Certification Questions

Q:

If a host on a network has the address 172.16.45.14/30, what is the subnetwork this host belongs to?

A) 172.16.45.0 B) 172.16.45.4
C) 172.16.45.8 D) 172.16.45.12
 
Answer & Explanation Answer: D) 172.16.45.12

Explanation:

A/30, regardless of the class of address, has a 252 in the fourth octet. This means we have a block size of 4 and our subnets are o,4,8,12,16, etc. Address 14 is obviously in the 12 subnet.

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Filed Under: CCNA

5 11619
Q:

Why should monitoring and measuring be used when trying to improve services?

A) To validate, direct, justify and intervene B) To validate, measure, monitor and change
C) To validate, plan, act and improve D) To validate, assign resources, purchase technology and train people
 
Answer & Explanation Answer: A) To validate, direct, justify and intervene

Explanation:
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Filed Under: ITIL Certification

2 11525
Q:

The Plan-Do-Check-Act cycle can be used to plan and implement Service Management Processes:
How many times should each stage of the cycle be visited?

A) There should be a single Plan and Do, and then Check and Act should be carried out multiple times to Implement Continual Improvement B) There should be a single %n. then the Do-Check-Act cycle should be repeated multiple times to Implement Continual improvement
C) The entire cycle should be repeated multiple times to Implement Continual Improvement D) Each stage should be carried out once in the order Plan-Do-Check-Act
 
Answer & Explanation Answer: D) Each stage should be carried out once in the order Plan-Do-Check-Act

Explanation:
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Filed Under: ITIL Certification

1 11222
Q:

Which of the following is NOT an objective of service transition ?

A) To plan and manage the capacity and resource requirements to manage a release B) To provide quality knowledge and information about services and service assets
C) To provide training and certification in project management D) To ensure that a service can be operated, managed and supported
 
Answer & Explanation Answer: C) To provide training and certification in project management

Explanation:
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7 11011
Q:

What layer in the TCP/IP stack is equivalent to the Transport layer of the OSI model?

A) Application B) Host-to-Host
C) Internet D) Network Access
 
Answer & Explanation Answer: B) Host-to-Host

Explanation:

The four layers of the TCP/IP stack (also called the DoD model) are Application/process, Host-to-Host, Internet, and Network Access. The Host-to-Host layer is equivalent to the Transport layer of the OSI model.

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Filed Under: CCNA

4 10999
Q:

Acknowledgments, sequencing , and flow control are characteristics  of which OSI layer?

A) Layer 2 B) Layer 3
C) Layer 4 D) Lawer 7
 
Answer & Explanation Answer: C) Layer 4

Explanation:

A reliable Transport layer connection uses acknowledgments to make sure all data is transmitted and received reliably. A reliable connection is defined by a virtual circuit that uses acknowledgments, sequencing, and flow control, which are characteristics of the transport layer.

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Filed Under: CCNA

1 10901
Q:

How many joining conditions are required to join 4 tables in SQL?

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: C) 3

Explanation:

To join 'n' tables 'n-1' conditions should be satisfied.

So to join 4 tables 3 conditions should be satisfied.

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5 10883
Q:

Why are CPM, GERT, and PERT not considered sufficient to create a project schedule?

A) All three are tools and techniques of schedule development, not the actual schedule B) As mathemetical analysis tools, they simply provide the dates that are posible, and do not consider resource pool limitations
C) They are sufficient. Each calculates early and late start and finish dates for each activity D) They are Monte Carlo techniques used to provide what-if analysis for adverse external factors on a project
 
Answer & Explanation Answer: B) As mathemetical analysis tools, they simply provide the dates that are posible, and do not consider resource pool limitations

Explanation:

Answer A is tempting because it is true by definition, but Answer B is correct because it properly answers the question, in that these techniques do not take into account resource pool constraints. Answer C is incorrect because it provides possible early and late start and finish dates, but not the actual schedules. Answer D is incorrect because none of the the three are simulation techniques. 

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Filed Under: PMP Certification

5 10735