Wednesday, July 29, 2009

Dunch Noe the answers Part I of III

Beginner Quiz (30 points):

- What is the function of the [Enter] key?
Ans : Depending on the application, the common response of the [Enter] key is the carriage return. In some word processor applications, it acts as a line feed. At other times, it acts as both a carriage return and line feed depending on the application.

- How do you use the mouse to imitate the keyboard on WinXP?
Ans : In a sticky situation where your mouse keyboard fails to function, you can use the on-screen keyboard that comes with Windows. Using your mouse, go to Windows default folder via My Computer. Access the folder named System32 and look for an executable file named osk.exe. Once osk.exe is running, you can click on the on-screen keyboard to act like your keyboard. Pretty useful for laptops with damaged keys.

- How do you check your router home address without the router instructional booklet?
Ans: The default home address for your router is the IP for your router. To verify the IP of your router, simply perform ipconfig/all in command prompt or right click on the LAN connection status on your system tray near your system clock. Look for the values for your default gateway. The default gateway is the router's IP. Enter the same values in your browser and you should be able to access the router page.

- What does the MODEM do?
Ans: The MODEM (short for modulator/de-modulator) functions as a transmitter to convert data (digital information) to signal (analog information) and vice versa. Different MODEM is used for different mediums, such as cable modem, for co-axial cable, DSL modem for telephony cables etc.

- How do you force Internet Explorer to bypass the pop-up blockers using your keyboard and mouse only? (Without disabling the pop-up blocker settings)
Ans: Hold the CTRL key on your keyboard and left click with your mouse. This will bypass the pop-up blocker function on Internet Explorer and the 3rd party toolbars. Oftenly, other pop-up blockers associated with Anti-Virus or firewalls also recognise the bypass.

- How do you check a mail domain if the mail domain exists?
Ans: Perform a nslookup on the MX. If a nslookup on the MX shows that the mail domain does not exist. Check on a different network, if possible in a different country. Usually, updates on the MX should be parallel across providers, but to an extent this is true. When the replication of the MX records from the parent ISP to the child ISP is not successful, there is a possibility where the lookup failed even though the MX exists for other networks. By checking with more than one providers, especially from different countries, one can safely confirm that the mail domain does not exist if both return negative results.

- What is the default port for FTP connection?
Ans: The default port for FTP is 20 and 21.

- What is the default port for ICMP connection?
Ans: ICMP does not use port. If you put port 7, that is the default echo port which is wrong.

- What is the predefined hostname in Windows reserved for your PC?
Ans: The hostname is localhost.

- What is the minimum hardware configuration required for an IBM PC?
Ans: Power Supply Unit, Motherboard, RAM, CPU, Monitor, Video Card and Keyboard. Things that are not required - Hard disk drive, optical disk drives, mouse, sound card and casing. Many amateurs call the system unit as CPU which is wrong. The system unit comprises of the motherboard, power supply unit, video card, sound card etc in the tower casing.

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