1: ________ bit in ICW1 indicates whether the 8259A is cascade mode or not ?
|
| a. LTIM=0 |
| b. LTIM=1 |
| c. SNGL=0 |
| d. SNGL=1 |
2: _______ is the most widely used local area network protocol.
|
| a. Token Ring |
| b. Token Bus |
| c. Ethernet |
| d. none of the above |
3: ________ is part of the media; its location in the Internet model is below the physical layer.
|
| a. An active hub |
| b. A passive hub |
| c. either (a) or (b) |
| d. neither (a) nor (b) |
Answer: (b). A passive hub
4: ________ uses 1550-mm single mode fiber.
|
| a. 10GBase-S |
| b. 10GBase-L |
| c. 10GBase-E |
| d. none of the above |
5: ________ uses short-wave 850-nm multimode fiber.
|
| a. 10GBase-S |
| b. 10GBase-L |
| c. 10GBase-E |
| d. none of the above |
6: _________ is just a connector.
|
| a. An active hub |
| b. A passive hub |
| c. either (a) or (b) |
| d. neither (a) nor (b) |
Answer: (b). A passive hub
7: _________ uses four pairs of voice-grade, or higher, twisted-pair cable.
|
| a. 100Base-TX |
| b. 100Base-FX |
| c. 100Base-T4 |
| d. none of the above |
8: _________ uses four twisted pairs.
|
| a. 1000Base-SX |
| b. 1000Base-LX |
| c. 1000Base-T |
| d. none of the above |
9: _________ uses two fiber-optic cables.
|
| a. 100Base-TX |
| b. 100Base-FX |
| c. 100Base-T4 |
| d. none of the above |
10: __________ uses two optical fibers and a short-wave laser source.
|
| a. 1000Base-SX |
| b. 1000Base-LX |
| c. 1000Base-T |
| d. none of the above |