ASS 4 secu 422

Give an example of an interface module used in a communications system, then explain its basic operation, and the specific function of each of the elements/components of the module.

Please solve this exam style question, clearly and simply.

What are the major components of a SCADA system in a Nuclear Power Plant? Provide its functions. State how does a SCADA system in a Nuclear Power Plant works.

4- A network administrator is troubleshooting connectivity issues on a server. Using a tester, the administrator notices that the signals generated by the server NIC are distorted and not usable. In which layer of the OSI model is the error categorized? c) data link layer b) physical layer d) presentation layer network printing using a print server 5- What service is provided by SMTP? network layer a) Allows remote access to network devices and servers. b) Uses encryption to provide secure remote access to network devices and servers. c) Allows clients to send email to a mail server and the servers to send email to other servers. d) An application that allows real-time chatting among remote users.

ii. Explain in your own words the different high speed protocols which are used by microcontrollers to communicate with peripheral devices. Give details of the connections and waveforms you would expect to see on these connections.

( Answers to be solved with proper steps and uploaded within one file into Moodle) c. Construct the truth table and then determine the Minterms and Maxterms for a given system after determining the out put X from the given circuit diagram. A

You are tasked with designing an embedded system using an ATmega32 microcontroller. The system should perform the following tasks: 2. 7-Segment Cathode Display Control: a. Connect two 7-segment cathode displays to the microcontroller. b. Implement the code to show '7.3' for 2 seconds using the concept of multiplexing. Continue running the code as long as the ATmega32 is powered on. To be noted that, the crystal frequency is 16MHz.

Create an Arduino program with the following condition. Print the states of the potentiometer and LED in the Serial monitor. A. Turns LED 1 on and LED 2 off when the pot is rotated between 25% and 50% B. Turns LED 1 off and LED 2 on when the pot is rotated between 50% and 75% C. Flashes LED 1 at 5Hz and turns, LED 2 off when the pot is rotated less than 25% D. Turns LED 1 off and flashes LED 2 at 5Hz when the pot is rotated more than 75%

MAKE A FLOW CHART AND EXPLAIN

7. At laundromats, using coins and/or pre-paid cards will turn on a dryer machine which consists of a heating source and a motor that turns the inner cylindrical chamber where the wet fabrics are placed. Once a certain amount of time has passed, the dryer will automatically turn off. a) Please create a combination logic gate using AND, NOT and/or OR logic gates that would simulate the logic gate circuit necessary to produce the same outcome as a timed dryer machine. Be sure to properly label and explain your logic gate system. b) Please create a combination logic gate using only NAND logic gates that would simulate the logic gate circuit necessary to produce the same outcome as a timed dryer machine. Be sure to properly label and explain your logic gate system.

Q27. a) What do you mean by PD controller ?.Draw the electronic circuit of PD controller and also write the electronic output equation and General controller output equation . b) Draw the symbol of NOR gate .Also write the Truth table and Ladder diagram of NOR.

What is a GOOSE message? For what purposes is it used and how is the message delivered? What are its shortcomings in terms of cybersecurity?

Wire a circuit using various components such as j-k flip flops, gates, etc to make a cycle where 3 LEDS blink rapidly twice and then a short pause followed by 3 LEDS rapidly blinking again (same 3 LEDS). (a repeated cycle).

Give at least two processes (1 industrial plant and 1 Power plant) where a SCADA system is applied or used. Identify the major components of a SCADA system on those processes that you have chosen and explain each process. Show pictures for each major component involved.

Which of the following are part of the purpose of a network protocol. The answer could be more than one

•An ISP is granted a block of addresses starting with 190.100.0.0/16. The ISP needs to distribute these addresses to two groups of customers as follows: •The first group has 64 customers; each needs 128 IP addresses. •The third group has 128 customers; each needs 64 IP addresses. • Write at least the first and last IP addresses for the first two and last two customers in each group.

Solve these three MCQs. No need to explain the MCQs. Reference book Barry B Brey 8th edition.    1) During the DMA bus cycle the system bus is driven by the DMA controller, not by the MPUSingle choice. a) No b) Yes 2) There are _______ banks of data memory in 16F877.Single choice. a) 3 b) 4 c) 6 d) 2 3)There are total of ___________ instructions in PIC 16F877.Single choice. a) 39 b) 31 c) 43 d) 35

What are the operations that can be performed via SCADA? What are the data that can be monitored in SCADA? Explain why SCADA should be preferred.

Q. No 3. In a Public Switch Telephone Network (PSTN), how the analog speech signal is converted to digital signal in the PCM? Also highlight the main functions of the given parts in the PSTN figure. Public Switched Trelephone Network PSTN W7CLOUD.COM Central Office

Can you write the answer with assembly code using 8051 architecture?

no handwritten,  explanation  in detail for QPSK as mentioned. don't copy  paste from other sites

Subject: Computer Networks Note: Please answer in own words. copy from internet will very unhelpful for me. Question:  Explain the timing diagrams of two different connection establishment mechanisms of TCP.

44 For which of the following should a PV system owner expect maintenance costs over the life of the system? Module replacement Inverter replacement System warranties Polarity testing Domain: Sales and Economics 45 What is the MAXIMUM number of modules allowed in a string with the following module specifications and conditions? Voç: 80.8 Ymp: 62.7 Temperature coefficient (Voc): -0.28%/" C Maximum system voltage: 600V Record cold temperature at the site: -10 C 6. 7 8. 46 Which is the BEST tool to use to verify the open-circuit voltage of a PV module? Ammeter Megohmmeter Multimeter Oscilloscope

Question is under attachment.

1) what is vas the operation of the FET? (off)? How could it effects 2)What is IDS?

Similar to the GTO, IGBT can be designed to block negative voltage .... What does this sentence mean?What is the advantage block negative voltage??

Explain the phenomenon aliasing, when it is observed and how it can be prevented

Q. 3 Look online resources for Intel 8255A Programmable Peripheral Interface. i. Draw neat pin diagram of 8255A. ii. Briefly explain its usage. (not more than 2 statements) Answer you given me what book you used

Which of the following statements is/are TRUE? (Choose all that apply) Select one or more: a. The noise margin of a gate indicates the amount of noise it adds to system. b. Glitches always occur when there is unbalanced delays in inputs of gates. c. The propagation delay of a gate varies with its actual fan-out. d. The propagation delay of gates within a digital system affects the maximum frequency that the system can operate.