- When transmission speeds and capacity in a network prohibit frequent refreshing of large tables.
- When using many nodes with different operating systems and DBMSs and database designs.
- The application's data can be somewhat out-of-date.
- All of the above.
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When the values in one or more attributes being used as a foreign key must exist in another set of one or more attributes in another table, we have created a(n):?
Answer: Option 3 A referential integrity constraint is defined as part of an association between two entity types. The definition for a referential integrity constraint specifies the following information: The...
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Synchronization for pull replication is less disruptive and occurs only when needed by each site, not when a central master site thinks it is best to update.?
Answer: Option 1 Let'
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Directions : Following question consists of a statement followed by four arguments I, II, III and IV. You have to decide which of the arguments is a STRONG arguments and which is a WEAK Argument. Statement : Should the rule of wearing helmet for both driver and pillion rider while driving a motor bike be enforced strictly Arguments : I. Yes. It is a rule and rules should be followed strictly by all. II. No. Each individual knows how to protect his own life and it should be left to his discretion. III. No. It does not ensure safety as only the head is protected and rest of the body is not. IV. Yes. It is a necessity as head, being the most sensitive organ, is protected by the helmet.?
Answer: Option 3 Clearly, the rule has been devised for the safety of two-wheeler riders, as majority of two wheeler accidents result in direct fall of the rider, leading to...
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If no multivalued attributes exist and no partial dependencies exist in a relation, then the relation is in what normal form?
Answer: Option 2 Let'
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Data replication is favored where most process requests are read-only and where the data are relatively static.?
Answer: Option 1 Let'
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Directions : In each of the following questions a statement is given, followed by two conclusions. Give answer : Statement : Today I must satisfy myself only by looking at a pink headed duck in an encyclopedia. Assumptions : I. Pink headed ducks are as good as extinct now. II. People refer to encyclopedia to know only about things which do not exist now.?
Answer: Option 1 Since the narrator talks of satisfying himself by just looking at a picture in encyclopaedia, it means that pink headed ducks are not to be seen alive....
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Directions : Following question consists of a statement followed by three arguments I, II and III . You have to decide which of the arguments is a STRONG arguments and which is a WEAK Argument. Statement : Should the income generated out of agricultural activities be taxed Arguments : I. No. Farmers are otherwise suffering from natural calamities and low yield coupled with low procurement price and their income should not be taxed. II. Yes. Majority of the population is dependent on agriculture and hence their income should be taxed to augment the resources. III. Yes. Many big farmers earn much more than the majority of the service earners and they should be taxed to remove the disparity.?
Answer: Option 3 Clearly, if the income of farmers is not adequate, they cannot be brought under the net of taxation as per rules governing the Income Tax Act. So,...
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It is disease which used to exist in the past in most countries of old world.?
Answer: Option 2 Malaria used to exist in the past in most countries of old world.
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In which of the following chlorophyll does not exist?
Answer: Option 2 Algae, Bryophytes and Pteridophytes are true plants and contain chlorophyll . While fungi have characteristics that put this kingdom more close to animals, one of the features...
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