1) Where can a subschema be used?
a. Present information in different formats
b. Create very different personalized view of the same data
c. Hide sensitive information
d. All of the above
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Answer
Explanation
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ANSWER: Hide sensitive information
Explanation:
No explanation is available for this question!
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2) What is used to delete an entire file except for a file structure?
a. Eraser
b. Pack
c. Delete
d. Zap
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Answer
Explanation
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ANSWER: Zap
Explanation:
No explanation is available for this question!
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3) Data items are composed of data elements.
a. True
b. False
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Answer
Explanation
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ANSWER: False
Explanation:
No explanation is available for this question!
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4) What is the maximum length of a field name?
a. 10 characters
b. 30 characters
c. 50 characters
d. 20 characters
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Answer
Explanation
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ANSWER: 10 characters
Explanation:
No explanation is available for this question!
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5) What is the generalization of functional dependencies?
a. Database dependencies
b. Key dependencies
c. Relation dependencies
d. None of these
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Answer
Explanation
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ANSWER: Key dependencies
Explanation:
No explanation is available for this question!
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6) What is a network structure?
a. Dominant database.
b. Is physical representation of data
c. Many to many relationship
d. Is conceptually simple
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Answer
Explanation
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ANSWER: Many to many relationship
Explanation:
No explanation is available for this question!
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7) Which command permanently deletes the record from database?
a. PACK
b. ZAP
c. SEEK
d. SKIP
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Answer
Explanation
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ANSWER: PACK
Explanation:
No explanation is available for this question!
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8) Which strategy of memory allocation yields the smallest free block size greater than or equal to the requested size?
a. First - fit
b. Best - fit
c. Worst - fit
d. Next - fit
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Answer
Explanation
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ANSWER: Best - fit
Explanation:
No explanation is available for this question!
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9) Which type of linked list / s comprise / s a node containing a pointer to predecessor as well as successor?
a. Doubly Linked List
b. Circular Linked List
c. Both a & b
d. None of the above
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Answer
Explanation
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ANSWER: Both a & b
Explanation:
No explanation is available for this question!
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10) Traversal of a linked list always starts from the __________.
a. First Node
b. Middle Node
c. Last Node
d. None of the Above
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Answer
Explanation
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ANSWER: First Node
Explanation:
No explanation is available for this question!
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11) Which type of linked list comprises the adjacently placed first and the last elements?
a. Singly Linked List
b. Doubly Linked List
c. Circular Linked List
d. All of the above
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Answer
Explanation
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ANSWER: Circular Linked List
Explanation:
No explanation is available for this question!
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12) Which extra element / s is / are present at the head of the list?
a. Antinel
b. Sentinel
c. Both a & b
d. None of the above
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Answer
Explanation
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ANSWER: Sentinel
Explanation:
No explanation is available for this question!
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13) What does a node possessing zero degree in Trees known as?
a. Branch Node
b. Root Node
c. Leaf Node
d. Trunk Node
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Answer
Explanation
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ANSWER: Leaf Node
Explanation:
No explanation is available for this question!
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14) How is the failure node represented by replacing each empty subtree in an Extended Binary Tree ?
a. *
b. Δ
c. o
d. □
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Answer
Explanation
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ANSWER: □
Explanation:
No explanation is available for this question!
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15) What would happen if the balance factor of a node in an AVL tree is ' 1 '?
a. Heights of left and right subtrees become equal
b. Height of left subtree is one more than the height of right subtree
c. Height of left subtree is one less than the height of right tree
d. None of the Above
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Answer
Explanation
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ANSWER: Height of left subtree is one more than the height of right subtree
Explanation:
No explanation is available for this question!
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16) What do the leaves of an expression tree represent?
a. Operand
b. Operator
c. Operation
d. All of the Above
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Answer
Explanation
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ANSWER: Operand
Explanation:
No explanation is available for this question!
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17) A semantic web allows data to be shared and reused across applications, enterprises, and communities.
