exam

How is an email link created in HTML?

<a href= "mailto:[email protected]">

ISDN technology is one of the main technologies used to provide high-speed data communication service over a local loop.

False Digital Subscriber Line (DSL) TechnologiesDSL is one of the main the technology used to provide high-speed data communication services over a local loop.

Convert binary 1011 0010 0111 to hexadecimal

B27

Select thee of the functions of a network interface card (NIC).

CRC computation frame recognition address recognition

Which of the following is not a characteristics of client software?

Client software is starts automatically when a system boots

A form of packet routing that sends a complete list of destinations and the current cost of reaching each is called

Distance Vector Routing.

Name the two conceptual parts of each frame.

Header Payload

What three general properties define a circuit switched paradigm?

Performance equivalent to an isolated physical path Separate steps for circuit creation, use, and termination Point-to-Point communication

The purpose of a Distributed Spanning Tree(DST) to

Prevent broadcast messages from flowing in an endless loop

The HTTP request type ______ is used to request status information only.

HEAD

TCP/IP is the most important internetworking protocol suite and has been used on the Internet for decades.

True

The purpose of fiber modem extensions is to accept packets over the Ethernet interface and send over optical fiber,and accept packets off the optical fiber and send them over the Ethernet interface

True

Wireless technologies can be classified broadly according to network types, such as Local Area Networks (LAN), Metropolitan Ara Networks (MAN), Wide Area Networks (WAN), and Personal Area Networks (PAN) .

True

Which of the following is not true concerning the individual Media Access Control address assigned to each piece of Internet interface hardware?

assigned by IEEE

Application-layer protocols specify two aspects of interaction:

representation and transfer.

Convert the decimal 254 to binary

1111 1110

Convert binary 1001 1100 to decimal

156

Local area networks spans a major city or metropolitan.

False

The HTTP request type ______ is used to request a document.

GET

Electronic mail access protocols standards include ____________ and _____________ .

IMAP MIME

A Network Interface Card (NIC) is independent from the rest of the computer and a user can choose to replace without making other changes.

True

Spread spectrum transmission use multiple frequencies to send data.

True

The Ethernet frame format has remained unchanged since the first standard, however, the cables and the wiring scheme have changed dramatically.

True

The most widely used form of light energy medium is fiber optics.

True

The concept of a ___________ is allow a switch to be configured to emulate multiple, independent switches.

VLAN switch

Spread spectrum transmission can be used to achieve one of the following two goals:

-make transmissions more immune to noise -increase overall performance.

Convert 0x1FC7 to binary

0001 1111 1100 0111

The Internet communication stream paradigm can run over TCP or UDP.

False

What does HTML stand for?

HyperText Markup Language

Communication using frequencies set aside for environments where electromagnetic interference may be present uses _______ wireless technologies.

ISM

Select the four types of personal area network(PAN) technologies

ISM wireless Bluetooth Infrared ZigBee

What is the purpose of the <!--> tag?

Insert a comment

Match the five layers of TCP/IP model

Layer 1 - Physical Layer 2 - Network Interface Layer 3 - Internet Layer 4 - Transport Layer 5 - Application

Describe the client-server model of interaction.

The server starts first and awaits contact by the client.

How are colors represented in HTML?

Colors are represented as HEX values in two-digit pairs

The stream transport model in the Internet refers to

a sequence of bytes flowing from one application program to another.

A repeater is an analog device used to broadcast messages across a Wide Area Network (WAN).

False

Packets always will arrive at their destination in the same order they were transmitted.

False

Second generation of Ethernet wiring used a thinner, coaxial cable that was more flexible than Thicknet and it used an Attachment Unit Interface(AUI) to interconnect computers.

False

Convert the hexadecimal 246 to binary

0010 0100 0110

Convert 0x081A to binary

1000 0001 1010

Convert 0x81A to binary

1000 0001 1010

Convert the hexadecimal CAB to binary

1100 1010 1011

Convert 0x0100 to decimal

256

Which is the correct form for creating a hyperlink in HTML

<a href= "http://www.uc.edu" > University of Cincinnati</a>

Which is the correct tag to make text bold?

<b>

How is a single blank line inserted in HTML?

<br />

Which is the correct HTML tag for inserting a line break?

<br>

Select the correct tag for the largest header in HTML.

<h1>

Which is the correct HTML tag for making text italic?

<i>

Which are correct tags for sizing an image?

<img src= "Imagename.format" alt= "ImageTitle" width= "360" height= "280" />

Which is the correct HTML for inserting an image?

<img src= "imagename.format" alt= "ImageName"/>

What is the correct HTML tag for creating a checkbox?

<input type= "checkbox"/>

How are numbered lists created in HTML?

<ol>

Which is the correct HTML used to right-align the contents of a cell in a table?

<td align= "right" >

How are bulleted lists created in HTML?

