Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

IT Basics > Bits And Bytes Course 2 Module 2 > Flashcards

Bits And Bytes Course 2 Module 2 Flashcards

1
Q

Bit

A

The smallest representation of data that a computer can understand

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

BGP (Border Gateway Protocol

A

A protocol by which routers share data with each other

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Broadcast

A

A type of Ethernet transmission sent to every single device on a LAN

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Broadcast Address

A

A special destination used by an Ethernet broadcast composed by all Fs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Cable Categories

A

copper and fiber

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Cables

A

Insulated wires that connect different devices to each other allowing data to be transmitted over them

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

CSMA/CD (Carrier-Sense Multiple Access with Collisioin Detection

A

Used to determine when the communications channels are clear and when the device is free to transmit data.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Client

A

A device that recieves data from a server

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Collision domain

A

A network segment where only one device can communicate at a time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Computer networking

A

THe full scope of how computers communicate with each other

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Copper Cable Categories

A

5, 5e, or 6,
how quickly data can be sent across them and how resistant they are to outside interference are all related to the way the twisted pairs inside are arranged

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Crosstalk

A

When an electrical pulse on one wire is accidentally detected on another wire

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

CRC (Cyclical Redundancy Check)

A

A mathematical transformation that uses polynomial division to create a number that represents a larger set of data. It is an important concept for data integrity and is used all over computing, not just network transmissions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Data packet

A

An all-encompassing term that represents any single set of binary data being sent across a network link

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Datalink layer

A

The layer in which the first protocols are introduced. This layer is responsible for defining a common way of interpreting signals, so network devices can communicate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Destination MAC address:

A

The hardware address of the intended recipient that immediately follows the start frame delimiter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Duplex communication

A

A form of communication where information can flow in both directions across a cable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Ethernet

A

The protocol most widely used to send data across individual links

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Ethernet frame

A

A highly structured collection of information presented in a specific order

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

EtherType field

A

It follows the Source MAC Address in a dataframe. It’s 16 bits long and used to describe the protocol of the contents of the frame

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Fiber optic cable

A

contain individual optical fibers which are tiny tubes made of glass about the width of a human hair. They use pulses of light to represent the ones and zeros of the underlying data

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Five layer model

A

A model used to explain how network devices communicate. This model has five layers that stack on top of each other: Physical, Data Link, Network, Transport, and Application

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Frame check sequence

A

It is a 4-byte or 32-bit number that represents a checksum value for the entire frame

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Full duplex

A

The capacity of devices on either side of a networking link to communicate with each other at the exact same time

25
Q

Half-duplex

A

while communication is possible in each direction, only one device can be communicating at a time

26
Q

Hexadecimal

A

A way to represent numbers using a numerical base of 16

27
Q

Hub

A

a physical layer device that broadcasts data to every computer connected to it

28
Q

(Internet Protocol) IP

A

The most common protocol used in the network layer

29
Q

(Internet Service Provider) ISP

A

A company that provides a consumer an internet connection

30
Q

Internetwork

A

A collection of networks connected together through routers - the most famous of these being the Internet

31
Q

Line coding

A

Modulation used for computer networks

32
Q

MAC(Media Access Control) address:

A

A globally unique identifier attached to an individual network interface. It’s a 48-bit number normally represented by six groupings of two hexadecimal numbers

33
Q

Modulation

A

A way of varying the voltage of a constant electrical charge moving across a standard copper network cable

34
Q

Multicast frame

A

If the least significant bit in the first octet of a destination address is set to one.
is similarly set to all devices on the local network signal, and it will be accepted or discarded by each device depending on criteria aside from their own hardware MAC address

35
Q

Network layer

A

the layer that allows different networks to communicate with each other through devices known as routers. It is responsible for getting data delivered across a collection of networks

36
Q

Network port

A

The physical connector to from a device to the network. This may be attached directly to a device on a computer network, or could also be located on a wall or on a patch panel

37
Q

Network switch

A

A level 2 or data link device that can connect to many devices so they can communicate. It can inspect the contents of the Ethernet protocol data being sent around the network, determine which system the data is intended for and then only send that data to that one system

38
Q

Node

A

Any device connected to a network. On most networks, each node will typically act as a server or a client

39
Q

Octet

A

Any number that can be represented by 8 bits

40
Q

(Organizationally Unique Identifier) OUI

A

The first three octets of a MAC address

41
Q

OSI model

A

A model used to define how network devices communicate. This model has seven layers that stack on top of each other: Physical, Data Link, Network, Transport, Session, Presentation, and Application

42
Q

Patch panel

A

A device containing many physical network ports

43
Q

Payload

A

The actual data being transported, which is everything that isn’t a header

44
Q

Physical layer

A

Represents the physical devices that interconnect computers

45
Q

Preamble

A

The first part of an Ethernet frame, it is 8 bytes or 64 bits long and can itself be split into two sections

46
Q

Protocol

A

A defined set of standards that computers must follow in order to communicate properly

47
Q

Router

A

A device that knows how to forward data between independent networks

48
Q

Server

A

A device that provides data to another device that is requesting that data, also known as a client

49
Q

Simplex communication

A

A form of data communication that only goes in one direction across a cable

50
Q

Source MAC address

A

The hardware address of the device that sent the ethernet frame or data packet. In the data packet it follows the destination MAC address

51
Q

(Start Frame Delimiter) SFD

A

The last byte in the preamble, that signals to a receiving device that the preamble is over and that the actual frame contents will now follow

52
Q

(Transmission Control Protocol) TCP

A

The data transfer protocol most commonly used in the fourth layer. This protocol requires an established connection between the client and server

53
Q

Transport layer

A

The network layer that sorts out which client and server programs are supposed to get the data

54
Q

Twisted pair cable

A

The most common type of cabling used for connecting computing devices. It features pairs of copper wires

55
Q

Unicast transmission

A

always meant for just one receiving address

56
Q

(User Datagram Protocol) UDP

A

A transfer protocol that does not rely on connections. This protocol does not support the concept of an acknowledgement. Only need to set a destination port and send the data packet

57
Q

(Virtual LAN) VLAN

A

It is a technique that lets you have multiple logical LANs operating on the same physical equipment

58
Q

VLAN header

A

A piece of data that indicates what the frame itself is. In a data packet it is followed by the EtherType

IT Basics (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions