MIS-Chapter 7
In the domain name "http://myspace.blogging.com", what are the root, top-level, second-level, and third-level domains, respectively?
.com, blogging, myspace
To use the analog telephone system for sending digital data, you must also use:
A modem
Which signal types are represented by a continuous waveform?
Analog
What are the four layers of the TCP/IP reference model?
Application, transport, Internet, and network interface
The telephone system is an example of a ________ network.
Circuit-switched
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
What service converts IP addresses into more recognizable alphanumeric names?
DNS
A hub is a networking device that is used to filter and forward data to specified destinations on the network.
False
An NOS must reside on a dedicated server computer in order to manage a network.
False
An analog signal is a discrete, binary waveform that transmits data coded into two discrete states such as 1-bits and 0-bits.
False
Central large mainframe computing has largely replaced client/server computing.
False
Circuit switching makes much more efficient use of the communications capacity of a network than does packet switching.
False
The number of cycles per second that can be sent through any telecommunications medium is measured in kilobytes.
False
Web browser software requests web pages from the Internet using which protocol?
HTTP
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
Which organization helps define the overall structure of the Internet?
IAB
The advanced networking consortium representing more than 500 universities, businesses, and government agencies is known as:
Internet2
Which type of network is used to connect digital devices within a half-mile or 500-meter radius?
LAN
Which of the following is not one of the four layers of the TCP/IP communications model?
Local area layer
A network that spans a city, and sometimes its major suburbs as well, is called a:
MAN
The method of slicing digital messages into parcels, transmitting them along different communication paths, and reassembling them at their destinations is called:
Packet switching
Which of the following is not a characteristic of packet switching?
Packet switching requires point-to-point circuits.
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 of the following is an example of the "visual web"?
Which of the following statements about RFID is not true?
RFIDs require line-of-sight contact to be read.
What technology allows people to have content pulled from websites and fed automatically to their computers?
RSS
The process of employing techniques to help a website achieve a higher ranking with the major search engines is called:
SEO
Which of the following is considered by many to be the defining Web 2.0 application?
Social networking
Which of the following is a challenge posed by Wi-Fi networks?
Susceptibility to interference from nearby wireless systems
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
Which protocol is the Internet based on?
TCP/IP
Which of the following services enables logging on to one computer system and working on another?
Telnet
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.
The child domain of the root is the:
Top-level domain
A router is a device that forwards packets of data through different networks, ensuring that the data gets to the right address.
True
Coaxial cable is similar to that used for cable television and consists of thickly insulated copper wire.
True
Fiber-optic cable is more expensive and harder to install than wire media.
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
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.
True
Increasingly, voice, video, and data communications are all based on Internet technology.
True
Telephone networks are fundamentally different from computer networks.
True
To create a computer network, you must have at least two computers.
True
Today, most Americans connect to the Internet through broadband connections at speeds up to 15 Mbps.
True
Two computers using TCP/IP can communicate even if they are based on different hardware and software platforms.
True
Which process is used to protect transmitted data in a VPN?
Tunneling
________ integrate(s) disparate channels for voice communications, data communications, instant messaging, email, and electronic conferencing into a single experience.
Unified communications
Prior to the development of ________, computer networks used leased, dedicated telephone circuits to communicate with other computers in remote locations.
VOIP
The 802.11 set of standards is known as:
Wi-Fi
A network that covers entire geographical regions is most commonly referred to as a(n):
Wide area network
Which of the following enables multiple users to create and edit web documents?
Wiki
In a telecommunications network architecture, a protocol is:
a standard set of rules and procedures for control of communications in a network.
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 LAN could be used to connect all of the following except:
all of the computers in a city.
T lines:
are high-speed, leased data lines providing guaranteed service levels.
The total amount of digital information that can be transmitted through any telecommunications medium is measured in:
bps
Instant messaging is a type of ________ service.
chat
IPv6 was developed in order to:
create more IP addresses.
Bandwidth is the:
difference between the highest and lowest frequencies that can be accommodated on a single channel.
In TCP/IP, IP is responsible for:
disassembling and reassembling of packets during transmission.
A VPN:
is an encrypted private network configured within a public network.
A ________ is special software that routes and manages communications on the network and coordinates networks resources.
network operating system/NOS
Digital subscriber lines:
operate over existing telephone lines to carry voice, data, and video.
A networking approach where many control functions for managing the movement of data on a network are managed by a central program separately from the network itself is known as:
software-defined networking.
Together, a protocol prefix, a domain name, a directory path, and a document name, are called a(n):
uniform resource locator.
