Computer Organization and Architecture MCQs – Set 9
UGC NET Paper 2 Computer Science AUG 2016 – Computer Organization and Architecture
161. The register that stores the bits required to mask the interrupts is ______.
Computer Organization and Architecture • Interrupt handling • UGC NET Paper 2 Computer Science AUG 2016
162. 8085 microprocessor has ____ bit ALU.
Computer Organization and Architecture • Microprocessor architecture • UGC NET Paper 2 Computer Science AUG 2016
163. The octal number 326.4 equals which decimal and hex?
Computer Organization and Architecture • Number Systems • UGC NET Paper 2 Computer Science AUG 2016
164. Which binary representation is most efficient for arithmetic operations?
Computer Organization and Architecture • Number Systems • UGC NET Paper 2 Computer Science AUG 2016
165. Point P(5,1) is rotated 90° about (2,2). The new P′ is:
Computer Organization and Architecture • 2D Transformations: Rotation • UGC NET Paper 2 Computer Science AUG 2016
166. For a shear in the y-direction relative to xref with factors Shx, Shy: x′=?, y′=?
Computer Organization and Architecture • 2D Transformations: Shearing • UGC NET Paper 2 Computer Science AUG 2016
167. 8085 microprocessor has how many hardware interrupts?
Computer Organization and Architecture • 8085 Architecture • UGC NET Paper 2 Computer Science AUG 2016
168. After 8085 code `MVI A,42H; MVI B,05H; UGC: ADD B; DCR B; JNZ UGC; ADI 25H; HLT`, accumulator holds?
Computer Organization and Architecture • 8085 Assembly • UGC NET Paper 2 Computer Science AUG 2016
169. In 8085, which performs HL = HL + DE?
Computer Organization and Architecture • 8085 Instruction Set • UGC NET Paper 2 Computer Science AUG 2016
170. Addressing mode like register indirect but with offset is?
Computer Organization and Architecture • Addressing Modes • UGC NET Paper 2 Computer Science AUG 2016
171. In ____, writes go to both cache and main memory in parallel.
Computer Organization and Architecture • Cache Write Policies • UGC NET Paper 2 Computer Science AUG 2016
172. Window LL=(−5,1), UR=(3,7). Which segments are Cohen–Sutherland candidates? A:(−6,2)→(−1,8); C:(−1,5)→(4,8); E:(−2,3)→(1,2).
Computer Organization and Architecture • Clipping Algorithms: Cohen–Sutherland • UGC NET Paper 2 Computer Science AUG 2016
173. Which about curve generation is correct? I. Hermite uses interpolation. II. Bézier uses approximation. III. Bézier lies within convex hull. IV. Bézier degree independent of control points.
Computer Organization and Architecture • Curve Generation: Splines & Bézier • UGC NET Paper 2 Computer Science AUG 2016
174. In Bresenham’s circle algorithm for the first octant, if current point (xᵢ,yᵢ) and decision pᵢ ≥ 0, next (xᵢ₊₁,yᵢ₊₁) and pᵢ₊₁ are:
Computer Organization and Architecture • Discrete Structures & Algorithms: Bresenham’s Circle • UGC NET Paper 2 Computer Science AUG 2016
175. The IEEE-754 double-precision format uses how many bits in total?
Computer Organization and Architecture • Floating-Point Representation • UGC NET Paper 2 Computer Science AUG 2016
176. 256-CPU multicomputer as 16×16 grid worst-case message hops = ?
Computer Organization and Architecture • Interconnection Networks • UGC NET Paper 2 Computer Science AUG 2016
177. Register storing all interrupt requests is called?
Computer Organization and Architecture • Interrupt Handling • UGC NET Paper 2 Computer Science AUG 2016
178. Pipelining improves performance by .
Computer Organization and Architecture • Pipelining • UGC NET Paper 2 Computer Science AUG 2016
179. In perspective projection, a segment crossing the viewer’s position maps to an infinite broken line on the image plane. This is called:
Computer Organization and Architecture • Projection: Perspective Distortions • UGC NET Paper 2 Computer Science AUG 2016
180. In a positive-edge-triggered JK flip-flop, if J=K=1 what happens at the rising clock edge?
Computer Organization and Architecture • Sequential Circuits – Flip-Flops • UGC NET Paper 2 Computer Science AUG 2016
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This quiz is for educational purposes only…