CSS · Computer Science · MCQs Sets
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A MAC address, also known as a physical address, consists of 48 bits, which are typically represented as 12 hexadecimal digits grouped into six pairs separated by colons or hyphens.
Modern communication systems utilize various physical media to transmit data. This includes electrical signals over copper wires, light pulses through fiber optic cables, and electromagnetic radio waves through the air. Systems often employ a combination of these technologies to ensure reliable long-distance connectivity.
To share a PowerPoint presentation file with another person via email, the standard procedure is to add the file as an 'Attachment'. This allows the email server to transmit the actual file data along with the message, enabling the recipient to download and open the presentation on their own device.
In a star topology, every node or computer is connected individually to a central connection point, such as a hub or a switch. This central device manages the data transmission across the network.
In computing, each hexadecimal digit corresponds to exactly 4 bits (a nibble). Since 'AF' consists of two hexadecimal digits, the total number of bits required is 2 multiplied by 4, which equals 8 bits.
To convert the decimal number 361 to binary, we represent it as a sum of powers of two: 256 + 64 + 32 + 8 + 1. This corresponds to the binary positions for 2^8, 2^6, 2^5, 2^3, and 2^0. When these values are mapped into a binary string, the result is 101101001. This process is essential for understanding how computers store and process numerical data.
GPRS stands for General Packet Radio Service. It is a packet-oriented mobile data standard on the 2G and 3G cellular communication network's global system for mobile communications (GSM). It allows for data transmission over mobile networks.
The operating system acts as the primary software layer that manages hardware resources, controls system functions, and provides services for computer programs. It coordinates the interaction between hardware components and user applications.
In most modern operating systems and web browsers, the Ctrl + W keyboard shortcut is the standard command used to close the currently active window, tab, or document. This shortcut helps improve productivity by allowing users to quickly manage their open workspace without needing to use a mouse to click the close button.
Google is a multinational technology company that is primarily recognized for its widely used internet search engine, which indexes and retrieves information from the World Wide Web.
