Description : In snapshot, …………………. clause tells oracle how long to wait between refreshes. A) Complete B) Force C) Next D) Refresh
Last Answer : D) Refresh
Description : Suppose a digitized voice channel is made by digitizing 8 kHz bandwidth analog voice signal. It is required to sample the signal at twice the highest frequency (two samples per hertz). What is the bit rate required, if it ... sample requires 8 bits? (A) 32 kbps (B) 64 kbps (C) 128 kbps (D) 256 kbps
Last Answer : (C) 128 kbps
Description : Suppose that the time to do a null remote procedure call (RPC) (i.e, 0 data bytes) is 1.0 msec, with an additional 1.5 msec for every 1K of data. How long does it take to read 32 K from the file server as 32 1K RPCs? (A) 49 msec (B) 80 msec (C) 48 msec (D) 100 msec
Last Answer : (B) 80 msec
Description : The access time of ROM using bipolar transistors is about (A) 1 sec (B) 1 msec (C) 1 µsec (D) 1 nsec.
Last Answer : Ans: C The access time of ROM using bipolar transistors is about 1 µ sec.
Description : A disk drive has 100 cylinders, numbered 0 to 99. Disk requests come to the disk driver for cyclinders 12, 26, 24, 4, 42, 8 and 50 in that order. The driver is currently serving a request at cyclinder 24. A seek takes ... (SSTF) algorithm? (A) 0.984 sec (B) 0.396 sec (C) 0.738 sec (D) 0.42 sec
Last Answer : C
Description : A memory management system has 64 pages with 512 bytes page size. Physical memory consists of 32 page frames. Number of bits required in logical and physical address are respectively: (1) 14 and 15 (2) 14 and 29 (3) 15 and 14 (4) 16 and 32
Last Answer : (3) 15 and 14
Description : A DMA controller transfers 32-bit words to memory using cycle Stealing. The words are assembled from a device that transmits characters at a rate of 4800 characters per second. The CPU is fetching and executing instructions at an average ... of the DMA transfer? (A) 0.06% (B) 0.12% (C) 1.2% (D) 2.5%
Last Answer : Answer: B
Description : Assume that we need to download text documents at the rate of 100 pages per minute. A page is an average of 24 lines with 80 characters in each line and each character requires 8 bits. Then the required bit rate of the channel is ... ...... (A) 1.636 Kbps (B) 1.636 Mbps (C) 2.272 Mbps (D) 3.272 Kbps
Last Answer : Answer: Marks given to all
Description : Consider a disk with 16384 bytes per track having a rotation time of 16 msec and average seek time of 40 msec. What is the time in msec to read a block of 1024 bytes from this disk? (A) 57 msec (B) 49 msec (C) 48 msec (D) 17 msec
Description : If link transmits 4000 frames per second and each slot has 8 bits, the transmission rate of circuit of this TDM is ............... (A) 64 Kbps (B) 32 Mbps (C) 32 Kbps (D) 64 Mbps
Last Answer : (C) 32 Kbps
Description : The following data, relates to manufacturing company for the year 2006-07- Net Profit as per P & L A/c-Rs. 2,40,000; Depreciation-Rs. 80,000; Goodwill written-off- Rs. 40,000, Profit on Sale of Fixed Assets-Rs. 16,000, ... ) Rs. 4,40,000 (B) Rs. 4,00,000 (C) Rs. 6,40,000 (D) None of the above
Last Answer : Answer: None of the above
Description : The CPU of a system having 1 MIPS execution rate needs 4 machine cycles on an average for executing an instruction. The fifty percent of the cycles use memory bus. A memory read/write employs one machine cycle. For ... (A) 500 Kbytes/sec (B) 2.2 Mbytes/sec (C) 125 Kbytes/sec (D) 250 Kbytes/sec
Last Answer : (D) 250 Kbytes/sec
Description : What should be minimum requirement of random access memory (RAM) for internet access: a) 8 MB b) 16 MB c) 32 MB d) 64 MB
Last Answer : c) 32 MB
Description : The virtual address generated by a CPU is 32 bits. The Translation Lookaside Buffer (TLB) can hold total 64 page table entries and a 4-way set associative (i.e. with 4- cache lines in the set). The page size is 4 KB. The minimum size of TLB tag is (A) 12 bits (B) 15 bits (C) 16 bits (D) 20 bits
