Sequential File Access Quiz

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Test key-sequence file access concepts.

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Ruth-Anna Royes

Jamaica

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Froggy Jumps Sequential File Access QuizOnline version Test key-sequence file access concepts. by Ruth-Anna Royes 1 What does sequential file access imply? a Records are accessed randomly by key b Records are read in key order c Records are stored in hashed buckets 2 In a sequential file, how are records stored? a In a fixed order by key b In a hash-based order c In random order 3 What is a major advantage of sequential access? a Instant random lookups b No I/O operations required c Simple, fast for full scans 4 What is a major drawback of sequential access? a Poor for random access b Excellent for random jumps c No performance impact 5 Which operation is efficient with sequential files? a Reading the entire file in order b Directly updating any record in place c Jumping to a specific record 6 How can you locate a specific key in a strictly sequential file? a Use a hash index b Use a direct key lookup c Scan from the start 7 What happens when inserting a new record with an ordered key? a May need to shift subsequent records b No impact to other records c Allows instant in-place insert 8 A scenario where sequential style access is the most appropriate. a Office setting: Payroll b Immediate need to access files c Frequent need for updating database. 9 How does a new record affect a tightly ordered file? a It can be inserted at any position instantly b It is automatically indexed for direct access c It may require shifting following records

Froggy Jumps

Sequential File Access QuizOnline version

Test key-sequence file access concepts.

by Ruth-Anna Royes

What does sequential file access imply?

Records are accessed randomly by key

Records are read in key order

Records are stored in hashed buckets

In a sequential file, how are records stored?

In a fixed order by key

In a hash-based order

In random order

What is a major advantage of sequential access?

Instant random lookups

No I/O operations required

Simple, fast for full scans

What is a major drawback of sequential access?

Poor for random access

Excellent for random jumps

No performance impact

Which operation is efficient with sequential files?

Reading the entire file in order

Directly updating any record in place

Jumping to a specific record

How can you locate a specific key in a strictly sequential file?

Use a hash index

Use a direct key lookup

Scan from the start

What happens when inserting a new record with an ordered key?

May need to shift subsequent records

No impact to other records

Allows instant in-place insert

A scenario where sequential style access is the most appropriate.

Office setting: Payroll

Immediate need to access files

Frequent need for updating database.

How does a new record affect a tightly ordered file?

It can be inserted at any position instantly

It is automatically indexed for direct access

It may require shifting following records

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Sequential File Access Quiz

Froggy Jumps

About this activity

Created by

Download the paper version to play

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Sequential File Access QuizOnline version

by Ruth-Anna Royes

What does sequential file access imply?

In a sequential file, how are records stored?

What is a major advantage of sequential access?

What is a major drawback of sequential access?

Which operation is efficient with sequential files?

How can you locate a specific key in a strictly sequential file?

What happens when inserting a new record with an ordered key?

A scenario where sequential style access is the most appropriate.

How does a new record affect a tightly ordered file?

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