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WorksheetsTelecommunications, Internet and Networks
Total questions: 20
Worksheet time: 10mins
Which of the following is a device that sends packets of data through different networks assuring they go to the correct address?
NIC
Switch
Router
Hub
Modem
The Internet is based on which three key technologies?
Client/server computing, packet switching, and HTTP
Client/server computing, packet switching, and the development of communications
standards for linking networks and computers
TCP/IP, HTML, and HTTP
TCP/IP, HTTP, and packet switching
Email, instant messaging, and newsgroups
In TCP/IP, IP is responsible for which of the following?
Disassembling and reassembling packets during transmission
Breaking messages down into packets
Moving packets over the network
Sequencing the transfer of packets
Establishing an Internet connection between two computers
Which of the following is not a characteristic of packet switching?
Packets are reassembled into the original message when they reach their destinations.
Packets are routed through many different paths.
Packet switching requires point-to-point circuits.
Packets travel independently of each other.
Packets include data for checking transmission errors.
Which of the following is the best description of a protocol in a telecommunications network architecture?
A device that handles the switching of voice and data in a local area network
A pathway through which packets are routed
The main computer in a telecommunications network
A standard set of rules and procedures for control of communications in a network
A communications service for microcomputer users
What are the four layers of the TCP/IP reference model?
Software, Hardware, Network Interface, Internet
Application, Hardware, Internet, and Network Interface
Application, Transport, Internet, and Network Interface
Physical, Application, Transport, and Network Interface
Physical, Application, Internet, and Network Interface
Client/server computing is a:
distributed computing model where clients are linked to one another through a network that is controlled by a network server computer
network that connects sensors to desktop computers
network where centralized mainframe computers serve local devices
centralized model of computing for large corporations
centralized computing model where local computers are connected to one another by a network
Which of the following is a device that makes possible the translation of digital signals to analog sound signals used by a computer network?
Local area network
TCP/IP
Twisted wire
Modem
DSL
Which type of network treats all processors equally and allows peripheral devices to be shared without going to a separate server?
Peer-to-peer
Windows domain network
MAN
LAN
Wireless
Bandwidth is the:
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.
number of frequencies that can be broadcast through a medium.
geographical distance spanned by a network.
total number of bytes that can be sent through a medium per second.
What service converts natural language names to IP addresses?
HTML
HTTP
DNS
IP
FTP
IPv6 has been developed in order to:
update the packet transmission protocols for higher bandwidth.
create more IP addresses.
support Internet2.
reduce excess IP addresses.
allow for different levels of service.
Predictive search in Google's search engine:
uses a knowledge graph of what similar people searched on to predict your search interests.
maintains a history of your searches and then predicts what you will search on next.
predicts what you are looking for as you enter words into the query box
uses a tracking service and cookies on your browser to predict search results.
uses a semantic approach to predict what you are looking for.
A VPN:
provides secure, encrypted communications using Telnet.
is an Internet-based service for delivering voice communications.
is a proprietary networking service technology developed by individual corporations.
is more expensive than a dedicated network.
is an encrypted private network configured within a public network.
Web browser software requests web pages from the Internet using which of the following protocols?
HTTP
FTP
URL
HTML
DNS
The most common web servers today are:
IBM HTTP Server and Apache HTTP Server.
Netscape Server and Apache HTTP.
Microsoft IIS and IBM HTTP Server.
WebSTAR and Netscape Server.
Apache HTTP Server and Microsoft IIS.
Shopping bots use ________ software for searching the Internet.
SEO
Web 2.0
Comparison
intelligent agent
Web 3.0
The Internet of Things (IoT) refers to:
the idea that nearly everyone in the United States is connected to the Internet.
the role of computer processors in automobiles.
the fact that nearly everyone has some kind of computer today.
billions of Internet-connected sensors.
the idea that cars, planes, factories, and government are all connected to the Internet.
Which of the following statements about RFID is not true?
RFIDs use an antenna to transmit data.
RFIDs require line-of-sight contact to be read.
Microchips embedded in RFIDs are used to store data.
RFIDs transmit only over a short range.
RFID tags and antennas come in a variety of shapes and sizes.
A(n) ________ is a box consisting of a radio receiver/transmitter and antennas that links to a wired network, router, or hub.
hub
RFID Receiver
access point
hotspot
WiMax Receiver
