Question Page 290

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You Are On Question Answer Bank SET 290

14501. What is the default port number of DNS?

Answer: 53

14502. DAT is an acronym for:

Answer: Digital Audio Tape.

14503. In a rule-based system, procedural domain knowledge is in the form of :

Answer: Production Rules.

14504. An AI technique that allows computers to understand associations and relationships between objects and events is called:

Answer: Pattern matching.

14505. Command used in SQL to remove an index from the database:

Answer: DROP INDEX.

14506. The process of cleaning junk data is called:

Answer: Data purging.

14507. URL stands for:

Answer: Uniform Resource Locator.

14508. Context Free Grammar is also called:

Answer: Type 2 grammar.

14509. Recursive languages can be recognized using:

Answer: Turing Machine.

14510. In which part of Compiler, the concept of FSA is used?

Answer: Lexical analysis.

14511. Languages that can be recognized by FSA is called:

Answer: Regular languages.

14512. Languages of Type 1 grammars can be recognized using:

Answer: Linear Bounded Automata.

14513. If the start symbol S of a given CFG G is useless, then L(G) is :

Answer: Empty.

14514. Decimal equivalent of the signed binary number 11110101 in 1’s complement form is :

Answer: -10

14515. Minimum number of AND gates required to implement the Boolean expression:ABC’ +AB’C +A’BC is

Answer: Ans: 2.

14516. Looping on a K-map always results in the elimination of :

Answer: Variables within the loop that appear in both complemented and uncomplemented form.

14517. In Boolean algebra, x+xy =x is called:

Answer: Absorption Law.

14518. A document preparation software:

Answer: LATEX.

14519. A technique in which system resources are shared among multiple users:

Answer: Multiplexing.

14520. Interaction modelling cannot be done using:

Answer: State Diagrams.

14521. The number of bits that can be transmitted over a network in a certain period of time.

Answer: Bandwidth.

14522. A network topology that combines features of linear bus and star topology?

Answer: Tree.

14523. If language L={0,1}, then the reversed language LR =

Answer: (0, 1}

14524. In Linux, the subdirectory that contains system configuration files including user passwords:

Answer: /etc.

14525. SQL command to delete a column from an existing table:

Answer: Alter table.

14526. A technique not associated with data mining:

Answer: Dimensionality Modelling.

14527. Memory bank experiencing too much contention from processor:

Answer: Thrash.

14528. T he number of nodes in a complete binary tree of height n:

Answer: 2 n+1 -1

14529. The science and art of breaking ciphers:

Answer: Steganography.

14530. A raster scan display system with 24 bits per pixel and a screen resolution of 1024x 1024 requires a frame buffer of size:

Answer: 3 Mega bytes.

14531. Process of mapping a network interface IP address to its hardware address:

Answer: ARP

14532. Data abstractions means:

Answer: Putting together essential feature without including background details.

14533. A hardware interface that allows for the connection of several peripheral devices to a single PCI board:

Answer: SCSI

14534. If n represents the dimension of cube and k, the radix(no. of nodes along each dimensions. then the number of nodes N of a K-ary n –cube network is :

Answer: N=kn

14535. A famous technique used in data ware housing:

Answer: OLAP.

14536. The environment variable in Linux , that contain a list of directories the shell automatically recognizes:

Answer: $ PATH.

14537. In C++ , a pointer that is automatically being passed to a member function during its invocation is :

Answer: this pointer.

14538. With QBE, inserting records from one or more source tables into a single target table can be achieved by :

Answer: Append action query.

14539. When a process is accessing shared modifiable data , the process is said to be in:

Answer: Critical section.

14540. The first MPI function call made by every MPI Process is the call to :

Answer: MPI _ Init ( ..

14541. Boundary value analysis is a method for :

Answer: Black box testing.

14542. Dijkstra’s Banker’s algorithm is used for :

Answer: Deadlock Avoidance.

14543. (P v q.≡ p q a famous law in logic known as :

Answer: De morgans’ law.

14544. The language accepted by a push down automata:

Answer: Type 2.

14545. In parallel algorithm design, the process of grouping tasks into larger tasks in order to improve performance :

Answer: Agglomeration.

14546. A system call in Linux operating system to create a new child process, which is a copy of the parent process:

Answer: Fork.

14547. The type of geometric transformation applied to an object for repositioning it along a straight line path from one location to another:

Answer: Translation.

14548. Vignere cipher is a kind of:

Answer: Poly alphabetic cipher.

14549. Recursive Descent parsers are a type of :

Answer: L L parsers.

14550. In a compiler the task of scanning the source code, to recognize and classify various elements is known as:

Answer: Lexical Analysis.

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