Consider two relations Reserves and Sailors and statistical data are as follows: Reserves: Each tuple is 40 bytes long, 100 tuples per page, 1000 pages. tuple hostions Re - Let's say there are 100 boats. • Sailors: - Each tuple is 50 bytes long, 80 tuples per page, 500 pages. - Let's say there are 10 different ratings. No Indexes are available for both relations. Compare the cost of two different query plans for the following query: SELECT S.sname FROM Reserves R, Sailors S WHERE R.sid=S.sid AND R.bid=100 AND S.rating>5

Q: 1. L = { anbkanbk | n, k ≥ 0} 2. D = {0n #02 #03n| n ≥ 0} 3. C = {abick |0 ≤ i ≤j≤k}

A: As per our guidelines only 3 sub parts will be answered. So, please repost the remaining questions…

Q: What component of a piece of hardware makes it possible for a device to connect physically to a…

A: A virtual logical network appears when users log into their computers and check their network page,…

Q: What do you call the parts of the operating system that are stored in the computer's memory? How…

A: Given: The kernel, the computer programmer at the center of the operating system, controls…

Q: Firewalls protect computers from intrusions. Using packet filtering software requires certain…

A: Introduction: By limiting network traffic, a firewall may help safeguard your computer and data.…

Q: An external firewall protects your PC. Follow these rules while using packet filtering software.

A: The solution to the given question is: By regulating network traffic , firewalls can help protect…

Q: I need help with this C++ data structure course - Show the steps for sorting the following heaps…

A: As per the requirement program is developed. Heap Sort: The heap sort is comparison dependent…

Q: What component of a piece of hardware makes it possible for a device to connect physically to a…

A: Hubs, bridges and switches allow multiple devices to connect to the router and they transfer data to…

Q: Observe the internet's development and technological foundations?

A: The Internet is a vast network that connects computers all over the world.

Q: Give an explanation as to why the screen of a computer monitor that makes use of LCD technology has…

A: Introduction These displays are small and light, taking up less space. They utilize less electricity…

Q: Write an OCTAVE program to plot the signal given below. P= Pmax sin(2πft); where Pmax = 10 MW, f=60…

A: Write an OCTAVE program to plot the signal given below. P= Pmax sin(2πft); where Pmax = 10 MW, f=60…

Q: An operating system is a resource allocator, which may be better understood with the help of an…

A: Given: operating System is a resource allocator.

Q: Cite an error in this script * #include using namespace std; int main() B{ int a="99"; float…

A:

Q: What are the repercussions that occur when the primary memory that is available is not distributed…

A: Foundation: Multilevel paging strategies are also included in operating systems, which increase the…

Q: What distinguishes computer and telephone networks from the many kinds of networks already…

A: Design:

Q: What are some of the things that you might put in the abstract for the purpose of developing your…

A: Abstraction: A piece of software that conceals low-level information in favour of a set of…

Q: Describe the two competing perspectives on operating system kernel design that exist today.

A: The kernel is the most crucial component of an operating system, as it is in charge of all computer…

Q: When describing procedures that are not included in a systems analysis, you can find it helpful to…

A: Given: In this lesson, you will  a learn how to use structured English to describe processes that…

Q: In class, we have defined the hypothesis for univariate linear regression as he(x) = 00 + 0₁x and…

A: Answer

Q: Consider a purple rod of 1 m length with 360 nC of charge. The edge of the rod is located at m. The…

A:

Q: Please follow the steps to complete JAVA PROGRAM Create a class, EmployeeException, that has the…

A: Code with output in the following steps:

Q: In order for a network to operate effectively and efficiently, what are the three components that it…

A: Simplification: Performance, dependability, and security are the three most crucial characteristics…

Q: Write a python program that computes the amount of calories burned when you run. Your program should…

A: Use an if-else ladder to find the MET with respect to speed

Q: Using OpenGL develop a C code that a) Translate (move) the whole object ( the star, the circle and…

A: Translation & Rotation   we positioned each of the shapes by defining their vertices with…

Q: Write a complete program that will read 50 grade values (numerical values) from user and store them…

A: The complete JAVA code is given below with code and output screenshot

Q: Observe the internet's development and technological foundations?

