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Q:

If a hub has three computers connected to it, how many broadcast and collision domains is the hub 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: D) One broadcast and one collision

Explanation:

If a hub has three computers connected to it, one broadcast and one collision domain is created

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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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Q:

When a station sends a transmission to the MAC address ff : ff : ff : ff : ff : ff, what type of transmission is it?

A) Unicast B) Multicast
C) Anycast D) Broadcast
 
Answer & Explanation Answer: D) Broadcast

Explanation:

A transmission to the MAC address ff : ff : ff : ff : ff : ff is a broadcast transmission to all stations.

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Q:

A receiving host has failed to receive all of the segments that it should acknowledge. What can the host do to improve the reliability of this communication session?

A) Send a different source port number B) Restart the virtual circuit
C) Decrease the sequence number D) Decrease the window size
 
Answer & Explanation Answer: D) Decrease the window size

Explanation:

A receiving host can control the transmitter by using flow control ( TCP uses windowing by default). By decreasing the window size, the receiving host can slow down the transmitting host so the receiving host does  not overflow its buffers.

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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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Q:

Project Procurement Management - Processes

Describe the Inputs, Tools and Techniques , Outputs included in the Contract Administration?

Answer

I. Inputs



  • Contract

  • Contract management plan

  • Selected sellers

  • Performance reports

  • Approved change requests

  • Work performance information


II. Tools and Techniques



  • Contract change control system

  • Buyer-conducted performance review

  • Inspections and audits

  • Performance reporting

  • Payment system

  • Claims administration

  • Records management system

  • Information technology


III. Outputs



  • Contract documentation 

  • Requested changes

  • Recommended corrective actions

  • Organizational process assets (updates)

  • Project management plan (updates)


                 - Procurement management plan


                 - Contract management plan

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Q:

Project Procurement Management - Processes

Describe the Inputs, Tools and Techniques , Outputs included in the Request Seller Responses?

Answer

I. Inputs



  • Organizational process assets

  • Procurement management plan

  • Procurement documents


II. Tools and Techniques



  • Bidder conferences

  • Advertising

  • Develop qualified sellers list


III. Outputs



  • Qualified sellers list

  • Procurement document package

  • Proposals

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Q:

Project Communications Management - Processes

Describe the Inputs, Tools and Techniques , Outputs included in the Manage stakeholders?

Answer

I. Inputs



  • Communications management plan 

  • Organizational process assets


II. Tools and Techniques



  • Communications methods

  • Issue logs


III. Outputs



  • Resolved issues

  • Approved change requests

  • Approved corrective actions 

  • Organizational process assets (updates)

  • Project management plan (updates)

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