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2016 Jun JK0-019 Study Guide Questions:

Q421. Which of the following security threats relies primarily on user deception and misinformation? 

A. Rogue access points 

B. DoS attacks 

C. Man-in-the-middle attacks 

D. Phishing 

Answer: D 


Q422. A technician wants to test the DNS server ns.company.com to ensure it is able to resolve the company web address. Which of the following command sequences will test DNS functionality? 

A. nslookup set type=mx www.company.com 

B. nslookup Set type=ns @ns.company.com www 

C. nslookup domain ns.company.com lookup www 

D. nslookup server ns.company.com www.company.com 

Answer: D 


Q423. Which of the following is an example of a MAC address? 

A. 10.0.10.1 

B. 1A-23-F9-CD-06-9L 

C. 1A-23-F9-CD-06-9B 

D. 1A-23-F9-CD-06-9B-23-5C 

Answer: D


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Q424. Karen, a network administrator, needs to add an additional connection to a room. She adds a new Ethernet switch and must connect it to an existing switch. Which cable type should Karen use to connect the two switches? 

A. CAT3 cable 

B. Serial cable 

C. Crossover cable 

D. Rollover cable 

Answer: C 


Q425. Joe, a user, reports that his PC is the only one that does not have network connectivity. All the wiring has been tested properly and the problem still exists. Joe is getting an APIPA address. 

Which of the following is the MOST likely cause? 

A. Crossover cable is being used 

B. Switch was powered off 

C. PoE is disabled on the port 

D. Port on the switch is disabled 

Answer: D 


Q426. Which of the following is a form of encrypting packets for safe, secure data transmission within a network? 

A. RAS 

B. PPTP 

C. IPSec 

D. ICA 

Answer: C 


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Q427. Which of the following technologies has different upload and download speeds? 

A. OC12 

B. SDSL 

C. OC3 

D. ADSL 

Answer: D 


Q428. Karen, a technician, needs to test if domain name resolution is functioning properly. Which of the following software tools would she use to accomplish this? (Select TWO). 

A. arp 

B. dig 

C. route 

D. nslookup 

E. netstat 

Answer: BD 


Q429. Which of the following commands would allow a computer to acquire an IP address? 

A. ipconfig/release 

B. ipconfig/renew 

C. ipconfig/all 

D. ipconfig/help 

Answer: B 


Q430. Karen, an administrator, finds a phone line but does not know where the line goes or if it is active. Which of the following can be used to test if it is active? 

A. Butt set 

B. Punch down tool 

C. Cable tester 

D. Cable stripper 

Answer: A 



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