comp tia a+ test
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46 Terms
private ip address
10.x.x.x
172.16-31.x.x
192.168.x.x
local host ip address
127.0.0.1
apipa ip address
169.254.x.x
happens when ur offline
port 20/21
FTP file transfer protocol
port 22
SSH secure shell
port 23
Telnet
port 25
SMTP simple mail transfer protocol
port 53
DNS domain name system
port 67/68
DHCP Dynamic Host configuration protocol
port 80
HTTP
port 110
POP3
port 137/138
NetBIOS
port 132
internet mail access protocol (IMAP)
161/162
Simple Network Management Protocol (SNMP)
port 389
LDAP lightweight directory access protocol
port 445
server message block
port 443
HTTPS (encrypted)
port 3389
remote desktop protocol (RDP)
OLED
thinniest and lightest
subject to burn in
organic light
BSOD
Blue screen of death
DDOS
distributed denial of service
POST
power on self test / built-in diagnostic program that checks the hardware to ensure the components required to boot the PC are present and functioning correctly
rg-6
cable tv, satellite TV, broad band internet
rj45
copper twisted wires
rj-59
CCTV systems, analog videos signals
rj-11
phone lines/ land lines
zero config address
169.254.0.0 - .255.255
happens when u get discounted from the internet
2.4 GHz
902.11b, g, n, ax
5 GHz
802.11a, n, ac, ax
dual band frequency
802.11ax and n
single mode fiber
smaller core, more money, longer distances
multimode fiber
thicker core, less money, less distance
class a
1-127 first octet
class b
128-191 first octet
class c
192-223 first octet
class d
224-239 first octet
class e
240-255