Last Answer : (C) 16 bits Explanation: VirtualAddress = 32 bits PageSize = 4KB = 12 bits therefore : VPNTag = 20 bits, OffsetTag = 12 bits TLBEntryLength = VPNTag = 20 bits TotalTLBEntries = 64, 4-way implies ... therefore : TLBIndex = 4 bits TLBTag = TLBEntryLength - TLBIndex = 20 - 4 = 16 bits
Description : _________is a copy of Basic Input/Output Operating System (BIOS) routines from Read Only Memory (ROM) into a special area of RAM so that they can be accessed more quickly. A. Dynamic RAM B. Shadow RAM C. Synchronous Graphics RAM D. Video RAM
Last Answer : B. Shadow RAM
Description : A unix file system has 1-KB blocks and 4-byte disk addresses. What is the maximum file size if i-nodes contain 10 direct entries and one single, double and triple indirect entry each? (A) 32 GB (B) 64 GB (C) 16 GB (D) 1 GB
Last Answer : (C) 16 GB
Description : A data file of 1,00,000 characters contains only the characters g-l, with the frequencies as indicated in table: using the variable-length code by Huffman codes, the file can be encoded with (A) 2,52,000 bits (B) 2,64,000 bits (C) 2,46,000 bits (D) 2,24,000 bits
Last Answer : (D) 2,24,000 bits
Description : What is the perimeter of the sector with radius 10.5 cm and sector angle 60o? (a) 48 cm (b) 96 cm (c) 64 cm (d) 32 cm
Last Answer : (d) 32 cm
Description : A box contains 2 pink balls, 3 brown balls and 4 blue balls. In how many ways can 3 balls be drawn from the box, if at least one brown ball is to be included in the draw? A) 32 B) 48 C) 64 D) 96 E) None
Last Answer : Answer: C)
Description : The percentage of P2O5 in diammonium hydrogen phosphate (NH4)2HPO4 is [CPMT 1992] (A) 23.48 (B) 46.96 (C) 53.78 (D) 71.00
Last Answer : (C) 53.78
Description : Windows 32 API supports (A) 16-bit Windows (B) 32-bit Windows (C) 64-bit Windows (D) All of the above
Last Answer : (D) All of the above
Description : The IEEE-754 double-precision format to represent floating point numbers, has a length of ........... bits. (A) 16 (B) 32 (C) 48 (D) 64
Last Answer : (D) 64
Description : What is the probability that a randomly selected bit string of length 10 is a palindrome? (A) 1/64 (B) 1/32 (C) 1/8 (D) ¼
Last Answer : (B) 1/32
Description : Station A uses 32 byte packets to transmit messages to station B using sliding window protocol. The round trip delay between A and B is 40 milli seconds and the bottleneck bandwidth on the path between A and B is 64 kbps. The optimal window size of A is (1) 20 (2) 10 (3) 30 (4) 40
Last Answer : (2) 10
Description : In windows 2000 operating system all the processor-dependent code is isolated in a dynamic link library called (A) NTFS file system (B) Hardware abstraction layer (C) Microkernel (D) Process Manager
Last Answer : (B) Hardware abstraction layer
Description : If an integer occupies 4 bytes and a character occupies 1 byte of memory, each element of the following structure would occupy how many bytes ? struct name { int age; char name[30]; }; A) 30 B) 32 C) 34 D) 36
Last Answer : C) 34
Description : Which of the following memories must be refreshed many times per second? A) Static RAM B) Dynamic RAM C) EPROM D) ROM
Last Answer : Answer : B
Description : Which of the following memories must be refreshed many times per second? a. Static RAM b. Dynamic RAM c. EPROM d. ROM
Last Answer : b. Dynamic RAM
Description : The total transportation cost in an initial basic feasible solution to the following transportation problem using Vogel’s Approximation method is (A) 76 (B) 80 (C) 90 (D) 96
Last Answer : (B) 80
Description : If X is a binary number which is power of 2, then the value of X&(X-1) is: (1) 11....11 (2) 00.....00 (3) 100.....0 (4) 000.....1
Last Answer : Answer: 2
Description : Which of the following is not typically a benefit of dynamic linking? I. Reduction in overall program execution time. II. Reduction in overall space consumption in memory. III. Reduction in overall space consumption on disk. IV. ... updates. (A) I and IV (B) I only (C) II and III (D) IV only
Last Answer : (B) I only
Description : What should be the minimum capacity of the RAM for multimedia? (a) 32 MB (b) 64 MB (c) 128 MB (d) 512 MB -Technology
Last Answer : (b) Atleast 64 MB RAM is needed for multimedia.
