S14 - Local Area Networking

Question 1

TCP/IP was a protocol adopted by

Answer 1

ARPANET

Question 2

IP addresses have x octets ranging from y to z

Answer 2

4 0-255

Question 3

Subnet masks are used to… only on…

Answer 3

differentiate IPs on a local LAN vs outside traffic Ipv4

Question 4

What is used on windows for setting up network information

Answer 4

network and sharing centre

Question 5

Where can we setup IP, subnet mask and gateway

Answer 5

ethernet properties

Question 6

What is it called when you manually set the IP

Answer 6

static IP

Question 7

Class D addresses are for x and start with y

Answer 7

Multicast & 244.x.x.x

Question 8

Class E addresses are x and start with y

Answer 8

reserved & 240.x.x.x

Question 9

What are the 3 sets of private IPs that exist

Answer 9

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

Question 10

What are loopback addresses used for

Answer 10

pinging our own router (127.0.0.1)

Question 11

What does NAT allow for

Answer 11

reduced IP consumption

Question 12

With NAT, internal networks use x and share y

Answer 12

Private IPs & public address

Question 13

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

Answer 13

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

Question 14

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

Answer 14

ipconfig /renew

Question 15

what does netstat show us

Answer 15

important information about connections

Question 16

what are 2 common netstat switches

Answer 16

-n & -a

Question 17

what is an alternative to netstat

Answer 17

TCPView

Question 18

What does FQDN stand for

Answer 18

fully qualified domain names

Question 19

DNS does what with our FQDNs

Answer 19

Convert to IP

Question 20

What does DMARC stand for

Answer 20

domain based message authentication, reporting and conformance

Question 21

What is the role of DMARC

Answer 21

enters records of domains to avoid spoofing

Question 22

DKIM stands for

Answer 22

Domain Keys Identified Mail

Question 23

Role of DKIM

Answer 23

enables the sender to sign their message and verify their ID

Question 24

command to see a system’s DNS servers

Answer 24

ipconfig /all

Question 25

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

Answer 25

nslookup

Question 26

All windows systems will be a member of either a

Answer 26

workgroup or a domain

Question 27

How is active directory accessed

Answer 27

purchasing a specialised version of windows

Question 28

SMB stands for

Answer 28

Server message block

Question 29

SMB function

Answer 29

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

Question 30

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

Answer 30

see each other

Question 31

What is an active directory domain

Answer 31

A dedicated domain controller with windows server software installed

Question 32

What do we use to organise members of a domain

Answer 32

Organisation units (OUs) & Forests

Question 33

MacOS and Linux use x instead of SMB

Answer 33

Samba

Question 34

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

Answer 34

name of workgroup/domain and system computer name

Question 35

Router function

Answer 35

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

Question 36

Routing table function

Answer 36

Determines where to filter or forward IP packets

Question 37

every routing table has a

Answer 37

default gateway

Question 38

ACL stands for

Answer 38

Access control list

Question 39

2 types of firewall

Answer 39

stateful and stateless

Question 40

stateless firewall

Answer 40

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

Question 41

stateful firewall

Answer 41

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

Question 42

DMZ stands for

Answer 42

Demilitarised zone

Question 43

DMZ function

Answer 43

router all the traffic to 1 specific computer on a network

Question 44

Windows classifies networks into 3 types:

Answer 44

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

Question 45

Port forwarding function

Answer 45

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

Question 46

DDNS stands for

Answer 46

Dynamic Domain Name System

Question 47

DDNS allows us to

Answer 47

gives names to port forwarded devices

Question 48

QOS stands for + function

Answer 48

quality of service and allows us to limit bandwidth for devices

Question 49

uPnP stands for + function

Answer 49

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

Question 50

SNMP stands for

Answer 50

Simple network management protocol

Question 51

SNMP allows for

Answer 51

Access to additional details about a device

Question 52

Switches use what instead of IP addresses

Answer 52

MAC addresses

Question 53

2 types of switch

Answer 53

Managed (expensive with more options) and unmanaged

Question 54

VLANS allow us to

Answer 54

segment our network for security purposes

Question 55

SDN stands for

Answer 55

Software Defined Network

Question 56

SDN function

Answer 56

Lessen human error

Question 57

Function of port security

Answer 57

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