CompTIA Network+ N10-007 Certification Guide
Chapter 5 IPv4 and IPv6 Addresses
1) How many bits are in an IPv4 address?
A) 32
B) 64
C) 128
D) 256
2) How many octets are in an IPv4 address?
A) 2
B) 4
C) 6
D) 8
3) How many bits per octet in an IPv4 address?
A) 2
B) 4
C) 6
D) 8
4) What is the result of the binary conversion in the example shown here?
128
64
32
16
8
4
2
1
1
0
0
1
0
1
1
0
A) 105
B) 256
C) 128
D) 150
5) What is the result of the binary conversion in the example shown here?
128
64
32
16
8
4
2
1
1
0
0
0
0
0
0
0
A) 128
B) 256
C) 32
D) 127
6) What is the binary version of the decimal number 49?
A) 10110001
B) 00110001
C) 00110010
D) 00111010
128
64
32
16
8
4
2
1
0
0
1
1
0
0
0
1
7) What are sections A and B of the IP address?
A) Section A are used bits, and Section B are unused bits.
B) Section A is the network portion, and Section B is the host portion.
C) Section A equals 8 bits, and Section B equals 0 bits.
D) Section A equals 255, and Section B are all 0s.
8) The IP address range of 172.16.0.0 – 172.31.255.255 is what address class?
A) A
B) B
C) C
D) D
9) Which IP addresses assignment method leads to less administrative efforts for Information
Technology professionals?
A) Statically
B) Manually
C) BOOTP
D) DHCP
10) What is the network address for APIPA?
A) 169.254.0.0/16
B) 172.16.0.0/16
C) 192.168.0.0/24
D) 10.0.0.0/8
11) You have an IP address with a prefix notation of /27. What is the dotted-decimal form of the
subnet mask?
A) 255.255.255.0
B) 255.255.255.128
C) 255.255.255.192
D) 255.255.255.224
12) You have a subnet mask of 255.255.255.248. What is the prefix notation?
A) /29
B) /28
C) /27
D) /26
13) How many subnets do you get with a subnet of 192.168.1.0/28?
A) 12
B) 13
C) 16
D) 20
14) How many hosts can you have with a subnet of 192.168.1.0/28?
A) 30
B) 14
C) 16
D) 6
15) IPv6 no longer supports the ability to fragment packets.
16) How many bits are used for an IPv6 address?
A) 256
B) 128
C) 64
D) 32
17) What symbol can be used to represent a group of consecutive 0s in an IPv6 address?
A) Semicolon
B) Double semicolon
C) Double colon
D) Period
18) What format can be used to represent the low order 64 bits of an IPv6 address by
reformatting a devices MAC address?
A) EUI-48
B) IEEE 802.3ar
C) IEEE 802.3ab
D) EUI-64
19) Which data flow is not supported by IPv6?
A) Broadcast
B) Anycast
C) Unicast
D) Multicast
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20) Which option is not a valid representation of the 2001:0000:35d0:0000:5600:abed:e930:0001
address?
A) 2001:0000:35d0::5600:abed:e930:0001
B) 2001::35d0:0:56:abed:e930:0001
C) 2001:0:35d0:0:5600:abed:e930:1
D) 2001::35d0:0:5600:abed:e930:1
21) What practice allows you to further subnet a network as best as possible regarding the
number of devices that need to be accommodated in each network?
A) Classful addressing
B) DDN
C) Native VLAN
D) VLSM
22) What are two IPv6 transition technologies that can coexist with IPv4 to help ensure a smooth
transition from IPv4 to IPv6?
A) Dual stack
B) Anycast
C) EUI-64
D) Tunneling
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Answer: A, D
Explanation: IPv6/IPv4 tunneling is often referred to as 6to4 or 4to6 tunneling, depending on
which protocol is being tunneled (IPv4 or IPv6). These are just some of the many tunneling
mechanisms devised in order to ensure a smooth transition from IPv4 to IPv6. In fact, thanks to
dual stack and tunneling features, it is very unlikely that you will see IPv4 ever completely go
away in your lifetime.
Chapter: Chapter 5: IPv4 and IPv6 Addresses
Remediation: Need for IPv6
23) IPv6 can use a DHCPv6 server for the allocation of IPv6 addressing to hosts. Another IPv6
addressing option utilizes the IPv6 Neighbor Discovery Protocol (NDP) to discover the first
portion of the IPv6 address (network prefix) from local routers, and the host can create its own
host ID. What standard is commonly used by an IPv6 host to generate its own 64-bit host ID?
A) 6to4
B) Teredo
C) EUI-64
D) DORA
24) IPv6 enables hosts to generate their own IPv6 addresses without the need for a DHCPv6
server. This is referred to as stateless address autoconfiguration (SLAAC) and utilizes the
Neighbor Discovery Protocol (NDP) that is built into the IPv6 protocol. What are the some of the
packet types associated with the NDP process?
A) Router Solicitation, Router Advertisement
B) DHCPDiscover, DHCPOffer
C) IPCP configure-request, IPCP configure-ack
D) Down, init, two-way, exstart, exchange