Related InterviewSolutions

• Which of the following statements is/are TRUE regarding JAVA ?(a) Constants that cannot be changed are declared using the ‘static’ keyword.(b) A class can only inherit one class but can implement multiple interfaces.(A) Only (a) is TRUE.(B) Only (b) is TRUE.(C) Both (a) and (b) are TRUE.(D) Neither (a) nor (b) are TRUE.
• What is the output of the following JAVA program ?Class Test {public static void main(String[] args) {Test obj = new Test();obj.start();}void start() {String stra = ”do”;String strb = method(stra);System.out.print(“: ”+stra + strb);}String method(String stra) {stra = stra + ”good”;System.out.print(stra);return“ good”;}}(A) dogood : dogoodgood(B) dogood : gooddogood(C) dogood : dodogood(D) dogood : dogood
• Which of the following statements is/are TRUE ?(a) In HTML, character entities are used to incorporate external content into a web page, such as images.(b) Once a web server returns a cookie to a browser, the cookie will be included in all future requests from the browser to the same server.(A) Only (a) is TRUE.(B) Only (b) is TRUE.(C) Both (a) and (b) are TRUE.(D) Neither (a) nor (b) is TRUE.
• In 8085 microprocessor the address bus is of __________ bits.(A) 4(B) 8(C) 16(D) 32
• If a file consisting of 50,000 characters takes 40 seconds to send, then the data rate is __________.(A) 1 kbps(B) 1.25 kbps(C) 2 kbps(D) 10 kbps
• A micro-instruction format has micro-ops field which is divided into three subfields F1, F2, F3 each having seven distinct micro-operations, condition field CD for four status bits, branch field BR having four options used in conjunction with address field ADF. The address space is of 128 memory locations. The size of micro-instruction is:(A) 17(B) 20(C) 24(D) 32
• Consider the following four schedules due to three transactions (indicated by the subscript) using read and write on a data item X, denoted by r(X) and w(X) respectively. Which one of them is conflict serializable ?S1: r1(X); r2(X); w1(X); r3(X); w2(X)S2: r2(X); r1(X); w2(X); r3(X); w1(X)S3: r3(X); r2(X); r1(X); w2(X); w1(X)S4: r2(X); w2(X); r3(X); r1(X); w1(X)(A) S1(B) S2(C) S3(D) S4
• Suppose a database schedule S involves transactions T1, T2, ………….,Tn. Consider the precedence graph of S with vertices representing the transactions and edges representing the conflicts. If S is serializable, which one of the following orderings of the vertices of the precedence graph is guaranteed to yield a serial schedule ?(A) Topological order(B) Depth – first order(C) Breadth – first order(D) Ascending order of transaction indices
• If every non-key attribute is functionally dependent on the primary key, then the relation is in __________ .(A) First normal form(B) Second normal form(C) Third normal form(D) Fourth normal form
• Consider a relation R (A, B, C, D, E, F, G, H), where each attribute is atomic, and following functional dependencies exist.CH → GA → BCB → CFHE → AF → EGThe relation R is __________ .(A) in 1NF but not in 2NF(B) in 2NF but not in 3NF(C) in 3NF but not in BCNF(D) in BCNF