CompTIA Network+ Protocols Flashcards

Network Time Protocol; port 123

Uniform Datagram Protocol; Layer 4

Secure Shell; Port 22

Unencrypted; Port 23

Domain Name Server/Service; Port 53

Internet Protocol; Layer 3

Internet Protocol version 4; 32 Bits; Dotted Decimal format

File Transfer Protocol; Ports 20 and 21

Enhanced Interior Gateway Routing Protocol; Cisco distance-vector routing protocol.

Address Resolution Protocol; Discovers network devices on a LAN; Records MAC Addresses of LAN.

Dynamic Host Configuration Protocol; Dynamically assigns IP, DNS, and subnet mask to network devices. Ports 67, 68.

Hypertext Transfer Protocol + SSL/TLS; Port 443

Transmission Control Protocol

Open Shorteset Path First; Link-state routing protocol.

Routing Information Protocol. Basic, distance vector routing protocol.

Post Office Protocol; Port 110

Border Gateway Protocol; Exterior Gateway routing protocol used for exchanging routing information between network systems. Typically found at the ISP level.

Port Address Translation (Aka NAT Overload). Type of NAT that uses 1 to many IP translations by utilizing layer 4 port numbers.

Hypertext Transfer Protocol; Port 80

Simple Mail Transfer Protocol; Port 25

Simple Network Management Protocol; Port 161

Automatic Private IP Addressing. Assigned to Windows OS's if DHCP fails. 169.254.0.0-169.254.255.255

Internet Control Message Protocol

Network Address Translation; Translates between IP addresses of different networks. Typically between private and public IP networks.