Question

Which one of the following requires phone line but offers faster access speed than the dial up connection?
निम्नलिखित में से किसके लिए फ़ोन लाइन की आवश्यकता होती है लेकिन डायल अप कनेक्शन की तुलना में तेज़ पहुँच गति प्रदान करता है?
Select one:
O A Fibre optic serving
फाइबर ऑएिक सर्विग
O B. Digital subscriber line (DSL)
डिजिटत सब्सक्राइबर लाइन (DSL)
OC. Modem
मॉडिम
O D. Cable access
केबल ऐक्सेस​

Answer 1

Answer:

Dial-up Internet access is a form of Internet access that uses the facilities of the public switched telephone network (PSTN) to establish a connection to an Internet service provider (ISP) by dialing a telephone number on a conventional telephone line. Dial-up connections use modems to decode audio signals into data to send to a router or computer, and to encode signals from the latter two devices to send to another mode

Explanation:

Answer 2

Digital subscriber line (DSL) requires phone line but offers faster access speed than the dial up connection.

Extra Information:

Digital subscriber line (DSL) =>

1. Digital subscriber line or digital subscriber loop helps us to transfer digital data through telephone lines.

2. ADSL(asymmetric digital subscriber line) is a type of DSL which is used most commonly for having Internet access.

3. Bit rate of DSL services generally ranges between 256 kbit/s to over 100 Mbit/s to the customer and has also reached 1 Gbit/s too.

4. There are various types of DSL :-

(A) RADSL (Rate Adaptive Digital Subscriber Line)

(B) ADSL (Asymmetrical Digital Subscriber Line) => Upstream data rate is low than downstream data rate.

(C) ADSL Lite

(D) R-ADSL (Rate-Adapative Digital Subscriber Line)

(E) HDSL (Hight Bit-Rate Digital Subscriber Line)

(F) IDSL (ISDN Digital Subscriber Line)

(G) SDSL (Symmetric Digital Subscriber Line)  => Have equal downstream and upstream data rates.

(H) VDSL (Very High Bit-rate Digital Subscriber Line)

(I) VDSL2 (Very High Bit-rate Digital Subscriber Line 2)