CUET PG MCA Computer Memory Back-up Devices Previous Year Questions (PYQs)
Study Stuff for MCA Examinations
Solution
We need to arrange memories from fastest to slowest in terms of access speed:
-
Registers (D): Fastest (located inside CPU).
-
Cache Memory (B): Next fastest (very close to CPU, faster than RAM).
-
RAM (C): Slower than cache.
-
Hard Disk Drive (A): Slowest (secondary storage).
So the correct order is:
Solution
Per unit cost comparison (lowest → highest):
- (E) Magnetic tape → Cheapest (backup/archive storage)
- (B) Magnetic disk → Hard disk, inexpensive
- (C) Optical disk → CD/DVD/Blu-ray, costlier than HDD
- (A) DRAM → Main memory, more expensive
- (D) SRAM → Cache memory, fastest and most expensive
Final Order (increasing per unit cost):
E < B < C < A < D
| List - I | List - II |
| (A) Flash Memory | (I) Oldest and Slowest |
| (B) PMOS | (II) Used in large scale integration (LSI) |
| (C) NMOS | (III) Least power consumption |
| (D) CMOS | (IV) Non volatile RAM which is powered continuously |
Solution
Solution:
| List - I | List - II | Match |
|---|---|---|
| (A) Flash Memory | (IV) Non-volatile RAM which is powered continuously | A → IV |
| (B) PMOS | (I) Oldest and slowest | B → I |
| (C) NMOS | (II) Used in large scale integration (LSI) | C → II |
| (D) CMOS | (III) Least power consumption | D → III |
Final Answer: (A) → (IV), (B) → (I), (C) → (II), (D) → (III)
Solution
Solution
Arrange the following steps of retrieving data from memory unit.
(A) Memory Address Register send address to memory chip
(B) The address is placed on address bus
(C) The control unit sends signal
(D) Data is retrieved and place into the Memory Data Register
Options:
(a) D, C, A, B
(b) A, B, C, D
(c) A, C, D, B
(d) B, D, A, C
Solution
1. Memory Address Register (MAR) sends the address → (A)
2. Address is placed on the address bus → (B)
3. Control unit sends the read signal → (C)
4. Data is fetched and stored in Memory Data Register (MDR) → (D)
Correct Order: A → B → C → D
Correct Answer: (b) A, B, C, D
CUET PG MCA
Online Test Series, Information About Examination,
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and More.
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CUET PG MCA
Online Test Series, Information About Examination,
Syllabus, Notification
and More.
View More
