Technical Questions

Q:

Where is a hub specified in the OSI model?

A) Data link layer B) Session layer
C) Application Layer D) Physical layer
 
Answer & Explanation Answer: D) Physical layer

Explanation:

Hubs are specified or operate at Layer1 i.e, the physical layer in the OSI model. Hubs regenerate electrical signals. A hub sends data packets (frames) to all devices on a network, regardless of any MAC addresses contained in the data packet.

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Filed Under: Networking
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

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Q:

What are different functional units in 8086?

Answer

Bus Interface Unit and Execution unit, are the two different functional units in 8086.

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Subject: Hardware

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Q:

What is EGP?

Answer

It is the protocol the routers in neighboring autonomous systems use to identify the set of networks that can be reached within or via each autonomous system.

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Subject: Networking
Job Role: Network Engineer

0 2542
Q:

The SQL statements that take care of security and authorization are

A) DDL B) DML
C) DCL D) None
 
Answer & Explanation Answer: C) DCL

Explanation:

Data Control Language takes caare of security and authorization

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Filed Under: Software Testing

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Q:

Answer the following Program

#define CHARSIZE 8

#define MASK(y) (1 << y % CHARSIZE)

#define BITSLOT (y) (y / CHARSIZE)

#define SET(x,y) ( x[BITSLOT(y)] = MASK(y) )

#define TEST(x,y) ( x[BITSLOT(y)] & MASK(y) )

#define NUMSLOTS(n) ((n + CHARSIZE - 1) / CHARSIZE)

 

Give the above macros how would you

1. declare an array arr of 50 bits

2. put the 20th bit on

3. test whether the 40th bit is on or off

Answer

1. char arr[NUMSLOTS(50)];


2. SET (arr, 20);


3. if (TEST (arr, 40))

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Subject: Programming

0 2534
Q:

What is ICMP?

Answer

ICMP is Internet Control Message Protocol, a network layer protocol of the TCP/IP suite used by hosts and gateways to send notification of datagram problems back to the sender. It uses the echo test / reply to test whether a destination is reachable and responding. It also handles both control and error messages.

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Subject: Networking
Job Role: Network Engineer

0 2534
Q:

What methodologies have you used to develop test cases?

Answer

 I have used following 4 types of Methodologies: 


 


1. Boundary value analysis   


2. Equivalence partitioning   


3. Error guessing   


4. Cause effect graphing

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Subject: Software Testing

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Q:

Cloud computing is not suited for situations

A) where complex legacy systems have to be ported B) characterized by limited-time tasks
C) involving offloading of expensive computing tasks D) with no existing regulatory compliance issues
 
Answer & Explanation Answer: A) where complex legacy systems have to be ported

Explanation:

Cloud computing is not suited for situations where complex legacy systems have to be ported.

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Filed Under: Database
Job Role: Analyst , Database Administration , IT Trainer

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