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What does DSL stand for in the context of networking?
a. Digital Subscriber Line
b. Direct Signal Link
c. Digital System Layer
d. Dynamic Service Layer
Answer: atestbook
Which medium does a DSL modem use to transmit data?
a. Fiber-optic cable
b. Twisted pair copper telephone lines
c. Coaxial cable
d. Wireless radio waves
Answer: bwikipedia+1
Which device at a local telephone exchange communicates with a DSL modem?
a. DSLAM
b. Switch
c. Router
d. Access Point
Answer: atechnicalexamguide.blogspot+1
What primary function does a DSL modem perform?
a. Converts analog signals to digital
b. Modulates and demodulates digital data for transmission over telephone lines
c. Encrypts network traffic
d. Performs packet switching
Answer: bblackbox+1
Which DSL variant is most commonly used for residential internet?
a. VDSL
b. SDSL
c. HDSL
d. ADSL
Answer: dcbtnuggets
What is the main difference between ADSL and SDSL?
a. ADSL is symmetric, SDSL is asymmetric
b. ADSL has higher download speeds than upload speeds
c. SDSL uses fiber optics
d. SDSL is for satellite connections
Answer: btutorialspoint+1
DSL modems can transmit data simultaneously with voice on the same line by using:
a. Frequency division multiplexing
b. Time division multiplexing
c. Packet switching
d. Circuit switching
Answer: awikipedia+1
What is the usual frequency range used by DSL for data transmission?
a. 300 – 3400 Hz
b. 4 kHz – 1 MHz
c. 20 MHz – 100 MHz
d. 100 Hz – 2 kHz
Answer: bwikipedia
What device separates voice and data signals in DSL systems?
a. Modem
b. Splitter
c. Router
d. Switch
Answer: bwikipedia+1
What modulation technique is commonly used for ADSL downstream data?
a. OFDM
b. QAM
c. ASK
d. PSK
Answer: bcbtnuggets
Which protocol is used by ADSL for data transmission between modem and DSLAM?
a. PPP
b. DMT (Discrete Multitone Modulation)
c. TCP
d. UDP
Answer: bwikipedia
What happens when line quality decreases in a DSL connection?
a. Connection fails
b. Data rate automatically lowers
c. Both voice and data transmission stop
d. Only voice transmission degrades
Answer: bwikipedia+1
Which type of DSL provides equal upstream and downstream bandwidth?
a. ADSL
b. SDSL
c. VDSL
d. G.fast
Answer: bcbtnuggets
What is the maximum theoretical distance for ADSL over copper wire?
a. 100 meters
b. 300 meters
c. 5.5 kilometers
d. 10 meters
Answer: ctutorialspoint
Which factor most affects DSL modem transmission rates?
a. Color of cable
b. Gauge of twisted pair and interference
c. Type of modem used
d. Brand of computer
Answer: bsanfoundry
What is the role of DSL filters?
a. Amplify high-frequency signals
b. Prevent high-frequency DSL signals from disturbing voice calls
c. Encrypt user data
d. Multiplex Ethernet signals
Answer: bblackbox+1
Which DSL standard allows the highest data speeds on copper lines?
a. VDSL2
b. ADSL
c. SDSL
d. HDSL
Answer: acbtnuggets
What device connects the internal network to a DSL modem?
a. Network Switch
b. Router
c. Bridge
d. Hub
Answer: btp-link+1
What does DSLAM stand for?
a. Digital Subscriber Line Access Multiplexer
b. Data Service Link Association Manager
c. Digital Signal Level Adapter Module
d. Direct Signal Link Application Module
Answer: atechnicalexamguide.blogspot+1
Which technology is used in DSL modems to improve resistance to signal interference?
a. OFDM (Orthogonal Frequency Division Multiplexing)
b. CDMA
c. FDM
d. Token Ring
Answer: acbtnuggets
Which vendor has supplied DSLAM equipment for BSNL in India?
a. UTSTARCOM
b. SIEMENS
c. HUAWEI
d. All of the above
Answer: dtechnicalexamguide.blogspot
What is the main function of a splitter in DSL networks?
a. Combines Ethernet and Wi-Fi signals
b. Separates voice and data frequencies
c. Provides power to DSL modems
d. Converts analog to digital signals
Answer: bblackbox+1
What does the “asymmetric” mean in ADSL?
a. Different upload and download speeds
b. Non-standard modulation
c. Transmission in only one direction
d. Connection to two service providers
Answer: acbtnuggets
Which of the following is NOT a DSL technology?
a. VDSL
b. ADSL
c. DOCSIS
d. SDSL
Answer: cexamradar
What type of cable is typically required for DSL modem installation?
