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2021 Oct JK0-019 test question
Q201. 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
Q202. Which of the following OSI model layers is used for logical addressing?
A. Physical
B. Transport
C. Network
D. Data link
Answer: C
Q203. 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
Q204. Which of the following is the full range of address block 192.16876.0/23?
A. 192.168.76.0-192.168.77.255
B. 192.168.76.0-192.168.76.255
C. 192.168.76.0-192.168.76.23
D. 192.168.76.0-192.168.78 0
Answer: A
Q205. 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
Renewal JK0-019 exam answers:
Q206. Which of the following would be used to test out the security of a specific network by allowing it to receive security attacks?
A. Honeynet
B. Honeypot
C. Vulnerability scanner
D. Network based IDS
Answer: A
Q207. Joe, a network technician, blocks access to ports 25,110, and 143 on the firewall. Which of the following application services will be blocked due to this?
A. Email sending and receiving
B. Domain Name Service
C. FTP access to external servers
D. Remote desktop access
Answer: A
Q208. Kurt, a network technician, is setting up a router and wants to ensure the fastest convergence of the routing information. Which of the following protocols would be BEST for him to use?
A. RIP
B. VLSM
C. OSPF
D. STP
Answer: C
Q209. A user connecting a laptop to a wall jack is prompted for user credentials before being granted access to the network. Which of the following is MOST likely implemented on the switch?
A. MAC filtering
B. PoE
C. IP filtering
D. 802.1X
Answer: D
Q210. 1000BaseT has a MAXIMUM run distance of:
A. 25 meters (82 feet)
B. 100 meters (328 feet)
C. 500 meters (1640 feet)
D. 1000 meters (3280 feet)
Answer: B