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2021 Jan what is jk0-019:
Q171. A new department is formed and a new section of the building is being built out for them All 50 new employees will need access to the wireless network. Which of the following should Joe, a technician, complete to allow these new employees access to the wireless network?
A. Frequency settings should be changed
B. Additional WAPs should be installed
C. Channels should be changed
D. VLANs should be added
Answer: B
Q172. Which of the following describes 1Gigabit Ethernet?
A. 10GBaseER
B. 10Base2
C. 1000BaseT
D. 100Base5
Answer: C
Q173. Which of the following improves wireless performance by allowing only one wireless transmission on the network at a time?
A. CSMA/CA
B. CSMA/CD
C. Wireless encryption
D. Wireless bonding
Answer: A
Q174. 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
Answer: D
Q175. Which of the following can be an STP cable?
A. RG-6
B. CAT5e
C. Fiber
D. RG-59
Answer: B
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Q176. CAT6 Ethernet cabling has a rated maximum transmission capability of:
A. 10Mbps
B. 100Mbps
C. 20,000Mbps
D. 10,000Mbps
Answer: D
Q177. A router that takes the workstations internal IP address and changes it to another IP address when it sends the data outside of the network is and example of which of the following?
A. NAT
B. IDS
C. NMAP
D. DMZ
Answer: A
Q178. A company needs strong wireless security enabled for minimal cost. Which of the following security measures is the BEST to use?
A. WEP
B. Port filtering
C. WPA
D. Longer SSID broadcast intervals
Answer: C
Q179. Which of the following layers of the OSI model is above the Session layer?
A. Data link
B. Presentation
C. Physical
D. Transport
Answer: B
Q180. A technician needs to add network capacity. However, when plugging a second switch into the first switch, there is no link light. Which of the following is the cause of this situation?
A. The switches are not stackable.
B. The cable was not wired using 568A.
C. The cable needs to be a crossover cable
D. The switches have IGMP snooping enabled
Answer: C