Memorize - Other

Question 1

TCP Transmission Control Protocol

Answer 1

Reliable
CONNECTION oriented
Segment retransmission & flow control (windowing)
With segmentation sequencing

Question 2

UDP User Datagram Protocol

Answer 2

NOT reliable
CONNECTIONLESS
NO transmission and NO windowing
WITHOUT sequencing

Question 3

Identify the problem

Answer 3

1

Question 4

Establish a theory of probable cause

Answer 4

2

Question 5

Test the theory to determine the cause

Answer 5

3

Question 6

Establish a plan of action to resolve the problems and implement the solution

Answer 6

4

Question 7

Verify full system functionality

Answer 7

5

Question 8

Document findings, actions, and outcome

Answer 8

6

Question 9

802.11a

Answer 9

Band: 5GHz
Bandwidth: 54Mbps

Question 10

802.11b

Answer 10

Band: 2.4 GHz
Bandwidth: 11Mbps

Question 11

802.11g

Answer 11

Band: 2.4 GHz
Bandwidth: 54 Mbps

Question 12

802.11n (Wi-Fi 4)

Answer 12

Band: 2.4 GHz AND 5Ghz
Bandwidth: 150 Mbps/600 Mbps MIMO

Question 13

802.11ac (Wi-Fi 5)

Answer 13

Band: 5GHz
Bandwidth: 3 Gbps MU-MIMO

Question 14

802.11ax (Wi-Fi 6)

Answer 14

Band: 2.4GHz, 5GHz, and 6GHz
Bandwidth: 9.6 Gbps MU-MIMO

Question 15

Public Cloud

Answer 15

Systems and users interact with devices on public networks, such as the
Internet and other clouds

Question 16

Private Cloud

Answer 16

Systems and users that only have access with other devices inside the
same private cloud or system

Question 17

Hybrid Cloud

Answer 17

Combination of private and public clouds

Question 18

Community Cloud

Answer 18

Collaborative effort where infrastructure is shared between several
organizations from a specific community with common concerns

Question 19

NAT Network Address Translation

Answer 19

allows for routing of private IPs through a public IP

Question 20

APIPA Automatic Private IP Address

Answer 20

Used when a device does not have a static IP address or cannot reach a DHCP server

Question 21

PoE Power over Ethernet

Answer 21

Supplies electrical power from a switch port over an ordinary data cable to a power device

Question 22

Cable Moden

Answer 22

Device that translates coaxial cable signals into phone lines

Question 23

ONT Optical Network Terminal

Answer 23

Terminates fiber connection

Question 24

SDN Software Defined Netowrking

Answer 24

Way of virtualizing network hardware

Question 25

Fiber Optic Cable

Answer 25

Uses light from an LED or laser to transmit information through a thin glass fiber

Question 26

Single Mode Fiber

Answer 26

used for longer distances and has a smaller core size

Question 27

multimode fiber

Answer 27

used for shorter distances and has a larger

Question 28

10 range

Answer 28

Class A

Question 29

172.16-172.31

Answer 29

Class B

Question 30

192.168

Answer 30

Class C

Question 31

DNS Record - A

Answer 31

Address, links a hostname to an IPv4 address

Question 32

DNS Record - AAAA

Answer 32

Address, Links a hostname to an IPv6 address

Question 33

DNS Record - CNAME

Answer 33

Canonical Name, points a domain to another domain or subdomain

Question 34

DNS REcord - MX

Answer 34

Mail Exchange, Directs emails to a mail server

Question 35

DNS REcord - TXT

Answer 35

Text, adds text into the DNS

Question 36

DNS Record - NS

Answer 36

Nameserver, indicates which DNS nameserver has the authority

Question 37

DKIM, DomainKeys Identified Mail

Answer 37

provides cryptographic authentication mechanism for mail using a public key published as a DNS record

Question 38

DMARC, Domain-based Message Authentication, Reporting & Conformance

Answer 38

Framework that is used for proper application of SPF and DKIM, utilizing a policy that's published as a DNS record.

Question 39

Cable stripper

Answer 39

used to cut a piece of cable off a larger spool or run of cable

Question 40

Cable crimper

Answer 40

Used to attach the connector to the end of the cable

Question 41

Wire mapping tool

Answer 41

works like a cable tester, but specifically for twisted pair ethernet cables

Question 42

Punchdown block

Answer 42

terminates the wires and strips off excess installation of extra wires that are no longer needed