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2021 Dec JK0-019 practice question

Q211. A packet sniffer is MOST likely used to do which of the following? 

A. Prevent network based attacks 

B. Capture and analyze network traffic 

C. Route IP packets to remote destinations 

D. Record the switch ARP table 

Answer: B 


Q212. Sandy, a network administrator, needs to facilitate traffic from several VLANs over a single port. Which of the following configuration changes would facilitate access? 

A. Traffic filtering 

B. Trunking 

C. MAC filtering 

D. Port mirroring 

Answer: B 


Q213. Which of the following TCP/IP and OSI model layers retransmits a TCP packet if it is not received successfully at its destination? 

A. The transport OSI model layer and the transport TCP/IP model layer 

B. The transport OSI model layer and the Internet TCP/IP model layer 

C. The network OSI model layer and the transport TCP/IP model layer 

D. The network OSI model layer and the Internet TCP/IP model layer 

Answer: A 


Q214. An administrator needs to authenticate users to the network, authorize network activities, and account for activities done. Which of the following are services that will BEST meet these goals? (Select TWO). 

A. TACACS+ 

B. RADIUS 

C. Kerberos 

D. 802.1X 

E. RRAS 

Answer: AB 


Q215. Which of the following devices will allow a technician to measure the amount of data that is capable of traversing the network? 

A. Event logs 

B. Throughput tester 

C. Packet sniffers 

D. OTDR 

Answer: B 


Up to the immediate present JK0-019 practice exam:

Q216. Which of the following subnet masks would allow for 192.168.0.3 and 192.168.0.240 to be in the same subnet? 

A. 255.255.255.0 

B. 255.255.255.128 

C. 255.255.255.192 

D. 255.255.255.248 

Answer: A 


Q217. Which of the following allows a technician to mask a private network of IP addresses behind one public IP address? 

A. NAT 

B. Subnetting 

C. DHCP 

D. DNS 

Answer: A 


Q218. A demarcation point is usually installed and managed by which of the following providers? 

A. Web host provider 

B. VoIP company 

C. Telephone company 

D. Hardware manufacturer 

Answer: C 


Q219. A network consultant is asked to set up a wireless network in a home. The home user wants the wireless network to be available in every comer of the house. Which of the following additional information will the technician need to determine the equipment for the installation? (Select TWO). 

A. The length of the house 

B. How many rooms are in the house 

C. How many users will be using the wireless network 

D. The building material of the house 

E. The cost of the house 

Answer: AD 


Q220. Joe, a client, has observed non-employees sitting in his parking lot and surfing on his unsecured wireless connection. Which of the following could be employed to potentially prevent this? (Select TWO). 

A. PoE 

B. VLANs 

C. MTU black hole 

D. GBIC installation 

E. WPA 

F. Reduction of signal gain 

Answer: EF