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2021 Jan JK0-019 free question
Q241. In order for computers with private IP addresses to access the public Internet, which of the following must the router perform?
A. NAT
B. BGP
C. DHCP
D. APIPA
Answer: A
Q242. A technician temporarily needs an additional network connection in their office to test a new workstation. Which of the following is the BEST solution to add a temporary network connection?
A. Install a small network switch
B. Use port mirroring on the switch
C. Split the pairs of the existing jack
D. Install a CSU/DSU
Answer: A
Q243. Which of the following is an invalid subnet mask?
A. 255.0.0.0
B. 255.256.255.0
C. 255.255.255.255
D. 255.255.00
Answer: B
Q244. Joe, a technician, is configuring a wireless access point. Which of the following channels should he use if the LEAST interference potential is desired?
A. 1, 6, 11
B. 2, 5, 10
C. 3, 7, 10
D. 7, 8, 9
Answer: A
Q245. 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
Update JK0-019 free exam questions:
Q246. Joe, a company executive, has noticed that a wireless network signal from the company's WAP can be seen in the company's parking lot. Joe is very worried that this is a potential security threat. Which of the following can be done to eliminate this threat?
A. Implement WEP encryption
B. Decrease signal strength
C. Change wireless channels
D. Rotate the SSID daily
Answer: B
Q247. Which of the following should Joe, a technician, implement to provide high bandwidth to a VoIP application?
A. Caching engines
B. Fault tolerance
C. Load balancing
D. High availability
Answer: C
Q248. Which of the following terms correctly defines the event in which multiple dynamic routers agree on the state of the network?
A. Convergence
B. Spanning tree
C. Port mirroring
D. Link state
Answer: A
Q249. Which of the following should be changed to secure access to a WAPs configuration management interface?
A. SSID
B. WPA2
C. DHCP
D. Password
Answer: D
Q250. Which of the following is a secure method of copying information over a public network?
A. SCP
B. SMTP
C. SNMP
D. TFTP
Answer: A