Tata Communications Transformation Services Graduate Engineer Trainee (Get) Interview Questions and Answers

The OSI model has 7 layers, each with a specific function in data communication.

• Layer 1: Physical layer - deals with the physical transmission of data

• Layer 2: Data link layer - responsible for error-free transfer of data between nodes

• Layer 3: Network layer - handles routing and forwarding of data packets

• Layer 4: Transport layer - ensures reliable delivery of data between end systems

• Layer 5: Session layer - establishes,...read more

Cloud computing architecture refers to the components and subcomponents required for cloud computing.

• Cloud computing architecture includes front-end platforms, back-end platforms, cloud-based delivery, and network infrastructure.

• Front-end platforms include user devices and web browsers.

• Back-end platforms include servers, storage, and databases.

• Cloud-based delivery includes software as a service (SaaS), platform as a se...read more

Adaptive delta modulation is a type of analog-to-digital conversion technique.

• It uses a variable step size to quantize the signal.

• It is simple and requires less circuitry.

• It suffers from slope overload distortion and granular noise.

• It is used in low-cost applications like speech and video transmission.

Number of times hour and minute hand overlap in a 12-hour clock in 12 hours.

• The hands overlap every hour at 5 minutes past the hour.

• The hands overlap once more between 12:00 and 1:00.

• Total overlaps in 12 hours are 11.

To remove 50% water from a fully filled right cylinder with only the cylinder available.

• Measure the height of the cylinder

• Mark the halfway point on the cylinder

• Pour out the water until it reaches the halfway mark

Determining if a number is happy or not.

• A happy number is a number that results in 1 when replaced by the sum of the squares of its digits.

• If the sum of squares of digits results in a cycle, the number is not happy.

• For example, 19 is a happy number as 1^2 + 9^2 = 82, 8^2 + 2^2 = 68, 6^2 + 8^2 = 100, 1^2 + 0^2 + 0^2 = 1.

• To check if a number is happy or not, we can use a hash set to keep track of the numbers we have seen...read more