Final

Question 1

To perform a high level format on the hard drive and make it bootable, what syntax would you use?

Answer 1

Format C:/S

Question 2

How may bits are used in ASCII code, assuming no parity bit is used

Answer 2

7

Question 3

If the highest frequency to be sampled is 3kHz, what is the minimum acceptable sampling rate?

Answer 3

6kHz.

Question 4

What is the form of multiplexing in which data from different users is given different time slots within a data frame called?

Answer 4

Statistic Time Division Multiplexing (STDM)

Question 5

Which part of the instruction tells the microprocessor what operation is to be performed?

Answer 5

opcode

Question 6

OSI

Answer 6

Application Layer 
Presentation
Session
transport
network
data link 
Physical

Question 7

TCP/IP

Answer 7

Application
Transport
Internet
Network Access Layer

Question 8

What is VoIP

Answer 8

Voice Over IP

Question 9

Data Link

Answer 9

Media Access

Logical Link

Question 10

What is the correct order of phases of A PLC program scan

Answer 10

Input Scan
Execute Program
Output Scan

Question 11

What are the characteristics of BJT common emitter (CE) amp

Answer 11

the CE has high power gain, good driver for an audio speaker and inverts the output signal

Question 12

Characteristics of BJT common base (CB) amp

Answer 12

highest ouptut impedance, lowest current gain, and would be used to connect and antenna to an amplifier system

Question 13

Characteristics of BJT (CC) amp

Answer 13

has voltage gain of 1

Question 14

Among the three amp configuration CC, CB and CE, which has highest power gain

Answer 14

CE

Question 15

Among the three amp configuration CC, CB and CE, highest input impedance

Answer 15

CB

Question 16

Among the three amp configuration CC, CB and CE, has the lowest current gain

Answer 16

CB

Question 17

Among the three amp configuration CC, CB and CE, would be a good driver for an audio speaker

Answer 17

CE

Question 18

Among the three amp configuration CC, CB and CE, which configuration would probably be used to connect an antenna

Answer 18

CB

Question 19

Among the three amp configuration CC, CB and CE, which inverts the output signal

Answer 19

CE

Question 20

Among the three amp configuration CC, CB and CE, has voltage gain of 1

Answer 20

CC

Question 21

Why is serial data more mainstream than parallel data transfer

Answer 21

cheaper

Question 22

In a superhetrerodyne receiver what are the inputs to the mixer stage

Answer 22

RF IF local oscillator

Frequency

Question 23

In a fm modulator what does the amplitude of intelligence signal determine

Answer 23

frequency deviation rate

Question 24

What happen when electromagnetic waves pass from a medium of one density into another medium ticker density

Answer 24

optical density reftation

Question 25

s/n ration

Answer 25

s^2/n^2=sum and than 10 log (sum) deibels

Question 26

what device can be used as mixer in communication circiuts

Answer 26

diodes

Question 27

which rx uses dectector

Answer 27

anomaly detection

Question 28

which rx uses a discrimator

Answer 28

radio detector

Question 29

AM RX typical IF

Answer 29

455kHz

Question 30

FM RX typical IF

Answer 30

10.7MHZ

Question 31

Which file is also know as machine cide and is utilized in programming microcontrollers

Answer 31

Assembly Language