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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18) Abbreviate CSS.
a. Classical Style Sheets
b. Cascading Style Sheets
c. Common Style Sheets
d. Cascading Symbol Sheets
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Answer
Explanation
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ANSWER: Cascading Style Sheets
Explanation:
No explanation is available for this question!
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19) Which of the following statement is / are true about a canvas?
a. It is a rectangular area on an HTML page
b. By default it does have no borders and content
c. Always specify the height and the width to define the size
d. All of the above
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Answer
Explanation
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ANSWER: All of the above
Explanation:
No explanation is available for this question!
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20) Abbreviate SVG.
a. Scalable Vector Graphics
b. Segmented Variable Graphics
c. Scalable Variable Graphics
d. Segmented Variable Graphics
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Answer
Explanation
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ANSWER: Scalable Vector Graphics
Explanation:
No explanation is available for this question!
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21) Does HTML5 support multimedia?
a. yes
b. no
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Answer
Explanation
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ANSWER: yes
Explanation:
No explanation is available for this question!
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22) Which of the following statements is / are related to a stub network?
a. A network with only one entry and exit point.
b. A network with only one entry and no exit point.
c. A network with more than one exit and entry point
d. A network with more than one exit point.
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Answer
Explanation
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ANSWER: A network with only one entry and exit point.
Explanation:
No explanation is available for this question!
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23) What kind of task does VLAN do in a network?
a. It provides multiple broadcast domains within a single collision domain.
b. It breaks up the broadcast domains in a layer 2 switch internetwork.
c. It acts as the fastest port to all servers.
d. It provides multiple collision domains.
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Answer
Explanation
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ANSWER: It breaks up the broadcast domains in a layer 2 switch internetwork.
Explanation:
No explanation is available for this question!
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24) Which layer of TCP / IP stack is equivalent to the transport layer of the OSI model?
a. Network Access
b. Internet
c. Host - to - Host
d. Application
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Answer
Explanation
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ANSWER: Host - to - Host
Explanation:
No explanation is available for this question!
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25) The private IP address is _________.
a. 192.168.24.43
b. 172.14.15.36
c. 168.192.19.40
d. 12.0.0.1
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Answer
Explanation
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ANSWER: 192.168.24.43
Explanation:
No explanation is available for this question!
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26) We have a uniprocessor machine where a set of n tasks with known run times r1, r2, r3,….rn are to be run. What will be the maximum throughput result of the processor scheduling algorithm?
a. Shortest Job First
b. First Come First Served
c. Round Robin
d. Highest Response Ratio Next
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Answer
Explanation
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ANSWER: Shortest Job First
Explanation:
No explanation is available for this question!
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27) Three CPU intensive processes requires 10, 20 and 30 time units and arrive at times 0, 2 and 6 respectively. The operating system implements a shortest remaining time first scheduling algorithm. Considering that the context switches at time zero and at the end are not counted the number of context switches are needed is ______.
a. 4
b. 3
c. 2
d. 1
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Answer
Explanation
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ANSWER: 2
Explanation:
No explanation is available for this question!
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28) What is the non - preemptive scheduling algorithm?
a. Multilevel queue scheduling with feedback
b. Multilevel queue scheduling
c. First - In - First - Out
d. Round Robin
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Answer
Explanation
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ANSWER: First - In - First - Out
Explanation:
No explanation is available for this question!
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29) Where does the swap space reside?
a. Disk
b. ROM
c. RAM
d. On - chip cache
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Answer
Explanation
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ANSWER: Disk
Explanation:
No explanation is available for this question!
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30) A system that uses FIFO page replacement policy has 4 page frames with no pages loaded initially. 100 distinct pages are accessed by the system in some order and then the same 100 pages are accessed in the reverse order. How many page faults will occur?
a. 193
b. 194
c. 195
d. 196
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Answer
Explanation
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ANSWER: 196
Explanation:
No explanation is available for this question!
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