that translates domain names to IP addresses to locate resources on the internet.

• DNS works by translating human-readable domain names (like google.com) into IP addresses (like 172.217.3.206).

• Different types of DNS records include A records (for IPv4 addresses), AAAA records (for IPv6 addresses), CNAME records (for aliasing one domain to another), MX records (for mail servers), and T...read more