Technical Questions

Q:

Which layer 4 protocol is used for a Telnet connection?

A) UDP B) IP
C) TCP D) TCP/IP
 
Answer & Explanation Answer: C) TCP

Explanation:

Telnet uses TCP at layer 4. It uses IP at layer 3. We know that Telnet uses TCP/IP protocol, but in the question, it is asked specifically at layer 4 what is used in Telnet. So it is TCP at layer4 and IP at layer 3.

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Q:

Which among the following is not aprocess state in unix?

A) Running B) Runnable
C) Zombie D) Stopped
 
Answer & Explanation Answer: B) Runnable

Explanation:

The process states of unix are running,Zombie,stopped,Waiting.

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Filed Under: Operating Systems
Exam Prep: GATE

7 5074
Q:

Which processor structure is pipe lined?

Answer

All x86 processors have pipelined structure.

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Subject: Hardware

5 5044
Q:

 When an entity instance may be a member of multiple subtypes or it does not have to be a member of a subtype, it is which of the following?

A) Disjoint with total specialization B) Disjoint with partial specialization
C) Overlap with total specialization D) Overlap with partial specialization
 
Answer & Explanation Answer: C) Overlap with total specialization

Explanation:
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Filed Under: Database

2 5011
Q:

The coding or scrambling of data so that humans cannot read them, is known as _____.

A) Compression B) Encryption
C) Ergonomics D) Biometrics
 
Answer & Explanation Answer: B) Encryption

Explanation:

The coding or scrambling of data so that humans cannot read them is known as encryption.

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Filed Under: Programming

9 5006
Q:

getppid() system call is used to bias the existing priority of a process 

A) TRUE B) FALSE
Answer & Explanation Answer: B) FALSE

Explanation:

It is used to get parent process identifier

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Subject: Operating Systems
Exam Prep: GATE

1 4995
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 4993
Q:

An entity is a thing in the real world with an independent existence.

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

Entity is a real world object

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Subject: Database
Job Role: Database Administration

1 4991