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2021 Jan JK0-019 exam prep

Q141. Which of the following would Karen, a technician, use in voice over IP communications? 

A. SNTP 

B. SCP 

C. SMTP 

D. SIP 

Answer: D 


Q142. Which of the following TCP/IP and OSI model layers retransmits a TCP packet if it is not received successfully at its destination? 

A. The transport OSI model layer and the transport TCP/IP model layer 

B. The transport OSI model layer and the Internet TCP/IP model layer 

C. The network OSI model layer and the transport TCP/IP model layer 

D. The network OSI model layer and the Internet TCP/IP model layer 

Answer: A 


Q143. A Stateful firewall is MOST useful in protecting against which of the following network scans? 

A. PING 

B. UDP 

C. Xmas 

D. ACK 

Answer: C 


Q144. Which TCP/IP model layer does the OSI model layer named 'session' respond to? 

A. Application 

B. Presentation 

C. Internet 

D. Transport 

Answer: B 


Q145. Which of the following should be used to ensure that all packets are received by every connected device? 

A. Hub 

B. Router 

C. Switch 

D. Firewall 

Answer: A 


Regenerate JK0-019 practice test:

Q146. A user receives an email slating that their account was compromised and there is a need to verify account credentials by submitting the correct information on a website. Which of the following security threats is occurring? 

A. Phishing 

B. Smurf attack 

C. Denial of service 

D. Man-in-the-middle 

Answer: A 


Q147. Which of the following commands provides similar information about the current configuration of active local Ethernet adapters? (Select TWO). 

A. traceroute 

B. ipconfig 

C. ifconfig 

D. route 

E. hostname 

Answer: BC 


Q148. Which of the following allows a WAP to be installed in a location where there are no power outlets available? 

A. Port authentication 

B. PoE 

C. PPTP 

D. Trunking 

Answer: B 


Q149. Which of the following tools are BEST used to cut away the outside covering of a CAT5e cable? 

A. Stripper 

B. Punch down tool 

C. Butt set 

D. Snips 

Answer: A 


Q150. An administrator is having a hard time adding a new switch to the network. After verifying that all the ports are configured correctly on each switch, which of the following should the administrator verily NEXT? 

A. Straight-through cable is used to connect both switches 

B. Loopback plug is connected 

C. Crossover cable is used to connect both switches 

D. Cable is a rollover cable 

Answer: C