Browse Definitions :
Quiz

Quiz: DSL

DSL (Digital Subscriber Line) is a technology for bringing high-bandwidth information to homes and small businesses over ordinary copper telephone lines. Test your knowledge and find out if your brain cells are "always on".

How to take the quiz:
- After reading the question, click on the answer that you think is correct to go to the whatis.com definition. If the answer you've chosen is correct, you will see the question text (exactly or approximately) somewhere in the definition.
OR
- After reading the question, write down the letter of your answer choice on scrap paper. Check your answers by using the answer key at the end of the quiz.

 

1. This is the protocol used to "gather" DSL traffic from usersand forward it to a Digital Subscriber Line Access Multiplexer, which consolidates traffic across the backbone network.
a. forward DNS lookup
b. Transmission Control Protocol
c. Asynchronous Transfer Mode
d. Accelerated Hub Architecture

2. This form of DSL uses most of the channel to transmit downstream to the userand only a small part to receive information from the user.
a. VoIP
b. Asymmetric Digital Subscriber Line
c. ISDN
d. cable modem

3. This trademarked version of DSL that is somewhat slower than ADSL but has the advantage that a "splitter" does not need to be installed at the user's end.
a. Unified Messaging
b. Consumer DSL
c. G.Lite
d. Netcaster

4. This device divides the incoming signal into low frequencies to send to voice devices, and high frequencies for data to the computer.
a. multicast router
b. interface device
c. sequencer
d. splitter

5. This is a network device, usually at a telephone company centraloffice, that receives signals from multiple customer DSL connections and puts the signals on a high-speed backbone line.
a. MBone
b. repeater
c. hub
d. DSLAM

6. This is the leading method of signal modulation for DSL servicein which the usable frequency range is separated into 256 frequency bands(or channels) of 4.3125KHz each.
a. pulse code modulation
b. Discrete Multitone
c. frequency-division multiplexing
d. Signaling System 7

7. This is a technology from US Robotics (now 3Com) for the downstream transmission of data over ordinary phone lines at 56 Kbps.
a. Y-modem
b. xDSL
c. Z-modem
d. x2

8. This term is used to describe multiple signals or streams of information sent at the same time in the form of a single, complex signal and then recovered as separate signals at the receiving end.
a. multicast
b. multilink bundle
c. multiplexing
d. multithreading

9. This type of DSL is used for wideband digital transmission within a corporate site and between the telephone company and a customer.It is symmetrical, meaning that an equal amount of bandwidth is available in both directions.
a. BAL
b. high bit-rate DSL
c. vBNS
d. wideband code-division multiple access

10. This was the original approach for modulation of a Digital Subscriber Line (DSL) signal.
a. carrierless amplitude/phase
b. pulse code modulation
c. quadrature amplitude modulation
d. phase-shift keying

SCROLL DOWN FOR ANSWER KEY

















See the rest of our quiz topics
Answer Key: 1c;2b;3b;4d;5d;6b;7d;8c;9b;10a
Learn more about Digital Subscriber Line (DSL) with our Fast Guide to DSL

This was last updated in April 2005

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

  • Whistleblower Protection Act

    The Whistleblower Protection Act of 1989 is a law that protects federal government employees in the United States from ...

  • smart contract

    A smart contract, also known as a cryptocontract, is a computer program that directly controls the transfer of digital currencies...

  • risk map (risk heat map)

    A risk map, also known as a risk heat map, is a data visualization tool for communicating specific risks an organization faces. A...

SearchSecurity

  • certificate authority (CA)

    A certificate authority (CA) is a trusted entity that issues digital certificates, which are data files used to cryptographically...

  • hacktivism

    Hacktivism is the act of hacking, or breaking into a computer system, for a politically or socially motivated purpose.

  • advanced persistent threat (APT)

    An advanced persistent threat (APT) is a prolonged and targeted cyberattack in which an intruder gains access to a network and ...

SearchHealthIT

  • Cerner Corp.

    Cerner Corp. is a public company in North Kansas City, Mo., that provides various health information technologies, ranging from ...

  • clinical decision support system (CDSS)

    A clinical decision support system (CDSS) is an application that analyzes data to help healthcare providers make decisions and ...

  • Health IT (health information technology)

    Health IT (health information technology) is the area of IT involving the design, development, creation, use and maintenance of ...

SearchDisasterRecovery

  • tabletop exercise (TTX)

    A tabletop exercise (TTX) is a disaster preparedness activity that takes participants through the process of dealing with a ...

  • risk mitigation

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a data center.

  • ransomware recovery

    Ransomware recovery is the process of resuming options following a cyberattack that demands payment in exchange for unlocking ...

SearchStorage

  • SSD (solid-state drive)

    An SSD (solid-state drive) is a type of nonvolatile storage media that stores persistent data on solid-state flash memory.

  • file system

    In a computer, a file system -- sometimes written filesystem -- is the way in which files are named and where they are placed ...

  • storage virtualization

    Storage virtualization is the pooling of physical storage from multiple storage devices into what appears to be a single storage ...

Close