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Recent questions tagged ugcnetdec2016ii

1 vote
2 answers
1
Match the following w.r.t. Input/Output management: List-I List-II a. Device controller i. Extracts information from the controller register and store it in data buffer b. Device driver ii. I/O scheduling c. Interrupt handler iii. Performs data transfer d. Kernel I/O subsystem iv. Processing of I/O request ... d-ii a-ii; b-i; c-iv; d-iii a-iv; b-i; c-ii; d-iii a-i; b-iii; c-iv; d-ii
asked Feb 11, 2017 in Operating System Debasmita Bhoumik 1.5k views
0 votes
2 answers
2
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 $48$ ns $147$ ns $120$ ns $84$ ns
asked Feb 11, 2017 in CO and Architecture Debasmita Bhoumik 3.4k views
0 votes
3 answers
3
There are three processes P1, P2 and P3 sharing a semaphore for synchronising a variable. Initial value of semaphore is one. Assume that negative value of semaphore tells us how many processes are waiting in queue. Processes access the semaphore in following order: P2 needs to access ... P2 exits critical section Pi exits critical section The final value of semaphore will be: $0$ $1$ $-1$ $-2$
asked Feb 11, 2017 in Operating System Debasmita Bhoumik 2.8k views
0 votes
2 answers
4
Which of the following statement(s) regarding a linker software is/are true? A function of a linker is to combine several object modules into a single load module. A function of a linker is to replace absolute references in an object module by symbolic references to locations in other modules. Only I Only II Both I and II Neither I nor II
asked Feb 11, 2017 in Others Debasmita Bhoumik 1.6k views
1 vote
3 answers
5
Consider the following statements related to compiler construction: Lexical Analysis is specified by context-free grammars and implemented by pushdown automata. Syntax Analysis is specified by regular expressions and implemented by finite-state machine. Which of the above statement(s) is/are correct? Only I Only II Both I and II Neither I nor II
asked Feb 11, 2017 in Others Debasmita Bhoumik 2.8k views
–1 vote
1 answer
6
Which of the following strings would match the regular expression: p+[3-5]*[xyz]? p443y p6y 3xyz p35z p353535x ppp5 I, III and Vl only IV, V and VI only II, IV and V only I, IV and V only
asked Feb 11, 2017 in Others Debasmita Bhoumik 1.9k views
0 votes
1 answer
7
In link state routing algorithm after construction of link state packets, new routes are computed using: DES algorithm Dijkstra’s algorithm RSA algorithm Packets
asked Feb 4, 2017 in Others Debasmita Bhoumik 2.2k views
0 votes
2 answers
8
Distance vector routing algorithm is a dynamic routing algorithm. The routing tables in distance vector routing algorithm are updated ______ automatically by server by exchanging information with neighbour nodes with back up database
asked Feb 4, 2017 in Others Debasmita Bhoumik 1.1k views
0 votes
1 answer
9
Match the following Layers and Protocols for a user browsing with SSL: a. Application of layer i. TCP b. Transport layer ii. IP c. Network layer iii. PPP d. Datalink layer iv. HTTP ... -iv; b-i; c-ii; d-iii a-iii; b-ii; c-i; d-iv a-ii; b-iii; c-iv; d-i a-iii; b-i; c-iv; d-ii
asked Feb 4, 2017 in Others Debasmita Bhoumik 738 views
0 votes
2 answers
10
If $h$ is chosen from a universal collection of hash functions and is used to hash $n$ keys into a table of size $m,$ where $n≤m,$ the expected number of collisions involving a particular key $x$ is less than _____ $1$ $1/n$ $1/m$ $n/m$
asked Feb 4, 2017 in Algorithms Debasmita Bhoumik 688 views
0 votes
1 answer
11
