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Question:
(a) Data on four variables are stored in a file called file1.dat. The first line of the file is the variable names f, x, y and z. Give the R commands to
(i) read the data into a dataframe called dframe,
(ii) make the variables in dframe visible from the command line,
(iii) output to screen the number of observations of the variable f,
(iv) evaluate the sample correlation between y and z, and
(v) test the hypothesis that the population from which f is drawn has mean10.
DEPLOYMENT AND IMPLEMENTING OF AN IDS The strategy for deploying IDS should consider various factors. These factors will determine the number of administrators required to insta
(a) Mention the five main security services. (b) What is a passive attack? Give an example of passive attack? (c) What four types of active attacks and mention their respecti
Problem a) Give three reasons why traditional Network Design approach is less appropriate for many of today's networks? b) The network requires of users are organized into m
QUESTION (a) Describe the difference between static routing and dynamic routing algorithms. (b) List four functions that are performed by the Cisco IOS software during b
QUESTION (a) What do you understand by a VLAN? Provide one advantage of using a VLAN. (b) What is a trunk port in a VLAN? (c) A VLAN will be created using one or more
Steganography It is a process of hiding information in use for a long time. Most popular modern version of this process hides information within files appearing to contain digit
Use the Chinese remainder theorem to evaluate x from the following simultaneous congruences: x ≡ 1 (mod 2); x ≡ 2 (mod 3); x ≡ 3 (mod 5). Calculate gcd(14526, 2568). (
Question 1 a) What is a NMS? Question 2 Explain about Structure of Management Information Question 3 A)In which UDP port number does a protocol entity receive message?
CSMA/CA Wireless needs collision avoid ness rather than collision checking. Transmitting computer puts very short codes to receiver. Receiver responds with short message getti
WHY USE AN IDS? IDS prevent from problem behaviors by increasing the perceived risk of discovery and punishment. Detect the attacks and other security violations. Detect and at
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