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Worksheets7.3.1 Network Reconnaissance
Total questions: 3
Worksheet time: 9mins
What is the total number of bits used in an IPv4 address?
16 Bits
64 Bits
128 Bits
32 Bits
What does the network portion of an IPv4 address identify?
The specific device
The Internet Service Provider
The Local Area Network (LAN)
The Wide Area Network (WAN)
What does the host portion of an IPv4 address identify?
The Local Area Network (LAN)
The specific device
The Internet Service Provider
The Wide Area Network (WAN)
What is the primary function of a subnet mask in a network?
To identify the network bits versus the host bits
To encrypt data packets
To increase the network speed
To provide physical security to the network
Which subnet mask is typically used for a network with the first octet ranging from 128 to 191?
255.0.0.0
255.255.0.0
255.255.255.0
255.255.255.255
What does the subnet mask 255.255.255.0 correspond to in slash notation?
/8
/16
/24
/32
Which of the following is NOT a correct representation of a subnet mask in dotted decimal notation?
255.0.0.0
255.255.0.0
255.255.255.0
256.255.255.0
What does the slash notation /16 indicate about the subnet bits?
16 bits are set to 0
16 bits are set to 1
8 bits are set to 1
24 bits are set to 1
What is the purpose of an IP address with all 0s in the host bit positions in a network?
To identify the network itself
To broadcast packets to all devices
To provide a gateway for external networks
To assign a specific device on the network
Which of the following is an example of a broadcast address used in networks?
156.30.0.0
205.168.13.0
64.255.255.255
89.0.0.0
Given a subnet mask of 255.255.255.0, are the IP addresses 145.153.72.112 and 145.153.71.120 in the same network or different networks?
Same network
Different networks
Same broadcast domain
None of the above
Given a subnet mask of 255.0.0.0, are the IP addresses 137.153.72.112 and 137.153.71.120 in the same network or different networks?
Same network
Different networks
Not enough information
Invalid IP addresses
Given an IP address of 188.10.18.2 and a subnet mask of 255.255.0.0, what is the network address?
0.0.18.2
188.10.0.0
188.10.18.0
188.0.0.0
Given an IP address of 192.149.24.191 and a subnet mask of 255.255.255.0, what is the host address?
192.149.24.0
192.149.0.0
0.0.24.191
0.0.0.191
