[Sep 2021] jk0-019 dump

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2021 Sep jk0-019 dump:

Q361. Which of the following OSI model layers is used for logical addressing? 

A. Physical 

B. Transport 

C. Network 

D. Data link 

Answer: C 

Q362. Which of the following is an example of a DHCP failover mechanism? 


B. Inactive lease 

C. Reservations 

D. Active lease 

Answer: A 

Q363. Which of the following protocols is commonly used by ping? 





Answer: B 

Q364. Which of the following is the port number used by HTTP? 

A. 21 

B. 80 

C. 443 

D. 3389 

Answer: B 

Q365. An administrator attempts to open a web page and sees the following error: 'Error 404: Page not found'. The administrator then uses the ping command and finds that the default gateway cannot be pinged. At which of the following layers does the problem MOST likely reside? 

A. Layer 1 

B. Layer 4 

C. Layer 5 

D. Layer 7 

Answer: A 

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Q366. Which of the following tools would allow an administrator to push out a software update to all switches on the network? 

A. Network management 

B. Protocol analyzer 

C. Network monitoring 

D. System diagnostic 

Answer: A 

Q367. Which of the following wireless technologies can support the GREATEST distance on either 2.4GHz or 5GHz frequencies? 

A. 802.11a 

B. 802.11b 

C. 802.11g 

D. 802.11n 

Answer: D 

Q368. Which of the following protocols is Karen, a user, utilizing if no handshake or data reliability are required? 





Answer: D 

Q369. Which of the following is the MAXIMUM distance a single 1000BaseT segment can cover? 

A. 100 kilometers (62 miles) 

B. 10 kilometers (6 miles) 

C. 1000 meters (3281 feet) 

D. 100 meters (328 feet) 

Answer: D 

Q370. Which of the following services can an administrator use to reduce latency and prioritize the flow of data? 

A. Fault tolerance 


C. Qos 

D. Load balancing 

Answer: C 

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