Ericsson Graduate Engineer Interview Questions and Answers

Cloud computing is the delivery of computing services over the internet, allowing users to access and store data on remote servers.

• Cloud computing allows users to access data and applications from any device with an internet connection.

• The basic deployment models of cloud computing are public, private, hybrid, and community clouds.

• Public clouds are owned and operated by third-party cloud service providers, offering resources like storage and virtual machines to the public.

• Pri...read more

2G, 3G, 4G, and 5G are different generations of mobile network technology.

• 2G refers to second-generation mobile networks that primarily provided voice and text messaging services.

• 3G introduced faster data transfer speeds, enabling internet browsing, video calling, and multimedia services.

• 4G further improved data speeds, offering high-quality video streaming, online gaming, and advanced mobile applications.

• 5G is the fifth generation of mobile network technology, designed to pr...read more

Modulation is the process of varying a carrier signal in order to transmit information.

• Amplitude Modulation (AM) - varying the amplitude of the carrier signal

• Frequency Modulation (FM) - varying the frequency of the carrier signal

• Phase Modulation (PM) - varying the phase of the carrier signal

• Quadrature Amplitude Modulation (QAM) - combining amplitude and phase modulation

• Pulse Amplitude Modulation (PAM) - varying the amplitude of discrete pulses

• Pulse Width Modulation (PWM) - va...read more

To remove elements from a list, use the remove() method or list comprehension.

• Use the remove() method to remove a specific element from the list.

• Use list comprehension to remove multiple elements based on a condition.

• Example: myList.remove('element') or myList = [x for x in myList if x != 'element']

Digital circuits are electronic circuits that operate using digital signals (0s and 1s) to perform logical operations.

• Digital circuits use logic gates to process binary information.

• They can perform operations such as AND, OR, NOT, and XOR.

• These circuits are the building blocks of computers and other digital devices.

• Examples of digital circuits include flip-flops, registers, and arithmetic logic units.

Wireless communication refers to the transmission of information without the use of physical connections or wires.

• Wireless communication allows devices to communicate with each other over a distance using electromagnetic waves.

• It enables the transfer of data, voice, and video signals wirelessly.

• Examples of wireless communication technologies include Wi-Fi, Bluetooth, cellular networks, satellite communication, and radio frequency identification (RFID).

Logic gates are electronic devices that perform logical operations based on input signals.

• Logic gates take input signals and produce an output signal based on a specific logic function.

• They can perform operations such as AND, OR, NOT, NAND, NOR, XOR, and XNOR.

• For example, an AND gate outputs a high signal only when both input signals are high.

• A NOT gate inverts the input signal, producing a high output when the input is low.

• Logic gates are the building blocks of digital circu...read more

Telecommunication is the transmission of information over a distance using electronic means.

• Telecommunication involves the exchange of information between two or more parties.

• It uses various technologies such as telephones, radios, television, and the internet.

• Telecommunication enables real-time communication, allowing people to connect and communicate regardless of their physical location.

• Examples of telecommunication include making phone calls, sending text messages, video ...read more