a. Coaxial cable
b. Twisted pair copper wire
c. Fiber optic cable
d. Flat ribbon cable
Answer: bwikipedia+1
What technique do DSL modems use for error correction?
a. Simple parity check
b. Forward error correction
c. Secure sockets layer
d. ARP
Answer: bwikipedia+1
Which organization defines DSL standards globally?
a. IEEE
b. ITU-T
c. IETF
d. W3C
Answer: bcbtnuggets
What does an inline DSL filter block?
a. Voice frequencies
b. High-frequency DSL signals from telephone devices
c. Data packets over Ethernet
d. All frequencies
Answer: bblackbox+1
What network device aggregates multiple DSL connections?
a. DSLAM
b. Hub
c. Repeater
d. Switch
Answer: atechnicalexamguide.blogspot+1
Which is a major benefit of DSL over dial-up modem?
a. Dedicated internet connection, always on
b. Faster HDMI performance
c. Less electricity consumption
d. Requires satellite connection
Answer: ageeksforgeeks+1
What device creates a Wi-Fi network directly from a DSL line?
a. DSL modem router
b. Repeater
c. Switch
d. Ethernet hub
Answer: azoomlinenetwork+1
Which DSL standard is recommended for extreme high-speed applications close to the central office?
a. G.fast
b. SDSL
c. ADSL
d. VDSL
Answer: acbtnuggets
What component is necessary for simultaneous voice and data on a single DSL line?
a. Splitter/filter
b. Patch panel
c. Fiber converter
d. Serial port controller
Answer: awikipedia+1
In DSL networking, what does modulation achieve?
a. Error correction
b. Conversion of digital data to analog signals
c. Bandwidth compression
d. IP address assignment
Answer: bwikipedia+1
DSL modems connect to which type of access technology?
a. Last-mile broadband
b. Long-haul microwave
c. Wireless LAN
d. Satellite links
Answer: ablackbox
What transmission speed can DSL modems provide compared to dial-up?
a. Slower
b. Similar
c. Up to 25 times faster
d. Only for voice calls
Answer: cgeeksforgeeks
Which part of the frequency spectrum does DSL typically avoid to support voice transmission?
a. 8 kHz and below
b. 64 kHz and above
c. 2 MHz and below
d. 4 MHz and above
Answer: awikipedia+1
Which technical limitation commonly impacts DSL modem connectivity?
a. Distance from central office
b. Number of computers on LAN
c. Wireless interference
d. Cable color
Answer: atutorialspoint+1
What is the function of error-correcting codes in DSL modems?
a. To encrypt user data
b. To allow correction of minor bit errors caused by noise
c. To multiplex signals
d. To filter analog signals
Answer: bwikipedia
What service does a DSL modem primarily provide?
a. TV broadcast
b. Internet connectivity
c. VPN establishment
d. Game console networking
Answer: bgeeksforgeeks+1
DSL modems are mostly used for:
a. Short-distance data transmission
b. Long-haul data transmission
c. WAN backbone networking
d. Satellite uplink
Answer: ablackbox
Which high-speed variant supports up to gigabit speeds over short distances?
a. VDSL2
b. SDSL
c. G.fast
d. ADSL
Answer: ccbtnuggets
High frequency DSL signals are blocked from phones using:
a. Splitters/Filters
b. Bridges
c. Routers
d. Amplifiers
Answer: awikipedia+1
DSL technology can deliver simultaneous:
a. Only voice
b. Only data
c. Voice and data
d. Only video
Answer: cblackbox+1
What is a benefit of ADSL for typical Internet users?
a. Higher download speeds than upload
b. Symmetric speeds
c. Satellite connectivity
d. Wireless only transmission
Answer: atutorialspoint+1
What does a DSL modem router provide that a basic DSL modem does not?
a. Built-in Wi-Fi and routing
b. Only Ethernet ports
c. Test signals for line quality
d. Fiber optic connectivity
Answer: atp-link+1
Which network device works directly with DSL modems to connect many users to the Internet?
a. DSLAM
b. Switch
c. Hub
d. Bridge
Answer: atechnicalexamguide.blogspot+1
What do DSL modems use to access higher data rates over twisted pair lines?
a. Advanced modulation techniques
b. Power amplification only
c. Low-resistance cabling
d. Satellite relay
Answer: awikipedia+1
Which transmission method ensures upstream and downstream traffic don’t interfere in DSL?
a. Frequency band segregation
b. Packet switching
c. Time division multiplexing
d. Circuit switching
Answer: awikipedia
Which network topology is enabled by a DSL modem for residential users?
a. Star topology
b. Bus topology
c. Point-to-point access
d. Mesh topology
Answer: cwikipedia+1

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