Which of the following is true for computation time in insertion, deletion and finding maximum and minimum element in a sorted array? Insertion-O(1), Deletion-O(1), Maximum-O(1), Minimum-O(1) Insertion-O(1), Deletion-O(1), Maximum-O(n), Minimum-O(n) Insertion-O(n), Deletion-O(n), Maximum-O(1), Minimum-O(1) Insertion-O(n), Deletion-O(n), Maximum-O(n), Minimum-O(n)
asked Feb 4, 2017 in Others Debasmita Bhoumik 1.4k views
0 votes
2 answers
12
The order of a leaf node in a B+ tree is the maximum number of children it can have. Suppose that block size is 1 kilobytes, the child pointer takes 7 bytes long and search field value takes 14 bytes long. The order of the leaf node is _________ 16 63 64 65
asked Feb 4, 2017 in Others Debasmita Bhoumik 2.9k views
0 votes
1 answer
13
Let M and N be two entities in an E-R diagram with simple single vale attributes. R1 and R2 are two relationships between M and N, whereas R1 is one-to-many and R2 is many-to-many. The minimum number of tables required to represent M, N, R1 and R2 in the relational model are _______ 4 6 7 3
asked Feb 4, 2017 in Others Debasmita Bhoumik 1.2k views
0 votes
1 answer
14
Integrity constraints ensure that changes made to the database by authorized users do not result into loss of data consistency. Which of the following statement(s) is (are) true w.r.t. the examples of integrity constraints? An instructor Id. No. cannot be null, provided Instructor Id. No. being the ... , 2 and 3 are true 1 - false; 2 and 3 are true 1 and 2 are true; 3-false 1, 2 and 3 are false
asked Feb 4, 2017 in Others Debasmita Bhoumik 1.1k views
1 vote
1 answer
15
A binary $3-bit$ down counter uses $J-K$ flip-flops, $FF_i$ with inputs $J_i, K_i$ and outputs $Q_i, i=0,1,2$ respectively. The minimized expression for the input from following is $J_0=K_0=0$ $J_0=K_0=1$ $J_1=K_1=Q_0$ $J_1=K_1=Q’_0$ $J_2=K_2=Q_1Q_0$ $J_2=K_2=Q’_1Q’_0$ I, III, V I, IV, VI II, III, V II, V, VI
asked Feb 4, 2017 in Digital Logic Debasmita Bhoumik 3k views
2 votes
2 answers
16
In propositional logic, if $(P→Q)\wedge (R→S)$ and $(P\vee R)$ are two premises such that $Y$ is the premise: $\begin{array}{c}( P \rightarrow Q) \wedge ( R \rightarrow S) \\ P \vee R \\ \hline \\ Y \\ \hline \end{array}$ $P\vee R$ $P\vee S$ $Q\vee R$ $Q\vee S$
asked Feb 4, 2017 in Mathematical Logic Debasmita Bhoumik 2.8k views
1 vote
3 answers
17
Consider a Hamiltonian Graph $G$ with no loops or parallel edges and with $|V(G)|=n≥3.$ Then which of the following is true? $deg(v) ≥ n/2$ for each vertex $v$ $|E(G)| ≥ 1/2(n-1)(n-2)+2$ $deg(v)+deg(w) ≥ n$ whenever $v$ and $w$ are not connected by an edge All of the above
asked Feb 4, 2017 in Graph Theory Debasmita Bhoumik 2k views
0 votes
2 answers
18
How many multiples of $6$ are there between the following pairs of numbers? $0$ and $100$ and $-6$ and $34$ $16$ and $6$ $17$ and $6$ $17$ and $7$ $16$ and $7$
asked Feb 4, 2017 in Set Theory & Algebra Debasmita Bhoumik 1.5k views
0 votes
2 answers
19
The functions mapping $R$ into $R$ are defined as: $f(x) = x^3-4x, g(x)=1/(x^2+1)$ and $h(x)=x^4$ Then find the value of the following composite functions: $hog(x)$ and $hogof(x)$ $(x^2+1)^4$ and $[(x^3-4x)^2+1]^4$ $(x^2+1)^4$ and $[(x^3-4x)^2+1]^{-4}$ $(x^2+1)^{-4}$ and $[(x^3-4x)^2+1]^4$ $(x^2+1)^{-4}$ and $[(x^3-4x)^2+1]^{-4}$
asked Feb 4, 2017 in Set Theory & Algebra Debasmita Bhoumik 1.5k views
0 votes
1 answer
20
