Cisco Networking Academy Chapter 3

Front 1

What are the 4 layers of the TCP/IP stack?

Back 1

Application Layer
Transport Layer
Internet Layer
Network Access Layer

Front 2

What layer of the TCP/IP stack do the following protocols function on?

DNS, BOOTP, DHCP, SMTP, POP, IMAP, FTP, TFTP, HTTP

Back 2

Application layer

Front 3

What layer of the TCP/IP stack do the following protocols function on?

UDP, TCP

Back 3

Transport Layer

Front 4

What layer of the TCP/IP stack do the following protocols function on?

IP, NAT, ICMP, OSPF, EIGRP

Back 4

Internet layer

Front 5

What layer of the TCP/IP stack do the following protocols function on?

ARP, PPP, Ethernet, Interface Drivers

Back 5

Network Access Layer

Front 6

The Internet Society (ISOC)

Back 6

is responsible for promoting open development, evolution, and Internet use throughout the world.

Front 7

The Institute of Electrical and Electronics Engineers

IEEE

Back 7

is a professional organization for those in the electrical engineering and electronics fields who are dedicated to advancing technological innovation and creating standards.

Front 8

The International Organization for Standardization

ISO

Back 8

is the world’s largest developer of international standards for a wide variety of products and services.

Responsible for the OSI model

Front 9

The Internet Corporation for Assigned Names and Numbers

ICANN

Back 9

is a non-profit organization based in the United States that coordinates IP address allocation, the management of domain names used by DNS, and the protocol identifiers or port numbers used by TCP and UDP protocols.

Front 10

The Internet Assigned Numbers Authority

IANA

Back 10

is a department of ICANN responsible for overseeing and managing IP address allocation, domain name management, and protocol identifiers for ICANN

Front 11

The Electronic Industries Alliance

EIA

Back 11

previously known as the Electronics Industries Association, is an international standards and trade organization for electronics organizations.

Front 12

The Telecommunications Industry Association

TIA

Back 12

is responsible for developing communication standards in a variety of areas including radio equipment, cellular towers, Voice over IP (VoIP) devices, satellite communications, and more.

Front 13

The International Telecommunications Union-Telecommunication Standardization Sector

ITU-T

Back 13

is one of the largest and oldest communication standard organizations. The ITU-T defines standards for video compression, Internet Protocol Television (IPTV), and broadband communications, such as a digital subscriber line (DSL)

Front 14

What layers of the OSI model does the Application layer of the TCP/IP model relate to?

Back 14

Application, Presentation, Session

Front 15

What layer of the OSI model does the Transport layer of the TCP/IP model relate to?

Back 15

Transport

Front 16

What layers of the OSI model does the Network Access layer of the TCP/IP model relate to?

Back 16

Data Link, Physical

Front 17

application layer 7 of the OSI model

Back 17

The application layer provides the means for end-to-end connectivity between individuals in the human network using data networks.

Front 18

presentation layer 6 of the OSI model

Back 18

The presentation layer provides for common representation of the data transferred between application layer services.

Front 19

Session layer 5 of the OSI model

Back 19

The session layer provides services to the presentation layer to organize its dialogue and to manage data exchange.

Front 20

transport layer 4 of the OSI model

Back 20

The transport layer defines services to segment, transfer, and reassemble the data for individual communications between the end devices.

Front 21

network layer 3 of the OSI model

Back 21

The network layer provides services to exchange the individual pieces of data over the network between identified end devices.

Front 22

data link layer 2 of the OSI model

Back 22

The data link layer protocols describe methods for exchanging data frames between devices over a common media.

Front 23

physical layer 1 of the OSI model

Back 23

The physical layer protocols describe the mechanical, electrical, functional, and procedural means to activate, maintain, and de-activate physical-connections for bit transmission to and from a network device.

Front 24

application layer of the TCP/IP model

Back 24

Represents data to the user, plus encoding and dialog control.

Front 25

transport layer of the TCP/IP model

Back 25

supports communication between diverse devices across diverse networks.

Front 26

internet layer of the TCP/IP model

Back 26

determines the best path through the network.

Front 27

network access layer of the TCP/IP model

Back 27

controls the hardware devices and media that make up the network.

Front 28

Multiplexing

Back 28

interleaving the pieces as they traverse the media.

multiple communications are interleaved, giving each user a part of the bandwidth.

Front 29

Segmentation

Back 29

breaking communication into pieces.

Front 30

data

Back 30

The general term for the PDU used at the application layer

Front 31

segment

Back 31

Transport layer PDU

Front 32

packet

Back 32

Internet layer PDU

Front 33

frame

Back 33

Network access layer PDU

Front 34

bits

Back 34

A PDU used when physically transmitting data over the medium

Front 35

What is the order of data encapsulation of the PDUs from top to bottom?

