CIT 345 Final Actual EXAM Newest 2025/2026 With
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In classful addressing, the Class B IPv4 address network
ID is located in the ____. - Answer-first 16 bits
In classful addressing, Class C IPv4 address host
information is located in the ____. - Answer-last 8 bits
Within a classful addressing subnet mask, the ____ bits
indicate that corresponding bits in an IPv4 address contain
network information. - Answer-1
Within a classful addressing, ____ is the default subnet
mask for a Class C address. - Answer-255.255.255.0
The result from ANDing with 11001111 is ____. - Answer-
10000001
When using classful IPv4 addressing, a network ID always
ends with an octet of - Answer-0
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Because the octets equal to 0 and 255 are ____, only the
numbers 1 through 254 can be used for host information in
an IPv4 address. - Answer-reserved
The ___ gateway is the gateway that first interprets its
outbound requests to other subnets, and then interprets its
inbound requests from other subnets. - Answer-default
The gateways that make up the Internet backbone are
called ___ gatways. - Answer-core
In IPv4 addressing, each IP address is a unique ___
number. - Answer-32-bit
In IPv4 addressing, a node with an IP address of
168.34.88.29 belongs to a Class ___ network. - Answer-B
In IPv4 addressing, an IP address whose first octet is in
range of 192-223 belongs to a Class ___ network. -
Answer-C
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In dotted decimal notation, a(n) ____ separates each
decimal. - Answer-period
The default subnet mask for a Class B network is _____. -
Answer-255.255.0.0
Suppose your computer's IP address is 155.61.9.198, and
your network administrator has not yet subnetted the
network to which you're connected. What is your
computer's subnet mask? - Answer-255.255.0.0
Convert the following subnet mask into its dotted-decimal
equivalent: 11111111 11111111 11111000 00000000. -
Answer-255.255.248.0
On a network with an IP address of 140.133.28.72 ( or
10001100 10000101 0001110001001000) and a subnet
mask of 255.248.0.0 ( or 11111111 11111000
000000000000), what is the network ID? - Answer-
140.248.0.0 (or 10001100 11111000 00000000 00000000)
As a networking consultant, you've been asked to help
expand a client's TCP/IP network. The network