NAT, DHCP, DNS, Mascara red, subnet mask,
What is NAT and how does it work?
Network Address Translation (NAT) is a process that enables one, unique IP address to represent an
entire group of computers. In network address translation, a network device, often a router or NAT
firewall, assigns a computer or computers inside a private network a public address.
What is DHCP and why is it used?
Dynamic Host Configuration Protocol (DHCP) is a client/server protocol that automatically provides an
Internet Protocol (IP) host with its IP address and other related configuration information such as the
subnet mask and default gateway.
What is DNS and why is it used?
The Domain Name System (DNS) turns domain names into IP addresses, which browsers use to load
internet pages. Every device connected to the internet has its own IP address, which is used by other
devices to locate the device.
What is subnet mask explain?
A subnet mask is a 32-bit number created by setting host bits to all 0s and setting network bits to all 1s.
In this way, the subnet mask separates the IP address into the network and host addresses. The “255”
address is always assigned to a broadcast address, and the “0” address is always assigned to a network
address.
What is the network mask and what is its purpose?
A subnet mask is used to divide an IP address into two parts. One part identifies the host (computer),
the other part identifies the network to which it belongs. To better understand how IP addresses and
subnet masks work, look at an IP address and see how it's organized.
What is three-way handshake process?
The TCP handshake
TCP uses a three-way handshake to establish a reliable connection. The connection is full duplex, and
both sides synchronize (SYN) and acknowledge (ACK) each other. The exchange of these four flags is
performed in three steps—SYN, SYN-ACK, and ACK