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74 Cards in this Set

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What are the 4 layers of the TCP/IP stack?
Application Layer
Transport Layer
Internet Layer
Network Access Layer
What layer of the TCP/IP stack do the following protocols function on?

DNS, BOOTP, DHCP, SMTP, POP, IMAP, FTP, TFTP, HTTP
Application layer
What layer of the TCP/IP stack do the following protocols function on?

UDP, TCP
Transport Layer
What layer of the TCP/IP stack do the following protocols function on?

IP, NAT, ICMP, OSPF, EIGRP
Internet layer
What layer of the TCP/IP stack do the following protocols function on?

ARP, PPP, Ethernet, Interface Drivers
Network Access Layer
The Internet Society (ISOC)
is responsible for promoting open development, evolution, and Internet use throughout the world.
The Institute of Electrical and Electronics Engineers

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

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

Responsible for the OSI model
The Internet Corporation for Assigned Names and Numbers

ICANN
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.
The Internet Assigned Numbers Authority

IANA
is a department of ICANN responsible for overseeing and managing IP address allocation, domain name management, and protocol identifiers for ICANN
The Electronic Industries Alliance

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

TIA
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.
The International Telecommunications Union-Telecommunication Standardization Sector

ITU-T
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)
What layers of the OSI model does the Application layer of the TCP/IP model relate to?
Application, Presentation, Session
What layer of the OSI model does the Transport layer of the TCP/IP model relate to?
Transport
What layers of the OSI model does the Network Access layer of the TCP/IP model relate to?
Data Link, Physical
application layer 7 of the OSI model
The application layer provides the means for end-to-end connectivity between individuals in the human network using data networks.
presentation layer 6 of the OSI model
The presentation layer provides for common representation of the data transferred between application layer services.
Session layer 5 of the OSI model
The session layer provides services to the presentation layer to organize its dialogue and to manage data exchange.
transport layer 4 of the OSI model
The transport layer defines services to segment, transfer, and reassemble the data for individual communications between the end devices.
network layer 3 of the OSI model
The network layer provides services to exchange the individual pieces of data over the network between identified end devices.
data link layer 2 of the OSI model
The data link layer protocols describe methods for exchanging data frames between devices over a common media.
physical layer 1 of the OSI model
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.
application layer of the TCP/IP model
Represents data to the user, plus encoding and dialog control.
transport layer of the TCP/IP model
supports communication between diverse devices across diverse networks.
internet layer of the TCP/IP model
determines the best path through the network.
network access layer of the TCP/IP model
controls the hardware devices and media that make up the network.
Multiplexing
interleaving the pieces as they traverse the media.

multiple communications are interleaved, giving each user a part of the bandwidth.
Segmentation
breaking communication into pieces.
data
The general term for the PDU used at the application layer
segment
Transport layer PDU
packet
Internet layer PDU
frame
Network access layer PDU
bits
A PDU used when physically transmitting data over the medium
What is the order of data encapsulation of the PDUs from top to bottom?
Data, Segments, Packets, Frames, Bits.
An IP packet contains two IP addresses
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.
Source data link address
The physical address of the device that is sending the packet. Initially this is the NIC that is the source of the IP packet.
Destination data link address
The physical address of the network interface of either the next hop router or the network interface of the destination device.
What is an advantage of using standards to develop and implement protocols
What is an advantage of using standards to develop and implement protocols.
What layer of the TCP/IP model does DNS operate on?
application layer
What layer of the TCP/IP model does UDP operate on?
transport layer
What layer of the TCP/IP model does ICMP operate on?
internet layer
What layer of the TCP/IP model does WLAN operate on?
network access layer
Which two message timing mechanisms are used in data communications?
response timeout

flow control
Which standards organization developed the 802.3 (Ethernet) standard?
IEEE
What organization developed the OSI reference model that is used in networking?
ISO
Which organization develops the 802 family of standards for wired and wireless LANs and MANs?
IEEE
What three functions are defined by network protocols to allow communication between known source and destination IP addresses?
data encoding

message size

delivery options
What is the purpose of protocols in data communications?
providing the rules required for a specific type of communication to occur
Which message delivery option is used when all devices need to receive the same message simultaneously?
broadcast
What is the purpose of network protocols?
They define how messages are exchanged between the source and the destination.
Which two components are added to the PDU at the network access layer?
trailer

frame header
What type of delivery uses data link layer addresses?
local delivery
Which logical address is used for delivery of data to a remote network?
destination IP address
Which address provides a unique host address for data communications at the internet layer?
logical address
A computer in a given network is communicating with a specific group of computers. What type of communication is this?
multicast
Which address does a NIC use when deciding whether to accept a frame?
destination MAC address
Which PDU format is used when bits are received from the network medium by the NIC of a host?
frame
At which layer of the OSI model would a logical address be encapsulated?
network layer
What is a benefit of using a layered model for network communications?
fostering competition among device and software vendors by enforcing the compatibility of their products.
What is an advantage of network devices using open standard protocols?
A client host and a server running different operating systems can successfully exchange data.
Which protocol is responsible for controlling the size and rate of the HTTP messages exchanged between server and client?
TCP
What is the general term that is used to describe a piece of data at any layer of a networking model?
protocol data unit PDU
What are proprietary protocols?
protocols developed by organizations who have control over their definition and operation
If the default gateway is configured incorrectly on the host, what is the impact on communications?
The host can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks.
What statement describes the function of the Address Resolution Protocol?
ARP is used to discover the MAC address of any host on the local network.
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?
HTTP, TCP, IP, Ethernet
What is a function of Layer 4 of the OSI model?
to describe the ordered and reliable delivery of data between source and destination
What method can be used by two computers to ensure that packets are not dropped because too much data is being sent too quickly?
flow control
What accurately describes a TCP/IP encapsulation process when a PC is sending data to the network?
Segments are sent from the transport layer to the internet layer.
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?
he MAC address of the default gateway
T/F : The TCP/IP transport layer and OSI Layer 4 provide similar services and functions.​
True
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?
TCP
Which IEEE standard enables a wireless NIC to connect to a wireless AP that is made by a different manufacturer?
802.11