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Q:

At which layer is routing implemented , enabling connections and path selection between two end systems?

Answer

The Network layer provides routing through an internetwork and logical addressing.

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Subject: CCNA

Q:

Which layer combines bits into bytes and bytes into frames, uses MAC addressing , and provides error detection?

Answer

The Data Link layer is responsible for the framing of data packets.

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Subject: CCNA

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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Filed Under: CCNA

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:

Which layer of the OSI model offers three different modes of communication : Simplex, half duplex, and full duplex?

A) Presentation B) Transport
C) Application D) Session
 
Answer & Explanation Answer: D) Session

Explanation:

The Session layer of the OSI model offers three different modes of communication : Simplex, half duplex, and full duplex.

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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 Closure?

Answer

I. Inputs



  • Procurement management plan

  • Contract management plan

  • Contract documentation

  • Contract closure procedure


II. Tools and Techniques



  • Procurement audits

  • Records management system


III. Outputs



  • Closed contracts

  • Organizational process assets (updates)

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Subject: PMP Certification

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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Subject: PMP Certification