N-GEN Communications Web-based Seminars ©NGCS

Seminar - An Overview of Communications Technologies

Module 2 - Data Communications Basics and Legacy Technologies                                               Slide 43 of 45  _________________                                                                                  __________

Quiz for Module2

1. Which of the following factors effect the real-time information communications?

    a. Transmission line delay

    b. Information digitization

    c. Storage of information in the network switches

    d. All the above 

2. Multi-media information is converted into the following before transmitting over the network

    a. Analogue

    b. Digital

    c. Cell

    d. Packet

3. True or false:

    a. Two - wire transmission on the PSTN allows full - duplex transmission

    b. A voice channel bandwidth is 8 K Hz

    c. Frequency modulation technique is used for high speed data transmission

    d. A T-1 line carries 24 DS-0 channels

4. Which of the following factors impact data transmission over an optical fiber:

    a. Noise

    b. High voltage lines

    c. Bending of the optical fiber

    d. Impurities in the optical fiber

5. The standard first-level digital multiplex system in North America operates at:

    a. 2.048 M bps

    b. 44.736 M bps

    c. 1.544 M bps

    d. 9600 bps

6. RS-232-C, RS-449 and V.24 are examples of:

    a. Standards of various types of transmission channels

    b. Standards for interfaces between terminals and modems

    c. Standards for interface between modem and transmission facilities

    d. Standards for end-to-end performance of data communications systems

7. The X.25 standard covers how many OSI layers:

    a. Three

    b. Four     

    c. Seven

    d. None

8. The ISDN Basic Service transmits how many bits per sec:

    a. 64 K bps

    b. 144 K bps   

    c. 1.536 M bps

    d. 2400 bps

9. Which of the following is not considered limitations of the legacy data networking?

    a. Available bandwidth

    b. Reach    

    c. Multi-media transmission

    d. Analogue transmission

10. Which of the following technologies are suited for the century applications:

    a. ATM

    b. TCP / IP

    c. 10 M bps Ethernet

    b. H.323

_________________                                                                                  __________

         Please complete the quiz for Module 2 without going back and forward on the Module 2 slides.
        Once  completed then  go  to the next  slide,  slide  44,  to  check the answers to  the  Module 2 quiz.