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2021 Nov JK0-019 exam

Q71. Which of the following represents the physical address of a network access card? 

A. FF01:D2:C4:87::11 

B. 00-30-48-83-9B-C8 

C. 08-9D-35-22-L2-34-FF-21 

D. 2D1A:C3:0:1C3B:2AD:FF:FEBE:9D3A 

Answer: B 


Q72. Blocking a known malicious web address by using the ACL on the firewall is an example of which of the following? 

A. IP filtering 

B. Application filtering 

C. MAC filtering 

D. Port filtering 

Answer: A 


Q73. Which of the following routing protocols runs over UDP and determines path based upon distance vectors? 

A. RIP 

B. DSI 

C. BGP 

D. ISIS 

Answer: A 


Q74. A technician is reporting wireless transmission speeds of 300Mbps. Which of the following wireless standards is being used? 

A. 802.11a 

B. 802.11b 

C. 802.11g 

D. 802.11n 

Answer: D 


Q75. A company has decided to increase wireless infrastructure security by moving from WEP encryption to WPA2. Technicians change each WAP to the new encryption standard and users are given the new passwords. Many users are able to reconnect using the new authentication, but several users report an inability to reconnect. Which of the following is the MOST likely cause of the problem? 

A. The users who cannot connect are using older NICs without WPA2 support. 

B. The users who cannot connect are in areas without wireless coverage. 

C. The users who cannot connect have not been placed in the correct VLAN. 

D. The users who cannot connect have not specified the correct signal strength 

Answer: A 


Rebirth JK0-019 training:

Q76. Teachers and students at a school currently share the same bandwidth. The Internet performance for the teachers in the classroom is becoming extremely slow. Which of the following is the BEST method to mitigate the issue? 

A. Increased uptime 

B. Caching engines 

C. Traffic shaping 

D. Load balancing 

Answer: C 


Q77. Joe, a customer, shares a building with several other tenants. He reports that an unencrypted wireless network has been getting slower while his internet traffic has steadily been increasing. Which of the following should be configured to resolve this problem? 

A. VLAN 

B. MTU 

C. WPA 

D. SSID 

Answer: C 


Q78. Which of the following VPN methods is BEST used for connecting a remote office to the main company office? 

A. WEP-to-WPA 

B. RDP-to-RAS 

C. Client-to-site 

D. Site-to-site 

Answer: D 


Q79. The helpdesk is receiving calls about the corporate web server being down. Which of the following should be taken NEXT after verifying that the server is unreachable? 

A. Escalate the call to a technician 

B. Document any changes in the web server configuration. 

C. Implement and test a solution. 

D. Continuously ping the server until a ping response is obtained 

Answer: A 


Q80. Which of the following is the MOST secure method to enable remote users to access a company's internal network resources? 

A. VPN concentrator 

B. Network-based firewall 

C. DMZ 

D. Stateful firewall 

Answer: A