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MCQOPTIONS
This section includes 1917 Mcqs, each offering curated multiple-choice questions to sharpen your UGC-NET knowledge and support exam preparation. Choose a topic below to get started.
| 951. |
Which of the following is used to retrieve mails from remote mail server? |
| A. | SMTP |
| B. | POP3 |
| C. | HTTP |
| D. | DNS |
| Answer» C. HTTP | |
| 952. |
Which of the following application layer protocols uses UDP as its underlying transport protocol? |
| A. | DNS |
| B. | FTP |
| C. | SMTP |
| D. | HTTP |
| Answer» B. FTP | |
| 953. |
Which of the following is used by a client to establish a socket connection with the server? |
| A. | Socket s = ServerSocket.getsocket(); |
| B. | Socket s = ServerSocket.accept(); |
| C. | Socket s = ServerSocket(server Name, port); |
| D. | Socket s = ServerSocket.connect(); |
| Answer» D. Socket s = ServerSocket.connect(); | |
| 954. |
Which of the following statements is used by the serve to listen for a connection request from a client? |
| A. | Socket s = ServerSocket.listen(); |
| B. | Socket s = ServerSocket.wait(); |
| C. | Socket s = ServerSocket.get socket(); |
| D. | Socket s = ServerSocket.accept(); |
| Answer» E. | |
| 955. |
What happens when a serve uses a port to blind an object, but the port is not available? |
| A. | The object is bound successfully |
| B. | The server is blocked until the port is available |
| C. | The server encounters a fatal error and must be terminated |
| D. | The exception java.Net.Blind Exception occurs |
| Answer» E. | |
| 956. |
What happens when a client requests connection to a server that has not yet started? |
| A. | The exception java.Net.Connection Exception occurs |
| B. | The client gets blocked until the serve is started |
| C. | The exception java.Net.Blind Exception occurs |
| D. | The client encounters a fatal error and must be terminated |
| Answer» B. The client gets blocked until the serve is started | |
| 957. |
Which of the following can be used for the host name to establish a socket connection with the server running on the same machine with the client? |
| A. | “127.0.1” |
| B. | Inet Address.GetLocalHost() |
| C. | “local host” |
| D. | All of the above |
| Answer» E. | |
| 958. |
Which of the following is used to get an Inet address object on a socket object Skt.? |
| A. | Skt.obtainInetAddress(); |
| B. | Skt.retrievInetAddress(); |
| C. | Skt.InetAddress(); |
| D. | Skt.GetInetAddress(); |
| Answer» B. Skt.retrievInetAddress(); | |
| 959. |
Which of the following is not true in case of Oblique Projections? |
| A. | Parallel projection rays are not perpendicular to the viewing plane. |
| B. | Parallel lines in space appear parallel on the final projected image. |
| C. | Used exclusively for pictorial purposes rather than formal working drawings. |
| D. | Projectors are always perpendicular to the plane of projection. |
| Answer» E. | |
| 960. |
Find the normalization transformation that maps a window whose lower left corner is at (1, 1) and upper right corner is at (3, 5) onto a viewport that is the entire normalized device screen. |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» B. 2 | |
| 961. |
Consider the matrix representing a set of planar (2D) geometric transformations in homogeneous coordinates. Which of the following statements about the matrix M is True? |
| A. | M represents first, a scaling of vector (2,1) followed by translation of vector (1,1) |
| B. | M represents first, a translation of vector (1,1) followed by scaling of vector (2,1) |
| C. | M represents first, a scaling of vector (3,1) followed by shearing of parameters (-1,1) |
| D. | M represents first, a shearing of parameters (-1,1) followed by scaling of vector (3,1) |
| Answer» C. M represents first, a scaling of vector (3,1) followed by shearing of parameters (-1,1) | |
| 962. |
If the frame buffer has 10-bits per pixel and 8-bits are allocated for each of the R,G, and B components, then what would be the size of the color lookup table (LUT)? |
| A. | (2^8+2^9) bytes |
| B. | (2^10+2^8) bytes |
| C. | (2^10+2^24) bytes |
| D. | (2^10+2^11) bytes |
| Answer» E. | |
| 963. |
Which homogeneous 2D matrix transforms the figure (a) on the left side to the figure (b) on the right? |
