 |
 |
|
|
Which one of the following is not true?
|
multiple hostnames may correspond to a single IP address |
a single hostname may correspond to many IP addresses |
a single hostname may correspond to a single IP address |
none of the mentioned |
In a _______ name space, a name is assigned to an address. A name in this space is a sequence of characters without structure.
|
flat |
hierarchical |
organized |
none of the above |
In a _________name space, each name is made of several parts
|
flat |
hierarchical |
organized |
none of the above |
To have a hierarchical name space, a ______________ was designed.
|
domain space |
main name |
domain name space |
none of the above |
In the DNS, the names are defined in ___________ structure.
|
a linear list |
an inverted-tree |
a graph |
none of the above |
Each node in the tree has a _______, which is a string with a maximum of ___ characters.
|
label; 127 |
name; 255 |
label; 63 |
none of the above |
The root of the DNS tree is _______.
|
a string of characters |
a string of 63 characters |
an empty string |
none of the above |
A full domain name is a sequence of labels separated by ________.
|
semicolons |
dots |
colons |
none of the above |
If a label is terminated by a null string, it is called a __________.
|
PQDN |
FQDN |
SQDN |
none of the above |
If a label is terminated by a null string, it is called a __________.
|
PQDN |
FQDN |
SQDN |
none of the above |
A _________ is a subtree of the domain name space
|
label |
name |
domain |
none of the above |
What a server is responsible for or has authority over is called a _________.
|
domain |
label |
zone |
none of the above |
A _______ is a server whose zone consists of the whole tree.
|
domain server |
zone server |
root server |
none of the above |
