security+

Question 1

What is a DMZ comprised of

Answer 1

Web servers, external facing servers and such

Question 2

with regard to networking what is a “WAP”

Answer 2

Wireless access point

Question 3

In networking what does RADIUS stand for?

Answer 3

Remote Authentication Dial-In User Service

Question 4

In networking what is a “Honeynet”?

Answer 4

A monitored network that is left vulnerable to cyber attacks

Question 5

in networking what does “NAT” stand for?

Answer 5

Network Address Translation

Question 6

in networking what is a NAT protocol used for?

Answer 6

The NAT replaces the IP header private IP address as the frame is transmit between networks.

Typically performed when moving between private and public networks.

Question 7

What is an Ad Hoc Network?

Answer 7

Decentralized and dynamic networks. This does not require hardware and can be virtualized

Question 8

in networking what does VLAN stand for

Answer 8

Virtual Local Area Network

Question 9

What are the four different security segmentation models?

Answer 9

Physical
Logical (VLAN)
Virtualization
Air Gapped

Question 10

How does logical segmentation model work in a single physical network?

Answer 10

The set of hosts connected to the same physical network is split using VLAN into subsets which are logically isolated from eachother.

Question 11

How does logical segmentation work with multiple physical networks

Answer 11

The VLAN can be created with a set of hosts which is the union of a subset of hosts from each physical network.

Question 12

How does the physical network segmentation model operate

Answer 12

All hosts connected to the same switch are a member of the same physical network

Question 13

In networking, what is a collision domain?

Answer 13

a collision domain is the network segment in which hosts are communicating

Question 14

What is the virtualization model of segmentation?

Answer 14

segmentation by virtualization allows guests and network infrastructure to be virtualized in and controlled by a host hypervisor. There is no dependency on a physical network

Question 15

What are example of network virtualization technologies?

Answer 15

KVM
Xen
Virtualbox

Question 16

What is an air-gap network segmentation?

Answer 16

Create a physical network which is not physically connected to other networks. This prevents all network data from being infiltrated or exfiltrated

Question 17

With regards to Air gapped networks, what is Emanations

Answer 17

An attack method that utilizes either heat, or EMF from the computer to exfiltrate data.

Question 18

In networking what does a VPN stand for?

Answer 18

Virtual Private Network

Question 19

What is a VPN concentrator?

Answer 19

a service which has the ability to create a large number of VPN tunnels

Question 20

In networking what does SDN stand for?

Answer 20

Software Defined Networking

Question 21

What is a SDN?

Answer 21

A network that has its infrastructure created programmatically.

Question 22

With regards to SDN what is the Application Tier?

Answer 22

This is the abstraction layer of the SDN which manages the application orchestration. Uses the North/South network Interfaces to communicate with the Control Plane Tier

Question 23

With regards to SDN what is the Control Plane Tier

Answer 23

This tier is used to configure policy and monitor performance

Question 24

With regards to SDN what is the Data Plane Tier?

Answer 24

Manages the switches and performs the element setup