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