| A. | (1) |
| B. | (2) |
| C. | (3) |
| D. | (4) |
| Answer» C. (3) | |
| 964. |
Consider the midpoint (or Bresenham) algorithm for rasterizing lines given below:Which statements are true?P: For a line with slope m>1, we should change the outer line in line (4) to be over y.Q: Lines (10) and (12) update the decision variable d through an incremental evaluation of the line equation f.R: The algorithm fails if d is over 0. |
| A. | P, Q and R |
| B. | P only |
| C. | P and Q only |
| D. | Q and R only |
| Answer» D. Q and R only | |
| 965. |
The perspective projection matrix, on the view plane z = d where the center of projection is the origin (0, 0, 0) shall be |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» C. C | |
| 966. |
Circle has ……………. |
| A. | No vertices |
| B. | Only 1 vertex |
| C. | ∞ vertices |
| D. | None of these |
| Answer» B. Only 1 vertex | |
| 967. |
Consider the following transformation matrix for rotation(clockwise). This matrix rotates an object by an angle θ about : |
| A. | X-axis |
| B. | Y-axis |
| C. | Z-axis |
| D. | All of the above |
| Answer» D. All of the above | |
| 968. |
Which raster locations would be chosen by Bresenham’s algorithm when scan converting a line from (1, 1) to (8, 5) ? |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» D. D | |
| 969. |
Given two spatial masks. The Laplacian of an image at all points (x, y) can be implemented by convolving the image with spatial mask. Which of the following can be used as the spatial mask ? |
| A. | only S1 |
| B. | only S2 |
| C. | Both S1 and S2 |
| D. | None of these |
| Answer» C. Both S1 and S2 | |
| 970. |
The transformation matrix required for conversion of CMY colour model to RGB colour model is given as |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» D. D | |
| 971. |
Which of the following is/are side effects of scan conversion?a. Aliasingb. Unequal intensity of diagonal linesc. Over striking in photographic applicationsd. Local or Global aliasing |
| A. | a and b |
| B. | a, b and c |
| C. | a, c and d |
| D. | a, b, c and d |
| Answer» E. | |
| 972. |
Consider a window bounded by the lines : x = 0; y= 0; x = 5 and y = 3. The line segment joining (-1, 0) and (4, 5), if clipped against this window will connect the points |
| A. | (0, 1) and (2, 3) |
| B. | (0, 1) and (3, 3) |
| C. | (0, 1) and (4, 3) |
| D. | (0, 1) and (3, 2) |
| Answer» B. (0, 1) and (3, 3) | |
| 973. |
A clustering technique that permits a convenient graphical display is: |
| A. | partition based clustering |
| B. | probabilistic model based clustering |
| C. | hierarchical clustering |
| D. | agglomerative clustering |
| Answer» D. agglomerative clustering | |
| 974. |
In perspective projection, if a line segment joining a point which lies in front of the viewer to a point in back of the viewer is projected to a broken line of infinite extent. This is known as ................... |
| A. | View confusion |
| B. | Vanishing point |
| C. | Topological distortion |
| D. | Perspective foreshortening |
| Answer» D. Perspective foreshortening | |
| 975. |
In 3D Graphics, which of the following statements is/are true?P: Back-face culling is an example of an image-precision visible-surface determination procedure.Q: Z- buffer is a 16-bit, 32-bit, or 64 bit field associated with each pixel in a frame buffer that can be used to determine the visible surfaces at each pixel. |
| A. | P only |
| B. | Q only |
| C. | P and Q |
| D. | Neither P nor Q |
| Answer» C. P and Q | |
| 976. |
If a and b are the end points of a line, then which one of the following is true ? |
| A. | If both end points are left, right, above or below the window, the line is invisible. |
| B. | If both end points are left, right, above or below the window, the line is completely visible. |
| C. | If both end points are left, right, above or below the window, the line is trivially visible. |
| D. | If both end points are left, right, above or below the window, the line is trivially invisible. |
| Answer» E. | |
| 977. |
A point P(5,1) is rotated by 90 degrees about a pivot point (2,2). What is the coordinate of new transformed point P’ ? |
| A. | (3,5) |
| B. | (5,3) |
| C. | (2,4) |
| D. | (1,5) |
| Answer» B. (5,3) | |
| 978. |
