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2021 Jan jk0-019 exam:

Q371. Karen, a network technician, is troubleshooting a problem and has just established a plan of action to resolve the problem. Which of the following is the NEXT step in the troubleshooting methodology? 

A. Verify full system functionality and if applicable implement preventative measures. 

B. Implement the solution or escalate as necessary. 

C. Document findings, actions, and outcomes. 

D. Establish a theory of probable cause (e.g. question the obvious). 

Answer: B 


Q372. Which of the following is the third layer of the OSI model? 

A. Transport 

B. Application 

C. Data Link 

D. Network 

Answer: D 


Q373. A zone transfer occurs over which of the following ports? 

A. TCP 53 

B. UDP67 

C. UDP123 

D. TCP 25 

Answer: A 


Renewal jk0-019 vs n10-005:

Q374. Which of the following network cable types requires grounding? 

A. STP 

B. UTP 

C. Fiber 

D. Serial 

Answer: A 


Q375. Kurt, the network technician, is troubleshooting a network issue by implementing a new security device. After installing and configuring the device, which of the following steps should he take NEXT? 

A. Verify full system functionality 

B. Identify the main problem and question the user 

C. Document their findings, actions, and outcomes 

D. Escalate the issue to upper management. 

Answer: A 


Q376. Which of the following technologies was designed to provide the FASTEST data rates over analog phone lines? 

A. RADSL 

B. SONET 

C. ADSL 

D. MPLS 

Answer: C 


Q377. Kurt, a user, is able to connect to a distant wireless network then loses connection. This is an ongoing problem for Kurt and the only wireless network around. Which of the following is MOST likely causing this problem? 

A. Signal strength 

B. Encryption type 

C. Incorrect SSID 

D. Incorrect channel 

Answer: A