Which of the following is the default subnet mask for a Class B address?
A. 255.0.0.0Which of the following is used to provide hot standby capabilities using paired routers?
A. CARPA technician needs to add ten additional Ethernet ports to a small office network. A new basic function switch is added. Hosts connected to the new switch are unable to see any computers on the network other than those connected to the new switch. Which of the following should the technician perform to ensure the hosts on the new switch can communicate with the existing network?
A. Replace the new switch with a hub to ensure Layer1 connectivity on the new network segment.Company A has leased a second office located two floors below its main office. Company B is located on the floor in between Company A's office and is performing research on electromagnetic fields. The core switch at the MDF is connected to the switch at the IDF with a 131ft (40m) Cat 6 UTP cable. Both gigabit switches support Cat 7a and have SFP ports available. Company A's second office has reported intermittent issues with slow and sometimes dropped connections to the main office network. Which of the following steps will MOST likely resolve the connectivity issues? (Choose two.)
A. Connect the switches using an 802.11ac bridge.An administrator is working on an email migration project and needs to verify if the new MX records have propagated across the public DNS servers. Which of the following is the MOST appropriate software tool for the administrator to use?
A. iptablesZach, a technician, wants to test a laptop's NIC for functionality but has no other networking equipment to attach it to. Which of the following would allow him to test basic functionality of the NIC?
A. Loopback plugA network administrator needs to transmit traffic to geographically diverse sites to improve performance. Which of the following devices would BEST direct traffic to the remote sites?
A. HubA company's web-based application has a database that is set up for high availability in case of a failure. Which of the following is necessary to achieve this type of setup?
A. A virtual IP pointing to the active DBAnn, a new employees within a department, cannot print to any of the printers in the department or access any of the resources that other can. However, she can access the internet. The network engineer has confirmed that Ann's has been set up same as the others. There are no access lists restricting Ann's access. Which of the following cloud be the issue for this lack of access?
A. Duplex/speed mismatchA small company has decided to use a single virtual appliance to filter spam as well as reverse proxy and filter traffic to its internal web server. Which of the following has the company MOST likely deployed?
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