State True or False i) A destructor never takes any argument nor does it return any value. ii) It releases memory space for future use. A) True, True B) True, False C) False, True D) False, False

State True or False
i) A destructor never takes any argument nor does it return any value.
ii) It releases memory space for future use.
A) True, True
B) True, False
C) False, True
D) False, False
by

1 Answer

Answer :

A) True, True
by

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State true or false for Java Program. i) Data members of an interface are by default final ii) An abstract class has implementations of all methods defined inside it. A) i-false, ii-false B) i-false, ii-true C) i-true, ii-false D) i-true, ii-true

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State True or False. i) A satic function can have access to only other static members (functions or variables) declared in the same class. ii) A static member function can be called using the class name (instead of its objects) A) True, True B) True, False C) False, True D) False, False

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Last Answer : B) True, True

State whether true or false. i) Multithreading is useful for application that perform a number of essentially independent tasks that do not be serialized. ii) An example of multithreading is a database server that listens for and process numerous client request. A) i-True, ii-False B) i-True, ii-True C) i-False, ii-True D) i-False, ii-False

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Last Answer : B) i-True, ii-True

State True or False. i) In spooling high speed device like a disk is interposed between running program and low-speed device in Input/output. ii) By using spooling for example instead of writing directly to a printer, outputs are written to the disk. A) i-True, ii-False B) i-True, ii-True C) i-False, ii-True D) i-False, ii-False

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Last Answer : B) i-True, ii-True

State True or False. i) Master Development Plan basically is a schedule of various applications to be comprised. ii) It consists of start and finish dates of a system analysis, design implementation and maintenance activities. A) i-True, ii-True B) i-False, ii-True C) i-True, ii-False D) i-False, ii-False

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Last Answer : A) i-True, ii-True

State True or False. i) An undirected graph which contains no cycles is called forest. ii) A graph is said to be complete if there is an edge between every pair of vertices. A) True, True B) False, True C) False, False D) True, False

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Last Answer : A) True, True

State True or False. i) Binary search is used for searching in a sorted array. ii) The time complexity of binary search is O(logn). A) True, False B) False, True C) False, False D) True, True

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Last Answer : D) True, True

State True of False. i) Network is a graph that has weights or costs associated with it. ii) An undirected graph which contains no cycles is called a forest. iii) A graph is said to be complete if there is no edge between every pair of vertices. A) True, False, True B) True, True, False C) True, True, True D) False, True, True

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Last Answer : B) True, True, False

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State true or false i) A candidate key is a minimal super key. ii) A candidate key can also refer to as surrogate key. A) i-true, ii-false B) i-false, ii-true C) i-true, ii-true D) i-false, ii-false

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State whether the following statement are true. i) An application-level gateway is often referred to as a proxy. ii) In proxy, a direct connection is established between the client and destination server. A) True, False B) False, True C) True, True D) False, False

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Last Answer : D) False, False

State whether the following is True or False. i) In bus topology, heavy Network traffic slows down the bus speed. ii) It is multipoint configuration. A) True, True B) True, False C) False, True D) False, False

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Last Answer : A) True, True

Consider the following statements related to compiler construction: I. Lexical Analysis is specified by context-free grammars and implemented by pushdown automata. II. Syntax Analysis is specified by regular expressions and implemented by finite-state machine. Which of the above statement(s) is/are correct? (1) Only l (2) Only ll (3) Both I and II (4) Neither I nor Il

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In a demand paging memory system, page table is held in registers. The time taken to service a page fault is 8 m.sec. if an empty frame is available or if the replaced page is not modified, and it takes 20 m.secs., if the replaced page is modified. What is the average access time to service a page fault assuming that the page to be replaced is modified 70% of the time ? (A) 11.6 m.sec. (B) 16.4 m.sec. (C) 28 m.sec. (D) 14 m.sec.

Description : In a demand paging memory system, page table is held in registers. The time taken to service a page fault is 8 m.sec. if an empty frame is available or if the replaced page is not modified, and it takes 20 m.secs., if the replaced ... ? (A) 11.6 m.sec. (B) 16.4 m.sec. (C) 28 m.sec. (D) 14 m.sec.

Last Answer : (B) 16.4 m.sec. 

Suppose that the number of instructions executed between page faults is directly proportional to the number of page frames allocated to a program. If the available memory is doubled, the mean interval between page faults is also doubled. Further, consider that a normal instruction takes one micro second, but if a page fault occurs, it takes 2001 micro seconds. If a program takes 60 sec to run, during which time it gets 15000 page faults, how long would it take to run if twice as much memory were available? (A) 60 sec (B) 30 sec (C) 45 sec (D) 10 sec

Description : Suppose that the number of instructions executed between page faults is directly proportional to the number of page frames allocated to a program. If the available memory is doubled, the mean interval between page faults is also ... memory were available? (A) 60 sec (B) 30 sec (C) 45 sec (D) 10 sec

Last Answer : Answer: C Explanation: T = Ninstr x 1µs + 15,000 x 2,000 µs = 60s Ninstr x 1µs = 60,000,000 µs - 30,000,000 µs = 30,000,000 µs Ninstr = 30,000,000 The number of instruction ... doesn't mean that the program runs twice as fast as on the first system. Here, the performance increase is of 25%.

In a paging system, it takes 30 ns to search translation Look-aside Buffer (TLB) and 90 ns to access the main memory. If the TLB hit ratio is 70%, the effective memory access time is: (1) 48 ns (2) 147 ns (3) 120 ns (4) 84 ns

Description : In a paging system, it takes 30 ns to search translation Look-aside Buffer (TLB) and 90 ns to access the main memory. If the TLB hit ratio is 70%, the effective memory access time is: (1) 48 ns (2) 147 ns (3) 120 ns (4) 84 ns

Last Answer : Answer: 2

Consider the following justifications for commonly using the two-level CPU scheduling : I. It is used when memory is too small to hold all the ready processes. II. Because its performance is same as that of the FIFO. III. Because it facilitates putting some set of processes into memory and a choice is made from that. IV. Because it does not allow to adjust the set of in-core processes. Which of the following is true ? (A) I, III and IV (B) I and II (C) III and IV (D) I and III

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Last Answer : (D) I and III