CEN 401 HW# 2
1st Semester 1437-1438
Due date: Sunday NOV 6th 1:00 pm
Late Submission: 20% off for each day after the deadline.
You can handle the HW as a hard-copy, or submit as pdf file to LMS
Question 1 (30 points)
A train bridge is constructed across

RANDOM PROCESSES
Ref. Probability, Statistics, and Random Processes for Electrical Engineering by Alberto Leon
Chapter 9
1
Random Process (stochastic processes)
In certain random experiments, the outcome is a function of time or space.
Examples:
In a p

CEN401 Tutorial 1
By: Faya Algahtani
1. An m-bit password is required to access a system. A hacker systematically works
through all possible m-bit patterns. Let X be the number of patterns tested until the
correct password is found.
(a) Describe the sampl

Random Variable
The outcome of a random experiment need not be a number. However, we are usually
interested not in the outcome itself, but rather in some measurement or numerical attribute
of the outcome.
A random variable is defined as a function that

QUEUEING THEORY AND
SIMULATION
Semester 1, Academic Year 1437-1438
Elective Course
.
Office#: 2185
amutairi@ksu.edu.sa
Office Hours: Sun, Tue 9:00-11:00AM
Announcement
No Tutorial today.
I will use LMS(Blackboard) for course announcements and to post c

CEN448
Homework 2
NAME: SAAD ALI BIN SUBAYT
ID: 432101791
1. Referring to the textbook, define the following terms:
a. Block cipher
Block ciphers process messages in blocks or word (number of bits) at a time, then encrypted
or decrypted.
b. Stream cipher