Karteikarten
Computing Question Bank
Karten in diesem Stapel (15)
- 11. What are the uses or applications of hexadecimal number system? (Cambridge IGCSE Textbook Page.9)* Used in HTML color codes.
* Used to display error codes.
* Used in MAC addresses.
* Used in assembly language.
* Web addresses.
* Memory dumps / Locations in memory.
* Definition - 24. Differentiate structure and presentation in HTML. (Page.10)* Structure: Instructs how the layout of the contents are to be displayed. Eg: header, body, footer, etc
* Presentation: Instructs how the content is to be formatted. Eg: font colour, font size. - 32. Explain memory dumps. (Page.9)The contents of part of the computer memory can hold the key to help solve many problems when developing new software. When the memory contents are output to the printer or monitor, this is known as memory dump.Definition
- 43. What is HTML? (Page.10)Hyper Text Markup Language. It is a language used to create/design web pages and it is translated and displayed by a web browser. It uses structure and presentation. In HTML, both structure and presentation are usually kept separate.
- 55. Explain MAC address. (Page.11)Media access control address. It is a 12 digit (48 bits) hexadecimal number unique to the network interface card and it is allocated by the manufacturer. It is used to uniquely identify a device on a network.Definition
- 66. Differentiate the two parts of the MAC address. (Page.11)* First 6 digits: manufacturer ID
* Last 6 digits: serial ID of the product/device. - 77. What are the two types of MAC addresses? (Page.11)* UAA: Universally administered MAC address
* LAA: Locally administered MAC address - 88. Explain the reasons why MAC addresses need to be changed using LAA. (Page.11)* Certain software used on mainframe systems needs all the MAC addresses of devices to fall into a strict format.
* It may be necessary to bypass a MAC address filter on a router or a firewall.
* To get past certain types of network restrictions. - 99. Explain Simplex, Half Duplex, and Full Duplex with examples. (Page.14)* Simplex: transmission of data in one direction only. Eg: microphone to computer.
* Half-duplex: transmission of data in both directions but not at the same time. Eg: walkie talkie.
* Full-duplex: transmission of data in both directions at the same time. Eg: video conferencing. - 1010. Describe the difference between serial and parallel transmission. (Page.14)* Serial data transmission: Transmission of data using a single wire one bit at a time.
* Parallel data transmission: Transmission of data using multiple wires, multiple bits at a time. - 1111. Give Examples for serial and parallel data transmission. (Page.15)* Serial: USB (Universal serial bus)
* Parallel: ICs (Integrated circuits) - 1212. State the advantages of serial data transmission. (Page.15)* Suitable for long distance connections.
* One bit at a time means less chance for bits to become ‘skewed’.
* Single wire reduces costs. - 1313. State the disadvantages of serial data transmission. (Page.15)Slower data transmission speed compared to parallel data transmission.
- 1414. State the advantages of parallel data transmission. (Page.15)Faster data transmission speed compared to serial data transmission.
- 1515. State the disadvantages of parallel data transmission. (Page.15)* Not suitable for long distance connections as bits could become ‘skewed’.
* Multiple wires mean more costly compared to serial data transmission.
Informationen
- Beschreibung
- Karteikarten am Computing Question Bank, erstellt von Muba rick am 12/04/2020.
- Erstellt von
- Muba rick
- Aufrufe
- 0
- Bewertung