“University of Maryland University College ITEC 626 Final Examinations

Name:
.

Answer all questionssuccinctly and clearly, explain your answer; show all your work
to earn full credit. The
explanations need to be brief, but complete, logical, and to the point. Please do not quote, or cite any
references, textbooks or anybody else, use your own words.
Note: answers without explanations, will not
receive credit; answers with quotes, cites or references from any source will
receive zero credit.
Answer in the space
provided or add lines if needed.
Please note this
is an open book/notes exam, it should be completed individually, not shared. Points will be deducted for duplicate
answers.
Save the completed exam in MS Word as
<YourLastname-finalexam>. Submit your answers, via the Blackboard Learn
Assignment folder before 11:30 PM on Saturday 8/9/2015.Late submissions
will incur a penalty of 10 points each day

1.
[5 points] The Protocolfield used in
IPv4 header is not present in the fixed IPv6 header. Why not? Explain your answer

2.

a.
[2
points] Can a machine with a single DNS name have
multiple IP addresses?

b.
[3 points] How could this occur?

3.
[10
points] Describe a way to
re-assemble IP fragments at the destination

4.
[10 points]
When a mobile host is not at home, packets sent to the home LAN are intercepted
by its home agent on the LAN. For an IP network on an 802.3 LAN, how does the
home agent accomplish this interception? Explain your answer

5.
[10
points]Many companies have a policy
of having two (or more) routers connecting the company to the Internet to
provide some redundancy in case one of them goes down. Is this policy still
possible with NAT? Explain your answer

6.
[10 points] Give two reasons why networks might use an error-correcting code instead
of error detection and retransmission

7.
[10
points] List two ways in which
WiMAX is similar to 802.11, and two ways in which it is different from 802.11

[10 points]Explain
succinctly the difference between the database of a network management
system and its MIB.

[10 points]How
do you implement each (i.e. the database and the MIB) in a network
management system?

You are establishing small company with your network managed by a
network management system:

[10 points] List
the five functional network management applications that you will
implement

[10 points] Give
examples of each functional application

University of Maryland University CollegeITEC 626 Final Examinations Name:
.Answer all questionssuccinctly and clearly, explain your answer; show all your work
to earn full credit. The
explanations need to be brief, but complete, logical, and to the point. Please do not quote, or cite any
references, textbooks or anybody else, use your own words. Note: answers without explanations, will not
receive credit; answers with quotes, cites or references from any source will
receive zero credit.Answer in the space
provided or add lines if needed.Please note this
is an open book/notes exam, it should be completed individually, not shared. Points will be deducted for duplicate
answers.Save the completed exam in MS Word as
<YourLastname-finalexam>. Submit your answers, via the Blackboard Learn
Assignment folder before 11:30 PM on Saturday 8/9/2015.Late submissions
will incur a penalty of 10 points each day1.
[5 points] The Protocolfield used in
IPv4 header is not present in the fixed IPv6 header. Why not? Explain your answer2.
a.
[2
points] Can a machine with a single DNS name have
multiple IP addresses? b.
[3 points] How could this occur?3.
[10
points] Describe a way to
re-assemble IP fragments at the destination4.
[10 points]
When a mobile host is not at home, packets sent to the home LAN are intercepted
by its home agent on the LAN. For an IP network on an 802.3 LAN, how does the
home agent accomplish this interception? Explain your answer5.
[10
points]Many companies have a policy
of having two (or more) routers connecting the company to the Internet to
provide some redundancy in case one of them goes down. Is this policy still
possible with NAT? Explain your answer6.
[10 points] Give two reasons why networks might use an error-correcting code instead
of error detection and retransmission7.
[10
points] List two ways in which
WiMAX is similar to 802.11, and two ways in which it is different from 802.11”