Find the value of Vth from the below circuit.

A. 1 v
B. 2 v
C. 3 v
D. 4 v

Find V1 and V2.

A. -68.6 v, 114.3 v
B. 68.6 v, -114.3 v
C. 114.3 v, -68.6 v
D. -114.3 v, 68.6 v

A 2-port network is driven by a source Vs = 100 V in series with 5 ohm, and terminated in a 25 ohm resistor. The impedance parameters are The Thevenin equivalent circuit presented to the 25 ohm resistor is

A. 80 v, 2.8 ohm
B. 160 v, 6.8 ohm
C. 100 v, 2.4 ohm
D. 120 v, 6.4 ohm

A 2-port resistive network satisfy the condition A = D = 3/2B = 4/3C. The z11 of the network is

A. 46115
B. 46085
C. 46056
D. 46083

The [y] parameter for a 2-port network and the network itself are given below. The value of Vo/vs is _______

A. 48274
B. 46038
C. 48611
D. 46039

[y] = ?

A. \(\begin{bmatrix} \frac{19}{10} & \frac{-9}{10}\\ -\frac{9}{10} & \frac{31}{10} \end{bmatrix}\)
B. \(\begin{bmatrix} \frac{19}{10} & \frac{-7}{10}\\ -\frac{7}{10} & \frac{31}{10} \end{bmatrix}\)
C. \(\begin{bmatrix} \frac{19}{10} & \frac{9}{10}\\ \frac{9}{10} & \frac{31}{10} \end{bmatrix}\)
D. \(\begin{bmatrix} \frac{19}{10} & \frac{7}{10}\\ \frac{7}{10} & \frac{31}{10} \end{bmatrix}\)

[h] = ?

A. \(\begin{bmatrix} 4 & \frac{3}{2}\\ -2 & \frac{1}{2} \end{bmatrix}\)
B. \(\begin{bmatrix} -2 & \frac{1}{2}\\ 4 & \frac{3}{2} \end{bmatrix}\)
C. \(\begin{bmatrix} 4 & -\frac{3}{2}\\ 2 & \frac{1}{2} \end{bmatrix}\)
D. \(\begin{bmatrix} 2 & \frac{1}{2}\\ 4 & -\frac{3}{2} \end{bmatrix}\)

[T] = ?

A. \(\begin{bmatrix} 0.35 & -1\\ 2 & -3.33 \end{bmatrix}\)
B. \(\begin{bmatrix} 0.35 & -1\\ -2 & -3.33 \end{bmatrix}\)
C. \(\begin{bmatrix} 2 & 3.33\\ 0.35 & 1 \end{bmatrix}\)
D. \(\begin{bmatrix} 0.35 & 1\\ 2 & 3.33 \end{bmatrix}\)

What is the role of Key Distribution Center?

A. It is used to distribute keys to everyone in world
B. It intended to reduce the risks inherent in exchanging keys
C. All of the mentioned
D. None of the mentioned

Which two of the following are authentication algorithms?

A. Mac
B. Aes
C. Das
D. Digital-signature