Glossary Terms from Module 2-03

Question 1

Define Address Resolution Protocol (ARP)

Answer 1

A network protocol used to determine the MAC address of the next router or device on the path

Question 2

Define Cloud-based firewalls

Answer 2

Software firewalls that are hosted by the cloud service provider

Question 3

Define Controlled zone

Answer 3

A subnet that protects the internal network from the uncontrolled zone

Question 4

Define Domain Name System (DNS)

Answer 4

A networking protocol that translates internet domain names into IP addresses

Question 4

Define Forward proxy server

Answer 4

A server that regulates and restricts a person’s access to the internet

Question 5

Define Encapsulation

Answer 5

A process performed by a VPN service that protects your data by wrapping sensitive data in other data packets

Question 6

Define Firewall

Answer 6

A network security device that monitors traffic to or from your network

Question 7

Define Hypertext Transfer Protocol (HTTP)

Answer 7

An application layer protocol that provides a method of communication between clients and website servers

Question 8

Define IEEE 802.11 (Wi-Fi)

Answer 8

A set of standards that define communication for wireless LANs

Question 8

Define Hypertext Transfer Protocol Secure (HTTPS)

Answer 8

A network protocol that provides a secure method of communication between clients and servers

Question 9

Define Network protocols

Answer 9

A set of rules used by two or more devices on a network to describe the order of delivery of data and the structure of data

Question 10

Define Network segmentation

Answer 10

A security technique that divides the network into segments

Question 11

Define Port filtering

Answer 11

A firewall function that blocks or allows certain port numbers to limit unwanted communication

Question 12

Define Proxy server

Answer 12

A server that fulfills the requests of its clients by forwarding them to other servers

Question 13

Define Reverse proxy server

Answer 13

A server that regulates and restricts the internet’s access to an internal server

Question 14

Define Secure File Transfer Protocol (SFTP)

Answer 14

A secure protocol used to transfer files from one device to another over a network

Question 15

Define Secure shell (SSH)

Answer 15

A security protocol used to create a shell with a remote system

Question 16

Define Security zone

Answer 16

A segment of a company’s network that protects the internal network from the internet

Question 17

Define Simple Network Management Protocol (SNMP)

Answer 17

A network protocol used for monitoring and managing devices on a network

Question 18

Define Stateful

Answer 18

A class of firewall that keeps track of information passing through it and proactively filters out threats

Question 19

Define Stateless

Answer 19

A class of firewall that operates based on predefined rules and does not keep track of information from data packets

Question 20

Define Subnetting

Answer 20

The subdivision of a network into logical groups called subnets

Question 21

Define Transmission Control Protocol (TCP)

Answer 21

An internet communication protocol that allows two devices to form a connection and stream data

Question 22

Define Uncontrolled zone

Answer 22

The portion of the network outside the organization

Question 23

Define Virtual private network (VPN)

Answer 23

A network security service that changes your public IP address and masks your virtual location so that you can keep your data private when you are using a public network like the internet

Question 24

Define Wi-Fi Protected Access (WPA)

Answer 24

A wireless security protocol for devices to connect to the internet