Network+ Ch7

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a2k2d2
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232600
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Network+ Ch7
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2013-09-03 13:55:31
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Network Ch7
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Network+ Ch7
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  1. What is the range for Class A IP addresses?
    10.0.0.0 through 10.255.255.255
  2. What is the range for Class B IP addresses?
    172.16.0.0 through 172.31.255.255
  3. What is the range for Class C IP addresses?
    192.168.0.0 through 192.168.255.255
  4. What is the range for Class D IP addresses?

    What are Class D addresses used for?
    224.0.0.0 through 239.0.0.0

    Multicast
  5. What is the range for Class E IP addresses?

    What are Class E addresses used for?
    240.0.0.0 through 255.255.255.255

    Scientific research
  6. What does APIPA stand for?
    Automatic Private IP Addressing
  7. What is the range for APIPA?
    169.254.0.1 through 69.254.255.254
  8. What are link-local addresses?
    They are addresses that are intended only for communications within the segment of a local network (a link) or a point-to-point connection that a host is connected to. Routers do not forward packets with link-local addresses
  9. What are unique local addresses?
    They are private IPv6 addresses.  They are routable on a local network, but not on the Internet.
  10. Name some of the benefits of IPv6 over IPv4.
    • More available IP addresses
    • More simple header
    • Options for authentication and other security
  11. What defines a unicast address?
    An IP address assigned to an interface
  12. What defines a multicast address?
    One-to-many address
  13. What is the name for a 48-bit (6-byte) numerical address physically assigned to a network interface, such as a NIC?
    MAC address, aka hardware address
  14. What gives IPv6 the ability to reference more addresses than IPv4?
    IPv6 addresses are 128-bit (16-octet)

    IPv4 addresses are 32-bit (4-octet)
  15. What is the 127.0.0.1 address used for?
    Loopback or diagnostics
  16. Which of the following is not allowed on the Internet?

    A. 191.192.168.1
    B. 172.32.255.0
    C. 172.31.12.251
    D. 191.168.169.254
    C. 172.31.12.251
    (this multiple choice question has been scrambled)
  17. A host automatically configured with an address from which of the following ranges indicates an inability to contact a DHCP server?

    A. 169.254.0.x with a mask if 255.255.255.0
    B. 169.254.x.x with a mask of 255.255.0.0
    C. 169.254.x.x with a mask of 255.255.255.0
    D. 169.255.x.x with a mask of 255.255.0.0
    B. 169.254.x.x with a mask of 255.255.0.0
    (this multiple choice question has been scrambled)
  18. Which statement regarding private UP addresses is most accurate?

    A. Private addresses can only be used by a single administrative domain
    B. A remote host across the Internet cannot ping your host if it has a private address
    C. Private addresses cannot be used in intranets that require routing
    D. Private addresses must be assigned by a registrar or ISP
    B. A remote host across the Internet cannot ping your host if it has a private address
    (this multiple choice question has been scrambled)
  19. Which of the following is a valid Class A address?

    A. 191.10.0.1
    B. 127.10.0.1
    C. 128.10.0.1
    D. 126.10.0.1
    D. 126.10.0.1
    (this multiple choice question has been scrambled)
  20. Which of the following is a valid Class B address?

    A. 129.1.1.1
    B. 10.1.1.1
    C. 126.1.1.1
    D. 192.168.1.1
    A. 129.1.1.1
    (this multiple choice question has been scrambled)
  21. Which of the following describes a broadcast address?

    A. All host bits are on (1s).
    B. All host bits are off (0s).
    C. All network bits are on (1s).
    D. All network bits are off (0s).
    A. All host bits are on (1s).
    (this multiple choice question has been scrambled)
  22. Which of the following is a Layer 2 broadcast?

    A. 255.255.255.255
    B. F.FF.FF.EE.EE.EE
    C. FF.FF.FF.FF.FF.FF
    D. 255.0.0.0
    C. FF.FF.FF.FF.FF.FF
    (this multiple choice question has been scrambled)
  23. In a Class C IP address, how long is the network address?

    A. 32 bits
    B. 24 bits
    C. 8 bits
    D. 16 bits
    B. 24 bits
    (this multiple choice question has been scrambled)
  24. Which of the following is true when describing a unicast address?

