Free Practice Questions for Competitive Exams, Interviews, Certifications

Q:

Solve the number puzzle

number_puzzle1540890829.jpg image

A) 2	B) 3
C) 0	D) Can't be determined

Answer & Explanation Answer: B) 3

Explanation:

In the given number puzzle,

Sum of Row 1 = 14

Sum of Row 2 = 23

Sum of Row 3 = 13 + ?

Sum of Column 1 = 16

Sum of Column 2 = 23

Sum of Column 3 = 11 + ?

Diagonal 1 sum = 17

Diagonal 2 sum = 14 + ?

From the above analysis,

Sum of Row 2 = Sum of Column 2 = 23

Sum of Row 1 = Sum of Column 3 = 14 = 11 + ? .............(1)

Sum of Row 3 = Sum of Column 1 = 16 = 13 + ? .............(2)

Diagonal 1 sum = Diagonal 2 sum = 17 = 14 + ? .............(3)

Hence,

From (1), (2) & (3)

? = 3

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Filed Under: Number Puzzles
Exam Prep: GRE , GATE , CAT , Bank Exams , AIEEE
Job Role: IT Trainer , Bank PO , Bank Clerk , Analyst

17 4319

Q:

How can you make sure your dependencies are safe ?

Answer

When writing Node.js applications, ending up with hundreds or even thousands of dependencies can easily happen.
For example, if you depend on Express, you depend on 27 other modules directly, and of course on those dependencies' as well, so manually checking all of them is not an option!

The only option is to automate the update / security audit of your dependencies. For that there are free and paid options:

1. npm outdated
2. Trace by RisingStack
3. NSP
4. GreenKeeper
5. Snyk

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Subject: Java
Job Role: Analyst , Database Administration , IT Trainer

1 4317

Q:

A static map to the S-AMER location is required. Which command should be used to create this map?

A. frame-relay map ip 172.16.1.3 704 broadcast
B. frame-relay map ip 172.16.1.3 196 broadcast
C. frame-relay map ip 172.16.1.3 702 broadcast
D. frame-relay map ip 172.16.1.3 344 broadcast

Answer

Answer: B

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Subject: CCNA

0 4316

Q:

Which encryption type does WPA2 use?

A) AES - CCMP	B) PPK via IV
C) PSK	D) TKIP/MIC

Answer & Explanation Answer: A) AES - CCMP

Explanation:

WPA2 uses AES-CCMP for encryption. WPA uses TKIP

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Filed Under: CCNA

0 4314

Q:

ICRA Refers to

A) Indian Credit Rating Agency	B) Investment Creation Rationing Authority
C) Investment Credit Rating Agency	D) Indian Cricket Renaissance Association

Answer & Explanation Answer: C) Investment Credit Rating Agency

Explanation:

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Filed Under: General Awareness

22 4313

Q:

What's the difference between the functions rand(), random(), srand() and randomize()?

Answer

rand() returns a random number

random() returns a random number in a specified range

srand() initialise a random number generator with a given seed value

randomize() initializes a random number generator with a random value based o time.

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Subject: Programming

2 4312

Q:

Which one of the following orders presents the correct sequence of the increasing basic nature of the given oxides?

(1) $K_{2} O < N a_{2} O < A l_{2} O_{3} < M g O$

(2) $A l_{2} O_{3} < M g O < N a_{2} O < K_{2} O$

(3) $M g O < K_{2} O < A l_{2} O_{3} < N a_{2} O$

(4) $N a_{2} O < K_{2} O < M g O < A l_{2} O_{3}$

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

Answer & Explanation Answer: B) Option 2

Explanation:

While moving from left to right in periodic table basic character of oxide of elements will decrease.

$∴ \to_{I n c r e a \sin g b a s i c s t r e n g t h}^{A l_{2} O_{3} < M g O < N a_{2} O}$

and while descending in the group basic character of corresponding oxides increases.

$∴ \to_{I n c r e a \sin g b a s i c s t r e n g t h}^{N a_{2} O < K_{2} O}$

$∴ C o r r e c t O r d e r i s A l_{2} O_{3} < M g O < N a_{2} O < K_{2} O$

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Filed Under: Chemistry
Exam Prep: AIEEE

14 4312

Q:

Arrange the given words in the sequence in which they occur in the dictionary.

1. Sonorous

2. Sometimes

3. Somber

4. Solution

5. Solve

A) 42513	B) 45321
C) 12543	D) 32415

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