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ICND1 > The Functions of Networking > Flashcards

The Functions of Networking Flashcards

1
Q

Topology that is effectively connected by one single cable

A

Bus topology

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2
Q

Topology that refers to the logical paths that the signals use to travel from one point on a network to another

A

logical topology

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3
Q

Topology that is effectively connected by one single cable

A

Bus topology

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4
Q

topology with one central connection device with an additional network device.

A

extended-star topology

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5
Q

Topology that refers to the logical paths that the signals use to travel from one point on a network to another

A

logical topology

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6
Q

Topology that refers to the logical paths that the signals use to travel from one point on a network to another

A

logical topology

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7
Q

topology that resembles the spokes in a bicycle wheel with one central connection device where all segments meet

A

star topology

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8
Q

topology with one central connection device with an additional network device.

A

extended-star topology

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9
Q

topology where all devices on the network are connected in the form a of a circle.

A

ring topology

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10
Q

topology where all devices connect to each other for redundancy and fault tolerance

A

full-mesh topology

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11
Q

topology where at least one device maintains multiple connections to all other devices without having all other devices fully meshed

A

partial-mesh topology

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12
Q

what tcp/ip layer is http

A

application

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13
Q

what tcp/ip layer is pop3

A

application

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14
Q

what tcp/ip layer is smtp

A

application

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15
Q

what tcp/ip layer is t1

A

data link

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16
Q

what tcp/ip layer is ip

A

network

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17
Q

what tcp/ip layer is ethernet

A

data link

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18
Q

what tcp/ip layer is ppp

A

data link

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19
Q

what tcp/ip layer is t1

A

data link

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20
Q

layer of osi that provides an interface between the communications software and the applications. also defines processes for user authentication

A

application

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21
Q

layer of osi whose main purpose is to define and negotiate formats such as ascii text, ebcdic text, binary, bcd, and jpeg. encryption is also defined by this layer

A

presentation

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22
Q

layer of osi defines how to start, control, and end conversations

A

session

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23
Q

layer of osi that deal with physical transmission medium including connectors, pins, electrical currents, etc

A

physical

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24
Q

osi layer device hosts

A

application/presentation/session or transport

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25
osi layer device firewalls
application/presentation/session or transport
26
osi layer device router
network
27
osi layer device lan switch
data link
28
osi layer device wireless access point
data link
29
osi layer device cable modem
data link
30
osi layer device dsl modem
data link
31
osi layer device lan hub
physical
32
osi layer device lan repeater
physical
33
osi layer device cables
physical
34
10base-t speed/name/ieee standard
10mbps/ethernet/802.3
35
100base-t speed/name/ieee standard
100mbps/fast ethernet/802.3u
36
1000base-lx speed/name/ieee standard
1000mbps/gigabit ethernet/802.3z
37
1000base-t speed/name/ieee standard
1000mbps/gigabit ethernet/802.3ab
38
10gbase-t speed/name/ieee standard
10gbps/10 gig ethernet/802.3an
39
to send data, two devices follow rules called an
encoding scheme
40
how many bits in a mac address
48 bits
41
how many bytes long is a mac address
6 bytes
42
an address that represents one internet to the Ethernet LAN
unicast address
43
universally unique part of the mac address,
oui - organizationally unique identifier
44
oui - how many bytes/where is it located
first 3 bytes (24 bits)
45
media access control 802.3 defines the mac sublayer of ieee ethernet
MAC
46
3 other names often used instead of MAC address. These terms describe the 6-byte address of the LAN interface card
Ethernet address, NIC address LAN address
47
the 6-byte address assigned by the vendor making the card
burned-in address
48
a term for a mac address that represents a single lan interface
unicast
49
address that means "all devices that reside on this LAN right now"
broadcast address
50
on Ethernet, an address that implies some subset of all devices currently on the Ethernet lan
multicast address
51
the only field in the ethernet trailer that gives the receiving node a way to compare results with the sender, to discover whether errors occurred in the frame
fcs - frame check sequence
52
often used as synonyms in telco terminology; makes reference to the electrical circuit between two endpoints
leased circuit/circuit
53
links use serial lines
serial link/ serial line
54
refers to the fact that the topology stretches between two points, and two points only.
point-to-point link/line
55
specific type of leased line that transmits at 1.544 mbps
t1
56
refers to the fact that the data sent over the line cannot be copied by other telco customers
private line
57
router, serial interface card, and csu/dsu that belongs to or resides the customer's property
cpe - customer premise equipment
58
serial cable male end that is connected to the customers router
dte - data terminal equipment
59
serial cable female end that is connected to the service providers router and provides the clocking for the serial connection
dce - data communications equipment
60
the process of hosts and routers forwarding ip packets, while relying on the underlying lans and wans to forward the bits
ip routing
61
addresses used to identify a packet's source and destination host computer
ip addressing
62
protocol that aids routers by dynamically learning about the ip address groups so that a router knows where to route ip packets so that they go to the right destination host
ip routing protocol
63
another name for the default router
default gateway
64
how many bytes is a ip v4 header
4 bytes wide, total of 20 bytes
65
class A space
1-126 unicast
66
class B space
128-191 unicast
67
class C space
192-223 unicast
68
reserved ip space
127
69
class D space
224-239 multicast
70
class E space
240-255 experimental
71
FTP data port
20/tcp
72
FTP control port
21/tcp
73
SSH port
22/tcp
74
telnet port
23/tcp
75
SMTP port
25/tcp
76
DNS port
53/tcp or udp
77
DHCP port
67, 68 udp
78
TFTP port
69 udp
79
HTTP port WWW
80/tcp
80
POP3 port
110/tcp
81
SNMP port
161/udp
82
SSL port
443/tcp
83
the volume of bits per second needed for the application to work well
bandwidth
84
the amount of time it takes one ip packet to flow from sender to receiver
delay
85
variation in delay
jitter
86
the percentage of packets discarded by the network before they reach the destination, which when using tcp, requires retransmission
loss
87
uniform resource locator
url-web address

ICND1 (2 decks)

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