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Network+ > Messer Notes 3 > Flashcards

Messer Notes 3 Flashcards

1
Q

EUI

A

Extended unique Identifier
64 bit
adding mac address as ipv6

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2
Q

Dual-stack routing

A

router can use both IPv4 and IPv6 at the same time

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3
Q

NS

A

neighbor Solicitation
Sent as a multicast
Who has this MAC address

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4
Q

NA

A

neighbor advertisement
return from a NS
I match the MAC address of the NS

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5
Q

SLAAC

A

stateless address Autoconfiguration

automatically configure an IP address without a DHCP server

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6
Q

DAD

A

duplicate address detection

active on IPv6 to avoid duplicate address

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7
Q

RA

A

router advertisement

response to show a device is a router in IPv6

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8
Q

TCP 23

A

Telnet
login to device remotely
unsecure/in the clear communication

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9
Q

TCP 22

A

SSH-Secure Shell

secure

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10
Q

UDP 53

A

DNS Domain Name System
Converts names to IP addresses
large transfers use TCP 53

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11
Q

TCP 25/587

A

SMTP simple mail transfer protocol
25 in the clear
587 secure using TLS encyipton

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12
Q

TCP 110

A

POP3

basic mail transfer functionality

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13
Q

TCP 143/993

A

IMAP4- Internet Message Access Protocol
includes management option deleting mail
993 TLS encryption

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14
Q

tcp 22

A

SFTP Secure file transfer protocol
encrypted communication of files
more features

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15
Q

tcp 20/21

A

FTP file transfer protocol
20 active mode
21 control

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16
Q

udp 69

A

TFTP trivial File Transfer Protocol

simple file transfer

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17
Q

udp 67/68

A

DHCP

requires DHCP server

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18
Q

DHCP pool

A

available ip address for assignment in a ip network

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19
Q

DHCP reservation

A

assign a address to a mac address

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20
Q

tcp 80

A

http

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21
Q

tcp 443

A

https

22
Q

udp 161

A 
SNMP  simple network management protocol
different version
v1 in  the clear transfer 
v2 bulk in the clear
v3 a secure standard 
gather network statistics
23
Q

SNMP traps

A

alerts and notification when something happens

udp 162

24
Q

udp 514

A

Syslog
standard for message logging
usually a central log collector

25
Q

tcp 3389

A

RDP

26
Q

udp 123

A

NTP

27
Q

tcp 5060/5061

A

SIP
VoIP signaling
setup and manage Voip sessions

28
Q

tcp 445

A

SMB server message block

file sharing print sharing

29
Q

tcp 389

A

LDAP

store and retrieve information in a network directory

30
Q

tcp 636

A

a non-standard secure ldap

31
Q

tcp 1433

A

SQL

Microsoft Structure Query Language

32
Q

GRE

A

generic routing encapsulation
encapsulate traffic inside of IP
direct connection
no built in encryption

33
Q

VPN Concentrator

A

encryption/decryption access device
often integrated into a firewall
software/hardware solution
client software

34
Q

IPSec

A

internet Protocol Security

Security for OSI layer 3

35
Q

AH

A

Authentication Header

used in IPsec

36
Q

ESP

A

Encapsulation Security Payload

used in Ipsec

37
Q

255.255.255.255

A

network broadcast address

38
Q

DHCP relay/IP helper

A

router configuration that sees DHCP request and forwards the message to the DHCP server

39
Q

T1 timer

A

check in with DHCP server to renew the ip address

40
Q

T2 timer

A

if DHCP server is down try rebinding with any DHCP server

41
Q

FQDN

A

Fully Qualified Domain Name

DNS hierarchy

42
Q

Reverse DNS

A

provide ip address to get the FQDN website name

43
Q

RR

A

resource records

database of DNS

44
Q

SOA

A

start of authority

describes the DNS zone details

45
Q

A/AAAA

A

address record

DNS record that holds IPv4 addresses

46
Q

CNAME

A

A name is an alias of another, canonical name

one physical server multiple services

47
Q

SRV

A

Find a specific service

where is Voip

48
Q

MX

A

determines the host name for the mail server

this isn’t a ip address but a name

49
Q

NS

A

name server list

list the name of server

50
Q

PTR

A

pointer record
the reverse of the A or AAAA record
reverse look up

51
Q

TXT

A

Text record
SPF protocol- prevent spoofing, mail servers check that incoming mail really did come from an authorized host
DKIM- Domain Keys Identified Mail, digitally sign your outgoing mail

Network+ (10 decks)

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