ISTM 610 Exam

The _________ layer performs error checking which is redundant to some extent with the function of the _________ layer.

transport, data link

A(n) _________-tiered architecture uses only two sets of computers: one set of clients and one set of servers.

two

Each server on a network that needs to act as a web server needs an application layer software package called a (n) ______________.

web server

Which of the following is not a data link layer standard?

HTTP

Taken together, the physical and data link layers are called the ____________________.

Hardware layer

Which of the following is a term used to group together the physical and data link layers?

Hardware layers

The acronym, HTML, refers to:

Hypertext Markup Language

The protocol that makes it possible for a Macintosh web browser to be able to retrieve a Web page from a Microsoft Web server is called the _____________________.

Hypertext Transfer Protocol

Which standards body is responsible for the development of local area network (LAN) standards?

IEEE

The Internet standards organization that will allow anyone to join is __________________.

IETF

The network layer of the Internet model uses the _____________ protocol to route messages though the network.

IP

The _______ is a connection of computers and networks built into common, everyday devices.

Internet of Things

Which of the following is true about ISO:

It makes technical recommendations about data communications interfaces, Its name stands for International Organization for Standardization, It is based in Geneva, Switzerland, It is one of the most important standards-making bodies

Which of the following is not an advantage of instant messaging?

It usually takes days for an IM message to be delivered to the recipient.

Which of the following is not true about ITU-T:

Its membership is limited to U.S. telephone companies

In a host-based system with a mainframe, upgrades to the host are _____________.

Lumpy

The software that runs on the mail server is referred to as the ____________

Mail transfer agent

Which of the following is not an example of a mail user agent software package?

Microsoft Word

Marc Andreessen led a team that developed the first graphical Web browser, which was called:

Mosaic

The acronym, MIME, refers to:

Multipurpose Internet Mail Extension

In a ___________ architecture, computers are both client and server, thus sharing the work.

Peer-to-peer

The ____________ layer of the OSI model is responsible for data format translation.

Presentation

One of the most frequently used Telnet applications is

PuTTY

___________ is an orderly close to a dialogue between end users.

Session termination

The most commonly used e-mail standard is:

Simple Mail Transfer Protocol

__________ ensure that hardware and software produced by different vendors work together.

Standards

Which of the following is not an application layer standard?

T1

Which of the following is not true about Telnet?

Telnet poses no security threat.

Which of the following is not true about de jure standards?

They are always developed before de facto standards.

Which of the following is not true about de facto standards?

They never evolve into de jure standards.

The idea for a special hypertext network, called the World Wide Web, was conceived of by:

Tim Berners-Lee at the European Laboratory for Particle Physics (CERN) in 1989

The fourth layer of the OSI model is called the __________ layer.

Transport

Which layer of the OSI model is responsible for ensuring flow control so that the destination station does not receive more packets that it can process at any given time?

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?

Transport

To get a page from the Web, a user must type in a URL, which stands for:

Uniform Resource Locator

The standards H.320, H.323, and MPEG-2 are commonly used with

Videoconferencing

To interact with the World Wide Web, a client computer needs an application layer software package called a:

Web browser

_________ is a special type of one directional; videoconferencing in which content is sent from the server to the user.

Webcasting

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 backbone network is:

a high speed central network that connects other networks in a distance spanning up to several miles.

With a client-based network, one fundamental problem is that:

all data on the server must travel to the client for processing

A network administrator has received several reports from users of the network that the intranet website on one of company servers is not accessible, but the same users are still able to retrieve their email being stored on the same server. What layer of the Internet model does this problem appear to reside at?

application

The ________________ clouds realize the benefits from cloud infrastructure (such as speed of deployment) with the added level of privacy and security that private clouds offer.

community

What technique is used by most videoconferencing applications to reduce the amount of data being transmitted?

compression

Which of the following is not a property of a WAN:

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

With the two-tier client-server architecture, the server is responsible for the ________ logic.

data access

An application program function is __________, or the processing required to access data.

data access logic

_________ is an application program function that deals with storing and retrieving data.

data storage

Another term for a mail user agent is:

e-mail client

The primary reason for networking standards is to:

