1) Abbreviate ACID.
a. Atomicity, Consistency, Isolation, Durability
b. Atomicity, Concurrency, Isolation, Duplicity
c. Aggregation, Consistency, Isolation, Durability
d. Atomicity, Consistency, Identity, Durability
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Answer
Explanation
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ANSWER: Atomicity, Consistency, Isolation, Durability
Explanation:
No explanation is available for this question!
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2) What data structure is used to construct a Prev LSN in a database log?
a. Queue
b. Link List
c. Graph
d. Tree
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Answer
Explanation
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ANSWER: Link List
Explanation:
No explanation is available for this question!
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3) What stores the metadata about the structure of the database, in particular the schema of the database?
a. Indices
b. Database log
c. Data files
d. Data Dictionary
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Answer
Explanation
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ANSWER: Data Dictionary
Explanation:
No explanation is available for this question!
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4) Which of the following language is used to define the integrity constraints?
a. DCL
b. DML
c. DDL
d. All of the above
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Answer
Explanation
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ANSWER: DDL
Explanation:
No explanation is available for this question!
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5) How many primary key can a table in database have?
a. Only one
b. At least one
c. More than one
d. Any number of
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Answer
Explanation
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ANSWER: Only one
Explanation:
No explanation is available for this question!
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6) Generalization is a bottom up design process that combines a number of entity sets, which share the same features into a higher level entity set.
a. True
b. False
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Answer
Explanation
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ANSWER: True
Explanation:
No explanation is available for this question!
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7) What does a query processor do in semantic checking?
a. Checks whether all the relations mentioned under the FROM clause in the SQL statement are from the database the user is referenced.
b. Checks all the attribute values and also checks whether they exist in a particular relation that is specified in the query. It checks all the attribute values that are mentioned in the SELECT and WHERE clauses of the SQL statement.
c. Verifies whether the types of attributes are compatible with the values used for the attributes.
d. All of these.
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Answer
Explanation
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ANSWER: All of these.
Explanation:
No explanation is available for this question!
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8) Which is the correct algorithmic sequence for the conversion of an expression from Infix to Prefix?
A. Change of every '(' (opening bracket) by ')' (closing bracket) and vice-versa.
B. Reversal of an infix expression.
C. Conversion of the modified expression into postfix form.
D. Reversal of postfix expression.
a. A, B, C, D
b. C, A, D, B
c. B ,A, C, D
d. D, B, A, C
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Answer
Explanation
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ANSWER: B ,A, C, D
Explanation:
No explanation is available for this question!
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9) Which expressions are also regarded as ' Reverse Polish Notations '?
a. Prefix
b. Postfix
c. Infix
d. All of the above
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Answer
Explanation
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ANSWER: Postfix
Explanation:
No explanation is available for this question!
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10) What should be the growing direction of two stacks while implementing them in a similar array so as to reduce the overflow chances?
a. Forward
b. Backward
c. Opposite
d. None of the above
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Answer
Explanation
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ANSWER: Opposite
Explanation:
No explanation is available for this question!
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11) How many elements are present in the stack if the variable top exhibits pointing towards the topmost element in the Array?
a. top +1
b. top - 1
c. zero
d. infinite
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Answer
Explanation
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ANSWER: top +1
Explanation:
No explanation is available for this question!
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12) Which data structures find their applications in BFS and DFS Traversal mechanisms on a Tree respectively?
a. Graph & Stack
b. Queue & Stack
c. Queue & Graph
d. None of the Above
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Answer
Explanation
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ANSWER: Queue & Stack
Explanation:
No explanation is available for this question!
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13) How do the nested calls of the function get managed?
a. Through Queues
b. Through Stacks
c. Through Trees
d. Through Graphs
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Answer
Explanation
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ANSWER: Through Stacks
Explanation:
No explanation is available for this question!
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14) Which step is associated with an initialization process while converting a recursive into non - recursive algorithm?
a. Declaration of Stack
b. Pushing of all local variables and parameters into the stack
c. Assigning the values of formal parameters
d. Popping of return address
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Answer
Explanation
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ANSWER: Declaration of Stack
Explanation:
No explanation is available for this question!
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15) Stacks do not find their applicability for ____________.
a. Simplification of an arithmetic expression in postfix form
b. Recursion Implementation
c. Conversion of Infix to its equivalent Postfix Form
d. Allocation of Resources by an Operating System
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Answer
Explanation
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ANSWER: Allocation of Resources by an Operating System
Explanation:
No explanation is available for this question!
