The arrangement of the text and graphic elements or placeholders on a slide

The open systems interconnection (OSI) model is inefficient; each layer must take the work of higher layers, add some result, and pass the work to lower layers. This process ends with the equivalent of a gift inside seven nested boxes, each one wrapped and sealed. Surely this wrapping (and unwrapping) is inefficient. From reading earlier chapters of this book, cite a security advantage of the

layered approach. What will be an ideal response?

Which of the following DSL services operates in a higher speed in one direction than the other?

a. HDSL b. HDSL2 c. ADSL d. SDSL