The senior CompTIA lecturers and experts test and approve the actual Actualtests CompTIA JK0-019 examining questions, whose answers are practically correct . The actual study supplies are of great value for the candidates. The actual senior CompTIA lecturers and professionals dedicate themselves to helping the actual examinees as much because possible. You will get the examination through if you take the JK0-019 practice tests as a result of its highest accuracy.

2021 Jan JK0-019 latest exam

Q71. Which of the following uses copper wiring? 

A. 10GBaseER 

B. 10GBaseLW 

C. 100BaseFX 

D. 1000BaseT 

Answer: D 


Q72. At which of the following layers does the UDP protocol operate? 

A. Layer 1 

B. Layer4 

C. Layer 6 

D. Layer 7 

Answer: B 


Q73. Which of the following is the name of the routing update process involved when a change occurs in the routing environment? 

A. Supernetting 

B. Dynamic 

C. Subletting 

D. Convergence 

Answer: D 


Q74. Which of the following would help a new administrator quickly determine if a network had a VLAN for its publicly accessible servers? 

A. Baselines 

B. Regulations 

C. Logical network diagrams 

D. Wiring schematics 

Answer: C 


Q75. Multiple users call from the same location saying that they have no network connectivity. The administrator is unable to ping the main switch at that IDF. Which of the following configuration management documents would the administrator MOST likely consult to troubleshoot the issue? 

A. Baseline configuration 

B. Security policy 

C. Performance and transaction logs 

D. Physical network diagram 

Answer: D 


Up to the immediate present JK0-019 practice test:

Q76. At which of the following layers does the TFTP protocol operate? 

A. Layer 1 

B. Layer 4 

C. Layer 5 

D. Layer 7 

Answer: D 


Q77. 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 


Q78. Karen, an administrator, wants to list all the network connections to and from the server. Which of the following commands would MOST likely be used? 

A. traceroute 

B. ping 

C. ipconfig 

D. netstat 

Answer: D 


Q79. Which of the following can be an STP cable? 

A. RG-6 

B. CAT5e 

C. Fiber 

D. RG-59 

Answer: B 


Q80. Which of the following WAN protocols is a circuit switching technology? 

A. ISDN 

B. SONET 

C. Frame Relay 

D. ATM 

Answer: A