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Questions in computers-and-technology

[Answered] Choose the correct match for the following: (i) SM21 (ii) SM37 (iii) SM66 (iv) SM04 (a) Global Work Process Overview (b) Users List (c) Online System Logs (d) Job Scheduling (e) Background Job Overview Options: (i)-(c), (ii)-(d), (iii)-(a), (iv)-(b) (i)-(d), (ii)-(e), (iii)-(a), (iv)-(c) (i)-(c), (ii)-(e), (iii)-(a), (iv)-(b) (i)-(c), (ii)-(e), (iii)-(b), (iv)-(a)

[Answered] What is the term given to flooding the Internet with messages people probably don't want to receive? A. Emailing B. Fracking C. Spamming D. Bombing

[Answered] Given the following snippet of a Java class that simulates a bank account: ```java public class BankAccount { private double balance; // Account balance public BankAccount() { balance = 0.0; } public BankAccount(double startBalance) { balance = startBalance; } public BankAccount(String str) { balance = Double.parseDouble(str); } // other methods definition }// end of class BankAccount ``` i) Identify one characteristic of Object-Oriented Programming applied to the above methods. (1 mark) ii) Write three method headers that relate to the characteristic identified in i). (1.5 marks) iii) Briefly describe the characteristic identified in i) and relate it to the code segment. (2.5 marks)

[Answered] Select the best answer for the question. 14. Computers are typically protected from viruses by the use of A. hardware. B. passwords. C. firewalls. D. attachments.

[Answered] Which communication channel can you use to send quick, informal messages to family or friends? A. Phone call B. Work email C. Text message D. Office meeting

[Answered] Imagine your future in the next 10 years, particularly related to AI, and write a letter or email to yourself, outlining what you want to see in the future or what you want to remind yourself of.

[Answered] Anmol maintains a database of Medicines for his pharmacy using SQL to store the data. The structure of the table PHARMA is as follows: Name of the table – PHARMA Attributes: MID - numeric MNAME - character of size 20 PRICE - numeric UNITS - numeric EXPIRY - date Table: PHARMA | MID | MNAME | PRICE | UNITS | EXPIRY | |-----|------------|-------|-------|-----------| | M1 | PARACETAMOL| 12 | 120 | 2022-12-25| | M2 | CETRIZINE | 6 | 125 | 2022-10-12| | M3 | METFORMIN | 14 | 150 | 2022-05-23| | M4 | VITAMIN B-6| 12 | 120 | 2022-07-01| | M5 | VITAMIN D3 | 25 | 150 | 2022-06-30| | M6 | TELMISARTAN| 22 | 115 | 2022-02-25| (a) Write the degree and cardinality of the table PHARMA. (b) Identify the attribute best suitable to be declared as a primary key. (c) Anmol has received a new medicine to be added into his stock, but he does not know the number of UNITS. The rest of the values are: | MID | MNAME | PRICE | UNITS | EXPIRY | |-----|-----------|-------|-------|-----------| | M7 | SUCRALFATE| 17 | | 2022-03-20| Write the SQL command to add this medicine without the UNITS value. (d) Anmol wants to change the name of the attribute UNITS to QUANTITY in the table PHARMA. Which command will he use? (i) UPDATE (ii) DROP TABLE (iii) CREATE TABLE (iv) ALTER TABLE (e) Anmol wants to increase the PRICE of all medicines by 5. Which command will he use? (i) UPDATE SET (ii) INCREASE BY (iii) ALTER TABLE (iv) INSERT INTO

[Answered] What numbers are included in the binary number system? A. $1-9$ B. $1-7$ C. $0-1$ D. $0-8$

[Answered] Which one is a browser? A. ChatGPT B. Chrome C. Brade D. Google

[Answered] In Internet terms, what is an "avatar"? A. Yahoo's Logo B. Online Image Or Representation Of Person C. Personal Profile Of ID D. Smiley Face