Answer:B. Are used to create, organize, and manage databases
Explanation: Database management system (DBMS) is a computer software which is used to collect, analyse or evaluate and retrieve data from a database. It is essential to the flow of businesses or other activities of an organisation.
Examples of database management system softwares MICROSOFT ACCESS,FOXPRO,ORACLE etc all this are effective as it helps to manipulate the data structure,field names,the file formats etc.
Turn off your computer, wait 10 minutes, turn it back on. Open your browser, and go to the website. If it is still not working, I would assume that this is not a problem with your computer, but the network was not loaded properly, and should be fixed with some patience. In the mean time, you may have the day off.
Complete Question:
Recall that with the CSMA/CD protocol, the adapter waits K. 512 bit times after a collision, where K is drawn randomly. a. For first collision, if K=100, how long does the adapter wait until sensing the channel again for a 1 Mbps broadcast channel? For a 10 Mbps broadcast channel?
Answer:
a) 51.2 msec. b) 5.12 msec
Explanation:
If K=100, the time that the adapter must wait until sensing a channel after detecting a first collision, is given by the following expression:
The bit time, is just the inverse of the channel bandwidh, expressed in bits per second, so for the two instances posed by the question, we have:
a) BW = 1 Mbps = 10⁶ bps
⇒ Tw = 100*512*(1/10⁶) bps = 51.2*10⁻³ sec. = 51.2 msec
b) BW = 10 Mbps = 10⁷ bps
⇒ Tw = 100*512*(1/10⁷) bps = 5.12*10⁻³ sec. = 5.12 msec
Pictures not loading on websites Chrome – Many users reported that pictures aren't loading on websites in Chrome. To fix the problem, be sure to check your Chrome settings and disable your antivirus. Images won't load in Chrome – Sometimes this issue can appear if JavaScript is disabled in your browser.
Explanation:
Speaking of image problems, users reported the following issues:
-
Broken image icon Firefox, Internet Explorer – According to users, you might be able to experience this issue in other browsers including Firefox and Internet Explorer. If the problem appears in other browsers, the issue is related to your system or to your network configuration.
- Pictures not loading on websites Chrome – Many users reported that pictures aren’t loading on websites in Chrome. To fix the problem, be sure to check your Chrome settings and disable your antivirus.
- Images won’t load in Chrome – Sometimes this issue can appear if JavaScript is disabled in your browser. If that’s the case, simply enable JavaScript and the problem will be resolved.
- Chrome showing broken images – In some cases, extensions can lead to this problem, and if you noticed that your images are missing, simply disable or uninstall your extensions and check if that solves the problem.
- You can remove an image from the preview by clicking the thumbnail below Available images. Edit Descriptions: If you've added multiple images, click the description below each image in the preview to edit it.
- Icon in the top-right corner of the window. Select Internet Options. In the Internet Options window, click the Advanced tab. In the Settings under Multimedia, make sure there is a check in the Show Pictures check box.
