Certification Questions

Q:

Which class of IP address provides a maximum of only 254 host addresses per network ID?

A) Class A B) Class B
C) Class C D) Class D
 
Answer & Explanation Answer: C) Class C

Explanation:

Class C network address has only 8 bits for defining hosts : 28-2 = 256 - 2 = 254

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22 20888
Q:

What is the subnet for host ID 10.16.3.65/23?

Answer

A/23 is 255.255.254.0. The third octet is a block size of 2.0, 2, 4. The subnet is in the 16.2.0 subnet; the broadcast address is 16.3.255

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22 14426
Q:

The network address of 172.16.0.0/19 provides how many subnets and hosts?

A) 7 subnets, 2046 hosts each B) 7 subnets, 8190 hosts each
C) 8 subnets, 2046 hosts each D) 8 subnets, 8190 hosts each
 
Answer & Explanation Answer: D) 8 subnets, 8190 hosts each

Explanation:

A CIDR address of/19 is 255.255.224.0. This is a Class B address, so that is only 3 subnet bits, but it provides 13 host bits, or 8 subnets, each with 8,190 hosts.

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Filed Under: CCNA - CISCO Certification

17 14046
Q:

 What is the role of the Emergency Change Advisory Board (ECAB)?

A) To assist the Change Manager in ensuring that no urgent changes are made during particularly volatile business periods B) To assist the Change Manager in evaluating emergency changes and to decide whether the change should be approved
C) To assist the Change Manager in speeding up the emergency change process so that no unacceptable delays occur. D) To assist the Change Manager in implementing emergency changes
 
Answer & Explanation Answer: B) To assist the Change Manager in evaluating emergency changes and to decide whether the change should be approved

Explanation:
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Filed Under: ITIL Certification

14 30723
Q:

Convert 10100010111101011001110110001011 2 to dotted decimal.

Answer

Convert to dotted hexadecimal first, and then convert each hexadecimal number pair to decimal.

A2.F5.9D.8B then 162.245.157.139

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14 4050
Q:

 What does Mean Time to Repair (MTTR) mean?

A) Average uptime of a service B) Average downtime of a service
C) Average time between two consecutive incidents D) Average time of the breakdown-free period within a measured period
 
Answer & Explanation Answer: B) Average downtime of a service

Explanation:
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Filed Under: ITIL Certification

13 15290
Q:

A statistical method for identifying which factors may influence specific variables of a product or process under development or in production is called

A) cost benefit analysis. B) sensitivity analysis.
C) cost of quality analysis. D) design of experiments.
 
Answer & Explanation Answer: D) design of experiments.

Explanation:
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Filed Under: PMP Certification

11 9942
Q:

Which of the following BEST describes a Service Desk?

A) A dedicated number of staff handling Incidents and service requests B) A process within Service Operation providing a single point of contact
C) A dedicated number of staff handling service requests D) A dedicated number of staff answering questions from users
 
Answer & Explanation Answer: A) A dedicated number of staff handling Incidents and service requests

Explanation:

A dedicated number of staff handling Incidents and service requests best describes a Service Desk.

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11 11460