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Home Cisco® 200-150

Cisco® 200-150 Exam Practice Questions (P. 5)

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Question #21
Which three statements are true concerning RFC 1918 IP addresses? (Choose three.)
  1. A
    They are globally routable.
  2. B
    They are not globally routable.
  3. C
    They must not be filtered at Internet border interfaces.
  4. D
    They should be filtered at Internet border interfaces.
  5. E
    They include 10.0.0.0/8, 172.16.0.0/16, and 192.168.1.0/24.
  6. F
    They include 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16.

Correct Answer:
BDF
"The Internet Assigned Numbers Authority (IANA) has reserved the following three blocks of the IP address space for private internets:
10.0.0.0 - 10.255.255.255 (10/8 prefix)
172.16.0.0 - 172.31.255.255 (172.16/12 prefix)
192.168.0.0 - 192.168.255.255 (192.168/16 prefix)"
http://tools.ietf.org/html/rfc1918

Question #22
Which two statements describe the purpose of RFC 1918? (Choose two.)
  1. A
    Establish a range of IP addresses that are dedicated to the growing use of multicast video.
  2. B
    Establish a range of IP addresses that are dedicated to the growing use of peer-to-peer file- sharing applications.
  3. C
    Establish a range of IP addresses that are dedicated to use on internal networks.
  4. D
    Establish a range of IP addresses to address the shrinking pool of globally routable addresses.
  5. E
    Delay the transition to IPv6.

Correct Answer:
CD
http://tools.ietf.org/html/rfc1918

Question #23
What are three reasons to migrate from IPv4 to IPv6? (Choose three.)
  1. A
    IPv6 eliminates the requirement for NAT.
  2. B
    IPv6 includes enough IP addresses to allocate more than four billion IP addresses to every person on earth.
  3. C
    IPv6 eliminates the need for VLANs.
  4. D
    Hosts can be assigned an IP address without DHCP.
  5. E
    Hosts can be assigned an IP address without DNS.

Correct Answer:
ABD
"IPv6 address contains 32 characters vs. 12 in IPv4. This will grant no ip address translation and dynamic changes. We will even don't need NAT! " http://www.ipv6.ru/english/history/goipv6.php
" IPv6 uses a 128-bit address, allowing 2128, or approximately 3.41038 addresses, or more than 7.91028 times as many as IPv4, which uses 32-bit addresses" http://en.wikipedia.org/wiki/IPv6

Question #24
Which two options describe services that are provided by TCP? (Choose two.)
  1. A
    session multiplexing
  2. B
    EtherTypes identify destination services
  3. C
    connection-oriented
  4. D
    best-effort packet delivery
  5. E
    binary translation

Correct Answer:
AC
"TCP is a connection-oriented protocol."
http://www.diffen.com/difference/TCP_vs_UDP

Question #25
Which two options describe services that are provided by UDP? (Choose two.)
  1. A
    session multiplexing
  2. B
    segmentation
  3. C
    connection-oriented
  4. D
    reliable packet delivery
  5. E
    best-effort packet delivery

Correct Answer:
AE
"UDP is faster because there is no error-checking for packets." http://www.diffen.com/difference/TCP_vs_UDP

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