Os Exam: Diamond Is Unbreakable

Front 1

Trojan

Back 1

A program that presents itself as innocent, but is actually there to get your passwords and other information.

Front 2

Virus

Back 2

It erases portions of code to create a path that changes your program and adds malicious code to it.

Front 3

Worm

Back 3

Something that starts up processes that allow it to replicate itself and spread to other computers.

Front 4

page fault

Back 4

A number of times a thing needs to be loaded from the paging file. Causes thrashing

Front 5

Grep

Back 5

A search tool that searches inside documents

Front 6

What port does FTP use? (same as secure shell)

Back 6

22

Front 7

What does SSH do?

Back 7

It lets people hack phones and get root passwords.

Front 8

What are the two most well-known ports

Back 8

80 (HTTP) and 443 (httsp)

Front 9

Describe Linux permissions

Back 9

Three groups of three digits. (read, write, execute)

First is the owner, then group, then everyone.

ex. rwx - w-- - --x

Read = 4, Write = 2, Execute = 1

Front 10

What does a single dot mean in the CLI?

Back 10

In the current directory

Front 11

What does TCP do?

Back 11

It ensures the delivery of packets

Front 12

What does UDP do?

Back 12

It doesn't care if the packets are delivered. Good for audio and video, stuff keeps on coming without stopping.

Front 13

What is DHCP? (Dynamic Host Configuration Protocol)

Back 13

Gives a device its IP addresses

Front 14

What is a WAN?

Back 14

A connection of different LANs

Front 15

What is the Server Message Block (SMB)?

Back 15

It's the message format used by DOS and Windows to share files, directories, and devices.

Front 16

What does the DIR command do?

Back 16

It displays a list of a directory's files and subdirectories.

Front 17

What are some characteristics of NTFS?

Back 17

It is a very robust system, but it's not very readable. It also has journalizing.

Front 18

What are some characteristics of EXT3

Back 18

Used in Linux, has the same functionality as NTFS. with the 3rd edition (EXT3), it had journalizing.

Front 19

What are some characteristics of FAT?

Back 19

It is universally readable and writeable, has partition limit, file limit of 4Gb), no encryption, no compression.

Front 20

What is VPN? (virtual private network)

Back 20

Uses tunneling to transfer data safely.

Used when making a private network is too costly. it's less secure, but it's still pretty secure.

Front 21

What does FTP do?

Back 21

It allows for the rapid transfer of files across the web.

Front 22

What is SMTP used for?

Back 22

sending and receiving email.

Front 23

What is a set of rules that lets two computers talk to each other?

Back 23

protocol

Front 24

In the absence of DHCP, all hosts on a network must be manually configured with static IP addresses. True or False?

Back 24

True

Front 25

What is the Linux version of SMB?

Back 25

Samba

Front 26

USB 3.0 has a transmission rate of...

Back 26

5 Gb/s

Front 27

Which Windows Explorer control allows you to connect a drive letter to a shared resource on another computer?

Back 27

Map network drive

Front 28

A card catalog to the files on your hard drive

Back 28

index

Front 29

What is it when your computer uses the paging file too much.

Back 29

Thrashing

Front 30

What is the Linux version of Task Manager?

Back 30

System Monitor