Which of the following graphics devices are known as active graphics devices ?(i) Alphanumeric devices(ii) Thumb wheels(iii) Digitizers(iv) Joystics |
| A. | (i) and (ii) |
| B. | (iii) and (iv) |
| C. | (i), (ii) and (iii) |
| D. | (i), (ii), (iii) and (iv) |
| Answer» E. | |
| 979. |
In homogenous coordinate system (x, y, z) the points with z = 0 are called |
| A. | Cartesian points |
| B. | Parallel points |
| C. | Origin point |
| D. | Point at infinity |
| Answer» E. | |
| 980. |
A segment is any object described by GKS commands and data that start with CREATE SEGMENT and Terminates with CLOSE SEGMENT command. What functions can be performed on these segments? |
| A. | Translation and Rotation |
| B. | Panning and Zooming |
| C. | Scaling and Shearing |
| D. | Translation, Rotation, Panning and Zooming |
| Answer» E. | |
| 981. |
With respect to CRT, the horizontal retrace is defined as : |
| A. | The path an electron beam takes when returning to the left side of the CRT. |
| B. | The path an electron beam takes when returning to the right side of the CRT. |
| C. | The technique of turning the electron beam off while retracing. |
| D. | The technique of turning the electron beam on/off while retracing. |
| Answer» B. The path an electron beam takes when returning to the right side of the CRT. | |
| 982. |
The technique used for producing color displays with random scan CRT monitors: |
| A. | Beam Penetration |
| B. | Shadow Mask |
| C. | Direct View Storage |
| D. | Gas-Discharge |
| Answer» B. Shadow Mask | |
| 983. |
The parametric representation of the line segment between the position vectors P1(2, 3) and P2(5, 4) is given as |
| A. | x(t)= 2+7t, y(t) = 3+7t 0 ≤ t ≤ ∝ |
| B. | x(t)=2+10t, y(t) = 3+12t 0 ≤ t ≤ 1 |
| C. | x(t)= 2+3t, y(t)=3+t 0 ≤ t ≤ 1 |
| D. | t(x, y) = 14t 0 ≤ t ≤ 1 |
| Answer» D. t(x, y) = 14t 0 ≤ t ≤ 1 | |
| 984. |
A diametric projection is said to be trimetric projection when(i) two of the three foreshortening factors are equal and third is arbitrary.(ii) all of the three foreshortening factors are equal.(iii) all of the three foreshortening factors are arbitrary.Which of the above is true ? |
| A. | (i) and (ii) |
| B. | (ii) and (iii) |
| C. | (i) only |
| D. | (iii) only |
| Answer» D. (iii) only | |
| 985. |
The end points of a given line are (0, 0) and (6, 18). Compute each value of y as x steps from 0 to 3, by using equation of straight line : |
| A. | For x=0, y=0; x=1, y=3; x=2, y=6; x=3, y=9 |
| B. | For x=0, y=1; x=1, y=3; x=2, y=4; x=3, y=9 |
| C. | For x=0, y=2; x=1, y=3; x=2, y=6; x=3, y=9 |
| D. | For x=0, y=0; x=1, y=3; x=2, y=4; x=3, y=6 |
| Answer» B. For x=0, y=1; x=1, y=3; x=2, y=4; x=3, y=9 | |
| 986. |
Match the following:List – I List – II(a) Flood Gun (i) An electron gun designed to flood the entire screen with electrons.(b) Collector (ii) Partly energized by flooding gun, stores the charge generated by the writing gun.(c) Ground (iii) Used to discharge the collector.(d) Phosphorus grains (iv) Used in memory - tube display and similar to those used in standard CRT.(e) Writing Gun System (v) Used in memory - tube display and basically the same as the electron gun used in a conventional CRT.code:a b c d e |
| A. | (i) (ii) (iii) (iv) (v) |
| B. | (ii) (iii) (i) (iv) (v) |
| C. | (iii) (i) (ii) (v) (iv) |
| D. | (iv) (v) (i) (ii) (iii) |
| Answer» B. (ii) (iii) (i) (iv) (v) | |
| 987. |
Which of the following is not a component of Memory tube display? |
| A. | Flooding gun |
| B. | Collector |
| C. | Ground |
| D. | Liquid Crystal |
| Answer» E. | |
| 988. |
Bresenham line drawing algorithm is attractive because it uses |
| A. | Real arithmetic only |
| B. | Integer arithmetic only |
| C. | Floating point arithmetic |
| D. | Real and integer arithmetic |
| Answer» C. Floating point arithmetic | |
| 989. |
Consider a triangle represented by A(0, 0), B(1, 1), C(5, 2). The triangle is rotated by 45 degrees about a point P( -1, -1). The co-ordinates of the new triangle obtained after rotation shall be |
| A. | A'(-1, √2 -1), B'(-1, 2√2 - 1), C'((3/2)√2 - 1, (9/2)√2 - 1) |
| B. | A'(√2 -1,- 1), B'( 2√2 - 1, -1), C'((3/2)√2 - 1, (9/2)√2 - 1) |
| C. | A'(-1, √2 -1), B'(2√2 - 1, -1), C'((3/2)√2 - 1, (9/2)√2 - 1) |
| D. | A'(-1, √2 -1), B'( 2√2 - 1, -1), C'((9/2)√2 - 1, (3/2)√2 - 1) |
