A: Fiber cables
B: Twisted pair cables
C: Coaxial cables
举一反三
- The transmission media used by 10BASE-T Ethernet is ( ) A: Twisted pair B: Fiber C: Coaxial cable D: Radio waves
- The transmission media used by 10BASE-F Ethernet is ( ) A: Fiber B: Twisted pair C: Coaxial cable D: Radio waves
- When installing cables， which of the following is the BEST way of identifying the individual cables？（） A: A cable chart mounted in the cabinet B: A label at the tip of the cable C: A label within six inches at each end of the cable D: A penciled notation on the panel cover
- China has signed cooperation agreements with some countries on fiber optic cables, which represent the practical launch of the Silk Road Fiber Optic Cable project.
- Which physical connection is the fastest? A: Twisted pair B: Coaxial cable C: Fiber-optic cable D: Microwave
内容
- 0
Among the following transmission media, the lowest bit error rate is ( ) . A: Optical fiber B: Coaxial cable C: Twisted pair D: Microwave
- 1
Among the following four transmission media, which has the widest bandwidth, the smallest signal transmission attenuation and the strongest anti-interference capability? A: Twisted pair B: Coaxial cable C: Optical fiber D: Microwave
- 2
Which of the following connector types is used with twisted pair cable?（） A: T-Connector B: BNC C: RJ-45 D: LC
- 3
In a data communication system, the transport media with the widest frequency band and best reliability is the( ). A: radio channel B: coaxial cable C: twisted--pair cable D: fiber optic cable
- 4
II.Analogies.(每小题1.5分，共15分。)Directions:Select the lettered pair that best expresses a relationship similar to that expressed in the original pair, and write the corresponding letter on the answer sheet.11.BELT: TROUSERS: A: braces:<br/>garters B: trunk: tree C: cables: bridge D: cables: trolley