Q1- Which of the following is not an image file?
a. JPEG
b. GIF
c. TMP
d. BMP
Q2- Which command lists files in MS-DOS?
a. cd
b. ls
c. dir
d. list
Q3- What is the capacity of a standard PC floppy?
a. 2MB
b. 1.44K
c. 1.44MB
d. 120MB
Q4- What is downloading?
a. Sending a file on the Internet
b. Retrieving a file on the Internet
c. Moving a file from a floppy
d. Scanning a picture
Q5- What is a cookie?
a. Cooking software
b. Web site
c. Internet information file
d. Hacker file
Q6- What is degauss?
a. Attachment for CPU
b. Creating magnetic media
c. Erasing magnetic media
d. Medical software
Q7- A Computer Virus cannot be contracted by.
a. Floppy diskette
b. E-mail
c. Scanner
d. Internet Downloads
Q8- A CPU stands for what?
a. Central Power Unit
b. Certified Public Unit
c. Certified Power Unit
d. Central Processing Unit
Q9- A Cathode Ray Tube is found in what?
a. CPU
b. Monitor
c. Printer
d. Scanner
Q10-What does the term MIME stand for?
a. Multipurpose Internet Mail Extensions
b. Mail Internet Mail Exchange
c. Mail Interleave Method Exchange
d. Multipurpose Interleave Mail Exchange
Answers:
1(c)
Each of the listed file types are valid, however, the TMP file extension is not an image file. TMP or temp files are temporary Windows files used to store temporary data or be used as a backup for files that are being used.
2(c)
The dir command, which is short for directory, list files in MS-DOS. This command should not be confused with the ls command, which lists files in Linux, Unix, and each of its variants.
3(c)
A standard PC floppy once formatted is capable of holding 1.44 MB. Because of this small capacity most computers no longer include a floppy drive.
4(b)
Downloading refers to retrieving a file from another computer over the Internet. As you browse the Internet each page and image you view is something your browser has downloaded to your computer.
5(c)
A cookie is an HTTP header that consists of text-only data saved on your computer. This data commonly contains the domain, path, lifetime, and value of a variable that you set. If the lifetime of this variable is longer than the time the user spends at your site, then this string is saved to file for future reference.
6(c)
Term derived from Johann Gauss who was a mathematician who studied and worked with electro-magnetic fields. Degauss is a method of erasing magnetic media and the removal of remnants of previously recorded signals by passing magnetic media through a magnet field more powerful than the media itself in order to rearrange the magnetic particles.
7(c)
Computer viruses cannot be contracted through a computer scanner, not to be confused with an anti-virus scanner. Although a hardware scanner inputs data into the computer from a hard copy, it's impossible for a virus to infect the computer because the text is either made into an image or as plain-text.
8(d)
The CPU or the Central Processing Unit is the brain of the computer and the single most important chip in the computer. Modern processors contain millions of transistors which are etched onto a tiny square silicon called a die, which is about the with of a standard thumb. The CPU performs the system's calculating and processing. The majority of personal computers included the Intel processors. Intel released the first processor, the 4004 in 1971. Today the market is being shared by other companies such as the popular AMD processor manufactured by the AMD company.
9(b)
A Cathode Ray Tube (CRT) is found in a Computer Monitor and is the most expensive part. Within the CRT are three electron guns, Red, Green and Blue. Each of these guns streams a steady flow of electrons left to right for each line of your monitor. As the electrons hit the phosphors on the CRT, the phosphor will glow certain intensities. As a new line begins the guns will then begin at the left and continue right, these guns will repeat this process sometimes thousands of time until the screen has been completely drawn line by line. Once the phosphors on the CRT have been hit with an electron they will only glow for a short period of time, because of this the CRT must be refreshed which means the process will be repeated as explained above.
10(a)
MIME stands for Multipurpose Internet Mail Extensions, which is a standard format for attaching non-text files, such as graphics and other files to a text base electronic mail message.
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