3.1 Secure Protocols

Question 1

SRTP

Answer 1

Secure Real-time Transport Protocol

Adds encryption to VOIP.
Uses AES, HMAC-SHA1

Question 2

NTP/Time synchronization

Answer 2

Network Time Protocol
Standard for time synchronization across servers and clients

Question 3

S/MIME

Answer 3

Secure/Multipurpose Internet Mail Extensions

A standard encryption for emails.

Question 4

IPsec

Answer 4

Internet Protocol Security
encrypts data through AH (authentication Header) and EPS (Encapsulation Security Payload)

Question 5

FTPS Transfer

Answer 5

File Transfer Protocol, Secure

TCP Port 989

Protocol that provides encryption to FTP by using TLS.

Question 6

SFTP

Answer 6

SSH File Transfer Protocol

TCP port 22

Uses SSH to transfer files. Take advantage of its encryption.

Question 7

LDAPS

Answer 7

Lightweight Directory Access Protocol over SSL

TCP Port 636
TCP Port 3269 (Global communication)

Transmits directory information over SSL/TLS.

Question 8

SSH

Answer 8

Secure Shell

SSH uses TCP port 22

SSH is a terminal connection program used for remote connections to a server.

Question 9

DNSSEC

Answer 9

Domain Name System Security Extensions

TCP/UDP Port 53

Protocol that allows authentication of DNS data. Validates origin through cryptography.

Question 10

SNMPv3

Answer 10

Simple Network Management Protocol, Version 3

Standard for managing IP devices on a network.

Question 11

HTTPS

Answer 11

Hypertext Transfer Protocol Secure

TCP Port 443

Used for secure web communications

Question 12

Tunnel/transport

Answer 12

Transport mode only encrypts the data but you can see where its going

Tunnel Mode- Encrypts the entire message.

Question 13

POP3

Answer 13

Post Office Protocol

TCP Port 143 (plain text)
TCP Port 995 (secure)

Used for mail protocols

Question 14

IMAP4

Answer 14

internet Message Access Protocol

TCP Port