Back 35

Data, Segments, Packets, Frames, Bits.

Front 36

An IP packet contains two IP addresses

Back 36

Source IP address - The IP address of the sending device.
Destination IP address - The IP address of the receiving device. The destination IP address is used by routers to forward a packet to its destination.

Front 37

Source data link address

Back 37

The physical address of the device that is sending the packet. Initially this is the NIC that is the source of the IP packet.

Front 38

Destination data link address

Back 38

The physical address of the network interface of either the next hop router or the network interface of the destination device.

Front 39

What is an advantage of using standards to develop and implement protocols

Back 39

What is an advantage of using standards to develop and implement protocols.

Front 40

What layer of the TCP/IP model does DNS operate on?

Back 40

application layer

Front 41

What layer of the TCP/IP model does UDP operate on?

Back 41

transport layer

Front 42

What layer of the TCP/IP model does ICMP operate on?

Back 42

internet layer

Front 43

What layer of the TCP/IP model does WLAN operate on?

Back 43

network access layer

Front 44

Which two message timing mechanisms are used in data communications?

Back 44

response timeout

flow control

Front 45

Which standards organization developed the 802.3 (Ethernet) standard?

Back 45

IEEE

Front 46

What organization developed the OSI reference model that is used in networking?

Back 46

ISO

Front 47

Which organization develops the 802 family of standards for wired and wireless LANs and MANs?

Back 47

IEEE

Front 48

What three functions are defined by network protocols to allow communication between known source and destination IP addresses?

Back 48

data encoding

message size

delivery options

Front 49

What is the purpose of protocols in data communications?

Back 49

providing the rules required for a specific type of communication to occur

Front 50

Which message delivery option is used when all devices need to receive the same message simultaneously?

Back 50

broadcast

Front 51

What is the purpose of network protocols?

Back 51

They define how messages are exchanged between the source and the destination.

Front 52

Which two components are added to the PDU at the network access layer?

Back 52

trailer

frame header

Front 53

What type of delivery uses data link layer addresses?

Back 53

local delivery

Front 54

Which logical address is used for delivery of data to a remote network?

Back 54

destination IP address

Front 55

Which address provides a unique host address for data communications at the internet layer?

Back 55

logical address

Front 56

A computer in a given network is communicating with a specific group of computers. What type of communication is this?

Back 56

multicast

Front 57

Which address does a NIC use when deciding whether to accept a frame?

Back 57

destination MAC address

Front 58

Which PDU format is used when bits are received from the network medium by the NIC of a host?

Back 58

frame

Front 59

At which layer of the OSI model would a logical address be encapsulated?

Back 59

network layer

Front 60

What is a benefit of using a layered model for network communications?

Back 60

fostering competition among device and software vendors by enforcing the compatibility of their products.

Front 61

What is an advantage of network devices using open standard protocols?

Back 61

A client host and a server running different operating systems can successfully exchange data.

Front 62

Which protocol is responsible for controlling the size and rate of the HTTP messages exchanged between server and client?

Back 62

TCP

Front 63

What is the general term that is used to describe a piece of data at any layer of a networking model?

Back 63

protocol data unit PDU

Front 64

What are proprietary protocols?

Back 64

protocols developed by organizations who have control over their definition and operation

Front 65

If the default gateway is configured incorrectly on the host, what is the impact on communications?

Back 65

The host can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks.

Front 66

What statement describes the function of the Address Resolution Protocol?

Back 66

ARP is used to discover the MAC address of any host on the local network.

Front 67

A web client is sending a request for a webpage to a web server. From the perspective of the client, what is the correct order of the protocol stack that is used to prepare the request for transmission?

Back 67

HTTP, TCP, IP, Ethernet

Front 68

What is a function of Layer 4 of the OSI model?

Back 68

to describe the ordered and reliable delivery of data between source and destination

Front 69

What method can be used by two computers to ensure that packets are not dropped because too much data is being sent too quickly?

Back 69

flow control

Front 70

What accurately describes a TCP/IP encapsulation process when a PC is sending data to the network?

Back 70

Segments are sent from the transport layer to the internet layer.

Front 71

A user sends an HTTP request to a web server on a remote network. During encapsulation for this request, what information is added to the address field of a frame to indicate the destination?

Back 71

he MAC address of the default gateway

Front 72

T/F : The TCP/IP transport layer and OSI Layer 4 provide similar services and functions.​

Back 72

True

Front 73

A user is viewing an HTML document located on a web server. What protocol segments the messages and manages the segments in the individual conversation between the web server and the web client?

Back 73

TCP

Front 74

Which IEEE standard enables a wireless NIC to connect to a wireless AP that is made by a different manufacturer?

Back 74

802.11