Multiple choice 1 if the generator polynomial is x3 x2 x t

Multiple choice

1. if the generator polynomial is x^3 + x^2 + x, the corresponding binary divisor is [chapter 10]
a. 1010
b. 1110
c. 1011
d. 1001


2. Wireless data transmission can be through: [chapter 7]
A. microwaves
B. traditional ethernet
C.   coaxial cable
D. twisted pair

3.    [Chapter 4] Which are three types of PCM [pulse code modulation] sampling
A.       forced, natural, and delta
B.    Ideal, forced, and frequency
C.    Ideal, natural, flat-top
D.    Ideal, requisite and polar

4. IN the Stop-And-Wait ARQ, we use sequence numbers based on what to number the frames? [chapter 11]
a. polynomial arithmetic
b. hexadecimal numbering
c. binary arithmetic
d. modulo-2 arithmetic

5.    The data link layer layer: [chapter 2]
A.    Is a delimiter is needed to define the boundary of the two frames
B.    transforms the physical layer, a raw transmission facility, to a reliable link.
C.    Sends each packet to the correct computer
D.    Is responsible for the delivery of a message from one process to another

6. ARQ stands for _______. [chapter 11]
    A)    Automatic repeat request
    B)    Automatic repeat quantization
    C)    Automatic retransmission request
    D)    Acknowledge repeat request

7.     Mail services are available to network users through the _______ layer. [chapter 1]
    A)    Data link
    B)    Transport
    C)    Physical
    D)    Application

8. In the cyclic redundancy checking, the divisor is _______ the CRC. [chapter 10]
    A)    The same size as
    B)    one bit more than
    C)    one bit less than
    D)    none of the above

9. [chapter 8] Circuit switching takes place at the ________ layer.
    A)    data line
    B)    physical
    C)    network
    D)    transport

10 . [chapter 6] Which multiplexing technique transmits analog signals?
    A)    FDM
    B)    WDM
    C)    TDM
    D)    (a) and (b)

Solution

1. Generator polynomial is =x^3 + x^2 + x=1*(x^3)+1*(x^2)+1*(x^1)+0*(x^0)

So the corresponding binary divisor is=1110

Answer:b

2. traditional ethernet, coaxial cable, twisted pair are the wired transmission media.

So micrwaves is the wireless transmission media.

Answer:A

3. Answer:C