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 protocol is the Internet based on? |
TCP/IP |
A ________ is special software that routes and manages communications on the network and coordinates networks resources. |
network operating system/NOS |
Prior to the development of ________, computer networks used leased, dedicated telephone circuits to communicate with other computers in remote locations. |
VOIP |
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. |
Which of the following is not one of the four layers of the TCP/IP communications model? |
Local area layer |
Telephone networks are fundamentally different from computer networks. |
True |
Increasingly, voice, video, and data communications are all based on Internet technology. |
True |
To create a computer network, you must have at least two computers. |
True |
An NOS must reside on a dedicated server computer in order to manage a network. |
False |
A hub is a networking device that is used to filter and forward data to specified destinations on the network. |
False |
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 |
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 |
Two computers using TCP/IP can communicate even if they are based on different hardware and software platforms. |
True |
A router is a device that forwards packets of data through different networks, ensuring that the data gets to the right address. |
True |
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 |
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 |
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. |
A LAN could be used to connect all of the following except: |
all of the computers in a city. |
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 |
The number of cycles per second that can be sent through any telecommunications medium is measured in kilobytes. |
False |
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 |
An analog signal is a discrete, binary waveform that transmits data coded into two discrete states such as 1-bits and 0-bits. |
False |
Today, most Americans connect to the Internet through broadband connections at speeds up to 15 Mbps. |
True |
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. |
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 was 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 |
________ integrate(s) disparate channels for voice communications, data communications, instant messaging, email, 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. |
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 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"? |
|
Which process is used to protect transmitted data in a VPN? |
Tunneling |
The advanced networking consortium representing more than 500 universities, businesses, and government agencies is known as: |
Internet2 |
Which of the following is a challenge posed by Wi-Fi networks? |
Susceptibility to interference from nearby wireless systems |
Which of the following statements about RFID is not true? |
RFIDs require line-of-sight contact to be read. |
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 |
MIS-Chapter 7
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