CCNA Interview Questions 6

9 Apr, 2007  Networking Interview Questions



  1. Which addresses are INCORRECTLY paired with their class?
    * 128 to 191, Class B
    * 192 to 223 Class B
    * 128 to 191, Class C
    * 192 to 223, Class C
    Correct answer: B & C
    Address classes are: 1 to 126, Class A; 128 to 191, Class B, 192 to 223, Class C; 224 to 239, Class D; and
  2. to 255, Class E. The first octet rule states that the class of an address can be determined by the numerical value of the first octet.
  3. Which addresses are INCORRECTLY paired with their class?
    * 1 to 126, Class A
    * 128 to 191, Class A
    * 1 to 126, Class B
    * 128 to 191, Class B
    Correct answer: B & C.
    Address classes are: 1 to 126, Class A; 128 to 191, Class B, 192 to 223, Class C; 224 to 239, Class D; and
  4. to 255, Class E. The first octet rule states that the class of an address can be determined by the numerical value of the first octet.
  5. Which addresses are INCORRECTLY paired with their class?
    * 240 - 255, Class D
    * 240 - 255, Class E
    * 224 - 239, Class D
    * 224 - 239, Class E
    Correct answer: A & D
    Address classes are: 1 to 126, Class A; 128 to 191, Class B, 192 to 223, Class C; 224 to 239, Class D; and 240 to 255, Class E.
  6. Which IP Address Class is INCORRECTLY paired with its range of network numbers?
    * Class A addresses include 192.0.0.0 through 223.255.255.0
    * Class A addresses include 1.0.0.0 through 126.0.0.0
    * Class B addresses include 128.0.0.0 through 191.255.0.0
    * Class C addresses include 192.0.0.0 through 223.255.255.0
    * Class D addresses include 224.0.0.0 through 239.255.255.0
    Correct answer: A
    Class A addresses include 1.0.0.0 through 126.0.0.0
    Class B addresses include 128.0.0.0 through 191.255.0.0
    Class C addresses include 192.0.0.0 through 223.255.255.0
    Class D addresses include 224.0.0.0 through 239.255.255.0
  7. Which IP Address Class can have 16 million subnets but support 254 hosts?
    * Class C
    * Class A
    * Class B
    * Class D
    Correct answer: A
    Possible Subnets IP Address Class Possible Hosts
  8. A 16M.
    64K B 64K
    16M C 254
  9. Which IP Address Class can have 64,000 subnets with 64,000 hosts per subnet?
    * Class B
    * Class A
    * Class C
    * Class D
    Correct answer: A
    IP Address Class Possible Subnets Possible Hosts
  10. A 16M
    64K B 64K
    16M C 254


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