Computer Science

The standard 4K resolution used in digital cinema is 4096×2160 pixels, which is answer D. The other options do not match the standard 4K specification.

1 GB (gigabyte) is commonly considered as 1,000,000,000 bytes (1 billion bytes) in the decimal (SI) system, which is the standard in most contexts outside of computer memory (where 1 GB can mean 1,073,741,824 bytes).

The first page of a website is commonly referred to as the 'Homepage.' It serves as the main entry point and starting page for visitors to a website.

BCD stands for 'Binary Coded Decimal,' which is a class of binary encodings for decimal numbers where each digit is represented by its own binary sequence.

CRT stands for Cathode Ray Tube, which is a technology used in traditional television and computer monitor displays. The other options are incorrect expansions of the acronym.

In Microsoft Word, pressing F7 opens the spelling and grammar checker, also known as the speller. This allows users to check their document for spelling and grammatical errors.

8 bits make up a byte. This is a fundamental unit of digital information in computing and telecommunications.

There are two common definitions for 1 Gigabyte (GB): In the binary system (used by most operating systems), 1 GB equals 1024 Megabytes (MB). In the decimal system (used by most storage device manufacturers and the SI standard), 1 GB equals 1000 MB. Since the question and options align with the binary definition, the correct answer is 1 GB = 1024 MB (option D). Options A, B, and C are incorrect as they do not represent valid conversions for 1 GB.

ACL stands for Access Control List, which is a list of permissions attached to an object specifying which users or system processes can access it and what operations they can perform.

A nibble is a unit of digital information that consists of 4 bits. It is half of a byte, which is 8 bits.