Certification Questions

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

13 29506
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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21 20772
Q:

What is the best definition of an Incident Model?

A) A type of Incident involving a standard (or model) type of Configuration Item (CI) B) A set of pre-defined steps to be followed when dealing with a known type of Incident
C) The template used to define the Incident logging form used to report Incidents D) An Incident that is easy to solve
 
Answer & Explanation Answer: B) A set of pre-defined steps to be followed when dealing with a known type of Incident

Explanation:
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Filed Under: ITIL Certification

6 17407
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 15124
Q:

If a switch has three computers connected to it, with no VLANs present, how many broadcast and collision domains is the switch creating?

A) Three broadcast and one collision B) Three broadcast and three collision
C) one broadcast and three collision D) One broadcast and one collision
 
Answer & Explanation Answer: C) one broadcast and three collision

Explanation:

If a switch has three computersconnected to it, with no VLANs present , one broadcast and three collision domains are created.

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Filed Under: CCNA - CISCO Certification

9 15005
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 14330
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

15 13462
Q:

What is the purpose of flow control?

A) To ensure that data is retransmitted if an acknowledgment is not received B) To reassemble segments in the correct order at the destination device
C) To provide a means for the receiver to govern the amount of data sent by the sender D) To regulate the size of each segment
 
Answer & Explanation Answer: C) To provide a means for the receiver to govern the amount of data sent by the sender

Explanation:

Flow control allows the receiving device to control  the transmitter so the receiving device's buffer does not overflow.

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Filed Under: CCNA - CISCO Certification

3 13280