A: The following timeline briefly illustrates the evolution of internet from early days of PC to now…

Q: Add the necessary code (JavaScript, HTML, and/or CSS) to generate a set of lotto numbers. Your page…

A: I have  provided  HTML  CODE ( having  internal  CSS  and  internal  JS  also )  along  with  CODE…

Q: Design an 8085 microprocessor based system to test the two inputs XOR gate ICs as in figure. O IC…

A:

Q: What happens if a user tries to add data to a database in a way that breaks an enabled constraint on…

A: Enabling Constraint: When a constraint is enabled, no row can be entered into the table that…

Q: Describe the two competing perspectives on operating system kernel design that exist today.

A:

Q: Is there a non-free Linux firewall mentioned in the presentation that you can explain in a few…

A:

Q: Write the exact output that you expect to see on the screen when the indicated statements are…

A: This is a java based question.

Q: computers. In contrast to PCs, embedded devices can only run a single piece of software

A: True There is a difference between embedded systems and general-purpose computers. In contrast to…

Q: A text message is stored in memory starting from address F0000h. Write a subroutine program to check…

A: sub cmp_message(FOO0Oh, E) { if(FOO0Oh == "NCMP"){ E = FFh;}else{ E = 0;} }

Q: On a Windows Server-based system, what kind of firewall software is installed?

A: The hardware and operating system must be chosen by the user in order to utilize a software…

Q: 1 #include 2 using namespace std; int main() 3 4 { 5 int const k=12; 6 int m=67, v=k+m; 7 K=K+2; 8…

A: const: It is a keyword used in c++ to declare a variable as constant means that we can not change it…

Q: Using the C++ STL and assuming you have a vector of integers called V1, a) Write a statement to…

A: The above question is solved in step 2:-

Q: Express the Boolean function F = y + x z as a sum of minterms. Find the following: (a) List the…

A: As per our guidelines, only 3 sub parts will be answered. So, please repost the remaining questions…

Q: EL is not cached ose that three C DNS server vis d third DNS co

A: Total elapsed time= RTT0+RTT1+RTT2+RTTn Total response time for this will be= 2*RTTHTTP = 9 msecs +…

Q: Python  Use wine dataset Sort the values of multiple columns from lowest to highest

A: Lets see the solution in the next steps

Q: Three client channels, one with a bits of 200 Kbps, 400 Kbps and 800 Kt ps are to be multiplexed a)…

A: We can allocate one slot to the first client channel and one slot to second client channel and one…

Q: Write the exact output that you expect to see on the screen when the indic int[] a = { 5, 10, 15,…

A: Given:

Q: Differentiate between Scope and Linkage in c++

A: Scope: In general, the scope is defined as the extent up to which something can be worked with. In…

Q: What is the output of this script?* #include using namespace std; int main() .8{ int m12=20;…

A: THe output of above pogram is answered below step

Q: What are some of the things that you might put in the abstract for the purpose of developing your…

A: Abstraction: A piece of software that conceals low-level information in favour of a set of…

Q: Consider a purple rod of 1 m length with 360 nC of charge. The edge of the rod is located at m. The…

A:

Q: 3. Write only the numeric values of a file to corresponding line of another file for each line in…

A: Code: import java.io.*; import java.util.*;public class MyClass {    public static void main(String…

Q: Write a program (in Java or C++), allowing to: • Create a folder "Main" Create a file in the folder…

A: According to the information given:- we have to follow the instruction in order to get desired…

Q: When S2 is selected, the data out will be the hexadecimal number

A: when s2 is selected, the data out will be the hexadecimal number...

Q: 3) Write R codes to create the folllowing graph for random data vector x. x <-rchisq(1000, df=5)…

A: Solution::   x &lt;- rchisq(1000,df=5)   # code to plot histogram hist(x, col="grey",…

Q: solve class course and payment in jave

A: Program Approach:   1- As mentioned in the assignment solve course &amp; payment class using java or…