Practice Exam Test Questions
Choose the letter of the best answer in each questions.
1. A full domain name is a sequence of labels separated by ________.
A) semicolons
B) dots
C) colons
D) none of the above
Answer: Option B
Solution:
2. A ________ server loads all information from the primary server.
A) primary
B) secondary
C) zone
D) none of the above
Answer: Option B
Solution:
3. The first level in the generic domains section allows ______ possible labels.
A) 10
B) 12
C) 16
D) none of the above
Answer: Option D
Solution:
4. If a label is not terminated by a null string, it is called a __________.
A) PQDN
B) FQDN
C) SQDN
D) none of the above
Answer: Option A
Solution:
5. What a server is responsible for or has authority over is called a _________.
A) domain
B) label
C) zone
D) none of the above
Answer: Option C
Solution:
6. DNS can use the services of ________ using the well-known port 53.
A) UDP
B) TCP
C) either (a) or (b)
D) none of the above
Answer: Option C
Solution:
7. In the domain name chal.atc.fhda.edu, _______ is the most specific label.
A) chal
B) atc
C) fhda
D) none of the above
Answer: Option A
Solution:
8. The root of the DNS tree is _______.
A) a string of characters
B) a string of 63 characters
C) an empty string
D) none of the above
Answer: Option C
Solution:
9. When the secondary downloads information from the primary, it is called ______ transfer.
A) domain
B) zone
C) label
D) none of the above
Answer: Option B
Solution:
10. A _______ is a server whose zone consists of the whole tree.
A) domain server
B) zone server
C) root server
D) none of the above
Answer: Option C
Solution:
11. A pointer query involves the _______ domain.
A) inverse
B) reverse
C) root
D) none of the above
Answer: Option A
Solution:
12. Each node in the tree has a _______, which is a string with a maximum of ___ characters.
A) label; 127
B) name; 255
C) label; 63
D) none of the above
Answer: Option C
Solution:
13. To have a hierarchical name space, a ______________ was designed.
A) domain space
B) domain name
C) domain name space
D) none of the above
14. The _______ domains define registered hosts according to their generic behavior.
A) generic
B) country
C) inverse
D) none of the above
Answer: Option A
Solution:
15. In a _________name space, each name is made of several parts.
A) flat
B) hierarchical
C) organized
D) none of the above
Answer: Option B
Solution:
16. In a _______ name space, a name is assigned to an address. A name in this space is a sequence of characters without structure.
A) flat
B) hierarchical
C) organized
D) Connection-Oriented
Answer: Option A
Solution:
17. The _________ domain is used to map an address to a name.
A) generic
B) country
C) inverse
D) none of the above
Answer: Option C
Solution:
18. The ____________ domain section uses two-character country abbreviations.
A) generic
B) country
C) inverse
D) Bandwidth
Answer: Option B
Solution:
19. A _________ is a subtree of the domain name space.
A) label
B) name
C) domain
D) none of the above
Answer: Option C
Solution:
20. In the DNS, the names are defined in ___________ structure.
A) a linear list
B) an inverted-tree
C) a graph
D) none of the above
Answer: Option B
Solution:
21. If a label is terminated by a null string, it is called a __________.
A) PQDN
B) FQDN
C) SQDN
D) none of the above
Answer: Option B
Solution:
22. In the Internet, the domain name space (tree) is divided into _______ different sections:
A) three
B) two
C) four
D) none of the above
Answer: Option A
Solution:
23. In __________ resolution, the server returns the IP address of the server that it thinks can resolve the query.
A) iterative
B) recursive
C) straight
D) none of the above
Answer: Option A
Solution:
24. In the domain name chal.atc.fhda.edu, _______ is the least specific label.
A) chal
B) atc
C) edu
D) none of the above
Answer: Option C
Solution:
25. A host with the domain name pit.arc.nasa.gov. is on the _______ level of the DNS hierarchical tree. (The root is level one.)
A) third
B) fourth
C) fifth
D) none of the above
Answer: Option C
Solution:
26. In __________ resolution, the resolver expects the server to supply the final answer.
A) iterative
B) recursive
C) straight
D) none of the above
Answer: Option B
Solution:
27. A ________ server loads all information from the disk file.
A) primary
B) secondary
C) zone
D) none of the above
Answer: Option A
Solution:
Complete List of Chapter Quiz in Data Communications and Networking
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MCQ in Domain Name System (pdf)
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