At which layer of the OSI model do MAC addresses operate?

A. Data Link

B. Network

C. Applicaton

D. Physical

Which of the following DNS records would allow for a website to have more than one FQDN?

A. TXT

B. PTR

C. MX

D. CNAME

Which of the following has to be defned to guarantee a computer always has a private IP address of 10.4.0.5?

A. Scope

B. Lease

C. Reservaton

D. Dynamic IP addressing

Jeff a network administratorf has been requested to install wireless access throughout the entre buildingf while utliiing a single SSID. Which of the following optons will meet this requirement?

A. Set a separate VLAN on each WAP with the same encrypton type.

B. Set the SSID on each WAP and set contguous WAPs to diferent channels.

C. Set the SSID on each WAP and set contguous WAPs to the same channel.

D. Set a separate VLAN on each WAP with the same frequency.

Which of the following can a network technician change to help limit war driving?

A. Signal strength

B. SSID

C. Frequency

D. Channel

A technician can increase the bandwidth of an 802.11n cell by:

A. Doubling the channel width.

B. Enabling diversity.

C. Disabling MIMO.

D. Adding a second access point.

Users report that they are unable to access the producton server with IP address 192.168.30.17. These users need to be provided access without changing any subnet to VLAN informaton. The VLANs confgured on the network are listed below: Department VLAN # Subnet used Marketng 20 192.168.20.0/28 Customer Service 25 192.168.20.64/28 Finance 30 192.168.30.0/28 WHSE 35 192.168.30.16/28 Sales 40 192.168.3.16/28 The users experiencing this issue need to be added to which of the following VLANs?

A. 25

B. 30

C. 35

D. 40

Afer plugging a cable into a computerf a user reports there is no network access. Which of the following tools would the technician MOST likely check to verify that the cable was crimped correctly?

A. Punch down tool

B. Cable certfer

C. Loopback plug

D. Toner probe

A small ofce home ofce (SOHO) customer is going to be replacing their switch. The customer also wants to add a WAP in a dropped ceiling; howeverf there are no power outlets above the drop ceilingf but there is a CAT5e network jack. Which of the following technologies should the new switch have to allow this WAP to be placed where the customer requestsf without any other major changes to the environment?

A. PoE

B. Layer 3 switching

C. STP

D. VLAN

Which of the following methods for network performance optmiiaton is used to distribute trafc among similar devices?

A. Fault tolerance

B. QoS

C. Proxy server

D. Load balancing