Cisco
CCNA 1 Chapter 8 V4. 0 Answers 100% 2011 1 . Which type of cable run is most often associated with fiber- optic cable? backbone cable horizontal cable patch cable work area cable 2. In most business LANs, which connector is used with twisted- pair networking cable? BNC RJ-II RJ-45 Type F 3. When is a straight- when connecting a when connecting on ou ors network? e port when connecting a router to another router 4. With the use of unshielded twisted-pair copper wire in a network, what causes crosstalk within the cable pairs? e magnetic field around the adjacent pairs ofwire the use of braided wire to shield the adjacent wire pairs the reflection of the electrical wave back from the far end ofthe cable the collision caused bytwo nodes trying to use the media simultaneously 5. Which OSI layer is responsible for binary transmission, cable specification, and physical aspects of network communication? Presentation Transport Data Link on their data network. What two types of cable would most commonly be used for new runs? (Choose two. ) coax Cat4 CJTP cats UTP at6 IJTP STP 8.
What is a possible effect of improperly applying a connector to a network cable? Data Will be forwarded to the wrong node. Data transmitted through that cable may experience signal Ioss. An improper signaling method Will be implemented for data transmitted on that cable. The encoding method for data sent on that cable Will change to compensate for the improper connection 9. What are three measures of data transfer? (Choose three. ) goodput frequency amplitude throughput crosstalk bandwidth 10. Refer to the exhibit.
Which type of Category 5 cable is used to make an Ethernet connection between Host A and Host 3? coax cable rollover cable crossover cable straight-through cable 11 . In LAN installations where potential electrical hazards or electromagnetic interference may be present, What type of media is recommended for backbone cabling? fiber CatSe LJTP cat6 CJTP PAGFarl(F3 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 technlque of cancellation, shielding and twisting o protect data.
It has a maximum speed of 100 Mbps. It is the most expensive type of LAN cabling. 1 S. Which of the following is a characteristic of single-mode fiber- generally uses LEDS as the light source relatively larger core with multiple light paths less expensive than multimode generally uses lasers as the light Source 16. What is considered a benefit of wireless as a media choice? more host mobility lower security risks reduced susceptibility to interference less impact of the surroundings on the effective coverage area 7.
What characteristic of UTP cable helps reduce the effects of interference? the metal braiding in the shielding the reflective cladding around core the twisting of the wires in the cable the insulating material in the outer jacket 18. What is a primary role of the Physical layer in transmitting data on the network? create the signals that represent the bits in each frame on to the media provide physical addressing to the devices determine the path packets take through the network control data access to the media PAGF3ÜF3