21. Which type of switching reads in the entire frame before forwarding it? A.) Fast Forward B.) Tabling C.) Cut-Through D.) Store-and-Forward E.) Inverse ARP F.) Routing
D Store-and-Forward is slower, but it checks the frame for errors before forwarding. This can actually help to improve overall network performance on noisy lines.
22. What is the standard ISDN term for a non-native analog telephone? A.) ET B.) LE C.) TE2 D.) TE1 E.) TA C Terminal Equipment 2 (TE2) does not support native digital ISDN. The analog device will require an external analog to digital converter.
23. Which layer of the 7 layer model is responsible for representing the application information between 2 different OS’s? For example, converting ASCII to EBCIDIC. A.) Transport B.) Physical C.) Application D.) Network E.) Session F.) Presentation
F. Presentation Layer Accepts data from application layer and negotiates data representation, syntax, compression and encryption. Examples: ASCII, EBCDIC, JPEG, GIF, PICT, MIDI, MPEG
C.
C
D