| Answer» B. A'(√2 -1,- 1), B'( 2√2 - 1, -1), C'((3/2)√2 - 1, (9/2)√2 - 1) | |
| 990. |
Line caps are used for adjusting the shape of the line ends to give them a better appearance. Various kinds of line caps used are |
| A. | Butt cap and sharp cap |
| B. | Butt cap and round cap |
| C. | Tutt cap, sharp cap and round cap |
| D. | Butt cap, round cap and projecting square cap |
| Answer» E. | |
| 991. |
Which of the following statement(s) is/are incorrect?(a) Mapping the co-ordinates of the points and lines that form the picture into the appropriate co-ordinates on the device or workstation is known as viewing transformation.(b) The right-handed Cartesian co-ordinates system in whose co-ordinates we describe the picture is known as world co-ordinate system.(c) The co-ordinate system that corresponds to the device or workstation where the image is to be displayed is known as physical device co-ordinate system.(d) Left - handed co-ordinate system in which the display area of the virtual display device corresponds to the unit (|x|) square whose lower left-hand corner is at the origin of the co-ordinate system, is known as normalized device co-ordinate system. |
| A. | (a) only |
| B. | (a) and (b) |
| C. | (c) only |
| D. | (d) only |
| Answer» E. | |
| 992. |
Which of the following is not a basic primitive of the Graphics Kernel System (GKS)? |
| A. | POLYLINE |
| B. | POLYDRAW |
| C. | FILL AREA |
| D. | POLYMARKER |
| Answer» C. FILL AREA | |
| 993. |
Which of the following is/are the principle components of a memory-tube display ?(a) Flooding gun (b) Collector(c) Phosphorus grains (d) Ground |
| A. | (a) and (b) |
| B. | (c) only |
| C. | (d) only |
| D. | All the above |
| Answer» E. | |
| 994. |
Which of the following statements is/are True regarding the solution to the visibility problem in 3D graphics?S1: The Painter’s algorithm sorts polygons by depth and then paints (scan - converts) each Polygon on to the screen starting with the most nearest polygon.S2: Backface Culling refers to eliminating geometry with backfacing normals. |
| A. | S1 only |
| B. | S2 only |
| C. | Both S1 and S2 |
| D. | Neither S1 nor S2 |
| Answer» C. Both S1 and S2 | |
| 995. |
The type of geometric transformation applied to an object for re-positioning it along a straight line path from one location to another: |
| A. | Scaling |
| B. | Rotation |
| C. | Translation |
| D. | Reflection |
| Answer» D. Reflection | |
| 996. |
Consider the Breshenham’s line generation algorithm for a line with gradient greater than one, current point (xi, yi) and decision parameter, di. The next point to be plotted (xi+1, yi+1) and updated decision parameter, di+1, for di < 0 are given as .................(A) xi+1 = xi+1yi+1 = yidi+1 = di + 2 dy(B) xi+1 = xiyi+1 = yi + 1di+1 = di + 2 dx(C) xi+1 = xiyi+1 = yi + 1di+1 = di + 2 (dx – dy)(D) xi+1 = xi + 1yi+1 = yi + 1di+1 = di + 2 (dy – dx) |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» C. C | |
| 997. |
An actor in an animation is a small program invoked ............... per frame to determine the characteristics of some object in the animation. |
| A. | once |
| B. | twice |
| C. | 30 times |
| D. | 60 times |
| Answer» B. twice | |
| 998. |
Consider a raster grid having XY-axes in positive X-direction and positive upward Y-direction with Xmax = 10, Xmin = –5, Ymax = 11, and Ymin = 6. What is the address of memory pixel with location (5, 4) in raster grid assuming base address 1 (one)? |
| A. | 150 |
| B. | 151 |
| C. | 160 |
| D. | 161 |
| Answer» E. | |
| 999. |
Find the equation of the circle x^2+y^2=1 in terms of x'y' coordinates, assuming that the xy coordinate system results from a scaling of 3 units in the x' direction and 4 units in the y' direction. |
| A. | 3(x')^2 + 4(y')^2 = 1 |
| B. | (x'/3)^2 + (y'/4)^2 = 1 |
| C. | (3x')^2 + (4y')^2 = 1 |
| D. | 1/3(x')^2 + 1/4(y')^2 = 1 |
| Answer» C. (3x')^2 + (4y')^2 = 1 | |
| 1000. |
Below are the few steps given for scan-converting a circle using Bresenham's Algorithm. Which of the given steps is not correct? |
| A. | Compute d = 3 – 2r (where r is radius) |
| B. | Stop if x > y |
| C. | If d<0, then d=4x+6 and x=x+1 |
| D. | If d≥0,then d=4 *(x-y)+10, x=x+1 and y=y+1 |
| Answer» E. | |