COMPUTER NETWORK QUESTIONS -07

In a _______ name space, a name is a sequence of characters without structure.
This is the correct answer.
A) flat
B) hierarchical
C) organized
D) None of the choices are correct


In a _________name space, each name is made of several parts.
A)       flat
This is the correct answer.
B) hierarchical
C) organized
D) None of the choices are correct


In the DNS, the names are defined in ___________ structure.
A) a linear list
This is the correct answer.
B) an inverted-tree
C) a graph
D) None of the choices are correct
 
Each node in the tree has a _______, which is a string with a maximum of ___ characters.
A) label; 127
B) name; 255
This is the correct answer.
C) label; 63
D) None of the choices are correct

The root of the DNS tree is _______.
A) a string of characters
B) a string of 63 characters
This is the correct answer.
C) an empty string
D) None of the choices are correct

A full domain name is a sequence of labels separated by ________.
A) semicolons
This is the correct answer.
B) dots
C) colons
D) None of the choices are correct

If a label is terminated by a null string, it is called a __________.
A) PQDN
This is the correct answer.
B) FQDN
C) SQDN
D) None of the choices are correct

If a label is not terminated by a null string, it is called a __________.
This is the correct answer.
A) PQDN
B) FQDN
C) SQDN
D) None of the choices are correct

A _________ is a subtree of the domain name space.
A) label
B) name
This is the correct answer.
C) domain
D) None of the choices are correct

What a server is responsible for or has authority over is called a _________.
A) domain
B) label
This is the correct answer.
C) zone
D) None of the choices are correct

A _______ is a server whose zone consists of the whole tree.
A) domain server
B) zone server
This is the correct answer.
C) root server
D) None of the choices are correct

A ________ server loads all information from the disk file.
This is the correct answer.
A) primary
B) secondary
C) zone
D) None of the choices are correct

A ________ server loads all information from the primary server.
A) primary
This is the correct answer.
B) secondary
C) zone
D) None of the choices are correct

When the secondary downloads information from the primary, it is called ______ transfer.
A) domain
This is the correct answer.
B) zone
C) label
D) None of the choices are correct

In the Internet, the domain name space (tree) is divided into _______ different sections:
This is the correct answer.
A) three
B) two
C) four
D) None of the choices are correct

The _______ domains define registered hosts according to their generic behavior.
This is the correct answer.
A) generic
B) country
C) inverse
D) None of the choices are correct

The first level in the generic domains section allows ______ possible labels.
A) 10
B) 12
C) 16
This is the correct answer.
D) None of the choices are correct

The ____________ domain section uses two-character country abbreviations.

A) generic
This is the correct answer.
B) country
C) inverse
D) None of the choices are correct

The _________ domain is used to map an address to a name.
A) generic
B) country
This is the correct answer.
C) inverse
D) None of the choices are correct

In __________ resolution, the resolver expects the server to supply the final answer.
A) iterative
This is the correct answer.
B) recursive
C) straight
D) None of the choices are correct

In __________ resolution, the server returns the IP address of the server that it thinks can resolve the query.
This is the correct answer.
A) iterative
B) recursive
C) straight
D) None of the choices are correct

A pointer query involves the _______ domain.
This is the correct answer.
A) inverse
B) reverse
C) root
D) None of the choices are correct

DNS can use the services of ________ using the well-known port 53.
A) UDP
B) TCP
This is the correct answer.
C) either UDP or TCP
D) None of the choices are correct