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60 terms

Chapter 7

STUDY
PLAY
In TCP/IP, IP is responsible for
- disassembling and reassembling of packets during transmission.
- establishing an Internet connection between two computers.
- moving packets over the network.
- sequencing the transfer of packets.
disassembling and reassembling of packets during transmission.
In the domain name "http://myspace.blogging.com", what are the root, top-level, second-level, and third-level domains, respectively?
- "http://", myspace, blogging, com
- "http://", com, blogging, myspace
- ".", com, blogging, myspace
- ".", myspace, blogging, com
".", com, blogging, myspace
Bandwidth is the
- number of frequencies that can be broadcast through a medium.
- number of cycles per second that can be sent through a medium.
- difference between the highest and lowest frequencies that can be accommodated on a single channel.
- total number of bytes that can be sent through a medium per second
difference between the highest and lowest frequencies that can be accommodated on a single channel.
The open-source Web server that controls 70 percent of the market is
- Microsoft IIS.
- ASP.net.
- Apache HTTP server.
- Netscape
Apache HTTP server.
The number of cycles per second that can be sent through any telecommunications medium is measured in kilobytes.
- True
- False
False
The child domain of the root is the
- top-level domain.
- second-level domain.
- host name.
- domain extension.
top-level domain.
Which of the following services enables logging on to one computer system and working on another?
- FTP
- LISTSERV
- Telnet
- World Wide Web
Telnet
________ integrate(s) disparate channels for voice communications, data communications, instant messaging, e-mail, and electronic conferencing into a single experience.
- Wireless networks
- Intranets
- Virtual private networks
- Unified communications
Unified communications
Digital subscriber lines
- operate over existing telephone lines to carry voice, data, and video.
- operate over coaxial lines to deliver Internet access.
- are very-high-speed data lines typically leased from long-distance telephone companies.
- have up to twenty-four 64-Kbps channels.
operate over existing telephone lines to carry voice, data, and video.
A network that covers entire geographical regions is most commonly referred to as a(n):
- local area network.
- intranet.
- peer-to-peer network.
- wide area network.
wide area network.
To use an analog telephone system for sending digital data, you must us
- a modem.
- a router.
- DSL.
- twisted wire.
a modem.
Circuit switching makes much more efficient use of the communications capacity of a network than does packet switching.
- True
- False
False
A hub is a networking device that connects network components and are used to filter and forward data to specified destinations on the network.
- True
- False
False
CDMA
- is the major European digital cellular standard.
- is more expensive than GSM.
- transmits over several frequencies.
- uses the 1.9 GHz band.
transmits over several frequencies.
A VPN
- is an encrypted private network configured within a public network.
- is more expensive than a dedicated network.
- provides secure, encrypted communications using Telnet.
- is an Internet-based service for delivering voice communications.
is an encrypted private network configured within a public network.
VoIP technology delivers video information in digital form using packet switching.
- True
- False
False
Telephone networks are fundamentally different from computer networks.
- True
- False
True
What service converts IP addresses into more recognizable alphanumeric names?
- HTML
- DNS
- IP
- HTTP
DNS
The Wi-Fi 802.11a standard can transmit up to
- 54 Mbps in the 5-GHz frequency range.
- 11 Mbps in the 2.4-GHz frequency range.
- 54 Mbps in the 2.4-GHz frequency range.
- 722 Kbps in the 2.4-GHz frequency range.
54 Mbps in the 5-GHz frequency range.
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.
- True
- False
True
________ work(s) by using radio waves to communicate with radio antennas placed within adjacent geographic areas.
- Cell phones
- Microwaves
- Satellites
- WANs
Cell phones
Which generation of network are wireless cellular phone systems entering?
- 2.5G
- 3G
- 3.5G
- 4G
3G
In a telecommunications network architecture, a protocol is
- a device that handles the switching of voice and data in a local area network.
- a standard set of rules and procedures for control of communications in a network.
- a communications service for microcomputer users.
- the main computer in a telecommunications network.
a standard set of rules and procedures for control of communications in a network.
The WiMax standard can transmit up to a distance of approximately
- 30 meters.
- 500 meters.
- 30 miles.
- 5 miles.
30 miles.
The IEEE standard for the WiMax is
- IEEE 802.15.
- IEEE 802.11.
- IEEE 802.16.
- IEEE 802.20.
IEEE 802.16.
WiMax has a wireless access range of up to 300 feet.
- True
- False
False
Increasingly, voice, video, and data communications are all based on Internet technology.
- True
- False
True
What technology allows people to have content pulled from Web sites and fed automatically to their computers?
- FTP
- RSS
- HTTP
- Bluetooth
RSS
The success of the Internet is in part due to its design as an infinitely scalable network capable of handling millions of users.
