CIS Exam #3
Which type of network connects smart devices or consumer electronics within a range of about 30 feet (10 meters) and without the use of wires or cables?
PAN (personal area network)
_________ technology divides a message into several packets that can be routed independently to their destination.
Packet switching
Which type of network topology connects a peripheral device to a host device?
Point-to-point
Which type of network topology connects multiple devices to a central device?
Star
On a network, any device that stores or generates data is considered to be a(n) _________.
DTE (data terminal equipment)
__________ LANs are usually arranged in a star topology with computers wired to central switching circuitry that is incorporated in modern routers.
Ethernet
Which type of protocol provides a way to transfer files from one computer to another over any TCP/IP network, such as a LAN or the Internet?
FTP
A communication port is a physical circuit through which data flows.
False
A private IP address can be used to send data over the Internet.
False
Data cannot flow over multiple networks that have different topologies.
False
File sharing poses no real security risks.
False
Most Internet connections are symmetrical.
False
Most wireless LANs use licensed frequencies that require applying to the Federal Communications Commission (FCC) for permission.
False
The organization that supervises Internet addressing is ARPANET.
False
When connecting to the Internet, most Internet users connect to a Tier 1 network.
False
Wireless connections use licensed frequencies that are available for public use.
False
Which type of cable is used for high-capacity trunk lines that provide main routes for telephone, cable, and Internet communications?
Fiber-optic cables
DSL is an example of what type of Internet access?
Fixed
Which DCE would you use if you wanted to extend a wired network by adding more ports?
Hub
What organization is the top-level authority for supervising domain name requests?
ICANN (Internet Corporation for Assigned Names and Numbers)
Internet addresses are controlled by which one of the following protocols?
IP
Networks that form the Internet are maintained by ____________.
ISPs
Which network tier forms the Internet backbone?
Tier 1
A Web site cannot be accessed by its domain name until the name is added to the domain name server lists.
True
Connection speed is technically a measure of capacity.
True
Domain name servers maintain lists of all domain names and their corresponding IP addresses.
True
Dropbox is an example of a file hosting service.
True
LANs use many of the same network technologies as the Internet.
True
Many RFID (radio-frequency identification) and NFC (near field communication) tags contain no power source of their own and depend on the receiving device to provide the power for data exchange.
True
Microwaves have more carrying capacity than radio waves.
True
Mobile broadband can be used to access the Internet from a laptop or desktop computer.
True
Napster spurred the development of sophisticated, distributed protocols such as BitTorrent.
True
Networks can be classified according to their size and geographic scope.
True
Packet loss of less than 2% is required for acceptable streaming, gaming, Skype, and voice calls.
True
The Internet is the world's largest WAN.
True
The most widespread wireless channel for communication networks is radio frequency (RF) signals.
True
UDP (User Datagram Protocol) is faster than TCP (Transmission Control Protocol) but does not perform error checking.
True
When interference affects a wireless signal, data must be retransmitted.
True
When setting up a Wi-Fi network, the router you select should support the fastest device you'll want to use on the network.
True
Wi-Fi signals may reach up to 300 feet from the router.
True
With wired connections, such as Ethernet, the rated speed and range are usually quite different to actual performance.
True
You can access FTP servers with a browser.
True
You can set up Wi-Fi to use wireless mesh topology or star topology.
True
You may be able to bypass DNS outages by changing your DNS server.
True
Which type of network covers a large geographical area and usually consists of several smaller networks, which might use different computer platforms and network technologies?
WAN
Which type of mobile broadband service has maximum download rates of 300 Mbps and upload rates of 75 Mbps?
4G
Which of the following is an advantage of wired connections?
All of the above
Which of the following is an example of a DCE?
All of the above
When you connect to a Wi-Fi hotspot, your digital device is classified as a(n) _______________.
DTE
Which type of communication protocol converts data into standard formats that can be used by applications?
Arrival
What type of Internet connection do you have when upload speed differs from download speed?
Asymmetric
Which file-sharing protocol distributes the role of a file server across a collection of dispersed computers?
BitTorrent
_______ are designed to provide connectivity for devices within a limited area, typically within the premises of a home, office building, business, or school.
LANs
Which type of network topology allows for redundant paths between devices that can be used to bypass failed devices?
Mesh
Which type of broadband Internet access involves using cellular data networks?
Mobile
Suppose you wanted to run a Web server or FTP server from your home. What type of IP address would you want?
Static
On a network, which protocol is responsible for dividing files into chunks, adding headers containing information for reassembling packets in their original order, and error checking?
TCP
A modem is required for ________________ Internet access
all of the above
The bandwidth of a channel that carries digital data is usually measured in ___________.
bits per second
When network protocols clean a corrupted signal, the process is called ______________.
error correction
