Chapter 5 Quiz

1		In classless addressing, __________ is assigned to a organization.
			A)	a variable-length block
			B)	a fixed-length
			C)	a fixed number of blocks
			D)	none of the above
2		The number of addresses assigned to an organization in classless addressing _______.
			A)	can be any number
			B)	must be a multiple of 256
			C)	must be a power of 2
			D)	none of the above
3		The first address assigned to an organization in classless addressing _______.
			A)	must be a power of 4
			B)	must be evenly divisible by the number of addresses
			C)	must belong to one of the A, B, or C classes
			D)	none of the above
4		Which address could be the beginning address of a block of 32 classless addresses?
			A)	2.4.6.5
			B)	2.4.6.16
			C)	2.4.6.64
			D)	none of the above
5		Which address could be the beginning address of a block of 16 classless addresses?
			A)	2.4.6.5
			B)	2.4.6.15
			C)	2.4.6.62
			D)	none of the above
6		Which address could be the beginning address of a block of 256 classless addresses?
			A)	2.4.6.5
			B)	2.4.6.15
			C)	2.4.6.0
			D)	none of the above
7		What is the first address of a block of classless addresses if one of the addresses is 12.2.2.76/27?
			A)	12.2.2.0
			B)	12.2.2.32
			C)	12.2.2.64
			D)	none of the above
8		What is the first address of a block of classless addresses if one of the addresses is 12.2.2.76/10?
			A)	12.0.0.0
			B)	12.2.0.0
			C)	12.2.2.2
			D)	none of the above
9		What is the first address of a block of classless addresses if one of the addresses is 12.2.2.127/28?
			A)	12.2.2.0
			B)	12.2.2.96
			C)	12.2.2.112
			D)	none of the above
10		Find the number of addresses in a block of classless addresses if one of the addresses is 12.2.2.7/24.
			A)	32
			B)	64
			C)	256
			D)	none of the above
11		Find the number of addresses in a block of classless addresses if one of the addresses is 12.2.2.7/30.
			A)	2
			B)	4
			C)	8
			D)	none of the above
12		What is the last address of a block of classless addresses if one of the addresses is 12.2.2.127/28?
			A)	12.2.2.16
			B)	12.2.2.112
			C)	12.2.2.127
			D)	none of the above
13		What is the last address of a block of classless addresses if one of the addresses is 12.2.2.6/30?
			A)	12.2.2.2
			B)	12.2.2.6
			C)	12.2.2.7
			D)	none of the above
14		In fixed-length subnetting, the number of subnets must _______.
			A)	be a power of 2
			B)	be a multiple of 128
			C)	be divisible by 128
			D)	none of the above
15		An organization is granted a block; one address is 2.2.2.64/20. The organization needs 10 subnets. What is the subnet prefix length?
			A)	/20
			B)	/24
			C)	/25
			D)	none of the above
16		An organization is granted a block; one address is 2.2.2.64/25. If the subnet prefix length is /28, what is the maximum number of subnets?
			A)	2
			B)	4
			C)	8
			D)	none of the above
17		An organization is granted a block of classless addresses with the starting address 199.34.76.64/28. How many addresses are granted?
			A)	8
			B)	16
			C)	32
			D)	none of the above
18		An organization is granted a block of classless addresses with the starting address 199.34.76.128/29. How many addresses are granted?
			A)	8
			B)	16
			C)	32
			D)	none of the above
19		An organization is granted a block of classless addresses with the starting address 199.34.32.0/27. How many addresses are granted?
			A)	8
			B)	16
			C)	32
			D)	none of the above
20		What is the default mask for class A in CIDR notation?
			A)	/9
			B)	/8
			C)	/16
			D)	none of the above
21		What is the default mask for class B in CIDR notation?
			A)	/9
			B)	/8
			C)	/16
			D)	none of the above
22		What is the default mask for class C in CIDR notation?
			A)	/24
			B)	/8
			C)	/16
			D)	none of the above
23		In ________ addressing, when an address is given, we can find the beginning address and the range of addresses.
			A)	classless
			B)	classful
			C)	both a and b
			D)	none of the above
24		In classless addressing, the ______ is another name for the common part of the address range.
			A)	suffix
			B)	prefix
			C)	netid
			D)	none of the above
25		In classless addressing, the _______ is the varying part (similar to the hostid).
			A)	suffix
			B)	prefix
			C)	hostid
			D)	none of the above
26		In classless addressing, the prefix length defines the _____________.
			A)	netid
			B)	hostid
			C)	mask
			D)	none of the above
27		In a block, the prefix length is /22; what is the mask?
			A)	255.255.255.0
			B)	255.255.252.0
			C)	255.255.0.0
			D)	none of the above
28		In a block, the prefix length is /15; what is the mask?
			A)	255.254.0.0
			B)	255.255.255.0
			C)	255.255.255.128
			D)	none of the above
29		In a block, the mask is 255.255.192.0; what is the prefix length?
			A)	/20
			B)	/28
			C)	/18
			D)	none of the above
30		In a block, the mask is 255.255.255.224; what is the prefix length?
			A)	/20
			B)	/19
			C)	/20
			D)	none of the above