Firewall

Question 1

How is a MAC address presented?

Answer 1

12 digit hexadecimal number (6-byte binary number), mostly represented by two digits separated by a colon

Question 2

What are the types of Firewall?

Answer 2

Types of Firewalls - Packet Filtering, Proxy Firewall, SMLI, UTM, NGFW, NAT, and Virtual

Question 3

What is UTM

Answer 3

Unified Threat Management

Question 4

What is NGFW

Answer 4

Next Generation Firewall

Question 5

What is NAT

Answer 5

Network Address Translation

Question 6

What does Packet Filtering do?

Answer 6

Management program that can block network traffic IP protocol, IP Address, and a port number. Weak: it operates at the port level, all web traffic is allowed or no web traffic is allowed.

Question 7

What Layer is a Packet Filtering Firewall

Answer 7

Network AND Transport

Question 8

What does a Proxy Firewall do?

Answer 8

Filters messages at the Application Layer. Acts as a middleman/gateway between interior and exterior network gateways. Provides deep packet analysis of incoming traffic.

Question 9

What does SMLI mean?

Answer 9

Stateful Multi-Layer Inspection

Question 10

What does OSI stand for?

Answer 10

Open Systems Interconnection

Question 11

What does ARP do?

Answer 11

Connects the MAC address to an IP Address and vice versa.

Question 12

What does ARP stand for?

Answer 12

Address Resolution Protocol

Question 13

What Layer is ARP?

Answer 13

Data Link

Question 14

What does MAC Address stand for?

Answer 14

Media Access Control

Question 15

What does a MAC address do?

Answer 15

Assigns private IP Addresses as devices are attached and detached from the network.

Question 16

What is the difference between Stateless and Stateful?

Answer 16

Stateful has memory, Stateless does not. Stateful can detect and track per rules it is given (such as putting a limit on how long a user on the network can access http80).

Question 17

What does SMLI do?

Answer 17

SMLI has memory. It can remember states and have rules such as “Weldon has used 6 gigabytes of http80 https443 data, he cannot use http or https until midnight.”