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2021 Dec JK0-019 pdf exam

Q271. Which of the following wireless technologies can support the GREATEST distance on either 2.4GHz or 5GHz frequencies? 

A. 802.11a 

B. 802.11b 

C. 802.11g 

D. 802.11n 

Answer: D 


Q272. Which of the following is equipment provided by the telephone company that provides remote diagnostic and loopback services for subscriber lines? 

A. 66 block 

B. Demarc 

C. Smart jack 

D. 110 block 

Answer: C 


Q273. Which of the following defines access for a network? 

A. ACL 

B. RDP 

C. RAS 

D. ARP 

Answer: A 


Q274. Which of the following protocols is commonly used for VoIP technology? 

A. Telnet 

B. SMTP 

C. SIP 

D. SNMP 

Answer: C 


Q275. Determining when to retransmit frames is an example of which of the following Ethernet properties? 

A. Carrier sense 

B. Collision detection 

C. Multiple access points 

D. Collision avoidance 

Answer: B 


Regenerate JK0-019 training:

Q276. 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 


Q277. Which of the following protocols uses port 3389?

A. IMAP

B. DHCP

C. SSH 

D.RDP

Answer: D


Q278. A technician is troubleshooting a network connectivity issue. Given the following abbreviated trace route output: 

1 192.168.1.1 

2 172.16.40.1 

310.4.0.1 

4172.16.40.1 

Which of the following is MOST likely occurring? 

A. Switching loop 

B. Broadcast storm 

C. IP conflict 

D. Routing loop 

Answer: D 


Q279. Which of the following is an example of two-factor authentication? 

A. A username and PIN 

B. A username and password 

C. A username, password, finger print scan, and smart card 

D. A username, password, and key fob number 

Answer: D 


Q280. A company is about to install a second network connection with a new ISP. Which of the following routing protocols is the BEST choice? 

A. IS-IS 

B. BGP 

C. OSPF 

D. RIP 

Answer: B