SST 115 Study Guide Copy PDF

**Module 1 Quiz ** **Question 1 (10 points)** \_\_\_\_\_\_\_\_\_\_\_\_\_refers to the symbols that represent people, events, things, and ideas. It can be a name, a number, the colors in a photograph, or the notes in a musical composition. Answer: Data **Question 2 (10 points)** \_\_\_\_\_\_\_\_...

**Module 1 Quiz ** **Question 1 (10 points)** \_\_\_\_\_\_\_\_\_\_\_\_\_refers to the symbols that represent people, events, things, and ideas. It can be a name, a number, the colors in a photograph, or the notes in a musical composition. Answer: Data **Question 2 (10 points)** \_\_\_\_\_\_\_\_\_\_\_\_\_ is the process by which machines produce sound that resembles spoken words Answer: Speech synthesis **Question 3 (10 points)** The binary number \_\_\_\_\_\_\_\_\_\_\_\_\_ has a value of 255 in base 10 Answer: 11111111 **Question 4 (10 points)** An \_\_\_\_\_\_\_\_\_\_\_\_\_ scan is a contrasting scanning technique that produces an image by drawing every other line, then going back and filling in the in-between lines Answer: Interlaced scan **Question 5 (10 points)** \_\_\_\_\_\_\_\_\_\_\_\_\_ is the number of bits that are processed during a specific unit of time, usually during one second Answer: Bit rate **Question 6 (10 points)** Given the attached table in the image, the hexadecimal value corresponding to the character @ is \_\_\_\_\_\_\_\_\_\_\_\_\_ please enter a number in the blank area) Answer: 40? Can be wrong **Question 7 (10 points)** \_\_\_\_\_\_\_\_\_\_\_\_\_ audio is music, speech, and other sounds represented in binary format for use in digital devices Answer: Audio **Question 8 (10 points)** Which of the following is a bitmap modification technique: A\) noise reduction B\) image enhancement  C)cloning D)correction of image distortion E\) all of the above Answer: All the above **Question 9 (10 points)** The process of covering a wireframe with surface color and texture is called Answer: Rendering **Question 10 (10 points)** The two major categories of techniques for recoding data in a file so that it contains fewer bits are lossless and lossy compression Answer: lossless & lossy **Module 2 quiz** **Question 1 (10 points)** \_\_\_\_\_\_\_\_\_\_\_\_\_ memory is a temporary holding area for data, application program instructions, and the operating system Answer: Random Access **Question 2 (10 points)** A \_\_\_\_\_\_\_\_\_\_\_\_\_ is a flat, solid state storage medium commonly used to transfer files from digital cameras and media players to computers Answer: Memory card **Question 3 (10 points)** Cellular phones have an oleophobic coating designed to repel oils from fingertips Answer: True **Question 4 (10 points)** A \_\_\_\_\_\_\_\_\_\_\_\_\_ is a copy of one or more files that is made in case the originals become damaged Answer: Backup **Question 5 (10 points)** Which of the following tools is not needed for backups on a Windows PC? Answer: Personal computer. **Question 6 (10 points)** CPU \_\_\_\_\_\_\_\_\_\_\_\_\_ is a special high-speed memory that allows a microprocessor to access data more rapidly. True or false Answer: Cache & True **Question 7 (10 points)** The arithmetic logic unit uses \_\_\_\_\_\_\_\_\_\_\_\_ for holding data that is being processed A\) True B) False Answer: Register & is true **Question 8 (10 points)** \_\_\_\_\_\_\_\_\_\_\_\_language consists of binary strings that correspond directly to a microprocessor\'s instruction set Answer: Machine **Question 9 (10 points)** Many digital devices have ports in the system unit that can be opened or closed. These ports are called \_\_\_\_\_\_\_\_\_\_\_\_\_ ports because they expand the options for input, Answer: Expansion **Question 10 (10 points)** Which of the following components of digital devices does not require maintenance? Answer: Mouse **Quiz 3 (Module 3)** Question 1 (10 points) Which of the following links devices so that data and information can be shared among them? Answer: Communication networks **Question 2(10 points)** Which one of the following is not a network type? Answer: Desktop **Question 3 (10 points)** Which of the following is not true for a local area network? Answer: It covers a large geographical area **Question 4 (10 points)** True or false? A communication channel is the medium used to transport information from one network device to another Answer: True **Question 5 (10 points)** True or false? Both wired and wireless channels are network channels. Answer: True **Question 6 (10 points)** Which of the following is not true for a wired channel? Answer: Transport data from one device to another without the use of cable or wires **Question 7 (10 points)** A central device is the key element of which of the following network topologies? Answer: Star topology **Question 8 (10 points)** A\_\_\_\_\_ is a device that controls the flow of data within a network and acts as a gateway to pass data from one network to another Answer: Router **Question 9 (10 points)** \_\_\_\_\_\_\_\_ protocols specify cable and signal standards for the channels that carry data Answer:Physical **Question 10 (10 points)** A\_\_\_\_\_\_\_\_\_\_\_\_\_\_ is a data parcel that is sent across a computer network. Answer: Packet **Activity 1.1: Knowledge Check Answers** 1. **How can you** **determine the format of a file from its name?\ **Answer: Identify its file name extension. 2. **How do digital devices** **represent numbers using only 1s and Os?\ **Answer: They use the binary number system. 3. **What are the two major categories of techniques for recoding data in a file so that it** **contains fewer bits?**\ Answer: Lossless compression and lossy compression **Activity 1.2: Knowledge Check Answers** 1. **How do you calculate the storage space necessary for an audio file?\ **Answer: Multiply the sampling rate in hertz by 32 and then by the length of the audio in seconds. 2. **Why are bitmap graphics resolution dependent?\ **Answer: They are composed of a fixed number of color cells (pixels) arranged in a grid. These pixels become larger when the image is enlarged, making the grid more visible and degrading image quality. 3. **What information** **is saved in a vector graphic file?\ **Answer: Instructions that specify the shape, size, position, and color of image objects  **Activity 2.2: Knowledge Check Answers** 1. **Which type of programming language consists of binary strings that correspond directly to a microprocessor\'s instruction set?\ **Answer: Machine language 2. **What are the steps of the computer instruction cycle?\ **Answer: Fetch an instruction, interpret the instruction, execute the instruction, move to the next instruction (and repeat) 3. **What** **is stored in a functional computer\'s read-only memory?\ **Answer: The boot loader\--a small set of instructions and data that tell the computer how to start up