Domain 2: Memory and Remanence

Question 1

Data that persists beyond noninvasive means to delete it.

Answer 1

Data Remanence

Question 2

Data most frequently used by the CPU

Answer 2

Cache Memory

Question 3

CPU onboard memory

Answer 3

Register

Question 4

Cache dedicated to a single processor core

Answer 4

Level 1/2 Cache

Question 5

Cache shared between cores

Answer 5

Level 3 Cache

Question 6

Cache located on the motherboard or on the GPU

Answer 6

Level 4 Cache

Question 7

Memory that uses small latches called “flip-flops” to store bits
Fastest RAM

Answer 7

Static random-access memory (SRAM)

Question 8

Memory that stores bits in small capacitors that hold a charge (representing 1 bit) or do not hold a charge (representing 0 bit)

Answer 8

Dynamic random-access Memory (DRAM)

Question 9

ROM chip which contents aren’t burnt in during the manufacturing process. Instead allows the end user to burn in the chip contents later.
Once written no further changes are possible

Answer 9

Programmable read-only memory (PROM)

Question 10

Category of PROM chips that allow content on a ROM chip to be erased

Answer 10

Erasable programmable read-only memory (EPROM)

Question 11

Type of EPROM
ROM chip with a small window, that when illuminated with a special ultraviolet light cause the contents of the chip to be erased

Answer 11

Ultraviolet EPROM

Question 12

Type of EPROM

ROM chip that uses eclectic voltages delivered to the pins of the chip to force contents to be erased

Answer 12

Electronically Erasable programmable read-only memory (EEPROM)

Question 13

What is the difference between EEPROM vs Flash memory?

Answer 13

EEPROM must be fully erased to be rewritten

Flash memory can be erased and written in blocks or pages

Question 14

SSDs do not overwrite blocks that contain data, what does it do?

Answer 14

It writes data to unused block and marks the previous block as unallocated

Question 15

What are the two valid options for destroying data on SSD drives?

Answer 15

ATA Secure Erase

Destruction

Question 16

Data destruction method
Writes over every character of data on a disk
Allows for media reuse
i.e. zeroing out

Answer 16

Clearing or Overwriting

Question 17

Data destruction method

Repeats the clearing process multiple time and may combine it with other method

Answer 17

Purging

Question 18

Data destruction method

Uses a strong magnetic field to destroy the integrity of the data on a hard drive

Answer 18

Degaussing

Question 19

Data destruction method
Physically destroys the media device itself
i.e. incineration, shredding, acid chemicals, etc.

Answer 19

Destruction

Question 20

Memory that loses its contents when system enters an unpowered state

Answer 20

Volatile memory

Question 21

Memory retains it contents, even when there is no power to the system

Answer 21

Nonvolatile memory

Question 22

Is the same as memory

Answer 22

Primary storage

Question 23

Consists of magnetic, flash, and optical media that must be read into primary memory before the CPU can use the data

Answer 23

Secondary storage

Question 24

Data that can be read at any point

Answer 24

Random Access storage devices

Question 25

Requires scanning through all the data physically stored before the desired data location is brought up

Answer 25

Sequential access devices

Question 26

What are the three main security issues surrounding secondary storage devices?

Answer 26

1. Removable media can be used to steal data
2. Access controls and encryptions must be applied to protect data
3. Data can remain on the media even after file deletion of media formatting

Question 27

What are some security risks posed that input/output devices can pose?

Answer 27

1. Subject to eavesdropping and tapping
2. Used to smuggle data out of an organization
3. Can create insure point of entry into an organization’s system and networks