ccna-1-modul8

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1. Which OSI layer is responsible for binary transmission, cable specification, and physical aspects of network communication?
Presentation
Transport
Data Link
***** Physical

2. An installed fiber run can be checked for faults, integrity, and the performance of the media by using what device?
light injector
***** OTDR
TDR
multimeter

3. Which characteristics describe fiber optic cable? (Choose two.)
***** It is not affected by EMI or RFI.
Each pair of cables is wrapped in metallic foil.
It combines the technique of cancellation, shielding and twisting to protect data.
It has a maximum speed of 100 Mbps.
***** It is the most expensive type of LAN cabling.

4. When is a straight-through cable used in a network?
when connecting a router through the console port
when connecting one switch to another switch
***** when connecting a host to a switch
when connecting a router to another router

5. Refer to the exhibit. Which type of Category 5 cable is used to make an Ethernet connection between Host A and Host B?
coax cable
rollover cable
***** crossover cable
straight-through cable