Exam Solution

(TCO 1) Line signaling converts a digital word into a _____. (Points : 5)
       serial bit stream
       analog word
       bit word
       serial byte stream


 

Question 2. 2. (TCO 1) The 1,000 Mbps Ethernet uses _____ block encoding. (Points : 5)
       4B/5B
       differential
       4D
       4D-PAM-5


 

Question 3. 3. (TCO 1) The 1000BASE-SX uses _____ cable. (Points : 5)
       fiber-optic
       wireless
       copper
       shielded


 

Question 4. 4. (TCO 1) One of the methods used to overcome baseline wander in higher Ethernet speeds is _____. (Points : 5)
       stutter stepping
       reverse error correction
       forward error correction
       All of the above


 

Question 5. 5. (TCO 2) The horizontal link cable consists of _____. (Points : 5)
       solid core copper wire
       solid core wire wire
       solid core aluminum wire
       wireless signals


 

Question 6. 6. (TCO 2) The NEC requires that these cables be run through plenums (under floors, above drop ceilings, and in the air-handling space between walls). (Points : 5)
       NEC-made cables
       Screened UTP
       Plenum cables
       Noncolor cables


 

Question 7. 7. (TCO 2) When terminating cable, you must use plugs and jacks rated to the _____ of cable you are using. (Points : 5)
       level
       category
       pinout
       gallery


 

Question 8. 8. (TCO 2) A small form factor connector for fiber-optic cable is the ____ connector. (Points : 5)
       LC
       SC
       RJ-11
       ST


 

Question 9. 9. (TCO 3) The National Electric Code (NEC) deals with _____. (Points : 5)
       the proper installation of electrical wire and related equipment
       service entrances
       conversion of RJ-11 to RJ-45
       All of the above


 

Question 10. 10. (TCO 3) The basic component of the 568 standard is the _____. (Points : 5)
       RJ-11
       modular jack
       cable
       punchdown


 

Question 11. 11. (TCO 3) The basic link is limited to _____. (Points : 5)
       90 meters
       90 feet
       100 meters
       100 feet


 

Question 12. 12. (TCO3) The complete cabling system from the computer’s NIC to the switch port is called the _____. (Points : 5)
       channel
       backbone
       permanent link
       mitigation


 

Question 13. 13. (TCO 4) Right of way refers to _____. (Points : 5)
       the right to purchase property
       the right to use property not owned or directly controlled
       the burial of aerial cable
       a license for a local government


 

Question 14. 14. (TCO 4) The outside plant is typically routed into the building through the _____. (Points : 5)
       entrance facility
       work area
       right of way
       tube


 

Question 15. 15. (TCO 4) This is very bad for connections carrying radio frequency signals. (Points : 5)
       Pigeons
       Low-flying aircraft
       Tape
       Moisture


 

Question 16. 16. (TCO 4) In general, a lightning protection system should _____. (Points : 5)
       dissipate the lightning energy into the ground field
       capture the energy from the lightning strike to a known point designed to handle that much energy.
       ensure that all ground points are bonded to one another
       All of the above


 

Question 17. 17. (TCO 5) The original form of Ethernet was a _____-based method. (Points : 5)
       deterministic
       wireless
       token
       contention


 

Question 18. 18. (TCO 5) The type field in an Ethernet II frame is _____ bytes long. (Points : 5)
       1
       2
       3
       4


 

Question 19. 19. (TCO 5) The function of the Frame Check Sequence field in an Ethernet II frame is to _____. (Points : 5)
       check for errors in transmission
       check for errors in encapsulation
       retime the transmission
       allow the sender to set up bit synchronization


 

Question 20. 20. (TCO 5) PPP has how many possible states? (Points : 5)
       Two
       Three
       Four
       Five


 

Question 21. 21. (TCO 6) CRC stands for what? (Points : 5)
       Cycle repeat cycle
       Cyclical redundancy check
       Checksum response cycle
       Content repetition checksum


 

Question 22. 22. (TCO 6) What layer notices that a frame has been lost? (Points : 5)
       Network access
       Internet
       Transport
       Application


 

Question 23. 23. (TCO 6) The result of the checksum calculation is stored as a(n) _____. (Points : 5)
       random number
       decimal number
       binary number
       FCS


 

Question 24. 24. (TCO 6) If the checksum calculated at both ends of a link does not match, the frame is _____. (Points : 5)
       converted to a MLT-3 frame
       recalculated until it does
       copied to the NIC driver
       discarded


 

Question 25. 25. (TCO 7) Lack of horizontal support for the patch cables going into the switches in the equipment room will cause _____. (Points : 5)
       downward pressure on the connectors, which may cause them to come loose
       server downtime
       intrusion attempts
       timing reissues


 

Question 26. 26. (TCO 7) A gigabit Ethernet system can send _____. (Points : 5)
       data at irregular intervals
       1,488,000 frames per second
       1,500 bytes per second
       in triple duplex mode


 

Question 27. 27. (TCO 7) What is SNMP? (Points : 5)
       Simple Network Management Protocol
       Simple Network Minimization Protocol
       Single Network Management Process
       Systematic Network Mission Protocol


 

Question 28. 28. (TCO 7) Binary search isolation is also known as _____. (Points : 5)
       hexadecimal conversion
       divide and conquer
       binary-to-decimal subnetting
       general fault isolation
 


 

TCO 1) A spread spectrum signal is different from one used for a common radio frequency signal such as that used by an FM radio station. Explain how the spread spectrum signal differs. Explain what DSSS means. (Points : 40)

    

Question 30. 30. (TCO 2) When installing UTP cable for a horizotnal link, it is very important to minimize crosstalk. Explain what crosstalk is, why crosstalk can be a problem, and how it is minimized when terminating UTP cables. (Points : 40)

      
 
Question 31. 31. (TCO 3) Explain what role BICSI has in ensuring that structured cabling standards are adhered to. (Points : 40)

      
 

Question 32. 32. (TCO 4) Project management is an important part of working in the outside plant because it is likely that various contractors, governmental agencies, and owners of right of way will have to be dealt with. Discuss the major elements of project management in the outside plant. (Points : 40)