Bihar SBTE Polytechnic Diploma Computer Science & Engineering 3rd Sem Dec 2019 COA Paper
| Sr. No. | Questions with options |
| 1 | Dynamic RAM consumes ____ power and ____ than the static RAM?
(a) More, faster (b) More, slower (c) Less, slower (d) Less, faster |
| 2 | Which flag of the 8085’s flag register is NOT accessible to programmer directly?
(a) Zero flag (b) Carry flag (c) Auxiliary carry flag (d) Parity flag |
| 3 | Cache memory works on the principle of
(a) Locality of reference (b) Locality of data (c) Locality of memory (d) Locality of reference & Memory |
| 4 | Which of the memory holds the information when the power supply is switched off?
(a) Dynamic RAM (b) Static RAM (c) EEROM (d) None of the above |
| 5 | Which of the following interrupt is markable?
(a) INTR (b) RST 7.5 (c) TRAP (d) Both (a) & (b) |
| 6 | Cycle stealing technique is used in
(a) Interrupt based data transfer (b) DMA based data transfer (c) Polled mode data transfer (d) All the above |
| 7 | Which of the following is NOT a characteristic of a RISC architecture
(a) Large instruction set (b) One instruction per cycle (c) Simple addressing modes (d) Register- to – register operation |
| 8 | Associative memory is some times called as –
(a) Content addressable memory (b) Cache memory (c) Main memory (d) Virtual memory |
| 9 | Floating point representation is used to store
(a) Integers (b) Whole numbers (c) Real integers (d) Boolean values |
| 10 | What characteristics of RAM memory makes it not suitable for permanent storage?
(a) Too bulky (b) Unreliable (c) Too slow (d) It is volatile |
| 11 | An instruction code is
(a) An output of a programme (b) A group of bits that instruct the computer to perform specific operation (c) The digital circuit that instruct the computer to perform specific operation (d) None of the above |
| 12 | The program counter (PC) holds the address of
(a) The instruction is being executed (b) The next instruction to be read from memory (c) The operands (d) None of these |
| 13 | The function of the control unit in digital computer is
(a) To initiate sequence of micro operations (b) To initiate the execution of a program (c) To stop the execution of a program (d) To shutdown the computer |
| 14 | A memory that is the part of a Control unit is known as
(a) Internal memory (b) External memory (c) Command memory (d) Control memory |
| 15 | A group of eight bits is known as
(a) Nibble (b) A byte (c) An octet (d) Both (a) & (b) |
| 16 | The tendency of a processor to access the same set of memory locations repetively over a short period of time is known as
(a) Local effect (b) Locality of reference (c) Frame of reference (d) All of the above |
| 17 | The CPU state is saved in the event of a transfer control –
(a) From one instruction to a non-sequential instruction of a program (b) From our program to another (c) During execution of an instruction due to an interrupt cycle (d) None of the above statement is true |
| 18 | A computer uses RAM chips of 1024×1 capacity. How many chips are needed to provide a memory capacity of 16 k bytes.
(a) 16 (b) 128 (c) 32 (d) None of these |
| 19 | Booth’s algorithm is used for
(a) Division (b) Multiplication (c) Subtraction (d) Division and multiplication |
| 20 | The instruction that does not need any address field is
(a) Three address instructions (b) Two address instructions (c) One address instructions (d) Zero address instructions |
| Data Collected By – K. Jeyanthi | |
| Published On – 21st April 2022 | |
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