Tuesday, February 23, 2010
Wednesday, February 10, 2010
Objective Type Question Answers of Operating System
1. Which of the command is used to remove files ?
a. erase
b. rm
c. delete
d.dm
Ans: b
2. Which of the following command is used to count just the number of lines contained in a file ?
a. wc-1
b. wc-w
c.wc-c
d. wc-r
Ans: a
3. Which command is used to copy a file wb with the same name from the programs directory to the misc. directory ?
a. copy programs/w
b misc/wbb. cp programs/wb misc
c. copy a:programs/wb
b:misc/wbd. tar programs/wb misc/wb
Ans: b
a. erase
b. rm
c. delete
d.dm
Ans: b
2. Which of the following command is used to count just the number of lines contained in a file ?
a. wc-1
b. wc-w
c.wc-c
d. wc-r
Ans: a
3. Which command is used to copy a file wb with the same name from the programs directory to the misc. directory ?
a. copy programs/w
b misc/wbb. cp programs/wb misc
c. copy a:programs/wb
b:misc/wbd. tar programs/wb misc/wb
Ans: b
Monday, February 8, 2010
स्क्रेच्ड सीडी डीवीडी से डाटा प्राप्त करें .
खराब या घिसी हुयी सीडी डीवीडी या ब्लू रे डिस्क से डाटा रिकवर करने के लिए एक मुफ्त औज़ार ।अपनी खराब डिस्क को फेंकने से पहले इसका उपयोग करके देख लीजिये सहाय आपकी बहुत जरुरी फाइल या फोल्डर फिर से मिल जाए ।
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