Computer Interview Questions and Answers
Question - 61 : - How can I print to a printer connected to an Airport Base Station ?
Answer - 61 : - The Airport Extreme and Airport Express Base Stations both have a built-in USB port that allows you to connect a printer. Whatever printer you decide to connect to an Airport Base Station will be available to all computers connected to the Base Station.
In order to print to an Airport printer, you first need to make sure your computer is connected to the wireless router (the base station) either wirelessly, or directly with an Ethernet cable. If you are using a Mac, you can simply select the Base Station from the drop-down menu by clicking the Airport icon in the upper right-hand corner of the screen. Windows should allow you to choose the Base Station if you click the wireless network icon in the systray, located in the lower-right part of the screen.
The second thing you need to do is make sure the printer drivers for the printer are installed on the computer. Your computer will not recognize the wireless printer if you have not installed the correct drivers. You should be able to use the disc(s) that came with the printer or download the drivers from the manufacturer's website. After installing the drivers, you may need to restart your computer.
Once you've installed the printer drivers and established a network connection with the Airport Base Station, you should be able to print to the wireless printer. Just select "Print..." in whatever program you want to print from and then choose the printer from the list in the dialog box that pops up. The computer should recognize the printer as if it was connected directly to the machine. Once you click "Print," the file will get sent to the Base Station and the printer connected to it will print the document.
Question - 62 : - What are some examples of computer peripheral devices ?
Answer - 62 : - A computer peripheral, or peripheral device, is an external object that provides input and output for the computer. Some common input devices include:
keyboard
mouse
joystick
pen tablet
MIDI keyboard
scanner
digital camera
video camera
microphone
Some common output devices include:
monitor
projector
TV screen
printer
plotter
speakers
There are also devices that function as both input and output devices, such as:
external hard drives
media card readers
digital camcorders
digital mixers
MIDI equipment
While these are some of the more common peripherals, there are many other kinds as well. Just remember that any external device that provides input to the computer or receives output from the computer is considered a peripheral.
Question - 63 : - Can I fax a document without a fax machine?
Answer - 63 : - There are a number of fax programs available for faxing documents electronically using your computer's modem, or simply through the Internet. Some popular fax programs include FaxSTF (Mac) and Fax Wizard (Windows). These programs allow you to fax electronic documents such as Word documents or documents you scan into your computer. I would suggest visiting Download.com for a shareware fax program if you don't have one or visiting eFax.com for more information.
Question - 64 : - Why won't my scanner work?
Answer - 64 : - There are a couple of things that could be wrong with your scanner setup:
1. The drivers may have not been installed correctly (this is the most likely problem). Try reinstalling the software that came with the scanner.
2. The SCSI ID the scanner is using is already in use. Each SCSI device must have a unique ID or conflicts will happen. To change the ID, select a new number (most likely on the the back of the scanner).
3. The scanner or scanner software is incompatible with the computer. Check to see if the computer meets the scanner requirements. Also check for the latest version of drivers at the manufacturer's web site.
4. You don't have a good software program to control and import the scans. If the scanner didn't come with any software programs, the best program to use is Adobe Photoshop. If you just need a simple program that won't empty the bank, try Adobe Photoshop LE, Adobe PhotoDeluxe, or Jasc Paintshop Pro.
Question - 65 : - How can I upgrade my computer to USB 2.0 ?
Answer - 65 : - The answer to this question depends on if you have a desktop or a laptop computer.
If you have a desktop, you need at least one available PCI slot. This expansion slot is located on the back of your computer and and is usually covered by a metal plate that you must remove before installing a PCI card. You can install a USB 2.0 PCI card into this slot, which will give your computer USB 2.0 connectivity. Most USB 2.0 cards have several USB ports on them, so you can connect multiple USB devices to the card.
If you have a laptop, your computer will need to have a PCMCIA slot. (It is also called a PC card slot, which is much easier to say.) The slot is typically located on the side of the computer and is a little over five centimeters wide. It should be covered by a protective flap that will push in when you press on it. You can install a USB 2.0 PC card into this slot, which will give your computer one or more USB 2.0 connections.
As long as your operating system supports USB 2.0, you can install a USB 2.0 card whether or not your computer already has USB 1.1. Note that connecting a USB 2.0 hub or USB 2.0 device to a USB 1.1 port will cause the device to run at the slower USB 1.1 speed. Since USB 2.0 is 30-40 times faster than USB 1.1, it may be worth the upgrade.
Question - 66 : - What does scalable mean, in reference to a computer?
Answer - 66 : - Scalable is synonymous with expandable. A computer with a scalable architecture is able to be upgraded easily and for a long time. When buying network equipment, it is especially important that it is scalable so that it can work with the newer systems that may be added on later. The less scalable your equipment is, the sooner you'll be forced to upgrade.
Question - 67 : - What are computer viruses and how can I protect myself from them?
