Questions
1
Consider the following schemas : Branch_Schema = (branch_name, assets, city) Customer_Schema = (cutstomer_name, street, city) Deposit_Schema = (branch_name, account_number, customer_name, balance) Borrow_Schema = (branch_name, loan_number, customer_name, amount) Which of the following tuple relational calculus finds all customers who have loan amount more than ` 12,000 ?
Answer: Option [A]
2
Sixty (60) reusable components were available for an application. If only 70% of these components can be used, rest 30% would have to be developed from scratch. If average component is 100 LOC and cost of each LOC is ` 14, what will be the risk exposure if risk probability is 80% ?
Answer: Option [B]
3
Consider the following two function declarations : (i) int *f( ) (ii) int (*f)( ) Which of the following is true ?
Answer: Option [D]
4
Assume that we have constructor function for both Base and Derived classes. Now consider the declaration : main ( ) Base *p = new Derived; In what sequence, the constructor will be executed ?
Answer: Option [A]
5
MPEG involves both spatial compression and temporal compression. The spatial compression is similar to JPEG and temporal compression removes ______ frames.
Answer: Option [B]
6
If the data unit is 111111 and the divisor is 1010. In CRC method, what is the dividend at the transmission before division ?
Answer: Option [B]
7
If user A wants to send an encrypted message to user B. The plain text of A is encrypted with the _______.
Answer: Option [B]
8
A _____ can forward or block packets based on the information in the network layer and transport layer header.
Answer: Option [B]
9
Which of the following graphics devices are known as active graphics devices ? (i) Alphanumeric devices (ii) Thumb wheels (iii) Digitizers (iv) Joystics
Answer: Option [B]
10
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 ?
Answer: Option [B]
11
Which of the following is/are fundamental method(s) of antialiasing ? (i) Increase of sample rate. (ii) Treating a pixel as a finite area rather than as a point. (iii) Decrease of sample rate.
Answer: Option [A]
13
Consider the following sequence of operations : (i) Pointer p1 is set to point at a new heap-dynamic variable. (ii) Pointer p2 is assigned p1’s value. (iii) The heap dynamic variable pointed to by p1 is explicitly de-allocated, but p2 is not changed by the operation. This situation leads to which of the following :
Answer: Option [D]
14
The programming languages C and C++ are not strongly typed languages because :
Answer: Option [A]
15
The tracing model in Prolog describes program execution in terms of certain events. These events are
Answer: Option [B]
16
Given 0-1 knapsack problem and fractional knapsack problem and the following statements : S 1 : 0-1 knapsack is efficiently solved using Greedy algorithm. S 2 : Fractional knapsack is efficiently solved using Dynamic programming. Which of the following is true ?
Answer: Option [B]
17
A system contains 10 units of resource of same type. The resource requirement and current allocation of these resources for three processes P, Q and R are as follows : P Q R Maximum requirement 8 7 5 Current allocation 4 1 3 Now, consider the following resource requests : (i) P makes a request for 2 resource units. (ii) Q makes request for 2 resources units. (iii) R makes a request of 2 resource units. For a safe state, which of the following options must be satisfied ?
Answer: Option [B]
18
Consider a main memory with 3 page frames for the following page reference string : 5, 4, 3, 2, 1, 4, 3, 5, 4, 3, 4, 1, 4 Assuming that the execution of process is initiated after loading page 5 in memory, the number of page faults in FIFO and second chance replacement respectively are
Answer: Option [B]
19
Which of the following shell scripts will produce the output “my first script” ?
Answer: Option [B]
20
The portion of Windows 2000 operating system which is not portable is
Answer: Option [B]