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 open to only those inside the organization.

intranet

An N-tiered architecture:

is generally more "scalable" than a three-tiered architecture

The American National Standards Institute:

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

In a two-tier client-server architecture, a client computer needs to use an application layer software package called a ________________ to send e-mail:

mail user agent

A ________ is a very large general-purpose computer that is capable of performing very many functions as if these are done simultaneously, and storing extremely large amounts of data.

mainframe

A MOOC is an example of a(n)

massively online technology

In a client-server network, _________ gets software from different vendors to work together.

middleware

One disadvantage of the ____________ architecture is that places a greater load on the network.

n-tier

The _________ layer is responsible for routing of messages from the sender to the final destination.

network layer

Data communications and networking can be considered as a global area of study because:

new technologies and applications emerge from a variety of countries and spread around the world and the technologies enable global communication

Networks that are designed to connect similar computers that share data and software with each other are called:

peer-to-peer networks

IMAP (Internet Message Access Protocol):

permits an e-mail message to remain stored on the mail server even after they have been read by a client computer

A junior network administrator has used the wrong cable type to connect his/her computer to the administrative port on a router and cannot establish a terminal session with the device. What layer of the Internet model does this problem appear to reside at?

physical

Which of the following correctly represents order of the seven layers of the OSI model from layer 1 to layer 7?

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

A "thick client" architecture approach:

places all or almost all of the application logic on the client

A "thin client" architecture approach:

places all or almost all of the application logic on the server

With the two-tier client-server architecture, the client is responsible for the ________ logic.

presentation

In the three tier architecture, the software on the client computer is responsible for the ____________.

presentation logic

________ is the presentation of information to the user and the acceptance of the user's commands.

presentation logic

The ________________ cloud deployment model provides the highest levels of control, privacy and security.

private

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.

protocol

Which is not a function of the physical layer:

providing error-free transmission of data.

There are optional and required parts of an HTTP request. They are:

request line, request header, request body

There are required and optional parts of an HTTP response. They are:

response status, response header, response body

With the "thin client" architecture, when an application changes, only the _________ with the application logic needs to be updated.

server

A ________ is a group of computers linked together so that they appear to act as one computer.

server farm

In the Internet model, the application layer corresponds to the ________ layer(s) of the OSI model.

session, presentation and application

The three stages of the de jure standardization process are ______________________.

specification, identification of choices and acceptance.

Which of the following is not a function of the data link layer?

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

How are the application architecture functions split up in a client-server network?

the presentation logic is on the client, while the data storage and data access logic are on the server

A response status code of 404 means:

the requested page was not found.

One underlying problem with a host-based network is that:

the server can get overloaded since it must process all messages

BYOD stands for

Bring Your Own Device

A _____________ is the input-output hardware device at the end user's end of a communication circuit in a client-server network.

Client

When a user accesses an application via a web browser on their mobile device, this is referred to as

A browser-based approach

When a developer creates an application for each type of device that might be used, this is referred to as

A native app

____________ is not an important middleware standard.

Asynchronous Transfer Mode (ATM)

Which of the following is not an important future trend in communication and networking?

Development of online batch systems

Which of the following would be a standard or protocol used at the Data Link layer of the Internet or OSI model?

Ethernet

With respect to costs for a client-server network, which of the following is true?

Experts believe that client server architectures can be complex, but that developing application software for host based architectures is usually cheaper.

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.

Extranet

A(n) ___________ is similar to an intranet in that it uses Internet technologies, but is developed for users outside the organization.

Extranet

In which layer of the Internet model would the HTTP protocol be used?

application

Which of the following is not a general function by any application program?

application access storage

A(n) __________ is the way in which the functions of the application layer software are spread among the clients and servers in the network.

application architecture

______________, or the algorithms or business logic programmed into the application, can be simple or complex depending on the application.

application logic

Which of the following is a function of the transport layer?

breaking long messages into several smaller messages

Which of the following is not true about a server?

can only perform one function on a network.

Client-server architectures:

can use middleware to provide a standard way of communicating between software from more than one vendor