What is the default class A subnet mask?
A.
255.0.0.0
255.0.0.0 is a Class A default subnet mask.
Incorrect Answers:
B: 255.255.0.0 is a Class B default subnet mask.
C: 25.255.255.0 is a Class C default subnet mask.
D: 255.255.255.255 is not really a subnet mask, a subnet mask separates a network from a host.
In this case just the full address is used.
QUESTION 61
Which extension header is identified by value 44 in the Next Header field?
Fragment extension header
B.
255.255.0.0
Routing extension header
C.
255.255.255.0
Hop-by-bop extension header
D.
255.255.255.255
Destination options extensions header
A.
255.0.0.0
255.0.0.0 is a Class A default subnet mask.
Incorrect Answers:
B: 255.255.0.0 is a Class B default subnet mask.
C: 25.255.255.0 is a Class C default subnet mask.
D: 255.255.255.255 is not really a subnet mask, a subnet mask separates a network from a host.
In this case just the full address is used.
QUESTION 61
Which extension header is identified by value 44 in the Next Header field?
Fragment extension header
A.
255.0.0.0
255.0.0.0 is a Class A default subnet mask.
Incorrect Answers:
B: 255.255.0.0 is a Class B default subnet mask.
C: 25.255.255.0 is a Class C default subnet mask.
D: 255.255.255.255 is not really a subnet mask, a subnet mask separates a network from a host.
In this case just the full address is used.
QUESTION 61
Which extension header is identified by value 44 in the Next Header field?
Fragment extension header
B.
255.255.0.0
Routing extension header
C.
255.255.255.0
Hop-by-bop extension header
D.
255.255.255.255
Destination options extensions header
Explanation:
The following table should be memorized, these are the code mappings.
Incorrect Answers:
B: The proper codes for these headers can be searched in the given table above.
C: The proper codes for these headers can be searched in the given table above.
D: The proper codes for these headers can be searched in the given table above.