A network technician performs a wireless site survey at a company building and identifies that the cafeteria is not covered by a wireless signal. The cafeteria is located in a medium-size, square-shaped room. Which of the following types of WAP antenna should the technician install in the center of the cafeteria to provide the BEST coverage?
A. Unidirectional
B. Parabolic
C. Omnidirectional
D. Yagi
A network technician is planning to update the firmware on a router on the network. The technician has downloaded the file from the vendor's website. Before installing the firmware update, which of the following steps should the technician perform to ensure file integrity?
A. Perform antivirus and anti-malware scans of the file.
B. Perform a hash on the file for comparison with the vendor's hash.
C. Download the file a second time and compare the version numbers.
D. Compare the hash of the file to the previous firmware update.
A technician is downloading an ISO from a vendor's website. To ensure the integrity of the download, which of the following should be verified?
A. File size
B. Vendor URL
C. File hashing
D. Encryption
A network administrator is assigned to run and connect a Cat 6e Ethernet cable between two nodes in a datacenter. Which of the following connector types should the network administrator use to terminate this cable?
A. DB-9
B. RS-232
C. DB-25
D. RJ-45
A network administrator has had difficulty keeping track of IP address assignments on networking devices and clients recently. Which of the following is the BEST technology to aid in this scenario?
A. DNS
B. DHCP
C. IPAM
D. NTP
Users in a school lab are reporting slow connections to the servers and the Internet. Other users in the school have no issues. The lab has 25 computers and is connected with a single 1Gb Ethernet connection on Cat 5e wiring to an unmanaged switch. There are also three spare Cat 5e cable runs, which are not in use. The school wants to double the connection speed between the lab and the servers without running new cables. Which of the following would be the BEST solution?
A. Plug in a second spare cable at each end to double the speed.
B. Replace the switches with ones that utilize port bonding and use the spare cables.
C. Replace the switches with 10Gb switches and utilize the existing cabling.
D. Plug in a second cable and set one port to TX and one port to RX.
A technician is dispatched to replace an access point that has failed. The device is preconfigured with the correct SSID and passphrase. When the user tries to connect to the SSID, the connection fails. Which of the following is the MOST likely cause of the issue?
A. Interference
B. Channel overlap
C. Distance limitations
D. Security type mismatch
A network technician has salvaged several Ethernet cables from a datacenter. The technician attempts to use the cables to connect desktops to the network without success. Which of the following is MOST likely the issue?
A. The cables have an incorrect pin-out.
B. The cables are UTP instead of STP.
C. The cables are Cat 6 instead of Cat 5.
D. The cables are not plenum rated.
A network administrator plans to install network connectivity at a new remote office location. The administrator is concerned about how to troubleshoot network connectivity issues and reconfigure the remote router. The technician should use __________.
A. an SD card with a backup configuration.
B. a TFTP server on the main network for backup configurations.
C. a modem using POTS.
D. a second Ethernet interface for remote access.
Which of the following BEST explains why a network engineer would use a wireless mesh network when connecting sensors to a sensor gateway?
A. It creates various paths to a particular destination.
B. It increases the overall throughput of the links connecting the devices.
C. It provides redundancy if the sensor network experiences broad wireless interference.
D. It allows autonomous communication if the sensor network goes down.
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