Jamia Millia Islamia MCA Computer Awareness Previous Year Questions (PYQs) – Page 1 of 3
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Which is the odd one?
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Solution
CRT (Cathode Ray Tube) is a display device, others are printers.
Match List-I and List-II and select the correct group of matching.
List-I List-II
1. DOS P. Sun Microsystems
2. P4 Q. Microsoft Corporation
3. Java R. IBM
4. PC S. Intel Corporation
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Solution
lution:
- DOS was developed by **Microsoft Corporation** → Q
- P4 (Pentium 4) is a processor by **Intel Corporation** → S
- Java was developed by **Sun Microsystems** → P
- PC (Personal Computer) was introduced by **IBM** → R
Hence the correct matching:
$(1, Q), (2, S), (3, P), (4, R)$
Match List-I and List-II and select the correct group.
List-I: 1. Azim Premji 2. Narayana Murthy 3. Bill Gates 4. Ramalinga Raju
List-II: P. Microsoft Q. Wipro R. Satyam S. Infosys
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Solution
Azim Premji → Wipro $(Q)$, Narayana Murthy → Infosys $(S)$,
Bill Gates → Microsoft $(P)$, Ramalinga Raju → Satyam $(R)$.
In general, for a computer, which of the following represents the memories in increasing order of their capacities?
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Solution
Sabeer Bhatia** founded **Hotmail**, the world’s first free web-based email service.
Which out of these is NOT correct pairing?
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Solution
Solution:
- BCD (Binary Coded Decimal) uses **4 bits**, not 7 bits.
- EBCDIC (Extended Binary Coded Decimal Interchange Code) uses **8 bits**.
- ASCII (American Standard Code for Information Interchange) is **7-bit**, extended ASCII is 8-bit.
Hence, “BCD – 7 bit” is incorrect.
z/OS is a …
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Solution
IBM z/OS is a **mainframe** operating system.
Which file format is NOT suitable for SD card in Android phone?
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Solution
Android devices natively support **FAT32** and **exFAT** file systems.
However, **NTFS** is not fully supported without third-party drivers or root access.
Which of the following is a mobile operating system?
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Solution
Palm OS is a mobile/PDA operating system; AVG is antivirus; BeOS is desktop.
Which of the following is antivirus software?
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Solution
Norton is antivirus software.
$\boxed{\text{Norton}}$
Which of the following is a social media website?
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Solution
Instagram is a social networking website.
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