2.5 Given a scenario, implement cybersecurity resilience.

Question 1

Redundancy

Answer 1

Strategy on keeping systems operational during a failures.

Question 2

Geographical Dispersal

Answer 2

Data centers in a different place to avoid natural disasters.

Question 3

Multipath I/O

Answer 3

Multipath input/Output
having more than one way to direct traffic if a switch goes down.

Question 4

RAID

Answer 4

Data that is spread through out several other disk. Used for back ups.

Question 5

Load Balancers

Answer 5

directs loads(data) to a specific server when one server is down.

helps moves data on a network so one server is not over whelmed.

Question 6

NIC teaming

Answer 6

Multiple NICs(bond) on a server. Helps provide redundancy to by switching to another NIC when it is down.

Question 7

UPS

Answer 7

Uninterruptible Power Supply

Temporary power supply for when a system is down. Needs to be replaced by a sufficient power source later though.

Question 8

Generator

Answer 8

Power supply that runs off gas or diesel. Is used when there is no normal source of power.

Question 9

Dual Supply

Answer 9

Having to 2 power supplies that can handle the same load.

Question 10

PDU

Answer 10

Power Distribution Units
monitored and controlled power for server racks.

Question 11

SAN

Answer 11

Storage Area Network

A high-performance storage facility where data is stored separate from the computer.

Multiple storage

Question 12

VM Replication

Answer 12

VM can act as a back up by copying files\data on all VMs.
If one VM goes down you can just pull data from the other VM

Question 13

On Premises Redundancy

Answer 13

local back up storage service.
fast, costly, more secure

Question 14

Cloud Redundancy

Answer 14

Data back ups located in the cloud.
Slow, cheap, security concern.

Question 15

Full Back Up

Answer 15

Back ups everything within the computer\device

Question 16

Incremental Back up

Answer 16

Backs up only the files that where changed since the last full or incremental back up

Question 17

Differential Back Up

Answer 17

Back ups only files from the last full back up

Question 18

Tape (Back Up)

Answer 18

A magnetic tape that has is used for storage

Question 19

NAS

Answer 19

Network Attached Storage

a single storage machine that is connected to the network

Question 20

Image (Back Up)

Answer 20

Captures the entire system of the data.
Making a duplicate

Question 21

Offline Back up

Answer 21

Local, fast, secure

Question 22

Online Back Up

Answer 22

Over the network, Encrypted, can be slow, back up anywhere

Question 23

Non-persistence

Answer 23

System items that change and are not permanent

Question 24

Snap Shot

Answer 24

Capture current config settings.

Question 25

Revert to known state

Answer 25

Go back to the original config settings

Question 26

High Availability

Answer 26

Immediate access to a system when your system goes down

Question 27

Elasticity

Answer 27

Scaling out

Question 28

Scalability

Answer 28

Scale up

Question 29

Order of Restoration

Answer 29

Plan of what needs to be restored first

Question 30

Diversity

Answer 30

having different systems so that if a attack happens to a specific system. Your entire system wont be down

Need different:
Vendors, Technology, Crypto

Question 31

Crypto (diversity)

Answer 31

having differnt certificates so that if one is compromised it can be changed