Domain 1: Network Security

Question 1

port 53

Answer 1

DNS - Domain Name Service

Question 2

port 67/68

Answer 2

DHCP - Dynamic Host Configuration Protocol

Question 3

port 20/21

Answer 3

FTP - File Transfer Protocol

Question 4

port 989/990

Answer 4

FTPS - FTP over SSL

Question 5

port 80

Answer 5

HTTP - Hypertext Transfer Protocol

Question 6

port 443

Answer 6

HTTPS - HTTP over SSL

Question 7

port 389

Answer 7

LDAP - Lightweight Directory Access Protocol

Question 8

port 636

Answer 8

LDAPS - LDAP over SSL

Question 9

port 445 new / 139 Old

Answer 9

NetBIOS/CIFS

Question 10

port 110

Answer 10

POP - Post Office Protocol

Question 11

port 3389

Answer 11

RDP - Remote Desktop Protocol

Question 12

port 25

Answer 12

SMTP - Simple Mail Transfer Protocol

Question 13

port 161

Answer 13

SNMP - Simple Network Management Protocol

Question 14

port 162

Answer 14

SNMP Trap

Question 15

port 1433

Answer 15

MS SQL Server

Question 16

port 22

Answer 16

SSH, SFTP, SCP

Question 17

port 23

Answer 17

Telnet

Question 18

port 143

Answer 18

IMAP

Question 19

port 1812

Answer 19

RADIUS

Question 20

port 500

Answer 20

IKE

Question 21

port 514

Answer 21

syslog

Question 22

Protocol 50

Answer 22

encapsulating security payload

Question 23

Protocol 51

Answer 23

authentication header

Question 24

WAF

Answer 24

web application firewall (blocks XSS, SQL injections)

Question 25

Syslog

Answer 25

3rd party logging. UDP port 514

Question 26

Zone Transfer

Answer 26

secondary names server request and pulls info from Primary DNS

Question 27

ALG

Answer 27

application layer gateway