![EBK A GUIDE TO SQL](https://www.bartleby.com/isbn_cover_images/8220103671682/8220103671682_largeCoverImage.jpg)
EBK A GUIDE TO SQL
9th Edition
ISBN: 8220103671682
Author: Last
Publisher: CENGAGE L
expand_more
expand_more
format_list_bulleted
Question
Chapter 4, Problem 4BCE
To determine
To Write SQL query to drop an index named ItemIndex3 from the Tasks table.
Expert Solution & Answer
![Check Mark](/static/check-mark.png)
Want to see the full answer?
Check out a sample textbook solution![Blurred answer](/static/blurred-answer.jpg)
Students have asked these similar questions
COMPUTER NETWORKS II, LAB-2-WORKSHEET
Basic Cisco Device Commands
Objectives
1.
Secure a Cisco device using passwords.
2. Enable remote access with Telnet and SSH.
3. Create users with different privilege levels.
4.
Use custom privilege levels to limit user commands.
5. Learn how to reboot a Cisco device.
Part 1: Introduction to Basic Cisco Commands
Cisco devices allow network administrators to control access and security using the Command-Line
Interface (CLI).
•
Console Password Protection: Secures physical device access.
Telnet & SSH: Enable remote login.
• User Management: Assign different access levels to users.
•
Custom Privilege Levels: Restrict users to specific commands..
Part 2: Topology
Devices:
•
1 Cisco Router
•
1 Cisco Switch
1 PC (for configuration)
Connections:
•
•
Connect the PC to the router using a console cable.
Connect the router to the switch using a straight-through cable.
Explain to me in a practical way so
that I understand what is
happening
ip ssh version 2
4.
Create a user for SSH access:
username admin privilege 15 password admin123
5. Apply SSH to the VTY lines:
line vty 0 4
transport input ssh
login local
exit
6.
Test SSH from another device:
ssh -l admin 192.168.1.1
Step 4: Manage User Privileges
1. Create a user with limited privileges:
username user1 privilege 1 password userpass
2. Assign a custom privilege level (example: level 5):
username guest privilege 5 password guestpass
3. Restrict the user to only three commands:
privilege exec level 5 show ip interface brief
privilege exec level 5 show clock
privilege exec level 5 show version
4. Apply the privilege level to VTY users:
line vty 04
privilege level 5
Step 5: Reboot the Device
1. Save the configuration before rebooting:
Explain to me in a practical way so
that I understand what is
happening
2. Plot the expected output voltage waveforms for the given circuits.
Assuming V=5v and VON 0.7v for each diode.
Full-Wave Bridge Rectifier
Vin
out
Chapter 4 Solutions
EBK A GUIDE TO SQL
Ch. 4 - Prob. 1RQCh. 4 - Prob. 2RQCh. 4 - Prob. 3RQCh. 4 - Prob. 4RQCh. 4 - Prob. 5RQCh. 4 - Prob. 6RQCh. 4 - Prob. 7RQCh. 4 - Prob. 8RQCh. 4 - Prob. 9RQCh. 4 - Prob. 10RQ
Ch. 4 - Prob. 11RQCh. 4 - Prob. 12RQCh. 4 - Prob. 13RQCh. 4 - Prob. 14RQCh. 4 - Prob. 15RQCh. 4 - Prob. 16RQCh. 4 - Prob. 17RQCh. 4 - Prob. 18RQCh. 4 - Prob. 1BCECh. 4 - Prob. 2BCECh. 4 - Prob. 3BCECh. 4 - Prob. 4BCECh. 4 - Prob. 5BCECh. 4 - Prob. 6BCECh. 4 - Prob. 7BCECh. 4 - Prob. 8BCECh. 4 - Prob. 9BCECh. 4 - Prob. 10BCECh. 4 - Prob. 11BCECh. 4 - Prob. 12BCECh. 4 - Prob. 1CATCCh. 4 - Prob. 2CATCCh. 4 - Prob. 3CATCCh. 4 - Prob. 4CATCCh. 4 - Prob. 5CATCCh. 4 - Prob. 6CATCCh. 4 - Prob. 7CATCCh. 4 - Prob. 8CATCCh. 4 - Prob. 9CATCCh. 4 - Prob. 10CATCCh. 4 - Prob. 11CATCCh. 4 - Prob. 12CATCCh. 4 - Prob. 13CATCCh. 4 - Prob. 14CATCCh. 4 - Prob. 1SPTCCh. 4 - Prob. 2SPTCCh. 4 - Prob. 3SPTCCh. 4 - Prob. 4SPTCCh. 4 - Prob. 5SPTCCh. 4 - Prob. 6SPTCCh. 4 - Prob. 7SPTCCh. 4 - Prob. 8SPTCCh. 4 - Prob. 9SPTCCh. 4 - Prob. 10SPTCCh. 4 - Prob. 11SPTCCh. 4 - Prob. 12SPTC
Knowledge Booster
Similar questions
