Practice Quiz in Wire and Wireless Communications System Part 42

Question 411. In RJ-11, the RJ stands for

Question 412. In a 4-wire telephone set connection, (used to connect telephone set to central office switching) the red coded wire is used __________.

Question 413. Calls that are placed between two stations that are connected to different local exchanges.

Question 414. It is the exchange of signaling messages between switching machines.

Question 415. It is a measure of the faithful reproduction of scanned prints in a facsimile communications.

Question 416. These are unused sections of cables that are connected in shunt working cable pair, such as a local loop. They are used for party lines to connect to the same local loop.

Question 417. What is the standard bandwidth of voice channel according to CCITT recommendations?

Question 418. In facsimile technology, it is a number derived from the width-height ratio.

Question 419. A typical echo suppressor suppresses the returned echo by how much?

Question 420. It is a combination of passive components that are used to regulate the amplitude and frequency response of the voice signals.