Answer - 67 : - A virus is a program or file which can do a variety of harmful things to your computer. Things like causing your computer to crash, creating tons of random files, or worse yet, deleting files. Most viruses can replicate themselves, which can be a big problem if they get on a computer network.
To protect yourself from viruses you should make sure you have an anti-virus program installed on your computer such as Symantec Anti-Virus, or McAfee Virus Scan. The most common way to get a computer virus is through an e-mail attachment. So it's best to not open any file that is questionable until you find out for sure that it's safe.
Question - 68 : - Which is better or faster - a Cable or DSL modem?
Answer - 68 : - Both cable and DSL connections are significantly faster than dial-up modem connections. However, there is often debate over which is the fastest of the two.
Cable and DSL modems are typically external devices that connect to your computer's Ethernet port. However, a cable modem connects to cable wiring (the same connection used for cable TV), while a DSL modem connects to a phone jack (used for a regular phone line). While these are significantly different connections, they both provide the same "always-on" Internet access for your computer.
Both cable and DSL Internet connections have increased in speed over the last few years. As of early 2005, a typical cable connection supports speeds of 2 to 3 Mbps (Megabits per second), while a typical DSL connection supports speeds of 768 Kbps (Kilobits per second) to 1.5 Mbps. This means cable modems usually have the capability to be faster than DSL modems.
However, a cable modem shares bandwidth with other computers in the area that also have cable Internet connections. If there are many people in your neighborhood that use the same cable service, it is likely your data transfer speeds will be reduced. DSL, on the other hand, is a direct line to the phone company, and therefore is not affected by other users. So DSL generally offers a more consistent speed.
That being said, I have tried both services and found that cable Internet service is faster. I have achieved speeds of 4.3 Mbps with the Time Warner cable connection, while I have not seen anything higher than 1.5 Mbps with the Qwest DSL connection. Also, I have not noticed the cable modem bandwidth drop significantly at busy times of the day, though my transfer rates are definitely faster at night than during the afternoon.
From my experience, cable is faster than DSL. Though I should note that DSL companies offer a number of different connection speeds for different prices. If you are already paying for a phone a phone line, a DSL connection may be $15 to $25 cheaper a month than cable Internet service. However, if you don't have a land line (and just use a cell phone), cable is most likely the best choice.
Question - 69 : - What's the difference between e-mail, online chat, and instant messaging?
Answer - 69 : - These are three different ways of communicating with other people over the Internet. To answer your question, I'll explain each method individually.
E-mail is a way of sending individual messages to people using an e-mail server to relay the message. Because the server holds the messages for a person until he or she retrieves them, e-mail can be sent whether or not a person is online. One way to send or receive e-mail is to use a mail program such as Outlook Explorer or Mac OS X Mail that will communicate with your mail server. Another method is called Webmail (such as Hotmail or Gmail) that allows you to send messages using a Web-based interface. To send someone an e-mail message using either of these methods, you simply need to know their e-mail address.
Online Chat is a way of talking online in realtime with many people at once. Some chat rooms are available via the Web, such as Yahoo! Chat, while others require a separate software program for chatting with other users. Online chat rooms allow multiple users to join in a conversation and see what all the other people are typing. Typically chat rooms are based around certain themes, such as Teen Chat, Macintosh Chat, or Religious Chat. Using online chat, you can meet new people in an anonymous environment. You will need to choose a "screen name" to join a chat room, but the screen name can be whatever you would like it to be. I usually choose something that describes me well, like "Hot Guy."
Instant Messaging, or "IMing," is a way of communicating online with a select group of people, usually individually. To instant message someone, you need to know his or her screen name. You can save your friends' screen names in a list called a "Buddy List." In the instant messaging world, your screen name is likely to be more permanent than with online chat. Also, unlike online chat, you need to use an instant messaging program, such as AOL Instant Messenger or MSN Messenger. While online, you can open IM windows with many of your friends at once and type messages back and forth until you realize it's time for bed and you haven't done you homework yet.
Question - 70 : - What does Windows XP ICS/ICF status mean?
Answer - 70 : - ICS stands for "Internet Connection Sharing" and ICF stands for "Internet Connection Firewall."
Internet Connection Sharing is where two or more computers share the same Internet connection. An Internet Connection Firewall is a Windows XP-specific feature that monitors and limits incoming Internet traffic. ICS and ICF can be enabled independently, which means you can have ICF turned on and ICS off, or vice versa.
If you are sharing an Internet connection, ICF should only be enabled for the computer or router that is directly connected to your Internet connection. It should not be configured for each computer on the network. If you only have one computer connected to the Internet, you can enable ICF directly on that machine and ICS is not needed. The ICS/ICF status refers to whether or not either of the two options have been turned on.
For help configuring ICS and ICF, you can view Microsoft's online documentation:
Setting up Internet Connection Sharing | Setting up the Internet Connection Firewall