- True
- False
False
A protocol is a standard set of rules and procedures for the control of communications in a network.
- True
- False
True
Passive RFID tags
- have their own power source.
- have a range of several feet.
- enable data to be rewritten and modified.
- are used in automated toll-collection systems.
have a range of several feet.
In the domain name "http://myspace.blogging.com", what are the root, top-level, second-level, and third-level domains, respectively?
- "http://", myspace, blogging, com
- "http://", com, blogging, myspace
- ".", com, blogging, myspace
- ".", myspace, blogging, com
".", com, blogging, myspace
Increasingly, voice, video, and data communications are all based on Internet technology.
- True
- False
True
A hub is a networking device that connects network components and are used to filter and forward data to specified destinations on the network.
- True
- False
False
A device that acts as a connection point between computers and can filter and forward data to a specified destination is called a
- hub.
- switch.
- router.
- NIC.
switch.
Coaxial cable is similar to that used for cable television and consists of thickly insulated copper wire.
- True
- False
True
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.
- True
- False
True
Which organization helps define the overall structure of the Internet?
- None (no one "owns" the Internet)
- W3C
- ICANN
- IAB
IAB
What service converts IP addresses into more recognizable alphanumeric names?
- HTML
- DNS
- IP
- HTTP
DNS
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
- touch points.
- hotspots.
- hot points.
- wireless hubs.
hotspots.
Fiber-optic cable is more expensive and harder to install than wire media.
- True
- False
True
The need in some cases for employees to have access to sexually explicit material on the Internet, such as medical researchers, suggests that companies
- cannot restrict Internet use.
- need specialized software to determine which types of material are acceptable.
- may need to maintain a database of acceptable Web sites.
- need to base their Internet use policies on the needs of the organization and culture.
need to base their Internet use policies on the needs of the organization and culture.
Web 2.0 is the collaborative effort led by the World Wide Web Consortium to add a layer of meaning atop the existing Web to reduce the amount of human involvement in searching for and processing Web information.
- True
- False
False
The most appropriate wireless networking standard for creating PANs is
- I-mode.
- IEEE 802.11b.
- WiFi.
- Bluetooth.
Bluetooth.
IPv6 is being developed in order to
- update the packet transmission protocols for higher bandwidth.
- create more IP addresses.
- allow for different levels of service.
- support Internet2.
create more IP addresses.
The number of cycles per second that can be sent through any telecommunications medium is measured in kilobytes.
- True
- False
False
Which signal types are represented by a continuous waveform?
- laser
- optical
- digital
- analog
laser
Which of the following is NOT a characteristic of packet switching?
- Packets travel independently of each other.
- Packets are routed through many different paths.
- Packet switching requires point-to-point circuits.
- Packets include data for checking transmission errors.
Packet switching requires point-to-point circuits.
The IEEE standard for the WiMax is
- IEEE 802.15.
- IEEE 802.11.
- IEEE 802.16.
- IEEE 802.20.
IEEE 802.16.
Web browser software requests Web pages from the Internet using which protocol?
- URL
- HTTP
- DNS
- HTML
HTTP
Bandwidth is the
- number of frequencies that can be broadcast through a medium.
- number of cycles per second that can be sent through a medium.
- difference between the highest and lowest frequencies that can be accommodated on a single channel.
- total number of bytes that can be sent through a medium per second.
difference between the highest and lowest frequencies that can be accommodated on a single channel.
A network that covers entire geographical regions is most commonly referred to as a(n):
- local area network.
- intranet.
- peer-to-peer network.
- wide area network.
wide area network.
The method of slicing digital messages into parcels, transmitting them along different communication paths, and reassembling them at their destinations is called
- multiplexing.
- packet switching.
- packet routing.
- ATM.
packet switching.
Which type of network treats all processors equally, and allows peripheral devices to be shared without going to a separate server?
- peer-to-peer
- wireless
- LAN
- ring
peer-to-peer
To connect two computers together in the same office, you must have a computer network.
- True
- False
True
Bluetooth can be used to link up to ________ devices within a 10-meter area using low-power, radio-based communication.
- four
- six
- eight
- ten
eight
The open-source Web server that controls 70 percent of the market is
- Microsoft IIS.
- ASP.net.
- Apache HTTP server.
- Netscape.
Apache HTTP server.
The WiMax standard can transmit up to a distance of approximately
- 30 meters.
- 500 meters.
- 30 miles.
- 5 miles.
30 miles.
Which type of network is used to connect digital devices within a half-mile or 500-meter radius?
- microwave
- LAN
- WAN
- MAN
LAN
RFID has been exceptionally popular because of its low implementation costs.
- True
- False
False