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Computer Science

Computer Science is a dynamic and evolving field that encompasses the study of algorithms, data structures, programming languages, and the architecture of computer systems. It plays a critical role in driving innovation and technological advancement across various industries. From developing sophisticated software applications to designing complex hardware systems, computer science professionals are at the forefront of solving real-world problems. Key areas of focus include artificial intelligence, machine learning, cybersecurity, and data science, each contributing to the development of smarter, more efficient technologies.

The impact of computer science extends beyond traditional computing, influencing fields such as healthcare, finance, and education. With the rise of big data and the Internet of Things (IoT), the demand for skilled computer scientists has surged, creating opportunities for careers in software development, systems analysis, and IT management. Understanding core concepts such as algorithms and data structures is essential for optimizing performance and ensuring the security of digital systems. As technology continues to evolve, computer science remains a pivotal discipline in shaping the future of innovation and addressing the challenges of an increasingly digital world.

Which of the following is NOT a characteristic of a packet-switched network?

A. Data is broken into packets before being sent
B. All packets travel the same path to the destination
C. Packets may take different routes to reach the destination
D. The network can handle multiple communications simultaneously

Option: B

Which of the following protocols is used for secure remote login and other secure network services over an insecure network?

A. FTP
B. SSH
C. Telnet
D. POP3

Option: B

Which type of network topology uses a central hub to connect all devices?

A. Mesh
B. Ring
C. Star
D. Bus

Option: C

Which layer of the OSI model is responsible for end-to-end communication and error recovery?

A. Network Layer
B. Transport Layer
C. Data Link Layer
D. Application Layer

Option: B

What does the acronym ‘LAN’ stand for?

A. Local Access Network
B. Local Area Network
C. Large Area Network
D. Linear Area Network

Option: B

What is the main function of a router in a network?

A. To amplify signals
B. To convert analog signals to digital
C. To direct data packets between networks
D. To store user data

Option: C

What protocol is primarily used for sending email messages between servers?

A. HTTP
B. FTP
C. SMTP
D. IMAP

Option: C

Which of the following is a valid IPv4 address?

A. 192.168.256.1
B. 172.16.0.256
C. 10.0.0.1
D. 255.255.255.256

Option: C

What is the main purpose of the Domain Name System (DNS)?

A. To provide security for internet communications
B. To convert domain names into IP addresses
C. To filter and block malicious websites
D. To connect users to the closest server

Option: B

Which of the following components is responsible for rendering images in a computer?

A. CPU
B. RAM
C. GPU
D. SSD

Option: C

In texture mapping, the term ‘UV mapping’ refers to:

A. Mapping images using ultraviolet light
B. Applying textures based on vertex positions
C. Mapping a 2D image onto a 3D model
D. Converting textures into grayscale

Option: C

What does the acronym ‘HDR’ stand for in the context of digital imaging?

A. High Definition Rendering
B. Hyper Dynamic Range
C. High Dynamic Range
D. Highly Detailed Rendering

Option: C

Which of the following is a lossless image compression technique?

A. JPEG
B. PNG
C. GIF
D. MP3

Option: B

The process of increasing the number of pixels in an image is known as:

A. Decimation
B. Interpolation
C. Extrapolation
D. Quantization

Option: B

Which technique is used to reduce the blockiness of images when scaling up?

A. Bilinear Filtering
B. Trilinear Filtering
C. Nearest Neighbor
D. Cubic Filtering

Option: A

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