CompTIA Security+ 2nd Edition

Question 1

Port 23

Answer 1

Telnet (TCP)
Provide Insecure Remote Connection for the text based environment

Question 2

Port 25

Answer 2

TCP
SMTP connection
Secure mail connection

Question 3

Port 53

Answer 3

TCP and UDP
DNS

Question 4

Port 69

Answer 4

UDP
TFTP - Trivial File Transfer Protocol
Used as a lightweight file transfer method for sending configuration files or network booting of an OS

Question 5

Port 88

Answer 5

UDP
Kerberos
Network Authentication Protocol

Question 6

Port110

Answer 6

TCP
POP3
Responsible for retrieving email from a server

Question 7

Port 119

Answer 7

TCP
Network News Transfer Protocol NNTP
Using accessing news group

Question 8

Port 135

Answer 8

TCP and UDP
RPC - Remote Procedure Call
Facilitate communication between different system process

Question 9

Port 137,138 and 139

Answer 9

TCP and UDP
NetBIOS
Networking Protocol Suit

Question 10

143

Answer 10

TCP
IMAP
Access email servers

Question 11

161

Answer 11

UDP
Simple Network Management Protocol SNMP
Manages Network Devices

Question 12

162

Answer 12

UDP
SNMP trap
Responsible for sending SNMP trap message

Question 13

389

Answer 13

LDAP
TCP
Facilitate Directory Service

Question 14

445

Answer 14

TCP
SMB - Server Message Block
Using file and printer sharing over a Network

Question 15

465 and 587

Answer 15

SMTP Secure
TCP
Secure Mail Transfer Protocol

Question 16

514

Answer 16

UDP
Syslog
Using for sending log messages

Question 17

636

Answer 17

TCP
LDAP Secure

Question 18

993

Answer 18

IMAPS
TCP

Question 19

995

Answer 19

TCP
POP3S

Question 20

1433

Answer 20

TCP
MYSQL

Question 21

1645 and 1646

Answer 21

TCP
RADIUS TCP
Used for remote Authentication, Authorization and accounting

Question 22

1812 and 1813

Answer 22

UDP
Radius UDP
Used radius over UDP
IETF

Question 23

3389

Answer 23

TCP
RDP