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CCNA Semester 1 - Chapter 2B
供稿人: Alvarado
  • 1. The following are end devices EXCEPT
A) ipod itouch
B) printer
C) ip phone
D) router
  • 2. The following are intermediary devices EXCEPT
A) laptop
B) router
C) hub
D) lan switch
  • 3. An intranet is only available to a/an
A) city
B) organization
C) neiborhood
D) residence
  • 4. Packet Tracer helps in creating virtual
A) networks
B) switches
C) routers
D) LANs
  • 5. The TRACERT command allows the user to observe the flow of
A) protocols
B) information
C) hackers
D) IP command lines
  • 6. Which is the seventh layer of the OSI model?
A) presentation
B) session
C) application
D) physical
  • 7. Which is the first layer of the OSI model?
A) physical
B) application
C) presentation
D) session
  • 8. How many layers does the OSI model have?
A) eight
B) nine
C) four
D) seven
  • 9. How many layers does the TCI/IP model have?
A) eight
B) seven
C) four
D) nine
  • 10. In which layer are data bits timed and synchronized?
A) transport
B) datalink
C) network
D) physical
  • 11. In which layer do packets receive their destination and source PHYSICAL addresses?
A) network
B) physical
C) transport
D) datalink
  • 12. In which layer do packets receive their destination and source LOGICAL addresses?
A) physical
B) network
C) transport
D) datalink
  • 13. PDUs receive the following information except
A) packet data
B) destination address
C) routing tables
D) source address
  • 14. PDU stands for Protocol Data...
A) Unification
B) Unit
C) Unicode
D) Union
  • 15. At end devices, service port numbers direct incoming data to the correct
A) user
B) topology
C) conversation
D) domain
  • 16. The following are benefits of using a layered model except
A) prevent one layer from affecting the other layers
B) accelerate rate of router transmissions
C) assist in protocol design
D) foster vendor competition
  • 17. As data passes down the OSI layered model stacks, it is
A) specialized
B) assembled
C) enhanced
D) encapsulated
  • 18. TRACERT or TRACEROUTE is a tool used to determine the path taken by
A) LANs
B) packets
C) switches
D) routers
  • 19. The Domain Name System is considered an internet phonebook because it translates hostnames into
A) routing tables
B) cmd commands
C) IP addresses
D) proxy servers
  • 20. What type of network cabling is required in a direct peer-to-peer connection?
A) RJ-11
B) straight-through
C) console
D) crossover
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