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2021 Nov JK0-019 practice

Q281. Which of the following would provide Kurt, a technician, with a performance reference point to refer back to after hardware repair? 

A. Baseline 

B. Network map 

C. Wire scheme 

D. Asset management 

Answer: A 


Q282. A workstation is having connectivity issues when being added to the domain. Which of the following commands would allow the administrator to see the DNS and WINS servers that are currently configured for the workstation? 

A. Ipconfig 

B. Nslookup 

C. Netstat 

D. Nbtstat 

Answer: A 


Q283. Hardware locks, keypads on entry doors, badge readers, and biometric readers are all examples of which of the following security types? 

A. Physical 

B. Logical 

C. Software 

D. Authentication 

Answer: A 


Q284. Kurt, an administrator, receives reports from users in an office that their 802.11g wireless connectivity has been problematic since the installation of the new wireless phone system. At which of the following frequencies are both systems operating at to cause this issue? 

A. 2.4GHz 

B. 900MHz 

C. 1.1GHz 

D. 5GHz 

Answer: A 


Q285. A SONET network typically uses which of the following transmission media? 

A. Single-mode fiber 

B. Multimode fiber 

C. Copper 

D. Wireless 

Answer: A 


Most recent JK0-019 practice question:

Q286. In which of the following wireless standards is MIMO used? 

A. 802.11a 

B. 802.11b 

C. 802.11g 

D. 802.11n 

Answer: D 


Q287. Sandy, a technician, is asked to not allow FTP traffic on a network. Which of the following ports should be blocked on the firewall to achieve this? 

A. 21 

B. 22 

C. 23 

D. 25 

Answer: A 


Q288. A technician at a company providing online, real-time media streaming to the Internet needs a network technology that will reduce bandwidth while delivering high throughput. Which of the following can the technician implement to fit these requirements? 

A. Subnetting 

B. Unicast 

C. Broadcast 

D. Multicast 

Answer: D 


Q289. Which of the following would the telecommunications carrier use to segregate customer traffic over long fiber links? 

A. VLAN 

B. MPLS 

C. VPN 

D. PSTN 

Answer: B 


Q290. Which of the following ports does POP3 services use, by default? 

A. 25 

B. 110 

C. 143 

D. 443 

Answer: B