2.6 Implement Secure Protocols

Question 1

Protocols

Answer 1

An established set of rules that determine how data is transmitted between different devices in the same network.

Question 2

DNSSEC

Answer 2

(Domain Name System Security Extensions) A security protocol that provides authentication of DNS data and upholds DNS data integrity.

Question 3

SSH

Answer 3

(Secure Shell) A remote administration and file-copy program that supports VPNs by using port forwarding, and that runs on TCP port 22.

Question 4

S/MIME

Answer 4

(Secure/Multipurpose Internet Mail Extensions) An email encryption standard that adds digital signatures and public key cryptography to traditional MIME communications.

Question 5

SRTP

Answer 5

(Secure Real-Time Transport Protocol) A security protocol intended for VoIP (Voice over IP)

Question 6

LDAPS

Answer 6

(Lightweight Directory Access Protocol Secure) A method of implementing LDAP using SSL/TLS encryption.

Question 7

SFTP

Answer 7

(Secure File Transfer Protocol) A secure version of the File Transfer Protocol that uses a Secure Shell (SSH) tunnel as an encryption method to transfer, access, and manage files.

Question 8

SNMPv3

Answer 8

(Simple Network Management Protocol) A protocol for monitoring and managing network devices.

Question 9

SSL/TLS

Answer 9

(Secure Sockets Layer) security protocol that uses certificates for authentication and encryption to protect web communication.

(Transport Layer Security) A security protocol that uses certificates and public key cryptography for mutual authentication and data encryption over a TCP/IP connection.

Question 10

HTTPS

Answer 10

(HyperText Transfer Protocol) The protocol used to provide web content to browsers. HTTP uses port 80. HTTPS(ecure) provides for encrypted transfers, using SSL/TLS and port 443.

Question 11

Secure POP/IMAP

Answer 11

(Post Office Protocol) TCP port 110 protocol that enables a client to access email messages stored in a mailbox on a remote server. The server usually deletes messages once the client has downloaded them.

(Internet Message Access Protocol) TCP/IP application protocol providing a means for a client to access email messages stored in a mailbox on a remote server. IMAP4 utilizes TCP port number 143.

Question 12

Voice and Video

Answer 12

SIP (Session Initiation Protocol) is used to secure Voice and Video.

Question 13

Time synchronization

Answer 13

The Network Time Protocol (NTP) provides a transport to synchronize applications.
NTP works over UDP on port 123.

Question 14

Email and web

Answer 14

Use S/MIME and private/public key encryption.

Question 15

File Transfer

Answer 15

FTPS and SFTP

Question 16

Directory services

Answer 16

LDAP (Lightweight Directory Access Protocol is the protocol used to query and update an X.500 directory.

Question 17

Remote access

Answer 17

SSL/TLS VPN

Question 18

Domain name resolution

Answer 18

The process of translating IP addresses to domain names.

Question 19

Network address allocation

Answer 19

DCHP server assigns an IP address to client. Either automatic, dynamic, or static.