<ul>

List four details an application protocol must specify.

Actions to be taken when an error occurs. Whether the server or the client initiates the interaction How the two sides know when to end the communication .Syntax and semantics of the message that can be exchanged.

Convert 1011 0111 1101 0110 to hexadecimal.

B7D6

Convert binary 1100 1001 0110 0001 to hexadecimal

C961

A repeater is an analog device used to broadcast messages across a Wide Area Network(WAN)

False

A repeater is an analogue device used to broadcast messages across a Wide Area Network(WAN)

False

A router can be used to connect two Wide Area Networks (WAN) provided that both networks use the same technology and protocols.

False

A router can be used to connect two Wide Area Networks(WAN) provided that both networks use the same technology and protocols

False

Communication between two parties on a circuit switched network is affected by communication between other parties sharing a common medium.

False

Data transmissions cannot be converted from parallel to serial.

False

Default routing is optional;a default entry is present only when there is one destination available for packet to transverse the network

False

Each service available in the Internet is assigned a unique 16-bit identifier know as an IP Address.

False

Infrared communication technologies are well suited for outdoor spaces.

False

Low Earth Orbit Satellites are defined as orbiting up to 2000 Kilometers, having a short propagation delay, and easy to track.

False

Packet switching is typically associated with telephone technology.

False

We use the term intranet to refer to an network that is owned by a private organization and designed for global use.

False Intranets and InternetsWe use the term intranet to refer to an internet that is owned by a private organization and designed for use only by the organization's employees.

What is the term used to describe an end system that connects to Internet and runs applications?

Host

Define the three IEEE addresses that correspond to the three types of packet delivery

Identifies a subset of the computers on a given network,and specifies that each computer in the subset should receive a copy of the packet - multicast uniquely identifies a single computer,and specifies that only the identified computer should receive a copy of the packet - unicast. corresponds to all computers, and specifies that each computer on the network should receive a copy of the packet. - broadcast.

_________ is used for line-of-sigh communication between a small device,often a hand-held controller,and a nearby system such as a compute or entertainment center.

Infrared

What is the purpose of a bridge?

It connects two LAN segments.

What are the two main reasons most communication systems use serial mode transmission?

Less electro-magnetic interference Fewer physical wires

Which type of routing protocol requires the packet switches to send messages periodically across the network carrying the status of a link between the two packet switches?

Link-State Routing

The HTTP request type ______ is used to send data to a server where it replaces a specific item.

PUT

Select the two purposes of version information in HTTP?

Permits protocols to change and still preserve backwards compatibility. Allows servers to choose highest version that is understood by both sender and receiver.

How can HTML source code be viewed in an IE browser?

Right-click page and select "View Source"

What does the do the <div> and <div /> tags define?

Sections or divisions

Match the network classification with the description

Spans a large metropolitan area or city - MAN Spans a region near an individual - PAN spans multiple cities or countries - WAN spans a floor or a building - LAN

What are the two basic Internet communication paradigms (models)?

Stream and Message

Which organization is responsible for the Web standards?

The World Wide Web Consortium

Match the transmission system classification with its timing category

The transmission timing can occur at any time with an arbitrary delay between the transmission of two data items -asynchronous The transmission timing occurs at regular intervals with a fixed gap between the transmission of two data items. -isosychronous The transmission timing occurs continuously with no gap between the transmission of two data items. -synchronous

A Media Access Control address is divided into a 3-byte organizational unique ID and a 3-byte block that identifies a particular network interface card (NIC).

True

A Virtual Local Area Network (VLAN) switch allows a manager to configure a switch to emulate multiple, independent switches.

True

A browser can reduce download times significantly by saving a copy of each image in a cache on the user's disk and using the cached copy.

True

A layer 2 switch is an electronic device that resembles a hub but simulates a bridged network that has only one computer per LAN segment.

True

A maximum length specification of the local area network is a fundamental part of LAN technology because hardware is engineered to emit a fixed amount of energy

True

A maximum length specification of the local area network is a fundamental part of LAN technology because hardware is engineered to emit a fixed amount of energy.

True

A media Access Control is divided into a 3--byte block that byte organizational unique ID and a 3-byte block that identifies a particular network interface card(NIC)

True

A typical residential subscriber receives much more information than the subscriber sends. Internet access technologies are designed to transfer more data in one direction than the other.

True

A virtual Local Area Network(VLAN) switch allows the switch to be reconfigured to emulate multiple, independent switches.

True

Bluetooth is a short-distance wireless connection technology

True

Circuit switching refers to a communications mechanism that establishes a path between sender and receiver with guaranteed isolation from paths used by other pairs of senders and receivers.

True

In order to make universal service possible across diverse networks, protocol software is required on both the computers and the routers used on the Internet.