- Eng por' write memory 2. reload Restart the router: 3. Confirm reboot by typing yes when prompted. Part 4: Verification and Monitoring 1. Check Users Logged In: show users 2. Verify SSH Status: show ip ssh 3. Confirm Privilege Levels: show privilege 4. Test the Guest User's Limited Access: о Login as guest о Try running show running-config (should be denied) Run show ip interface brief (should be allowed) Explain to me in a practical way so that I understand what is happeningarrow_forwardPart 3: Steps to Configure Basic Commands Step 1: Set a Password for Console Access 1. Enter privileged EXEC mode: enable 2. Enter global configuration mode: configure terminal 3. Secure console access: line console O password cisco123 login exit Step 2: Configure Telnet Access 1. Enable Telnet: line vty 04 password telnet123 login exit 2. Verify Telnet access by connecting from another device. Step 3: Configure SSH for Secure Remote Access 1. Set a domain name (required for SSH): ip domain-name netlab.uok 2. Generate RSA keys: crypto key generate rsa ° Choose a 1024-bit key or higher. 3. Enable SSH version 2: Explain to me in a practical way so that I understand what is happeningarrow_forward6.19 Consider a bar of p-type silicon that is uniformly doped to a value of N = 2 x 101 cm³ at 7=300 K. The applied electric field is zero. A light source is incident on the end of the semiconductor as shown in Figure P6.19. The steady-state concentration of excess carriers generated at x = 0 is 8p(0) = Sn(0) = 2 x 104 cm³. Assume the following Light p type x=0 Figure P6.19 | Figure for Problems 6.19 and 6.21. parameters: μ = 1200 cm²/V-s, μp = 400 cm²/V-s, T = 10-6 s, and 7p = 5 × 10-7 s. Neglecting surface effects, (a) determine the steady-state excess electron and hole concentrations as a function of distance into the semiconductor, and (b) calculate the steady-state electron and hole diffusion current densities as a function of distance into the semiconductor.arrow_forward
- *6.24 Consider the semiconductor described in Problem 6.19. Assume a constant electric field E, is applied in the +x direction. (a) Derive the expression for the steady-state excess electron concentration. (Assume the solution is of the form ea.) (b) Plot on versus x for (i) Eo = 0 and (ii) E₁ = 12 V/cm. (c) Explain the general characteristics of the two curves plotted in part (b).arrow_forward6.6 Consider a one-dimensional hole flux as shown in Figure 6.4. If the generation rate of holes in this differential volume is gp = 100 cm³-s¹ and the recombination rate is 2 × 1019 cm³-s, what must be the gradient in the particle current density to maintain a steady-state hole concentration?arrow_forward6.4 (a) A sample of semiconductor has a cross-sectional area of 1 cm² and a thickness of 0.1 cm. Determine the number of electron-hole pairs that are generated per unit volume per unit time by the uniform absorption of 1 watt of light at a wavelength of 6300 Å. Assume each photon creates one electron-hole pair. (b) If the excess minority carrier lifetime is 10 μs, what is the steady-state excess carrier concentration?arrow_forward
- 6.1 Consider silicon at 7 = 300 K that is doped with donor impurity atoms to a concentra- tion of Na = 5 x 105 cm³. The excess carrier lifetime is 2 x 10-'s. (a) Determine the thermal equilibrium recombination rate of holes. (b) Excess carriers are generated such that Sn = p = 104 cm³. What is the recombination rate of holes for this condition?arrow_forward6.18 A semiconductor is uniformly doped with 107 cm³ acceptor atoms and has the fol- lowing properties: D = 27 cm²/s, D = 12 cm²/s, T = 5 × 10-7 s, and 7po = 10-7 s. An external source has been turned on for 1 <0 producing a uniform concentration of excess carriers at a generation rate of g = 10 cm³ s. The source turns off at time 1 = 0 and back on at time = 2 × 10-6 s. (a) Derive the expressions for the excess carrier concentration as a function of time for 01, (b) Determine the value of excess carrier concentration at (i) 1 = 0, (ii) 1 = 2 × 10-6 s, and (iii) t = x. (c) Plot the excess carrier concentration as a function of time.arrow_forwardWhat value is left in W0 (X0) after the following code is run (Remember ARMv8 is little endian)? SUB X4, X4, X4MOVZ X1, 0x1234, LSL 0ADD X2, XZR, XZRADD X10, XZR, XZRADD X0, XZR, XZRSTUR X1, [X2, 0]LDURB W0, [X2, 6] Note, STURB and LDURB operate on bytes instead of words. Also remember that W0 is the lower half of the X0 register. Write the answer in hex with a 0x in front and all leading 0's removed. It is not 0x0arrow_forward
