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2021 Nov JK0-019 practice

Q351. Which of the following ports should be allowed through a firewall to allow DNS resolution to occur to an outside DNS server? 

A. 20 

B. 53 

C. 80 

D. 3389 

Answer: B 


Q352. An administrator receives a contract for a server install at a new building. Which of the following should be completed after installing the server? 

A. Log the administrator password used 

B. Test the air temperature 

C. Update the network diagram 

D. Review the evacuation procedures 

Answer: C 


Q353. Which of the following is the broadcast address for a network defined as 192.168.0.0/24? 

A. 192.168.0.255 

B. 192.168.0.1 

C. 192.168.0.0 

D. 192.168.0.253 

Answer: A 


Q354. CAT6 Ethernet cabling has a rated maximum transmission capability of: 

A. 10Mbps 

B. 100Mbps 

C. 20,000Mbps 

D. 10,000Mbps 

Answer: D 


Q355. A small office in which all workstations are using an ISP provided IP range has noticed a consistent decrease in network traffic speed. The decrease does not occur when the gateway to the ISP is disconnected. Which of the following should the administrator implement? 

A. Multicast addressing 

B. Load balancing 

C. Address translation 

D. DHCP 

Answer: C 


Renovate JK0-019 exam:

Q356. Which of the following exterior routing protocols uses an algorithm to determine the quickest route to a destination? 

A. RIP 

B. OSPF 

C. BGP 

D. RIPv2 

Answer: C 


Q357. Which of the following utilities would be used to display a NIC's cache of MAC addresses? 

A. arp 

B. nslookup 

C. dig 

D. netstat 

Answer: A 


Q358. Which of the following WAN technologies has the GREATEST latency and is not recommended for VoIP? 

A. ISDN 

B. DSL 

C. Satellite 

D. Cable 

Answer: C 


Q359. Which of the following would be used to lock all of the primary communication equipment of a building, including its demarcation point? 

A. MTR 

B. MDF 

C. Smartjack 

D. IDF 

Answer: B 


Q360. In the 2.4GHz range, which of the following channel combinations are non-overlapping? 

A. 1, 6, 11 

B. 2, 7, 10 

C. 2, 8, 13 

D. 3, 6, 9 

Answer: A