Certification Questions

Q:

Routers operate at layer _____. LAN switches operate at layer ______. Ethernet hubs operate at layer _____. Word processing operates at layer _______.

A) 3, 3, 1, 7 B) 3, 2, 1, none
C) 3, 2, 1, 7 D) 3, 3, 2, none
 
Answer & Explanation Answer: B) 3, 2, 1, none

Explanation:

Routers operate at layer 3. LAN switches operate at layer 2. Ethernet hubs operate at layer 1. Word processing applications communicate to the Application layer interface, but do not operate at layer 7, so the answer would be none.

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Filed Under: CCNA - CISCO Certification

4 8951
Q:

An accepted deadline for a project approaches. However, the project manager realizes only 75% percent of the work has been completed. The project manager then issues a change request. What should the change request authorize?

A) Additional resources using the contingency fund B) Escalation approval to use contingency funding
C) Team overtime to meet schedule D) Corrective action based on causes
 
Answer & Explanation Answer: D) Corrective action based on causes

Explanation:
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Filed Under: PMP Certification

4 8949
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 8692
Q:

Ambiguous jurisdiction is more common in a functional or weak matrix organization than a strong matrix or projectized organization. Why?

A) Projectized organizations tend to be large in size B) Conflict between a functional manager and a project manager is more common in a functional or weak matrix
C) Legal issues are more frequent in a functional or weak matrix organization D) Projectized and strong matrix organizations are the best companies for a project manager to work for due to less ambiguity in scope development.
 
Answer & Explanation Answer: B) Conflict between a functional manager and a project manager is more common in a functional or weak matrix

Explanation:

Answer A is incorect because it is not a correct statement and has nothing to do with ambiguous jurisdiction. Answer C is incorrect because ambiguous jurisdiction is not related to legal issues at a company. Answer D is incorrect because the statement is incorrect and is not related to ambiguous jurisdiction.

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Filed Under: PMP Certification

1 8325
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 - CISCO Certification

1 7692
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 - CISCO Certification

4 7679
Q:

You want to implement a mechanism that automates the IP configuration, including IP address, subnet mask, default gateway, and DNS information. Which protocol will you use to accomplish this?

A) SMTP B) SNMP
C) DHCP D) ARP
 
Answer & Explanation Answer: C) DHCP

Explanation:

Dynamic Host Configuration Protocol (DHCP) is used to provide IP information to hosts on your network. DHCP can provide a lot of information, but the most common is Ip address, subnet mask, default gateway, and DNS information.

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Filed Under: CCNA - CISCO Certification

2 7660
Q:

If you use either Telnet or FTP, what layer are you using to generate the data?

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

Explanation:

Both FTP and Telnet use TCP at the Transport layer; however, they both are Application layer protocols, so the Application layer is the best answer for this question.

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Filed Under: CCNA - CISCO Certification

1 7639