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Network+ Flashcards

1
Q

IP4 address can play one of of three roles

A

host (assignable addresses), broadcast address (comes at the end of IP address), NetID (beginning of IP address). one at a time

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2
Q

IPv4 has what kind of notation?

A

octet 3 decimal-dots. 8 bits of information

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3
Q

IPv6

A

hexadecimal. 8 groups of 16 bits= 128 bit address. seperated by colons not decimals

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4
Q

Internet Engineering Task force

A

given rules to check out and put forward to request for comments

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5
Q

DNS

A

Domain name server. changes names to IP addresses

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6
Q

hardware address

A

physical address. hard-coded into the Network Interface Card

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7
Q

what are the 3 different types of NAT?

A

Dynamic NAT, Port address, and…

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8
Q

what is a Dynamic NAT?

A

7 different public addressses for computers to share in a network

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9
Q

What is a Port Address Translation?

A

IP + Port numbers distinguish the differences of computers from a private network. 1 IP address

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10
Q

Multicast

A

selected devices, not everyone. more than two devices

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11
Q

Unicast

A

single device to single device

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12
Q

Broadcast

A

every device. stays local

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13
Q

how to find the loop back address for IPv6?

A

every piece of IP address. 0:0:0:0:0:0:0:1

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14
Q

how does a host get an IP address?

A

static or dynamic host configuration protocol

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15
Q

decimal to binary?

A

subtraction

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16
Q

binary to decimal?

A

addition

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17
Q

decimal to hexadecimal

A

decimal>binary>hex

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18
Q

subnet mask

A

a string of 1’s and then 0’s. 255’s and some other number. the 1’s are the network portion and cannot change

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19
Q

find the number of hosts

A

(2^n)-2 where n is the number of 0’s. start writing numbers from the right.

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20
Q

make a custom subnet mask

A

determine a default subnet mask first. turn bits on from the left until the requirement is met. start writing 0’s from left and figure out the number of 1’s

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21
Q

default subnet mask

A

default nature of each class. a combination of 255’s and 0’s

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22
Q

stateless autoconfiguration

A

change MAC address into an IP address. add fffe in the middle of the second characters, then change 7th bit to either a 1 or a 0

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23
Q

APIPA

A

link local address. automatic supply IP addressing. no access to internet. failsafe for local communication. used if static address and DHCP take too long to establish

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24
Q

Tesnet

A

a choice for local communication

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25
IPv6 types of IP
unicast, global unicast address (multicast), anycast (one to one of many)
26
borrowed bits
the extra 1's past the default
27
VLSM
variable length subnet mask. individual masks that get as close to the requirement as possible. is not as wasteful as subnetting
28
client
always has a server giving it access to resources
29
host
any device with an IP address
30
VLAN
virtual LANS. virtual area network that exists because of software, not just physical connection
31
VPN
a LAN tunneled over a WAN connection (email, DoD)
32
MPLS
multi-protocol label switching. one of the most populat WAN protocols. physical layout flexibility. redundency and one-to-many connection
33
Peer to Peer
no one is in charge. systems can be a client, server, or both
34
bus topology
A+B connectors work with T connector. 10 users. one went bad, you had to check them all
35
star topology
devices connected to a central point
36
ring topology
each node regenerates the signal. only one device at a time can talk (token passing). one device down can stop the whole network
37
mesh topology
every device connects to every device. formula for number of segments- n(n-1)/2
38
point to point topology
only need 2 IP addresses
39
point to multi-point topology
more than one connectoin from a point to multiple points
40
OSI
open system interconnectoin
41
protocol data unit
what form is the date in, in any given layer of the OSI model. Do da dance so people fly back
42
CSMACD/CSMACA
collision detection/avoidance
43
DCE
data communication equipment. time-giving equipment
44
DTE
data terminal equipment. routers are DTE by default, listening for other devices to give it time. give a clock rate to change to DCE
45
3 types of NAT
PAT (port address translation) 1 IP address, SNAT(static NAT) many IP addreses, Dynamic NAT all using a pool of addresses
46
routing protocol
rules for how data is routed. IP is a routed protocol. OSPF is a routing protocol
47
3 ways a router is populated
static (manual entry), dynamic, physical connection
48
EGP
exterior gateway protocol
49
protocols
BGP-amin distance 20, EIGRP-90, OSPF- 110, RIP- 120 Is-Is- 115
50
link state protocols
OSPF, Is-Is
51
distance vector protocols
RIP v1&2, IGRP
52
hybrid protocol
hop count. the closest the better
53
collision domain
potential for devices to send at the same time. defined my switches
54
broadcast domain
dictated by number of VLANS and all interfaces on the router
55
what address does a switch use to populate MAC addresses?
source MAC address
56
spanning tree
stops switching loops by blocking unnecessary paths. know which ports to block
57
how many VLANS does an access port support?
one. other ports must be changed to trunk to support multiple
58
VLAN Trunking protocol
managed VLANs across a switched internetwork, client switches copy configuration from main VLAN automatically
59
Access control list
?
60
VPN
secure network within a public network
61
hybrid ctyptology
more security
62
AAA
authorization, authentication, accounting
63
RADIUS
remote access dial-in user service. connects quickly but the service is as fast as the network
64
TACACS
terminal access controller access control system
65
CHAP/MS-CHAP
authentication, encrypting the challange session
66
EAP
extensible authentication protocol
67
smurf attack
spoof IP addresss and take out device
68
LEAP and PEAP
protocols that challange to prove authorized user with authorized access

BOLC (13 decks)

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