Nt1330 Unit 51 Quiz
353 Words2 Pages
a) Message digest
b) Encryption of message
c) Encrypted message
d) None of the mentioned
Answer: c
52. What is the primary criteria of a hash function?
a) Two
b) Three
c) Four
d) None of the mentioned
Answer: b
53. What is the main limitation of Hierarchical Database?
a) Unable to hold much data
b) Limited flexibility in accessing data
c) Overhead associated with maintaining indexes
d) Organization of data in hierarchical structure is very difficult.
Answer: b
54. Which property ensures uniqueness of data?
a) Identifier
b) Foreign key
c) Primary key
d) Symmetric key
Answer: c
55. Choose the separation of the data definition from the program?
a) Data dictionary
b)
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4.11 Motor A DC motor is an electrical machine which converts electrical energy into mechanical energy. A magnetic field is generated by the current carrying conductor and when this system is placed in external magnetic field then the force is exerted which is proportional to the strength of the external magnetic field and to the current in the conductor, then motor will rotate. If the direction of current is reversed then the direction of rotation of motor will also reverse.
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A top-to-bottom relationship among the items in a database is recognized by a a) Hierarchical schema b) Network schema c) Relational schema d) None of the above Answer: a 38.
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where t^(dcc/acc/cns) is the deceleration/acceleration/constant velocity time in the respective segment (see also Figure 6), t_(s→s+1) is the jump travel time from layer part s to the next layer part s+1 at distance x, (.)_max^(process/machine) are the process/machine limits for velocity x ̇ and acceleration x ̈, kinematics at the start/end of the jump j are indicated with subscript 0/end, x ̇_j^* are the maximum velocity (lower than machine limits) during jump j. t^(dcc,1) is zero if |x_j^(dcc,1) | is smaller than |x_(s+1) | in the respective direction. t^(acc,2/cns,3/dcc,4) is zero if |x_j^(dcc,1) | equals |x_(s+1) | in the respective direction. t^(cns,3 ) is zero if x ̇_j^*< x ̇_max^machine. Figure 6 illustrates three different scenario’s
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1. Traffic control: As the data communication is the most energy-consuming part of the wireless sensor networks by decreasing the amount of traffic, energy can be saved. To distribute traffic effectively from a central node to other nodes, investigations are still needed in the network. 2. Preserve the traffic load balancing:
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The first domain for this test battery is Memory. It has 4 subtests within it. They are Episodic memory, working memory, semantic memory and delayed storytelling. A total score of 100 for this domain. Episodic memory:
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