-
Telephone networks are fundamentally different from computer networks
T
-
Increasingly, voice, video, and data communications are all based on Internet technology
T
-
To create a computer network, you must have at least two computers.
T
-
An NOS must reside on a dedicated server computer in order to manage a network.
F
-
A hub is a networking device that connects network components and is used to filter and forward data to specified destinations on the network
F
-
In a client/server network, a network server provides every connected client with an address so it can be found by others on the network
T
-
Central large mainframe computing has largely replaced client/server computing.
F
-
Circuit switching makes much more efficient use of the communications capacity of a network than does packet switching.
F
-
Mobile search makes up approximately 10% of all Internet searches.
F
-
Two computers using TCP/IP can communicate even if they are based on different hardware and software platforms.
T
-
In blogging, a trackback is a list of entries in other blogs that refer to a post in the first blog.
T
-
Coaxial cable is similar to that used for cable television and consists of thickly insulated copper wire.
T
-
Fiber-optic cable is more expensive and harder to install than wire media.
T
-
The number of cycles per second that can be sent through any telecommunications medium is measured in kilobytes.
F
-
The Domain Name System (DNS) converts domain names to IP addresses.
T
-
VoIP technology delivers voice information in digital form using packet switching.
T
-
Web 3.0 is a collaborative effort to add a layer of meaning to the existing Web in order to reduce the amount of human involvement in searching for and processing Web information.
T
-
In a large company today, you will often find an infrastructure that includes hundreds of small LANs linked to each other as well as to corporate-wide networks.
T
-
TCP/IP was developed in the 1960s to enable university scientists to transmit data from computer to computer.
F
-
RFID technology is being gradually replaced by less costly technologies such as WSNs.
F
-
The device that acts as a connection point between computers and can filter and forward data to a specified destination is called a(n):
switch.
-
The Internet is based on which three key technologies?
Client/server computing, packet switching, and the development of communications standards for linking networks and computers
-
The method of slicing digital messages into parcels, transmitting them along different communication paths, and reassembling them at their destinations is called:
packet switching.
-
The telephone system is an example of a ________ network.
circuit-switched
-
Which of the following is not a characteristic of packet switching?
Packet switching requires point-to-point circuits.
-
In TCP/IP, IP is responsible for:
disassembling and reassembling of packets during transmission.
-
In a telecommunications network architecture, a protocol is:
a standard set of rules and procedures for control of communications in a network.
-
What are the four layers of the TCP/IP reference model?
Application, transport, Internet, and network interface
-
Which signal types are represented by a continuous waveform?
Analog
-
To use the analog telephone system for sending digital data, you must also use:
a modem.
-
Which type of network is used to connect digital devices within a half-mile or 500-meter radius?
LAN
-
Which type of network serves a small group of computers, allowing them to share resources and peripherals without using a dedicated server?
Peer-to-peer
-
Which type of network would be most appropriate for a business that comprised three employees and a manager located in the same office space, whose primary need is to share documents?
Peer-to-peer network
-
Which of the following is considered by many to be the defining Web 2.0 application?
Social networking
-
Which of the following enables multiple users to create and edit Web documents?
Wiki
-
The "Internet of Things" refers to:
a vision of a pervasive Web, in which common objects are connected to and controlled over the Internet.
-
A network that spans a city, and sometimes its major suburbs as well, is called a:
MAN.
-
A network that covers entire geographical regions is most commonly referred to as a(n):
wide area network.
-
Which of the following is a challenge posed by Wi-Fi networks?
Susceptibility to interference from nearby wireless systems
-
Bandwidth is the:
difference between the highest and lowest frequencies that can be accommodated on a single channel.
-
The total amount of digital information that can be transmitted through any telecommunications medium is measured in:
bps.
-
Digital subscriber lines:
operate over existing telephone lines to carry voice, data, and video.
-
T lines:
are high-speed, leased data lines providing guaranteed service levels.
-
Which protocol is the Internet based on?
TCP/IP
-
What service converts IP addresses into more recognizable alphanumeric names?
DNS
-
The child domain of the root is the:
top-level domain.
-
In the domain name "http://myspace.blogging.com", what are the root, top-level, second-level, and third-level domains, respectively?
".", com, blogging, myspace
-
Which organization helps define the overall structure of the Internet?
IAB
-
IPv6 is being developed in order to:
create more IP addresses.
-
Which of the following services enables logging on to one computer system and working on another?
Telnet
-
Instant messaging is a type of ________ service.
chat
-
Which of the following statements about RFID is not true?
RFIDs require line-of-sight contact to be read.
-
________ integrate(s) disparate channels for voice communications, data communications, instant messaging, e-mail, and electronic conferencing into a single experience.
Unified communications
-
A VPN:
is an encrypted private network configured within a public network.
-
Web browser software requests Web pages from the Internet using which protocol?
HTTP
-
Together, a protocol prefix, a domain name, a directory path, and a document name, are called a(n):
uniform resource locator.
-
The most common Web server today, controlling 65 percent of the market, is:
Apache HTTP Server.
-
What technology allows people to have content pulled from Web sites and fed automatically to their computers?
RSS
-
The process of employing techniques to help a Web site achieve a higher ranking with the major search engines is called:
SEO.
-
Which of the following statements is not true about search engines?
There are hundreds of search engines vying for user attention, with no clear leader having yet emerged.
-
Which of the following is an example of the "visual Web"?
Pinterest
-
A LAN would be used to connect all of the following except:
all of the computers in a city.
-
The most appropriate wireless networking standard for creating PANs is:
Bluetooth.
-
Bluetooth can be used to link up to ________ devices within a 10-meter area using low-power, radio-based communication.
eight
-
Which process is used to protect transmitted data in a VPN?
Tunneling
-
One or more access points positioned on a ceiling, wall, or other strategic spot in a public place to provide maximum wireless coverage for a specific area are referred to as:
hotspots.
-
The 802.11 set of standards is known as:
Wi-Fi.
-
The WiMax standard can transmit up to a distance of approximately:
30 miles.
-
What is the primary difference between 3G and 4G cellular systems?
4G systems have greater transmission speeds.
-
Based on your reading of the examples in the chapter, what would be the best use of RFID for a business?
Managing the supply chain
-
A ________ is special software that routes and manages communications on the network and coordinates networks resources.
network operating system/NOS
-
A router is a device that forwards packets of data through different networks, ensuring that the data gets to the right address.
T
-
Prior to the development of ________, computer networks used leased, dedicated telephone circuits to communicate with other computers in remote locations.
packet switching
-
An analog signal is a discrete, binary waveform that transmits data coded into two discrete states such as 1-bits and 0-bits.
F
-
In Europe, and much of the world, the standard for cellular services is:
GSM.
-
Today, most Americans connect to the Internet through broadband connections at speeds up to 15 Mbps.
T
-
An ISP is a commercial organization that owns a region of transcontinental high-speed backbone networks carrying the bulk of Internet traffic.
F
-
The trunk lines of the Internet are typically owned by network service providers.
T
-
A Web server is a dedicated computer that delivers Web pages to client computers.
F
-
A(n) ________ is a box consisting of a radio receiver/transmitter and antennas that links to a wired network, router, or hub.
access point
|
|