- cases: Compare the Poisson approximation with the correct binomial probability for the following a. P{X=2} when n = 8, p = 0.2 b. P{X 5} when n = 10, p = 0.5 c. P{X=0} when n = 20, p = 0.2 d. P{X=3} when n = 9, p = 0.1arrow_forward4. Suppose that the average number of cars abandoned weekly on a certain highway is λ = 1.68. Approximate the probability that there will be (a) No abandoned cars in the next week. (b) At least 2 abandoned cars in the next week. Hint: Model the problem with a Poisson random variable.arrow_forwardod The probability mass function of a discrete random variable X is given by P(X = 1) = {} x=1,2,3,4 10 otherwise (a) Draw the probability mass function (PMF) of this random variable. (b) Draw the cumulative distribution function (CDF) of this random variable. (c) What is P{2< x <4}? Write it in terms of the CDF. (d) What is E[X]? (e) What is Var[X]? (f) What is E[X (6-X)]? (g) What is Var[3X - 2]?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Computer Networking: A Top-Down Approach (7th Edi...Computer EngineeringISBN:9780133594140Author:James Kurose, Keith RossPublisher:PEARSONComputer Organization and Design MIPS Edition, Fi...Computer EngineeringISBN:9780124077263Author:David A. Patterson, John L. HennessyPublisher:Elsevier ScienceNetwork+ Guide to Networks (MindTap Course List)Computer EngineeringISBN:9781337569330Author:Jill West, Tamara Dean, Jean AndrewsPublisher:Cengage Learning
- Concepts of Database ManagementComputer EngineeringISBN:9781337093422Author:Joy L. Starks, Philip J. Pratt, Mary Z. LastPublisher:Cengage LearningPrelude to ProgrammingComputer EngineeringISBN:9780133750423Author:VENIT, StewartPublisher:Pearson EducationSc Business Data Communications and Networking, T...Computer EngineeringISBN:9781119368830Author:FITZGERALDPublisher:WILEY
![Text book image](https://www.bartleby.com/isbn_cover_images/9780133594140/9780133594140_smallCoverImage.gif)
Computer Networking: A Top-Down Approach (7th Edi...
Computer Engineering
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:PEARSON
![Text book image](https://www.bartleby.com/isbn_cover_images/9780124077263/9780124077263_smallCoverImage.gif)
Computer Organization and Design MIPS Edition, Fi...
Computer Engineering
ISBN:9780124077263
Author:David A. Patterson, John L. Hennessy
Publisher:Elsevier Science
![Text book image](https://www.bartleby.com/isbn_cover_images/9781337569330/9781337569330_smallCoverImage.gif)
Network+ Guide to Networks (MindTap Course List)
Computer Engineering
ISBN:9781337569330
Author:Jill West, Tamara Dean, Jean Andrews
Publisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781337093422/9781337093422_smallCoverImage.gif)
Concepts of Database Management
Computer Engineering
ISBN:9781337093422
Author:Joy L. Starks, Philip J. Pratt, Mary Z. Last
Publisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9780133750423/9780133750423_smallCoverImage.jpg)
Prelude to Programming
Computer Engineering
ISBN:9780133750423
Author:VENIT, Stewart
Publisher:Pearson Education
![Text book image](https://www.bartleby.com/isbn_cover_images/9781119368830/9781119368830_smallCoverImage.gif)
Sc Business Data Communications and Networking, T...
Computer Engineering
ISBN:9781119368830
Author:FITZGERALD
Publisher:WILEY