PHUB : Intro into Network addressing Flashcards

1
Q

Networks can be defined as _____________________?

A
  • Networks can be defined as :
    • a collection of interconnected hosts
      • generally via shared media which can be wired or wireless .
      • this enables the hosts to share information
      • a computer network can be as simple as two computers connected by a single wire.
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2
Q

the internet is a network of ____________?

A

networks

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3
Q

For any device to communicate to one another , they should be able to __________ each other.

A

identify

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4
Q

There are two ways to identify a device on a network.

what are they?

A
  1. mac address

and

  1. IP address
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5
Q

define a MAC address ?

A
  • MAC address:
    • is a factory coded 48-bits hardware address
    • used when devices are logically connected.
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6
Q

when are IP addresses used?

A
  • IP address :
    • is used when the devices are not logically conneted
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7
Q

true or false all devices are given a logical address.

A

true.

this logical address is called the Internet Protocol address .

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8
Q

what does OSI stand for ?

A

Open System Interconnection.

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9
Q

OSI is a ___________ ________ ________ .

A

layered conceptualized model.

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10
Q

The OSI defines how a _________ should communicate with the other .

A

system

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11
Q

what is layer 7 of the OSI model ?

A

Application layer

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12
Q

what is layer 6 of the OSI model?

A

Presentation layer

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13
Q

what is layer 5 of the OSI model ?

A

Session Layer

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14
Q

Name the 4th layer of the OSI model .

A

Transport layer

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15
Q

What is layer of 3 of the OSI model ?

A

Network Layer

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16
Q

Name layer 2 of the OSI model.

A

Data Link layer

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17
Q

What is layer 1 of the OSI model?

A

physical layer

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18
Q

Descibe the characteristics of the Application layer.

A
  • application layer:
    • ​This is where the user application sits​
    • it needs to transfer data between or among hosts
      • ​example: file transfer application(FTP) , electronic mail
    • this layer is also the only layer that the user interacts with.
    • allows acess for the user to get varied network services
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19
Q

the session layer controls ….?

A

all connections between multiple devices in a network

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20
Q

what layer tracks dialoge between devices on a network ?

A

session layer

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21
Q

the transport layer is used to …..?

A

transfer data between applications

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22
Q

what layer is responsible for ened to end communication on a network?

A

the transport layer

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23
Q

the network layer knows the …..?

A

address of treh nearby nodes in a network

24
Q

the majority of teh internet uses….. ?

A

TCP/IP suite

25
Q

the three top layers of teh OSI model are compressed together in a single …..?

A

application layer of the TCP/IP model

26
Q

the TCP/IP has what layers ?

A
  1. host to network layer (link layer)
  2. internet layer
  3. transport layer
  4. application layer
27
Q

what layer is the lowest in the TCP/IP model ?

A

link layer

28
Q

the TCP/IP link layer comprises what two layers?

A
  1. Physical

and

  1. Data link layer
29
Q

what is the top layer of the TCP/IP model?

A

application layer

30
Q

the application layer of the TCP/IP model defines….?

A

the interface of host programs w/ the transport layers services

31
Q

consider any data , it is a combination of …?

A

0s and 1s

32
Q

the internet works by ….?

A

chopping data into chucks called packets

33
Q

a data packet or network packet is ….?

A

a collection name of several components

34
Q

the internet layer of the TCP/IP models defines …..?

A

the protocols for logical transmission of data over a network

35
Q

what is the main protocol of the TCP/IP internet layer?

A

Internet Protocol(IP)

36
Q

The transport layer of the TCP/IP is responsible for …..?

A

error free end to end delivery fo data

37
Q

What are the main protocols of the TCP/IP transport layer

A
  1. Transmission Control Protocol
  2. User datagram Protocol (UDP)
38
Q

what are TCP packets called ?

A

segments

39
Q

UDP packets ar called ….?

A

datagrams

40
Q

class B IP addresses range from …?

A

128.0.x.x to 191.255.x.x.

41
Q

what is the default subnet mask for class B addresses ?

A

255.255.x.x.

42
Q

class B has ________ network addresses and __________ host addresses

A

16384 , 65534

43
Q

class C addresses range from …..?

A

192.0.0.x. to 223.255.255.x.

44
Q

what is the defualt subnet mask for class C?

A

255.255.255.x.

45
Q

what is class D’s ip address range?

A

224.0.0.0 to 239.255.255.255.

46
Q

class D is reserved for ….?

A

mulitcasting

47
Q

in multicasting ,data is not destined for a particular ….?

A

host

48
Q

does class D gave a subnet mask?

A

no

49
Q

what IP class is reserved for experimental purposes only for R&D and study?

A

class E

50
Q

IP addresses in class E range from….?

A

240.0.0.0 ro 255.255.255.254

51
Q

is class E equipped with a subnet mask ?

A

no

52
Q

Subnetting is the practice of dividing a network ……?

A

into two or mor smaller networks

53
Q

subnetting increases…..?

A

routing efficiency , enhances teh security of the network

54
Q

subnetting also reduces the size of the….?

A

broadcast domain

55
Q

subnetting allows us to create …..?

A

smaller networks from a single large network

56
Q

if all hosts are in the same domain than a broadcast sent by any device in that domain will be ….?

A

processed by all hosts.

which would create alot of unnessary traffic

57
Q
A