Practice Quiz History and Layers

At the transport layer in the Internet model, TCP is responsible for breaking large files received from the application layer into smaller messages and opening a connection to a server for transferringthem. True False

True

Data communication standards enable each layer in the sending computer to communicate with its corresponding layer in the receiving computer. True False

True

Due to advances in high speed communication networks, the information lag, or the time it takes for information to be disseminated around the world, has been significantly shortened. True False

True

It is not uncommon for companies to end up spending more money on network management and security tasks than they do on the actual computer equipment itself. True False

True

The network layer performs the same functions in both the OSI and Internet models and is responsible for routing messages from the source computer to the destination computer. True False

True

The application layer is the seventh layer of the Internet model and specifies the type of connection and the electrical signals that pass through it. True False

False

Taken together, the physical and data link layers are called the ____________________. Internet layer Internetwork layer Application layer Hardware layer

Hardware layer

Which of the following is a term used to group together the physical and data link layers? Internetwork layers Software layers Application layers Middleware layers Hardware layers

Hardware layers

Which standards body is responsible for the development of local area network (LAN) standards? ITU-T ISO ANSI IEEE IETF

IEEE

The network layer of the Internet model uses the _____________ protocol to route messages though the network. FTP TCP HTTP IP SMTP

IP

Which of the following is not true about ITU-T: Its membership is limited to U.S. telephone companies It is based in Geneva, Switzerland It is the technical standards-setting organization of the United Nations International Telecommunications Union It is the International Telecommunications Union â€" Telecommunications Group Its membership is comprised of representatives from over 200 member countries

Its membership is limited to U.S. telephone companies

A(n) _____________ is a set of rules that determine what a layer would do and provides a clearly defined set of messages that software at the layer needs to understand. regulation policy protocol specification agreement

protocol

In the Internet model, the application layer corresponds to the ________ layer(s) of the OSI model. application and presentation application layer network, transport and presentation session, presentation and application data link and network

session, presentation and application

Which of the following is not an application layer standard? HTML HTTP IMAP T1 POP

T1

Ethernet is an example of a network layer protocol. True False

False

Which of the following is true about ISO: It makes technical recommendations about data communications interfaces It is one of the most important standards-making bodies It is based in Geneva, Switzerland Its name stands for International Organization for Standardization All of the other answers

All of the other answers

Which of the following TCP/IP model layers does the OSI model Presentation layer map to? Internet Network Interface Application Transport

Application

Which of the following TCP/IP model layers combines four OSI model layers? Internet Layer Network Interface Layer Application Layer Transport Layer

Application Layer

BYOD stands for Build Your Own Device Build Your Own Database Bring Your Own Device Bring Your Own Database

Bring Your Own Device

In which of the following layers of the OSI model would MAC addressing be found? Application Transport Data Link Network

Data Link

A local area network (LAN) connects other LANs and backbone networks (BNs) located in different areas to each other and to wide area networks in a span from 3 to 30 miles. True False

False

An intranet is a LAN that uses Internet technologies and is publicly available to people outside of the organization. True False

False

A network engineer is dispatched to an employee office to troubleshoot an issue with the employee's laptop. The employee is unable to connect to local and remote resources. The network engineer flips the laptop's wireless switch on to resolve the issue. At which of the following layers of the OSI model was the issue resolved? Layer 1 Layer 4 Layer 7 Layer 3 Layer 2

Layer 1

A router operates at which of the following layers of the OSI model? Layer 2 Layer 4 Layer 5 Layer 3

Layer 3

The application layer in the TCP/IP model is comparable to which of the following layers in the OSI model? Layer 5 Layer 2 Layer 7 Layer 6

Layer 7

A multi-layer switch operates at which of the following OSI layers? Layers 5 and 6 Layers 1 and 5 Layers 2 and 3 Layers 4 and 5

Layers 2 and 3

The TCP/IP application layer contains which of the following OSI layers? Layers 5,6,7 Layers 1,5,6,7 Layers 4,7 Layer 7

Layers 5,6,7

At which of the following layers of the OSI model do packets exist? Session Transport Network Data Link

Network

Which of the following TCP/IP model layers does the OSI model Data Link layer map to? Application Internet Network Interface Transport

Network Interface

At which of the following layers of the OSI model does ASCII work? Transport Application Presentation Session

Presentation

__________ ensure that hardware and software produced by different vendors work together. Intranets Delimiters Standards ASPs RBOCs

Standards

Which of the following is not true about de jure standards? They can take several years to develop. They are always developed before de facto standards. They can be developed by a government body. They can be developed by an official industry body. One example exists for network layer software (IP).