Match the following: List-I List-II a. Absurd i. Clearly impossible being contrary to some evident truth b. Ambiguous ii. Capable of more than one interpretation or meaning c. Axiom iii. An assertion that is accepted and used without a proof d. Conjecture iv. An opinion Preferably based on some experience or wisdom \begin ... -iv a-i; b-iii; c-iv; d-ii a-ii; b-iii; c-iv; d-i a-ii; b-i; c-iii; d-iv
asked Feb 4, 2017 in Mathematical Logic Debasmita Bhoumik 787 views
0 votes
2 answers
21
Consider a sequence $F_{00}$ defined as: $F_{00} (0) = 1, \: F_{00}(1)=1$ $F_{00}(n) = \frac{10*F_{00}(n-1)+100}{F_{00}(n-2)} \text{ for } n \geq 2$ Then what shall be the set of values of the sequence $F_{00}$? (1, 110, 1200) (1, 110, 600, 1200) (1, 2, 55, 110, 600, 1200) (1, 55, 110, 600, 1200)
asked Feb 4, 2017 in Unknown Category Debasmita Bhoumik 1.5k views
0 votes
2 answers
22
Which of the following statements is/are true w.r.t. Enterprise Resource Planning (ERP)? ERP automates and integrates majority of business processes. ERP provides access to information in a Real Time Environment. ERP is inexpensive to implement. a, b and c are false. a and b false; c true. a and b true; c false a true; b and c are false
asked Jan 30, 2017 in Others Arjun 650 views
0 votes
2 answers
23
In 3G network, W-CDMA is also known as UMTS. The minimum spectrum allocation required for W-CDMA is 2 MHz 20 KHz 5 KHz 5 MHz
asked Jan 30, 2017 in Others Arjun 972 views
0 votes
3 answers
24
Which of the following is/are true w.r.t. applications of mobile computing? Travelling of salesman Location awareness services a true; b false Both a and b are true Both a and b are false a false; b true
asked Jan 30, 2017 in Others Arjun 661 views
0 votes
3 answers
25
_______ refers loosely to the process of semi-automatically analysing large databases to find useful patterns. Datamining Data Warehousing DBMS Data mirroring
asked Jan 30, 2017 in Others Arjun 586 views
0 votes
1 answer
26
Match the following: List-I List-II a. Affiliate marketing i. Vendors ask partners to place logos on partner's site. If customers click, come to vendors and buy b. Viral Marketing ii. Spread your brand on the net by word-of-mouth. Receivers will send your information to their friends c. Group Purchasing iii. Aggregating ... d-iv a-iii; b-ii; c-iv; d-i a-ii; b-iii; c-iv; d-i a-ii; b-iii; c-i; d-iv
asked Jan 30, 2017 in Others Arjun 513 views
0 votes
1 answer
27
A software design pattern used to enhance the functionality of an object at run-time is: Adapter Decorator Delegation Proxy
asked Jan 30, 2017 in Others Arjun 1.4k views
0 votes
2 answers
28
The Prototyping model of software development is: a reasonable approach when requirements are well-defined. a useful approach when a customer cannot define requirements clearly. the best approach to use for projects with large development teams. a risky model that rarely produces a meaningful product.
asked Jan 30, 2017 in Others Arjun 650 views
0 votes
3 answers
29
Which of the following statement(s) is/are true with respect to software architecture? S1: Coupling is a measure of how well the things grouped together in a module belong together logically. S2: Cohesion is a measure of the degree of interaction between software modules. S3: If ... it is easier to change one module without affecting others. Only S1 and S2 Only S3 All of S1, S2 and S3 Only S1
asked Jan 30, 2017 in Others Arjun 1.1k views
0 votes
2 answers
30
Which of the following is not one of three software product aspects addressed by McCall’s software quality factors? Ability to undergo change Adaptability to new environments Operational characteristics Production costs and scheduling
asked Jan 30, 2017 in Others Arjun 1.4k views
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