01
True or false
1 point
The IPv4 address 203.0.113.7 is made up of four 8-bit octets, for a total of 32 bits. Is this statement true or false?
Free Practice Quiz Question List
1 IPv4 Addressing and CIDR Fundamentals Online Quiz Questions
Use this free practice quiz with 20 questions to review 1 IPv4 Addressing and CIDR Fundamentals, test your knowledge, and prepare for your next test or exam.
20 questions
02
Choose one
1 point
What decimal value does the binary octet 01001101 represent?
- A
69
- B
77
- C
78
- D
141
03
Choose one
1 point
For the address 172.16.5.9/16, which statement correctly describes the prefix and host portions?
- A
The first 8 bits are the network prefix, and 24 bits are host bits.
- B
The first 16 bits are the network prefix, and 16 bits are host bits.
- C
The first 24 bits are the network prefix, and 8 bits are host bits.
- D
The first 16 bits are host bits, and 16 bits are the network prefix.
04
Choose all
1 point
Select all statements that correctly describe subnet masks and network-address calculation.
- A
In a valid contiguous mask, all the 1 bits come before the 0 bits.
- B
The 1 bits in a subnet mask identify the network prefix.
- C
The 0 bits in a subnet mask identify the network prefix.
- D
A network address is found by applying bitwise AND to an IP address and its subnet mask.
05
Written response
1 point
What dotted-decimal subnet mask corresponds to the CIDR prefix /30?
06
True or false
1 point
True or false: 172.16.5.9/16 must be the starting network address of its block because it appears before the slash.
- A
True
- B
False
07
Written response
1 point
How many addresses are in a CIDR block with prefix /27? Enter an exact whole number.
08
Choose one
1 point
Which 8-bit binary octet represents the decimal value 77?
- A
01001011 - B
01001101 - C
01010101 - D
01101101
09
Choose all
1 point
Select all statements that are accurate about 8-bit octets and their place values.
- A
The 1 bits in
01001101sum to 77. - B
The binary octet
11000000represents 192. - C
An 8-bit octet can represent decimal values from 0 through 256.
- D
The rightmost bit in an octet has place value 1.
10
Open ended
1 point
For 172.16.5.9/16, explain how the prefix length determines the subnet mask and how applying that mask gives the network address. State both the mask and the network address.
11
Choose one
1 point
How many addresses are in an IPv4 block with prefix /0?
- A
32
- B
4,294,967,296
- C
2,147,483,648
- D
4,294,967,295
12
Choose one
1 point
Which binary string represents the IPv4 address 192.168.10.77?
- A
11000000.10101000.00001010.01001101 - B
11000000.10101000.00001010.01001110 - C
11000000.10101000.00001011.01001101 - D
11000000.10100100.00001010.01001101
13
Choose one
1 point
Which value cannot be used as one decimal octet in an IPv4 address?
- A
256
- B
255
- C
0
- D
128
14
Choose one
1 point
How many bits are in an IPv4 address?
- A
32 bits
- B
16 bits
- C
24 bits
- D
64 bits
15
True or false
1 point
True or false: In CIDR notation, the network prefix length is inferred from an IPv4 address’s first octet.
- A
True
- B
False
16
Written response
1 point
Convert the 8-bit binary octet 01011011 to decimal. Enter the value without a unit.
17
Choose one
1 point
Which subnet mask corresponds to the IPv4 CIDR prefix /27?
- A
255.255.255.240
- B
255.255.255.224
- C
255.255.255.192
- D
255.255.255.128
18
Written response
1 point
Compute the bitwise AND of 11010110 and 10111100. Enter the result as an 8-bit binary string.
19
Fill in the blank
1 point
A binary calculation requires 01101100 AND 01010110. The resulting 8-bit string is .
20
Fill in the blank
1 point
A learner claims that 10110101 AND 11101100 equals 10101100. Recalculate the operation; the correct 8-bit result is .
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