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16) Which function plays an important role in returning the address of memory block allocated to locate / store a node especially while declaring ' top ' in the linked representation of the Stack?
a. galloc ()
b. falloc ()
c. malloc ()
d. calloc ()
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Answer
Explanation
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ANSWER: malloc ()
Explanation:
No explanation is available for this question!
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17) A simple text file which tells the browser what to cache is known as a ________.
a. Input files
b. HTML file
c. A manifest file
d. Output files
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Answer
Explanation
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ANSWER: A manifest file
Explanation:
No explanation is available for this question!
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18) What is a web worker?
a. It helps in executing the tags on the page
b. It is a JavaScript running in the background without affecting the performance of the page
c. It is a functional tool
d. None of the above
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Answer
Explanation
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ANSWER: It is a JavaScript running in the background without affecting the performance of the page
Explanation:
No explanation is available for this question!
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19) Which object is used to receive the server - sent event notifications?
a. source.onmessage
b. getElementById
c. EventSource
d. echo
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Answer
Explanation
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ANSWER: EventSource
Explanation:
No explanation is available for this question!
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20) Which CSS property sets a background image for an element?
a. background
b. background - attachment
c. background - color
d. background - image
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Answer
Explanation
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ANSWER: background - image
Explanation:
No explanation is available for this question!
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21) Which CSS property is used with the direction property to set or return whether the text should be overridden to support multiple languages in the same document?
a. unicode - bidi
b. color
c. line - height
d. direction
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Answer
Explanation
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ANSWER: unicode - bidi
Explanation:
No explanation is available for this question!
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22) Why do we use flow control in the network?
a. It reassemble segments in the correct order at the destination device.
b. It ensures that data is retransmitted if an acknowledgment is not received.
c. It regulate the size of each segment.
d. It provides a means for the receiver to govern the amount of data sent by the sender.
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Answer
Explanation
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ANSWER: It provides a means for the receiver to govern the amount of data sent by the sender.
Explanation:
No explanation is available for this question!
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23) _________ allows a router to respond to an ARP request that is intended for a remote host.
a. Inverse ARP (IARP)
b. Gateway DP
c. Reverse ARP (RARP)
d. Proxy ARP
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Answer
Explanation
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ANSWER: Proxy ARP
Explanation:
No explanation is available for this question!
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24) Which is the correct order when the data is encapsulated?
a. Data, Segment, Frame, Packet, Bit
b. Data, Segment, Packet, Frame, Bit
c. Segment, Data, Packet, Frame, Bit
d. Data, Frame, Packet, Segment, Bit
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Answer
Explanation
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ANSWER: Data, Segment, Packet, Frame, Bit
Explanation:
No explanation is available for this question!
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25) Which of the following is the type of RJ45 UTP cable that is used between switches?
a. Twisted Pair Cable
b. Serial and Parallel Cable
c. Crossover Cable
d. Straight - through Network Cable
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Answer
Explanation
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ANSWER: Crossover Cable
Explanation:
No explanation is available for this question!
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26) An operating system maintains smaller data structures for a thread than a process, as a thread is usually defined as a ‘ light weight process ’. What is the per thread basis of the operating system?
a. Does not maintain a separate stack
b. Maintains only CPU register state.
c. Does not maintain a virtual memory state
d. Maintains only scheduling and accounting information
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Answer
Explanation
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ANSWER: Maintains only scheduling and accounting information
Explanation:
No explanation is available for this question!
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27) Which of the following statements are true?
a. Shortest remaining time first scheduling may cause starvation
b. Starvation may be caused by preemptive scheduling.
c. In terms of response time robin round is better than FCFS
d. All of the above statements are true
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Answer
Explanation
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ANSWER: All of the above statements are true
Explanation:
No explanation is available for this question!
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28) Which is the system call that is responsible for sending of SYN packets?
a. Bind
b. Socket
c. Connect
d. Listen
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Answer
Explanation
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ANSWER: Connect
Explanation:
No explanation is available for this question!
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29) Which of the following statements is true for the dirty page in a page table?
a. Helps to maintain LRU information
b. Allows only read on a page
c. Helps to avoid unnecessary writes on paging device
d. None of the above
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Answer
Explanation
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ANSWER: Helps to avoid unnecessary writes on paging device
Explanation:
No explanation is available for this question!
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30) Which is the device that should get the highest priority in assigning the interrupts?
a. Floppy disk
b. Hard disk
c. CPU temperature sensor
d. Keyboard
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Answer
Explanation
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ANSWER: CPU temperature sensor
Explanation:
No explanation is available for this question!
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