They are always developed before de facto standards.

Which of the following is not true about de facto standards? They tend to emerge based upon the needs/response of the marketplace. They never evolve into de jure standards. They are generally supported by more than one vendor but de facto standards have no official standing. They are those standards that emerge in the marketplace. They tend not to be developed by an official industry or government body.

They never evolve into de jure standards.

Why are networks set up with multi-layer models? To make them easier to fix and update with technology changes To make them faster to make them simpler and less complex Because vendors could not agree with each other

To make them easier to fix and update with technology changes

Which of the following OSI model layers is used to order packets which may have arrived out of order? Network Session Presentation Transport

Transport

When a user accesses an application via a web browser on their mobile device, this is referred to as a browser-based approach a native app BYOD Internet Explorer

a browser-based approach

A local area network is: a group of personal computers or terminals located in the same general area and connected by a common cable (communication circuit) so they can exchange information such as a set of rooms, a single building, or a set of well-connected buildings. a large central network that connects other networks in a distance spanning exactly 5 miles. a network spanning a geographical area that usually encompasses a city or county area (3 to 30 miles). a network spanning exactly 10 miles with common carrier circuits. a network spanning a large geographical area (up to 1000s of miles).

a group of personal computers or terminals located in the same general area and connected by a common cable (communication circuit) so they can exchange information such as a set of rooms, a single building, or a set of well-connected buildings.

In which layer of the Internet model would the HTTP protocol be used? transport network physical application data link

application

In which layer of the Internet model would the HTTP standard be used? network transport data link physical application

application

Which of the following is not a property of a WAN: connects backbone networks and MANS. spans hundreds or thousands of miles provides data transmission speeds from 56Kbps to 10Gbps. connects a group of computers in a small geographic area such as room, floor, building or campus. uses leased lines from IXCs like ATT, MCI, and Sprint.

connects a group of computers in a small geographic area such as room, floor, building or campus.

The primary reason for networking standards is to: lock customers into buying network components from one vendor ensure that all network components of a particular network can be provided by only one vendor make it more difficult to develop hardware and software that link different networks simplify cost accounting for networks ensure that hardware and software produced by different vendors can work together

ensure that hardware and software produced by different vendors can work together

A(n) _________ is a LAN that uses the same technologies as the Internet but is provided to invited users outside the organization who access it over the Internet. MAN BN extranet intranet WAN

extranet

A(n) _________ is a LAN that uses the same technologies as the Internet but is open to only those inside the organization. WAN BN extranet MAN intranet

intranet

The American National Standards Institute: sets the standards that govern how much of the Internet will operate is an agency that develops federal information processing standards for the federal government makes technical recommendations about global telephone rates is a professional society in the U.S. whose standards committees focus on local area network standards is the coordinating organization for the United States’ national system of standards

is the coordinating organization for the United States’ national system of standards

Data is actually transmitted from one computer or terminal to another in the ________ layer. physical data link application terminal transport

physical

Which of the following correctly represents order of the seven layers of the OSI model from layer 1 to layer 7? physical, network, data link, session, transport, application, presentation physical, data link, network, transport, session, application, presentation data link, physical, network, transport, session, presentation, application data link, physical, network, session, transport, application, presentation physical, data link, network, transport, session, presentation, application

physical, data link, network, transport, session, presentation, application

Which of the following is not a function of the data link layer? controlling the physical layer by determining when to transmit formatting the message by indicating where messages start and end, and which part is the address detecting and correcting any errors that have occurred in the transmission of the message specifying the type of connection, and the electrical signals, radio waves, or light pulses that pass through it deciding when to transmit messages over the media

specifying the type of connection, and the electrical signals, radio waves, or light pulses that pass through it

The function of the file server is to : store HTML documents for an Internet or intranet web site. store data and software programs that can be used by client computers on the network. coordinate the communication of client and servers on the network. transfer e-mail messages to other servers on the network. manage all printing requests from clients on the network.

store data and software programs that can be used by client computers on the network.

The fourth layer of the OSI model is called the __________ layer. presentation session transport network data link

transport

Which layer of the OSI model is responsible for ensuring that all packets sent are received by the destination station by dealing with end-to-end issues? physical application presentation session transport

transport