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.