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2021 Dec JK0-019 test questions

Q121. Which of the following would Joe, a technician, configure to modify the time a device will hold an IP address provided through DHCP? 

A. DNS suffixes 

B. Leases 

C. Static IP addressing 

D. Reservations 

Answer: B 


Q122. Joe, a network technician, blocks access to ports 25,110, and 143 on the firewall. Which of the following application services will be blocked due to this? 

A. Email sending and receiving 

B. Domain Name Service 

C. FTP access to external servers 

D. Remote desktop access 

Answer: A 


Q123. Administrators are performing a war drive around their company's complex. Which of the following are they attempting to detect? 

A. Worms 

B. Rogue access points 

C. DDoS attacks 

D. Bluesnarfing attacks 

Answer: B 


Q124. A section of the building has been having intermittent connectivity problems lately. An action plan and solution has been created. Which of the following steps would an administrator perform NEXT? 

A. Document the solution and process. 

B. Establish the most probable cause. 

C. Implement and test the solution. 

D. Identify additional symptoms and problems 

Answer: C 


Q125. Which of the following uses eight groups of characters for addressing? 

A. MAC 

B. IPv4 

C. IPv6 

D. DHCP 

Answer: C 


Up to the minute JK0-019 real exam:

Q126. An administrator has added a new access point to the network to provide additional coverage. A heat-map survey shows coverage now extends beyond company property and is interfering with other wireless networks in the area. How should the administrator modify the new installation to stop the interference? 

A. Turn down the transmission strength of the access point. 

B. Replace the antenna with a smaller one. 

C. Change the wireless password to a more complex one. 

D. Change the SSID of the access point 

Answer: A 


Q127. Which of the following holds multiple connections and is usually maintained by the telephone company? 

A. Demarc 

B. IDF 

C. MDF 

D. 110 block 

Answer: A 


Q128. Which of the following protocols is used to disable switch ports automatically to prevent switching loops? 

A. RIP 

B. 0S: F 

C. STP 

D. EGP 

Answer: C 


Q129. A company has only three laptops that connect to their wireless network. The company is currently using WEP encryption on their wireless network. They have noticed unauthorized connections on their WAP and want to secure their wireless connection to prevent this. Which of the following security measures would BEST secure their wireless network? (Select TWO). 

A. Change the encryption method to WPA 

B. Limit the DHCP scope to only have three addresses total 

C. Enable the SSID broadcast 

D. Enable and configure MAC filtering 

E. Change the broadcast channel to a less commonly used channel 

Answer: AD 


Q130. When installing a wireless network in a large area, which of the following is the FIRST thing that should be considered when trying to get the MOST coverage? 

A. SSID naming 

B. Device placement 

C. Encryption methods 

D. Channel selection 

Answer: B