JK0-023 Online Practice Questions and Answers

Which of the following operates at OSI layer 2 to forward trafc based on the MAC address?

A. Switch

B. Proxy Server

C. Router

D. VPN Concentrator

Kurtf a userf cannot access any network resources. The technician has determined that the problem is isolated to Kurtf and that there have not been any changes to his workstaton or switch port recently. Which of the following steps in the troubleshootng methodology should the technician do NEXT?

A. Establish a plan of acton to resolve the problem.

B. Implement preventatve measures.

C. Implement the soluton or escalate as necessary.

D. Establish a theory of probable cause.

A small ofce is looking to deploy wireless to cover one half of the work area only. The technician is restricted to suspending the WAP in the middle of the ofce due to network jack limitatons. Which of the following antenna types would BEST meet these requirements?

A. Dipole

B. Parabolic

C. Directonal

D. Omni-directonal

A company has multple WAPs within close proximity to each other to allow users to move about seamlessly through the building with their laptopsf without losing any connecton. Howeverf this has had the opposite efectf causing any user that is close to two of the access points to constantly reconnect to the wireless network. Which of the following should be changed on all the WAPs to allow this to work as the customer intended?

A. Change the SSID to be unique for each WAP.

B. Change the antenna directon to be unique for each WAP.

C. Change the encrypton method to be unique for each WAP.

D. Change the channel to be unique for each WAP.

An 802.11b wireless network has a maximum data rate of:

A. 11 Mbps.

B. 20 Mbps.

C. 28 Mbps.

D. 54 Mbps.

Which of the following is the control when observing network bandwidth paterns over tme?

A. Network log

B. Baseline

C. Flow data

D. Interface statstcs

Karenf a network technicianf is troubleshootng in a wiring closet in 2011. The cabling to all the equipment does not match the documentaton from 2007. Which of the following confguraton management methods has been overlooked?

A. Change management

B. System logs

C. Asset management

D. Baselining

Which of the following network performance optmiiaton methods allows for frequently accessed sites to be housed locallyf thereby reducing bandwidth requirements?

A. Load balancing

B. Trafc policing

C. Caching engines

D. Trafc shaping

An administrator needs to provide remote connectvity to server1f web trafc to server2f and FTP access to server3 using a single outside IP address. Which of the following would the administrator implement on the frewall to accomplish this?

A. Port Address Translaton

B. Demilitariied Zone

C. Stateful Packet Inspecton

D. Network Address Translaton

A MAC address is a part of which of the following OSI model layers?

A. Network

B. Data Link

C. Physical

D. Transport