True

In order to make universal service possible across diverse networks,protocol software is requied on both the computers and the routers used on the Internet

True

In point-to-point communications, laser beams have the advantage of being suitable for use outdoors and can span greater distances than infrared.

True

Internally, computers and communication hardware uses parallel transmission.

True

Local Area Network(LAN) technologies were invented after the invention of Wide Area Network(WAN) technologies

True

Multimedia applications use the Internet communication message paradigm.

True

One way to reduce interference from noise is to place metal between a source of noise and the communicating medium.

True

Random electromagnetic radiation generated by devices such as electric motors can interfere with communication that uses radio transmission or electrical energy sent over wires.

True

Simple Mail Transfer Protocol (SMTP) can only transfer text messages. Correct!

True

Spread spectrum techniques can help wireless LANs function in noisy environments.

True

Synchronous Optical Network (SONET) defines a broad set of standards used for digital transmission that specifies details such as how data is framed and how lower-capacity circuits are multiplexed into a higher-capacity circuit.

True

Synchronous Transport Signal (STS) are a series of standards for digital high-capacity circuits.

True

TCP/IP is the most important internetworking protocol suite and has been used on the Internet for decades

True

The Ethernet frame format has remained unchanged since the first standard,however, the cables and the wiring scheme have changed dramatically.

True

The designation of the various types of Ethernet cabling,such as 100BaseT,defines both the type of cable and the data rate

True

The original version of Ethernet was informally called thick wire Ethernet or Thicknet because the communication medium consisted of heavy coaxial cable.

True

The original version of Ethernet wiring was informally called thick wire Ethernet or Thicknet because the communication medium consisted of heavy coaxial cable.

True

An ethernet cable with a designation of 100BaseT used which type of cable?

Twisted Pair

A Uniform Resource Locater (UR)L contains information

URL contains the information a browser needs to retrieve a page.

For a WAN to operate correctly, each switch must have a forwarding table, and must forward packets. Furthermore, values in the forwarding table must guarantee _______________ and ________________ .

Universal Communication Optimal Routes

Bridges do not blindly forward a copy of ecah frame from one LAN to another.Instead,bridges

Use the destination MAC address and do not forward the frame to a LAN segment unless necessary

The concept of a _______________ is allow a switch to be configured to emulate multiple, independent switches

VLAN switch

_________ is used for communication over distances about as large as a residence, which allows electrical appliances to connect to the Smart Grid.

ZigBee

The three building blocks of a wireless LAN are the _______,_______ AND _____

access point switch or router hosts

The purpose of a repeater is to

amplify a signal

A mechanism used to connect two LAN segments and forward frames from one segment to another is called a _______________ .

bridge

A mechanism used to connect two LAN segments and forward frames from one segment to another is called a

bridge.

In a message transport model in the Internet, each message delivered will never be

combined with multiple messages.

Wide Area Networks(WANs) use a hierarchical addressing scheme that is divided into two parts __________ and _________

computer at the site site

Which Internet stream service operates similar to a telephone call?

connection-oriented

Increasing the length of the transmission medium is necessary in order to send signals across greater distances on a LAN.

false Distance Limitation and LAN DesignA maximum length specification is a fundamental part of LAN technology. LAN hardware will not work correctly over wires that exceed the bound.

Two broad classes are used to distinguished between physical media (such as copper wiring or optical fibers) that provide a specific path and radio transmissions that travel in all directions through space. These terms are _______________________ and ______________________ . AM , FM

guided, unguided

Optical fiber has several properties that make it more desirable than copper wiring. These advantages include all except

lower overall cost.

The IEEE 802.1Q standard allows

multiple VLAN switches to interconnected and to operate like a giant VLAN switch.

Random electromagnetic radiation is called ______________ .

noise

The term local subscriber line or local loop describes the

physical connection between a telephone company and a subscriber's location.

The purpose of a Distributed Spanning Tree (DST) is to

prevent broadcast messages from flowing in an endless loop.

Which of the following is a media that does not use light energy to carry information?

radio waves

Which tags are tags used with tables in HTML?

table> <tr><td>

Bridges do not blindly forward a copy of each frame from one LAN to another. Instead, bridges

use the destination MAC address and do not forward the frame to a LAN segment unless necessary.

Wide Area Networks (WANs) use a hierarchical addressing scheme that is divided into two parts: ______________ and _______________ .

site computer at the site

A virtual Local Area Network(VLAN) switch allows a manager to configure a switch to emulate multiple independent switches.

True

The goal of wide area network is to allow as many computers as possible to send packets simultaneously

True

A mechanism used to connect two LAN segments and Forward frames from one segment to another is called a

bridge

Which of the following is not true concerning the individual Media Access Control address assigned to each piece of Internet interface hardware?

identifies equipment manufacturer

Circuit Switching provides

the illusion of an isolated physical path between a sender and receiver.