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What is the full form of "STD"?

What is the full form of "STD"? Correct Answer Subscriber Trunk Dialling

Subscriber trunk dialling, also known as subscriber toll dialing, is a telephone numbering plan feature and telecommunications technology for the dialing of trunk calls by telephone subscribers without the assistance from switchboard operators. The technology was introduced in the United Kingdom in the 1950s.

Related Questions

What is the equation for bioavailability? std Dstd τtest / test Dtest τstd b) test Dtest τstd / std Dstd τtest c) test Dstd τtest / std Dtest τstd d) 1 / std Dtest τstd
Direction : Two statements I and II are given. These statement may be either independent causes or may be effects of independent causes or a common cause. One of these statements may be the effect of the other statements. Read both the statements and decide which of the following answer choice correctly depicts the relationship between these two statements. Mark answer : I. The school authority has asked the X Std. students to attend special classes to be conducted on Sundays. II. The parents of the X Std. students have withdrawn their wards from attending private tuitions conducted on Sundays.
Statement : A large number of students who have passed their XII Std. terminal examination in the country could not get admission to colleges as the number of seats available are grossly inadequate. Courses of Action : I. The evaluation system of XII Std. terminal examination should be made more tough so that fewer students pass the examination. II. The Government should encourage the private sector to open new colleges by providing them land at cheaper rate. III. The rich people should be asked to send their wards to foreign countries for higher studies enabling the needy students to get admission in colleges within the country.
Statement: A large number of students who have passed their XII Std. terminal examination in the country could not get admission to colleges as the number of seats available are grossly inadequate.
Courses of action:
a. The evaluation system of XII Std. terminal examination should be made more tough so that fewer students pass the examination.
b. The Government should encourage the private sector to open new colleges by providing them land at cheaper rate.
c. The rich people should be asked to send their wards to foreign countries for higher studies enabling the needy students to get admission in colleges within the country.
Statement : A large number of students who have passed their XII Std. terminal examination in the country could not get admission to colleges as the number of seats available are grossly inadequate.

Courses of Action :
I. The evaluation system of XII Std. terminal examination should be made more tough so that fewer students pass the examination.
II. The Government should encourage the private sector to open new colleges by providing them land at cheaper rate.
III. The rich people should be asked to send their wards to foreign countries for higher studies enabling the needy students to get admission in colleges within the country.
Direction : Two statements I and II are given. These statement may be either independent causes or may be effects of independent causes or a common cause. One of these statements may be the effect of the other statements. Read both the statements and decide which of the following answer choice correctly depicts the relationship between these two statements. Mark answer :

I. The school authority has asked the X Std. students to attend special classes to be conducted on Sundays.
II. The parents of the X Std. students have withdrawn their wards from attending private tuitions conducted on Sundays.
Which three statements are true about the operation of a full-duplex Ethernet network?
1. There are no collisions in full-duplex mode.
2. A dedicated switch port is required for each full-duplex node.
3. Ethernet hub ports are preconfigured for full-duplex mode.
4. In a full-duplex environment, the host network card must check for the availability of the network media before transmitting.
5. The host network card and the switch port must be capable of operating in full-duplex mode.
The charges for a five-day trip by a tourist bus for one full ticket and a half-ticket are Rs. 1440 inclusive of boarding charges which are same for a full ticket and a half-ticket. The charges for the same trip for 2 full tickets and one half-ticket inclusive of boarding charges are Rs. 2220. The fare for a half-ticket is 75% of the full ticket. Find the fare and the boarding charges separately for one full ticket.
When we compare the half bridge converter and full bridge converter 1. The maximum collector current of a full bridge is only double that of the half bridge 2. Full bridge uses 4-power switches instead of 2, as in the double bridge. 3. Output power of a full bridge is twice that of a half bridge with the same input voltage and current. When of the above statements are correct?
A Concert half ticket costs half the full basic ticket and the VIP area charge is the same on half ticket as on full ticket. One VIP ticket costs Rs. 216 and one full and one half VIP tickets cost Rs. 327. What is the basic full ticket cost and what is the VIP charge?