    A. These are your typical publicly routable addresses, just like regular publicly routable addresses in IPv4
    B. Packets addressed to a unicast address are delivered to a single interface
    C. These addresses are meant for nonrouting purposes, but they are almost globally unique so it is unlikely they will have an address overlap
    D. These are like private addresses in IPv4 in that they are not meant to be routed
    B. Packets addressed to a unicast address are delivered to a single interface
    (this multiple choice question has been scrambled)
  25. A host is rebooted and you view the IP address that it was assigned.  The address is 169.123.13.34.  Which of the following happened?

    A. The host received an APIPA address.
    B. The host received a public address.
    C. The host received a multicast address.
    D. The host received a private address.
    B. The host received a public address.
    (this multiple choice question has been scrambled)
  26. How many bits are in a IPv6 address?
    128-bits
  27. Which of the following is true when describing a multicast address?

    A. These addresses are meant for nonrouting purposes, but they are almost globally unique so it is unlikely they will have an address overlap
    B. Packets are delivered to all interfaces identified by address.  This is also called a one-to-many address.
    C. Packets addressed to a unicast address from a multicast address are delivered to a single interface
    D. It identifies multiple interfaces and is delivered to only one address.  This address can also be called one-to-one-to-many.
    B. Packets are delivered to all interfaces identified by address.  This is also called a one-to-many address.
    (this multiple choice question has been scrambled)
  28. Which of the following is true when describing an anycast address?

    A. Packets are delivered to all interfaces identified by the address.  This is also called a one-to-many address.
    B. Packets addressed to a unicast address from an anycast address are delivered to a single interface
    C. This address identifies multiple interfaces, and the anycast packet is delivered to only one address.  This address can also be called one-to-one-to-many.
    D. These addresses are meant for nonrouting purposes, but they are almost globally unique so it is unlikely they will have an address overlap
    C. This address identifies multiple interfaces, and the anycast packet is delivered to only one address.  This address can also be called one-to-one-to-many.
    (this multiple choice question has been scrambled)
  29. You want to ping the loopback address of your local host.  Which two addresses could you type?

    A. ping 127.0.0.1
    B. ping 0.0.0.0
    C. ping ::1
    D. trace 0.0.::1
    • A. ping 127.0.0.1
    • C. ping ::1
  30. What two statements about IPv6 addresses are true?

    A. Leading zeros are required
    B. Two colons (::) are used to represent successive hexadecimal fields of zeros
    C. Two colons (::) are used to separate fields
    D. A single interface will have multiple IPv6 addresses of different types
    • B. Two colons (::) are used to represent successive hexadecimal fields of zeros
    • D. A single interface will have multiple IPv6 addresses of different types
  31. What two statements about IPv4 and IPv6 addresses are true?

    A. An IPv6 address is 32 bits long, represented in hexadecimal
    B. An IPv6 address is 128 bits long, represented in decimal
    C. An IPv4 address is 32 bits long, represented in decimal
    D. An IPv6 address is 128 bits long, represented in hexdecimal
    • C. An IPv4 address is 32 bits long, represented in decimal
    • D. An IPv6 address is 128 bits long, represented in hexdecimal
  32. Which of the following is a Class C network address?

    A. 192.255.254.0 255.255.255.0
    B. 127.0.0.1 255.255.255.0
    C. 128.0.0.0 255.255.0.0
    D. 10.10.10.0 255.255.255.0
    A. 192.255.254.0 255.255.255.0
    (this multiple choice question has been scrambled)
  33. Which of the following are private IP addresses? (choose 2)

    A. 12.0.0.1
    B. 168.172.19.39
    C. 172.20.14.36
    D. 172.33.194.30
    E. 192.168.24.43
    • C. 172.20.14.36
    • E. 192.168.24.43
  34. Which of the following is a valid IP address that can be used on the Internet (meaning the public addressing scheme)?

    A. 172.30.1.1
    B. 168.16.1.1
    C. 234.1.1.1
    D. 10.10.1.1
    B. 168.16.1.1
    (this multiple choice question has been scrambled)
  35. Which of the following is an invalid IP address for a host?

    A. 10.0.0.1
    B. 128.0.0.1
    C. 172.0.0.1
    D. 224.0.0.1
    D. 224.0.0.1
    (this multiple choice question has been scrambled)

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