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Q:

Define latency, transfer and seek time with respect to disk I/O.

Answer

Seek time is the time required to move the disk arm to the required track. Rotational delay or latency is the time it takes for the beginning of the required sector to reach the head. Sum of seek time (if any) and latency is the access time. Time taken to actually transfer a span of data is transfer time.

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Subject: Operating Systems

Q:

Josh borrowed $250 from his mother to buy an electric scooter. Josh will pay her back in 1 year with 3% simple annual interest. How much interest will Josh pay?

A) 7.50	B) 8.50
C) 9.50	D) 10.50

Answer & Explanation Answer: A) 7.50

Explanation:

I=prt/100

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Filed Under: Compound Interest
Exam Prep: Bank Exams
Job Role: Bank PO

Q:

Jason decides to borrow money for a holiday. If a personal loan is taken over 4 years with equal quarterly repayments at 12% p.a. flat rate (simple interest), calculate the effective rate of interest.

A) 22,588	B) 32.588
C) 42.588	D) 43.588

Answer & Explanation Answer: A) 22,588

Explanation:

Flat rate = 12%
n = 4 × 4
= 16

Effective rate =2n/(n+1) × flat rate

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Filed Under: Simple Interest
Exam Prep: Bank Exams
Job Role: Bank PO

Q:

A sapphire ring with a marked price of $1800 is offered to the purchaser on the following terms: $200 deposit and the balance to be paid over 24 equal monthly instalments with interest charged at 11.5% p.a. flat rate. Find the monthly repayments

A) $53	B) $42
C) $62	D) $82

Answer & Explanation Answer: D) $82

Explanation:

Total repayment amount = $1600 + $368
= $1968
= $82

regular payment= total amount/number of repayments

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Filed Under: Simple Interest
Exam Prep: Bank Exams
Job Role: Bank PO

Q:

Jan invested $210 with a building society in a fixed deposit account that paid 8% p.a. simple interest for 18 months. How much did she receive after the 18 months?

A) 434	B) 345
C) 235.20	D) 233.20

Answer & Explanation Answer: C) 235.20

Explanation:

I = (p x r x t)/100

I = $25.20

A = P+I

A = 235.20

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Filed Under: Simple Interest
Exam Prep: Bank Exams
Job Role: Bank PO

Q:

The least number of complete years in which a sum of money put out at 20% compound interest will be more than doubled is:

A) 3	B) 4
C) 5	D) 6

Answer & Explanation Answer: B) 4

Explanation:

$P {(1 + \frac{20}{100})}^{n} > 2 P \Leftrightarrow {(\frac{6}{5})}^{n} > 2$

$(\frac{6}{5} \times \frac{6}{5} \times \frac{6}{5} \times \frac{6}{5}) > 2$

so, answer is 4 years

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Filed Under: Compound Interest
Exam Prep: Bank Exams
Job Role: Bank PO

Q:

The isotopes of chlorine with mass number 35 and 37 exist in the ratio of

A) 1:2	B) 2:3
C) 3:1	D) 3:4

Answer & Explanation Answer: C) 3:1

Explanation:

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Filed Under: Chemistry

Q:

Explain the use of keyword WITH ENCRYPTION. Create a Store Procedure with Encryption

Answer

It is a way to convert the original text of the stored procedure into encrypted form. The stored procedure gets obfuscated and the output of this is not visible to

CREATE PROCEDURE Abc

WITH ENCRYPTION

AS

<< SELECT statement>>

GO

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Subject: SQL

Searching for "With"

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