Network and communications engineering, also called connectivity and network engineering or network management, is the field of engineering that is based on the use of computers to store, retrieve, transmit and manipulate data or information and emphasizes the role of unified communications as well as the necessary software, middleware and storage that allow users to access, store, transmit and manipulate information. It covers any product that stores, retrieves, manipulates, transmits or receives information electronically in form digital (for example, personal computers, digital television, email, or robots).

Its main objective is to plan, design, implement and evaluate communication networks that support the needs of any organization and to use modern technologies of virtualized operating systems, cloud services and network programmability that complement current connectivity solutions.

OSI Model, Routing, Directory Service"), Telnet, RFC, TCP/IP, UDP, MPLS, Structured Cabling, Router, Switch, Firewall, ACL, VPN, VLAN, VoIP, Radio Frequency (RF), FO, FDDI, UTP, FTP, SSH, DNS, DHCP, Frame Relay, PPP, HDLC, ATM, SONET, RIP, OSPFv3, RIPng, IGRP, EIGRP, Fiber Optic, OM1, OM2, OM3, OS1, OS2, Ethernet, Frame Relay, 802.11, 802.3, 802.5, 802.1X, NTP, RADIUS, MD5, SHA, DH, AES, EAP, TKIP, HTTPS, STP, PVST, SNMP, SMTP, IMAP, IMAPs, POSIX, SSH, POP3, DHCP, Kerberos, SOA, DNS, FTP, , Sniffers, Protocol Analyzers, IOS, NIDS, NIPS, Apple Talk, IPX/SPX, Wireless Technologies, Wimax, Wifi, WEP, WPA, WPA2, NFS, SAN, NAS, Metro Ethernet, CHAP, PAP, PPPoE, PPPoA, CSMA/CD, CSMA/CA, token ring, TIA/EIA/568, LLC, MAC, ARP, MITM, PROXY, HSRP, VRRP, CARP, FOS, 3DES, SEAL, DES, CIP, ISDN, ISDN, xDSL, DOCSIS, IPsec, TTL, BERT, TACACS+, Dynamic Routing, Load Balancing, Metric, IS-IS, BGP, ARPANET, NAT, RARP, PXE, iPXE, Connectorization, Muto, NIC, Domain Controllers, ICMP, SCCP, MULTICAST, UNICAST, GEOCAST, ANYCAST, BROADCAST, DAEMON, NOR, NAND, SUBNET, IPv4, IPv6, EtherChanneL, Wol, pAgP, PAP, Appliance, VOIP, Central Office, MDF, Ephones, APIPA, Loopback, Link Engineering, Traffic engineering, DSLAM, IPDSLAM, PON, GPON, Baseband, Broadband, Dispersion, Bandwidth, QoS, Wavelength, WDM, Time Rise, Down Time, AIMD, TDM, CDM, FDM, WDM, Layered Link Certification, OTDR, Cryptography, Steganography.