Description : What is the most appropriate function of Memory Management Unit (MMU) ? (A) It is an associative memory to store TLB (B) It is a technique of supporting multiprogramming by creating dynamic partitions ... to physical address (D) It is an algorithm to allocate and deallocate main memory to a process
Last Answer : (C) It is a chip to map virtual address to physical address
Description : The refresh rate above which a picture stops flickering and fuses into a steady image is called .................. (A) Crucial fusion frequency (B) Current frequency fusion (C) Critical fusion frequency (D) Critically diffused frequency
Last Answer : (C) Critical fusion frequency
Description : For the implementation of a paging scheme, suppose the average process size be x bytes, the page size be y bytes, and each page entry requires z bytes. The optimum page size that minimizes the total overhead due to the page ... fragmentation loss is given by (A) x/2 (B) xz/2 (C) √2xz (D) (√xz)/2
Last Answer : (C) √2xz
Description : Consider three CPU intensive processes P1, P2, P3 which require 20, 10 and 30 units of time, arrive at times 1, 3 and 7 respectively. Suppose operating system is implementing Shortest Remaining Time first (preemptive scheduling) ... end of Ready queue are not counted). (A) 3 (B) 2 (C) 4 (D) 5
Last Answer : (A) 3
Description : Ten signals, each requiring 3000 Hz, are multiplexed on to a single channel using FDM. How much minimum bandwidth is required for the multiplexed channel ? Assume that the guard bands are 300 Hz wide. (A) 30,000 (B) 32,700 (C) 33,000 (D) None of the above
Last Answer : (B) 32,700
Description : A computer program selects an integer in the set {k : 1 ≤ k ≤ 10,00,000} at random and prints out the result. This process is repeated 1 million times. What is the probability that the value k = 1 appears in the printout atleast once ? (A) 0.5 (B) 0.704 (C) 0.632121 (D) 0.68
Last Answer : (C) 0.632121
Description : A thread is usually defined as a light weight process because an Operating System (OS) maintains smaller data structure for a thread than for a process. In relation to this, which of the following ... separate stack for each thread. (D) OS does not maintain virtual memory state for each thread.
Last Answer : (B) OS maintains only CPU registers for each thread.
Description : Fixed capital investment of a chemical plant is the total amount of money needed to supply the necessary plant and manufacturing facilities plus the working capital for operation of the facilities. Which of ... (B) Equipment installation cost (C) Cost for piping (D) Equipment insulation cost
Last Answer : (D) Equipment insulation cost
Description : Male literacy rate in India according to 2001 census is - (1) 45.96 per cent (2) 56.38 per cent (3) 75.85 per cent (4) 64.13 per cent
Last Answer : (3) 75.85 per cent Explanation: As per the 2001 Census, the literacy rate of India increased from 18.33% in 1951 to 64.84% in 2001. The male literacy rate increased to 75.26%, which showed an ... at a much faster rate of 14.38%. According to 2011 census, male literacy rate in India is 80.9%.
Description : The friend functions are used in situations where A) We want to exchange data between classes B) We want to have access to unrelated classes C) Dynamic binding is required D) We want to create versatile overloaded operators.
Last Answer : A) We want to exchange data between classes
Description : An analog signal has a bit rate of 6000 bps and a baud rate of 2000 baud. How many data elements are carried by each signal element ? (A) 0.336 bits/baud (B) 3 bits/baud (C) 120,00,000 bits/baud (D) None of the above
Last Answer : (B) 3 bits/baud
Description : The versions of windows operating system like windows XP and window Vista uses following file system: (A) FAT-16 (B) FAT-32 (C) NTFS (NT File System) (D) All of the above
Description : An adult patient with a history of bacterial endocarditis requires prophylactic administration of antibiotics prior to removal of teeth. Indicate the pre-operative regimen:** A. Amoxicillin 2 gram ... orally six hours before operation C. Tetracycline 250-500 mg orally 2 hours before treatment
Last Answer : A. Amoxicillin 2 gram one hour before operation orally
Description : Consider an array A[20, 10], assume 4 words per memory cell and the base address of array A is 100. What is the address of A[11, 5] ? Assume row major storage. (A) 560 (B) 565 (C) 570 (D) 575
Last Answer : (A) 560
Description : Three measuring rods are 64 cm,80 cm and 96 cm in length . What is the least length of cloth that can can be measured exact number of times using any one of these rods? (a) 9.60 m (b) 8 m (c) 9.60 cm (d) 96 m
Last Answer : Ans 4. 9.60 m
Description : Information stored in RAM need to be ________ A. Check B. modify C. refresh periodically D. None of the Above
Last Answer : C. refresh periodically
Description : IPv4 and IPv6 are addresses used to identify computers on the internet. Find the correct statement out of the following: (A) Number of bits required for IPv4 address is more than number of bits required for ... of bits required for IPv6 address. (D) Number of bits required for IPv4 address is 64.
Last Answer : (C) Number of bits required for IPv4 address is less than number of bits required for IPv6 address.
Description : Consider a 32 - bit microprocessor, with a 16 - bit external data bus, driven by an 8 MHz input clock. Assume that the microprocessor has a bus cycle whose minimum duration equals four input clock cycles. What ... (A) 8x106 bytes/sec (B) 4x106 bytes/sec (C) 16x106 bytes/sec (D) 4x109 bytes/sec
Last Answer : (B) 4x106 bytes/sec