ports

Question 1

total ports ipv4

Answer 1

65,535

Question 2

well known ports

Answer 2

0-1023

Question 3

registered ports

Answer 3

1,024-49,151

Question 4

dynamic and private ports

Answer 4

49152-65535 gaming and instant message and chat

Question 5

FTP

Answer 5

20, 21 transfer files insecurely

Question 6

SSH

Answer 6

22 secure take control via command shell, cryptographic network protocol

Question 7

SFTP

Answer 7

22 secure file share tunneling file transfer through SSH

Question 8

telnet

Answer 8

23 remote access via command prompt, everything sent in the clear

Question 9

SMTP

Answer 9

25 internet standard for email

Question 10

DNS

Answer 10

53 dynamic name server

Question 11

DHCP

Answer 11

67, 68 ip address default gateway subnet and DNS server

Question 12

HTTP

Answer 12

80 insecure web browsing

Question 13

POP3

Answer 13

110 retrieve email over tcpip only inbound email, uses store and foreward will download and server will keep or delete

Question 14

NetBIOS

Answer 14

137, 139 file and printer sharing in windows

Question 15

IMAP

Answer 15

143 Internet mail application protocol retrieving incoming emails, synchronized message states

Question 16

SNMP

Answer 16

161, 162 simple network management protocol

Question 17

LDAP

Answer 17

389 unencrypted 636 encrypted lightweight directory access protocol directory services

Question 18

HTTPS

Answer 18

443 secure, SSL secure socket layer or TLS transport layer security

Question 19

SMB

Answer 19

445 server message block protocol handles the passing out of files windows file and printer services

Question 20

RDP

Answer 20

3389

Question 21

IIS internet information services

Answer 21

microsoft HTTP HTTPS HTP/2 for web server

Question 22

Apache

Answer 22

linux or mac unix open source web server very popular

Question 23

NGINX

Answer 23

reverse proxy load balancer mail proxy and HTTP cache

Question 24

FQDN

Answer 24

fully qualified domain name

Question 25

MTA

Answer 25

Message transfer Agent

Question 26

RADIUS

Answer 26

remote authentication dial-in user service operates on application layer. uses UDP for making connections. cross platform. does not support all network protocols

Question 27

TACACS+

Answer 27

terminal controller access-control system plus. authenticator in 802.1x network
TCP
supports all network protocol
only for CISCO

Question 28

Kerberos

Answer 28

authentication protocol used by windows to provide for two way mutual authentication using a system of tickets

Question 29

KDC

Answer 29

Key distribution center, authentication and ticket granting for kerberos

Question 30

New syslog/syslogNG

Answer 30

uses TCP TLS MD5 and SHA1