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A+ 1101 Core 2 > S14 - Local Area Networking > Flashcards

S14 - Local Area Networking Flashcards

1
Q

TCP/IP was a protocol adopted by

A

ARPANET

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2
Q

IP addresses have x octets ranging from y to z

A

4 0-255

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3
Q

Subnet masks are used to… only on…

A

differentiate IPs on a local LAN vs outside traffic Ipv4

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4
Q

What is used on windows for setting up network information

A

network and sharing centre

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5
Q

Where can we setup IP, subnet mask and gateway

A

ethernet properties

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6
Q

What is it called when you manually set the IP

A

static IP

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7
Q

Class D addresses are for x and start with y

A

Multicast & 244.x.x.x

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8
Q

Class E addresses are x and start with y

A

reserved & 240.x.x.x

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9
Q

What are the 3 sets of private IPs that exist

A

Class A: 10.x.x.x, Class B: 172.16.x.x - 172.31.x.x, Class C: 192.168.x.x

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10
Q

What are loopback addresses used for

A

pinging our own router (127.0.0.1)

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11
Q

What does NAT allow for

A

reduced IP consumption

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12
Q

With NAT, internal networks use x and share y

A

Private IPs & public address

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13
Q

What will occur if no DHCP server is present and what will the IP assigned begin with

A

APIPA address and it will begin with 169.254.x.x

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14
Q

what command can we use to force a new connection to the DHCP server

A

ipconfig /renew

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15
Q

what does netstat show us

A

important information about connections

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16
Q

what are 2 common netstat switches

A

-n & -a

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17
Q

what is an alternative to netstat

A

TCPView

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18
Q

What does FQDN stand for

A

fully qualified domain names

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19
Q

DNS does what with our FQDNs

A

Convert to IP

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20
Q

What does DMARC stand for

A

domain based message authentication, reporting and conformance

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21
Q

What is the role of DMARC

A

enters records of domains to avoid spoofing

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22
Q

DKIM stands for

A

Domain Keys Identified Mail

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23
Q

Role of DKIM

A

enables the sender to sign their message and verify their ID

24
Q

command to see a system’s DNS servers

A

ipconfig /all

25
Q

what can we use to check if a DNS server is running

A

nslookup

26
Q

All windows systems will be a member of either a

A

workgroup or a domain

27
Q

How is active directory accessed

A

purchasing a specialised version of windows

28
Q

SMB stands for

A

Server message block

29
Q

SMB function

A

common method of windows file and folder sharing over TCP/IP

30
Q

What will all computers be able to do if they are on the same workgroup

A

see each other

31
Q

What is an active directory domain

A

A dedicated domain controller with windows server software installed

32
Q

What do we use to organise members of a domain

A

Organisation units (OUs) & Forests

33
Q

MacOS and Linux use x instead of SMB

A

Samba

34
Q

How can we get around file and folder sharing from Linux/MacOS to Windows

A

name of workgroup/domain and system computer name

35
Q

Router function

A

Route and direct traffic based on IP & connect devices on a LAN

36
Q

Routing table function

A

Determines where to filter or forward IP packets

37
Q

every routing table has a

A

default gateway

38
Q

ACL stands for

A

Access control list

39
Q

2 types of firewall

A

stateful and stateless

40
Q

stateless firewall

A

blocks traffic based on fixed criteria such as port number, time of day, URL and so on

41
Q

stateful firewall

A

block traffic based on actions taking place at that moment e.g. 30 connection to google.com on the space of 3 seconds

42
Q

DMZ stands for

A

Demilitarised zone

43
Q

DMZ function

A

router all the traffic to 1 specific computer on a network

44
Q

Windows classifies networks into 3 types:

A

Public (Airport), Private, (home LAN), Domain (school network / corporate environment)

45
Q

Port forwarding function

A

router allows incoming traffic on a certain port access to a specific system on the network

46
Q

DDNS stands for

A

Dynamic Domain Name System

47
Q

DDNS allows us to

A

gives names to port forwarded devices

48
Q

QOS stands for + function

A

quality of service and allows us to limit bandwidth for devices

49
Q

uPnP stands for + function

A

Universal plug and plug which allows for quicker querying of network devices

50
Q

SNMP stands for

A

Simple network management protocol

51
Q

SNMP allows for

A

Access to additional details about a device

52
Q

Switches use what instead of IP addresses

A

MAC addresses

53
Q

2 types of switch

A

Managed (expensive with more options) and unmanaged

54
Q

VLANS allow us to

A

segment our network for security purposes

55
Q

SDN stands for

A

Software Defined Network

56
Q

SDN function

A

Lessen human error

57
Q

Function of port security

A

If an unknown MAC address attempt to connect to a port it will be disabled or the admin will be notified

A+ 1101 Core 2 (18 decks)

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